replace model ID string matching with architecture-based checks in tokenizer loading

Use config.json model_type field instead of fragile substring matching on model IDs for architecture detection in tokenizer loading. Falls back to string matching when config.json is unavailable. Closes #1371 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-18 14:55:13 -05:00 · 2026-02-17 10:19:09 -08:00
77 changed files with 1733 additions and 1002 deletions
--- a/.mlx_typings/mlx_lm/models/glm_moe_dsa.pyi
+++ b/.mlx_typings/mlx_lm/models/glm_moe_dsa.pyi
@@ -1,46 +0,0 @@
-"""Type stubs for mlx_lm.models.glm_moe_dsa"""
-
-from dataclasses import dataclass
-from typing import Any, Dict, Optional
-
-from .base import BaseModelArgs
-from .deepseek_v32 import Model as DSV32Model
-
-@dataclass
-class ModelArgs(BaseModelArgs):
-    model_type: str
-    vocab_size: int
-    hidden_size: int
-    index_head_dim: int
-    index_n_heads: int
-    index_topk: int
-    intermediate_size: int
-    moe_intermediate_size: int
-    num_hidden_layers: int
-    num_attention_heads: int
-    num_key_value_heads: int
-    n_shared_experts: Optional[int]
-    n_routed_experts: Optional[int]
-    routed_scaling_factor: float
-    kv_lora_rank: int
-    q_lora_rank: int
-    qk_rope_head_dim: int
-    v_head_dim: int
-    qk_nope_head_dim: int
-    topk_method: str
-    scoring_func: str
-    norm_topk_prob: bool
-    n_group: int
-    topk_group: int
-    num_experts_per_tok: int
-    moe_layer_freq: int
-    first_k_dense_replace: int
-    max_position_embeddings: int
-    rms_norm_eps: float
-    rope_parameters: Dict[str, Any]
-    attention_bias: bool
-    rope_scaling: Dict[str, Any] | None
-    rope_theta: float | None
-
-class Model(DSV32Model):
-    def __init__(self, config: ModelArgs) -> None: ...
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -141,6 +141,12 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "76a2e8124351fda1ef8aaaa3bbd7ebbcb486bbcd4225aca0aa0d84bb2db8fecb"

+[[package]]
+name = "arrayvec"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c02d123df017efcdfbd739ef81735b36c5ba83ec3c59c80a9d7ecc718f92e50"
+
 [[package]]
 name = "asn1-rs"
 version = "0.7.1"
@@ -298,6 +304,19 @@ version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "55248b47b0caf0546f7988906588779981c43bb1bc9d0c44087278f80cdb44ba"

+[[package]]
+name = "bigdecimal"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "560f42649de9fa436b73517378a147ec21f6c997a546581df4b4b31677828934"
+dependencies = [
+ "autocfg",
+ "libm",
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "bimap"
 version = "0.6.3"
@@ -497,6 +516,15 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2f421161cb492475f1661ddc9815a745a1c894592070661180fdec3d4872e9c3"

+[[package]]
+name = "convert_case"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "633458d4ef8c78b72454de2d54fd6ab2e60f9e02be22f3c6104cdc8a4e0fceb9"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.9.4"
@@ -718,6 +746,29 @@ dependencies = [
 "powerfmt",
 ]

+[[package]]
+name = "derive_more"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "10b768e943bed7bf2cab53df09f4bc34bfd217cdb57d971e769874c9a6710618"
+dependencies = [
+ "derive_more-impl",
+]
+
+[[package]]
+name = "derive_more-impl"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d286bfdaf75e988b4a78e013ecd79c581e06399ab53fbacd2d916c2f904f30b"
+dependencies = [
+ "convert_case",
+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "syn 2.0.111",
+ "unicode-xid",
+]
+
 [[package]]
 name = "digest"
 version = "0.10.7"
@@ -888,17 +939,22 @@ name = "exo_pyo3_bindings"
 version = "0.0.1"
 dependencies = [
 "delegate",
+ "derive_more",
 "env_logger",
 "extend",
- "futures-lite",
+ "futures",
+ "impl-trait-for-tuples",
 "libp2p",
 "log",
 "networking",
+ "once_cell",
 "pin-project",
 "pyo3",
 "pyo3-async-runtimes",
 "pyo3-log",
 "pyo3-stub-gen",
+ "thiserror 2.0.17",
+ "thread_local",
 "tokio",
 "util",
 ]
@@ -914,12 +970,6 @@ dependencies = [
 "syn 2.0.111",
 ]

-[[package]]
-name = "fastrand"
-version = "2.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
-
 [[package]]
 name = "ff"
 version = "0.13.1"
@@ -1028,10 +1078,7 @@ version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f78e10609fe0e0b3f4157ffab1876319b5b0db102a2c60dc4626306dc46b44ad"
 dependencies = [
- "fastrand",
 "futures-core",
- "futures-io",
- "parking",
 "pin-project-lite",
 ]

@@ -1593,6 +1640,17 @@ dependencies = [
 "xmltree",
 ]

+[[package]]
+name = "impl-trait-for-tuples"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0eb5a3343abf848c0984fe4604b2b105da9539376e24fc0a3b0007411ae4fd9"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.111",
+]
+
 [[package]]
 name = "indexmap"
 version = "2.12.1"
@@ -1771,6 +1829,12 @@ version = "0.2.178"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37c93d8daa9d8a012fd8ab92f088405fb202ea0b6ab73ee2482ae66af4f42091"

+[[package]]
+name = "libm"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f9fbbcab51052fe104eb5e5d351cf728d30a5be1fe14d9be8a3b097481fb97de"
+
 [[package]]
 name = "libp2p"
 version = "0.56.0"
@@ -2760,14 +2824,16 @@ name = "networking"
 version = "0.0.1"
 dependencies = [
 "delegate",
+ "derive_more",
 "either",
 "extend",
- "futures-lite",
+ "futures",
 "futures-timer",
+ "impl-trait-for-tuples",
 "keccak-const",
 "libp2p",
 "log",
- "pin-project",
+ "thiserror 2.0.17",
 "tokio",
 "tracing-subscriber",
 "util",
@@ -2852,6 +2918,17 @@ dependencies = [
 "num-traits",
 ]

+[[package]]
+name = "num-rational"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f83d14da390562dca69fc84082e73e548e1ad308d24accdedd2720017cb37824"
+dependencies = [
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.19"
@@ -3202,14 +3279,28 @@ version = "0.27.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab53c047fcd1a1d2a8820fe84f05d6be69e9526be40cb03b73f86b6b03e6d87d"
 dependencies = [
+ "bigdecimal",
+ "either",
+ "hashbrown 0.16.1",
+ "indexmap",
 "indoc",
+ "inventory",
 "libc",
+ "lock_api",
 "memoffset",
+ "num-bigint",
+ "num-complex",
+ "num-rational",
+ "num-traits",
 "once_cell",
+ "ordered-float",
+ "parking_lot",
 "portable-atomic",
 "pyo3-build-config",
 "pyo3-ffi",
 "pyo3-macros",
+ "rust_decimal",
+ "smallvec",
 "unindent",
 ]

@@ -3650,6 +3741,16 @@ dependencies = [
 "tokio",
 ]

+[[package]]
+name = "rust_decimal"
+version = "1.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "35affe401787a9bd846712274d97654355d21b2a2c092a3139aabe31e9022282"
+dependencies = [
+ "arrayvec",
+ "num-traits",
+]
+
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"
@@ -4514,12 +4615,24 @@ version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9312f7c4f6ff9069b165498234ce8be658059c6728633667c526e27dc2cf1df5"

+[[package]]
+name = "unicode-segmentation"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6ccf251212114b54433ec949fd6a7841275f9ada20dddd2f29e9ceea4501493"
+
 [[package]]
 name = "unicode-width"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4ac048d71ede7ee76d585517add45da530660ef4390e49b098733c6e897f254"

+[[package]]
+name = "unicode-xid"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
+
 [[package]]
 name = "unicode_names2"
 version = "1.3.0"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,20 +26,49 @@ opt-level = 3
 networking = { path = "rust/networking" }
 util = { path = "rust/util" }

+# Proc-macro authoring tools
+syn = "2.0"
+quote = "1.0"
+proc-macro2 = "1.0"
+darling = "0.20"
+
 # Macro dependecies
 extend = "1.2"
 delegate = "0.13"
+impl-trait-for-tuples = "0.2"
+clap = "4.5"
+derive_more = { version = "2.0.1", features = ["display"] }
+pin-project = "1"

 # Utility dependencies
+itertools = "0.14"
+thiserror = "2"
+internment = "0.8"
+recursion = "0.5"
+regex = "1.11"
+once_cell = "1.21"
+thread_local = "1.1"
+bon = "3.4"
+generativity = "1.1"
+anyhow = "1.0"
 keccak-const = "0.2"

+# Functional generics/lenses frameworks
+frunk_core = "0.4"
+frunk = "0.4"
+frunk_utils = "0.2"
+frunk-enum-core = "0.3"
+
 # Async dependencies
 tokio = "1.46"
-futures-lite = "2.6.1"
+futures = "0.3"
+futures-util = "0.3"
 futures-timer = "3.0"

 # Data structures
 either = "1.15"
+ordered-float = "5.0"
+ahash = "0.8"

 # Tracing/logging
 log = "0.4"
--- a/README.md
+++ b/README.md
@@ -72,23 +72,16 @@ There are two ways to run exo:

 ### Run from Source (macOS)

-If you have [Nix](https://nixos.org/) installed, you can skip most of the steps below and run exo directly (after accepting the Cachix cache):
-
-```bash
-nix run .#exo
-```
-
 **Prerequisites:**
- [Xcode](https://developer.apple.com/xcode/) (provides the Metal ToolChain required for MLX compilation)
 - [brew](https://github.com/Homebrew/brew) (for simple package management on macOS)
-
+  
  ```bash
  /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
  ```
 - [uv](https://github.com/astral-sh/uv) (for Python dependency management)
 - [macmon](https://github.com/vladkens/macmon) (for hardware monitoring on Apple Silicon)
 - [node](https://github.com/nodejs/node) (for building the dashboard)
-
+  
  ```bash
  brew install uv macmon node
  ```
--- a/dashboard/src/lib/components/ChatForm.svelte
+++ b/dashboard/src/lib/components/ChatForm.svelte
@@ -103,7 +103,7 @@
  const modelSupportsThinking = $derived(() => {
    if (!currentModel) return false;
    const caps = modelCapabilities[currentModel] || [];
-    return caps.includes("thinking_toggle") && caps.includes("text");
+    return caps.includes("thinking") && caps.includes("text");
  });

  const isEditOnlyWithoutImage = $derived(
--- a/dashboard/src/lib/components/ImageParamsPanel.svelte
+++ b/dashboard/src/lib/components/ImageParamsPanel.svelte
@@ -59,14 +59,13 @@
  }

  const sizeOptions: ImageGenerationParams["size"][] = [
-    "auto",
    "512x512",
    "768x768",
    "1024x1024",
    "1024x768",
    "768x1024",
-    "1024x1536",
-    "1536x1024",
+    "1024x1365",
+    "1365x1024",
  ];

  const qualityOptions: ImageGenerationParams["quality"][] = [
@@ -177,90 +176,92 @@
 <div class="border-b border-exo-medium-gray/30 px-3 py-2">
  <!-- Basic params row -->
  <div class="flex items-center gap-3 flex-wrap">
-    <!-- Size -->
-    <div class="flex items-center gap-1.5">
-      <span class="text-xs text-exo-light-gray uppercase tracking-wider"
-        >SIZE:</span
-      >
-      <div class="relative">
-        <button
-          bind:this={sizeButtonRef}
-          type="button"
-          onclick={() => (isSizeDropdownOpen = !isSizeDropdownOpen)}
-          class="bg-exo-medium-gray/50 border border-exo-yellow/30 rounded pl-2 pr-6 py-1 text-xs font-mono text-exo-yellow cursor-pointer transition-all duration-200 hover:border-exo-yellow/50 focus:outline-none focus:border-exo-yellow/70 {isSizeDropdownOpen
-            ? 'border-exo-yellow/70'
-            : ''}"
+    <!-- Size (hidden in edit mode - output size comes from input image) -->
+    {#if !isEditMode}
+      <div class="flex items-center gap-1.5">
+        <span class="text-xs text-exo-light-gray uppercase tracking-wider"
+          >SIZE:</span
        >
-          {params.size.toUpperCase()}
-        </button>
-        <div
-          class="absolute right-1.5 top-1/2 -translate-y-1/2 pointer-events-none transition-transform duration-200 {isSizeDropdownOpen
-            ? 'rotate-180'
-            : ''}"
-        >
-          <svg
-            class="w-3 h-3 text-exo-yellow/60"
-            fill="none"
-            viewBox="0 0 24 24"
-            stroke="currentColor"
+        <div class="relative">
+          <button
+            bind:this={sizeButtonRef}
+            type="button"
+            onclick={() => (isSizeDropdownOpen = !isSizeDropdownOpen)}
+            class="bg-exo-medium-gray/50 border border-exo-yellow/30 rounded pl-2 pr-6 py-1 text-xs font-mono text-exo-yellow cursor-pointer transition-all duration-200 hover:border-exo-yellow/50 focus:outline-none focus:border-exo-yellow/70 {isSizeDropdownOpen
+              ? 'border-exo-yellow/70'
+              : ''}"
          >
-            <path
-              stroke-linecap="round"
-              stroke-linejoin="round"
-              stroke-width="2"
-              d="M19 9l-7 7-7-7"
-            />
-          </svg>
-        </div>
-      </div>
-
-      {#if isSizeDropdownOpen}
-        <!-- Backdrop to close dropdown -->
-        <button
-          type="button"
-          class="fixed inset-0 z-[9998] cursor-default"
-          onclick={() => (isSizeDropdownOpen = false)}
-          aria-label="Close dropdown"
-        ></button>
-
-        <!-- Dropdown Panel - fixed positioning to escape overflow:hidden -->
-        <div
-          class="fixed bg-exo-dark-gray border border-exo-yellow/30 rounded shadow-lg shadow-black/50 z-[9999] max-h-48 overflow-y-auto overflow-x-hidden min-w-max"
-          style="bottom: calc(100vh - {sizeDropdownPosition()
-            .top}px + 4px); left: {sizeDropdownPosition().left}px;"
-        >
-          <div class="py-1">
-            {#each sizeOptions as size}
-              <button
-                type="button"
-                onclick={() => selectSize(size)}
-                class="w-full px-3 py-1.5 text-left text-xs font-mono tracking-wide transition-colors duration-100 flex items-center gap-2 {params.size ===
-                size
-                  ? 'bg-transparent text-exo-yellow'
-                  : 'text-exo-light-gray hover:text-exo-yellow'}"
-              >
-                {#if params.size === size}
-                  <svg
-                    class="w-3 h-3 flex-shrink-0"
-                    fill="currentColor"
-                    viewBox="0 0 20 20"
-                  >
-                    <path
-                      fill-rule="evenodd"
-                      d="M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z"
-                      clip-rule="evenodd"
-                    />
-                  </svg>
-                {:else}
-                  <span class="w-3"></span>
-                {/if}
-                <span>{size.toUpperCase()}</span>
-              </button>
-            {/each}
+            {params.size}
+          </button>
+          <div
+            class="absolute right-1.5 top-1/2 -translate-y-1/2 pointer-events-none transition-transform duration-200 {isSizeDropdownOpen
+              ? 'rotate-180'
+              : ''}"
+          >
+            <svg
+              class="w-3 h-3 text-exo-yellow/60"
+              fill="none"
+              viewBox="0 0 24 24"
+              stroke="currentColor"
+            >
+              <path
+                stroke-linecap="round"
+                stroke-linejoin="round"
+                stroke-width="2"
+                d="M19 9l-7 7-7-7"
+              />
+            </svg>
          </div>
        </div>
-      {/if}
-    </div>
+
+        {#if isSizeDropdownOpen}
+          <!-- Backdrop to close dropdown -->
+          <button
+            type="button"
+            class="fixed inset-0 z-[9998] cursor-default"
+            onclick={() => (isSizeDropdownOpen = false)}
+            aria-label="Close dropdown"
+          ></button>
+
+          <!-- Dropdown Panel - fixed positioning to escape overflow:hidden -->
+          <div
+            class="fixed bg-exo-dark-gray border border-exo-yellow/30 rounded shadow-lg shadow-black/50 z-[9999] max-h-48 overflow-y-auto min-w-max"
+            style="bottom: calc(100vh - {sizeDropdownPosition()
+              .top}px + 4px); left: {sizeDropdownPosition().left}px;"
+          >
+            <div class="py-1">
+              {#each sizeOptions as size}
+                <button
+                  type="button"
+                  onclick={() => selectSize(size)}
+                  class="w-full px-3 py-1.5 text-left text-xs font-mono tracking-wide transition-colors duration-100 flex items-center gap-2 {params.size ===
+                  size
+                    ? 'bg-transparent text-exo-yellow'
+                    : 'text-exo-light-gray hover:text-exo-yellow'}"
+                >
+                  {#if params.size === size}
+                    <svg
+                      class="w-3 h-3 flex-shrink-0"
+                      fill="currentColor"
+                      viewBox="0 0 20 20"
+                    >
+                      <path
+                        fill-rule="evenodd"
+                        d="M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z"
+                        clip-rule="evenodd"
+                      />
+                    </svg>
+                  {:else}
+                    <span class="w-3"></span>
+                  {/if}
+                  <span>{size}</span>
+                </button>
+              {/each}
+            </div>
+          </div>
+        {/if}
+      </div>
+    {/if}

    <!-- Quality -->
    <div class="flex items-center gap-1.5">
@@ -310,7 +311,7 @@

        <!-- Dropdown Panel - fixed positioning to escape overflow:hidden -->
        <div
-          class="fixed bg-exo-dark-gray border border-exo-yellow/30 rounded shadow-lg shadow-black/50 z-[9999] max-h-48 overflow-y-auto overflow-x-hidden min-w-max"
+          class="fixed bg-exo-dark-gray border border-exo-yellow/30 rounded shadow-lg shadow-black/50 z-[9999] max-h-48 overflow-y-auto min-w-max"
          style="bottom: calc(100vh - {qualityDropdownPosition()
            .top}px + 4px); left: {qualityDropdownPosition().left}px;"
        >
--- a/dashboard/src/lib/stores/app.svelte.ts
+++ b/dashboard/src/lib/stores/app.svelte.ts
@@ -306,14 +306,13 @@ const IMAGE_PARAMS_STORAGE_KEY = "exo-image-generation-params";
 export interface ImageGenerationParams {
  // Basic params
  size:
-    | "auto"
    | "512x512"
    | "768x768"
    | "1024x1024"
    | "1024x768"
    | "768x1024"
-    | "1024x1536"
-    | "1536x1024";
+    | "1024x1365"
+    | "1365x1024";
  quality: "low" | "medium" | "high";
  outputFormat: "png" | "jpeg";
  numImages: number;
@@ -337,7 +336,7 @@ export interface EditingImage {
 }

 const DEFAULT_IMAGE_PARAMS: ImageGenerationParams = {
-  size: "auto",
+  size: "1024x1024",
  quality: "medium",
  outputFormat: "png",
  numImages: 1,
--- a/flake.nix
+++ b/flake.nix
@@ -74,6 +74,7 @@
      perSystem =
        { config, self', inputs', pkgs, lib, system, ... }:
        let
+          fenixToolchain = inputs'.fenix.packages.complete;
          # Use pinned nixpkgs for swift-format (swift is broken on x86_64-linux in newer nixpkgs)
          pkgsSwift = import inputs.nixpkgs-swift { inherit system; };
        in
@@ -114,7 +115,7 @@
          packages = lib.optionalAttrs pkgs.stdenv.hostPlatform.isDarwin (
            let
              uvLock = builtins.fromTOML (builtins.readFile ./uv.lock);
-              mlxPackage = builtins.head (builtins.filter (p: p.name == "mlx" && p.source ? git) uvLock.package);
+              mlxPackage = builtins.head (builtins.filter (p: p.name == "mlx") uvLock.package);
              uvLockMlxVersion = mlxPackage.version;
            in
            {
--- a/nix/mlx.nix
+++ b/nix/mlx.nix
@@ -41,16 +41,16 @@ let

  mlx = stdenv.mkDerivation rec {
    pname = "mlx";
-    version = let v = "0.30.7.dev20260218+14841977"; in
+    version = let v = "0.30.6"; in
      assert v == uvLockMlxVersion || throw "MLX version mismatch: nix/mlx.nix has ${v} but uv.lock has ${uvLockMlxVersion}. Update both the version and hash in nix/mlx.nix.";
      v;
    pyproject = true;

    src = fetchFromGitHub {
-      owner = "rltakashige";
-      repo = "mlx-jaccl-fix-small-recv";
-      rev = "1484197707f35186ad3bd614357c7c47fdf86ebc";
-      hash = "sha256-FupCMoK/SF/ldfKuvMSAKECcOP8c+ANgkQlPZttDsLk=";
+      owner = "ml-explore";
+      repo = "mlx";
+      tag = "v${version}";
+      hash = "sha256-avD5EGhwgmPdXLAyQSqTO6AXk/W3ziH+f6AetjK3Sdo=";
    };

    patches = [
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,9 +17,9 @@ dependencies = [
    "loguru>=0.7.3",
    "exo_pyo3_bindings", # rust bindings
    "anyio==4.11.0",
-    "mlx; sys_platform == 'darwin'",
+    "mlx==0.30.6; sys_platform == 'darwin'",
    "mlx[cpu]==0.30.6; sys_platform == 'linux'",
-    "mlx-lm==0.30.7",
+    "mlx-lm==0.30.6",
    "tiktoken>=0.12.0", # required for kimi k2 tokenizer
    "hypercorn>=0.18.0",
    "openai-harmony>=0.0.8",
@@ -64,7 +64,6 @@ members = [

 [tool.uv.sources]
 exo_pyo3_bindings = { workspace = true }
-mlx = { git = "https://github.com/rltakashige/mlx-jaccl-fix-small-recv.git", branch = "address-rdma-gpu-locks", marker = "sys_platform == 'darwin'" }
 #mlx-lm = { git = "https://github.com/davidmcc73/mlx-lm", branch = "stable" }
 # Uncomment to use local mlx/mlx-lm development versions:
 # mlx = { path = "/Users/Shared/mlx", editable=true }
--- a/python/parts.nix
+++ b/python/parts.nix
@@ -58,21 +58,6 @@
        lib.optionalAttrs pkgs.stdenv.hostPlatform.isLinux (
          (lib.mapAttrs (_: ignoreMissing) nvidiaPackages) // {
            mlx = ignoreMissing prev.mlx;
-            mlx-cuda-13 = prev.mlx-cuda-13.overrideAttrs (old: {
-              buildInputs = (old.buildInputs or [ ]) ++ [
-                final.nvidia-cublas
-                final.nvidia-cuda-nvrtc
-                final.nvidia-cudnn-cu13
-                final.nvidia-nccl-cu13
-              ];
-              preFixup = ''
-                addAutoPatchelfSearchPath ${final.nvidia-cublas}
-                addAutoPatchelfSearchPath ${final.nvidia-cuda-nvrtc}
-                addAutoPatchelfSearchPath ${final.nvidia-cudnn-cu13}
-                addAutoPatchelfSearchPath ${final.nvidia-nccl-cu13}
-              '';
-              autoPatchelfIgnoreMissingDeps = [ "libcuda.so.1" ];
-            });
            torch = ignoreMissing prev.torch;
            triton = ignoreMissing prev.triton;
          }
@@ -89,25 +74,14 @@
          linuxOverlay
        ]
      );
-      # mlx-cpu and mlx-cuda-13 both ship mlx/ site-packages files; keep first.
-      # mlx-cpu/mlx-cuda-13 and nvidia-cudnn-cu12/cu13 ship overlapping files.
-      venvCollisionPaths = lib.optionals pkgs.stdenv.hostPlatform.isLinux [
-        "lib/python3.13/site-packages/mlx*"
-        "lib/python3.13/site-packages/nvidia*"
-      ];
-
-      exoVenv = (pythonSet.mkVirtualEnv "exo-env" workspace.deps.default).overrideAttrs {
-        venvIgnoreCollisions = venvCollisionPaths;
-      };
+      exoVenv = pythonSet.mkVirtualEnv "exo-env" workspace.deps.default;

      # Virtual environment with dev dependencies for testing
-      testVenv = (pythonSet.mkVirtualEnv "exo-test-env" (
+      testVenv = pythonSet.mkVirtualEnv "exo-test-env" (
        workspace.deps.default // {
          exo = [ "dev" ]; # Include pytest, pytest-asyncio, pytest-env
        }
-      )).overrideAttrs {
-        venvIgnoreCollisions = venvCollisionPaths;
-      };
+      );

      mkPythonScript = name: path: pkgs.writeShellApplication {
        inherit name;
--- a/resources/inference_model_cards/mlx-community--DeepSeek-V3.1-4bit.toml
+++ b/resources/inference_model_cards/mlx-community--DeepSeek-V3.1-4bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "deepseek"
 quantization = "4bit"
 base_model = "DeepSeek V3.1"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 405874409472
--- a/resources/inference_model_cards/mlx-community--DeepSeek-V3.1-8bit.toml
+++ b/resources/inference_model_cards/mlx-community--DeepSeek-V3.1-8bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "deepseek"
 quantization = "8bit"
 base_model = "DeepSeek V3.1"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 765577920512
--- a/resources/inference_model_cards/mlx-community--GLM-4.5-Air-8bit.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-4.5-Air-8bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "glm"
 quantization = "8bit"
 base_model = "GLM 4.5 Air"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 122406567936
--- a/resources/inference_model_cards/mlx-community--GLM-4.5-Air-bf16.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-4.5-Air-bf16.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "glm"
 quantization = "bf16"
 base_model = "GLM 4.5 Air"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 229780750336
--- a/resources/inference_model_cards/mlx-community--GLM-4.7-4bit.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-4.7-4bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "glm"
 quantization = "4bit"
 base_model = "GLM 4.7"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 198556925568
--- a/resources/inference_model_cards/mlx-community--GLM-4.7-6bit.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-4.7-6bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "glm"
 quantization = "6bit"
 base_model = "GLM 4.7"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 286737579648
--- a/resources/inference_model_cards/mlx-community--GLM-4.7-8bit-gs32.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-4.7-8bit-gs32.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "glm"
 quantization = "8bit"
 base_model = "GLM 4.7"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 396963397248
--- a/resources/inference_model_cards/mlx-community--GLM-4.7-Flash-4bit.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-4.7-Flash-4bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "glm"
 quantization = "4bit"
 base_model = "GLM 4.7 Flash"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 19327352832
--- a/resources/inference_model_cards/mlx-community--GLM-4.7-Flash-5bit.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-4.7-Flash-5bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "glm"
 quantization = "5bit"
 base_model = "GLM 4.7 Flash"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 22548578304
--- a/resources/inference_model_cards/mlx-community--GLM-4.7-Flash-6bit.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-4.7-Flash-6bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "glm"
 quantization = "6bit"
 base_model = "GLM 4.7 Flash"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 26843545600
--- a/resources/inference_model_cards/mlx-community--GLM-4.7-Flash-8bit.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-4.7-Flash-8bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "glm"
 quantization = "8bit"
 base_model = "GLM 4.7 Flash"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 34359738368
--- a/resources/inference_model_cards/mlx-community--GLM-5-8bit.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-5-8bit.toml
@@ -1,12 +0,0 @@
-model_id = "mlx-community/GLM-5-8bit-MXFP8"
-n_layers = 78
-hidden_size = 6144
-supports_tensor = true
-tasks = ["TextGeneration"]
-family = "glm"
-quantization = "8bit"
-base_model = "GLM-5"
-capabilities = ["text", "thinking"]
-
-[storage_size]
-in_bytes = 790517400864
--- a/resources/inference_model_cards/mlx-community--GLM-5-MXFP4-Q8.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-5-MXFP4-Q8.toml
@@ -1,12 +0,0 @@
-model_id = "mlx-community/GLM-5-MXFP4-Q8"
-n_layers = 78
-hidden_size = 6144
-supports_tensor = true
-tasks = ["TextGeneration"]
-family = "glm"
-quantization = "MXFP4-Q8"
-base_model = "GLM-5"
-capabilities = ["text", "thinking"]
-
-[storage_size]
-in_bytes = 405478939008
--- a/resources/inference_model_cards/mlx-community--GLM-5-bf16.toml
+++ b/resources/inference_model_cards/mlx-community--GLM-5-bf16.toml
@@ -1,12 +0,0 @@
-model_id = "mlx-community/GLM-5"
-n_layers = 78
-hidden_size = 6144
-supports_tensor = true
-tasks = ["TextGeneration"]
-family = "glm"
-quantization = "bf16"
-base_model = "GLM-5"
-capabilities = ["text", "thinking"]
-
-[storage_size]
-in_bytes = 1487822475264
--- a/resources/inference_model_cards/mlx-community--Kimi-K2-Thinking.toml
+++ b/resources/inference_model_cards/mlx-community--Kimi-K2-Thinking.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "kimi"
 quantization = ""
 base_model = "Kimi K2"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 706522120192
--- a/resources/inference_model_cards/mlx-community--Kimi-K2.5.toml
+++ b/resources/inference_model_cards/mlx-community--Kimi-K2.5.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "kimi"
 quantization = ""
 base_model = "Kimi K2.5"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 662498705408
--- a/resources/inference_model_cards/mlx-community--MiniMax-M2.1-3bit.toml
+++ b/resources/inference_model_cards/mlx-community--MiniMax-M2.1-3bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "minimax"
 quantization = "3bit"
 base_model = "MiniMax M2.1"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 100086644736
--- a/resources/inference_model_cards/mlx-community--MiniMax-M2.1-8bit.toml
+++ b/resources/inference_model_cards/mlx-community--MiniMax-M2.1-8bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "minimax"
 quantization = "8bit"
 base_model = "MiniMax M2.1"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 242986745856
--- a/resources/inference_model_cards/mlx-community--Qwen3-0.6B-4bit.toml
+++ b/resources/inference_model_cards/mlx-community--Qwen3-0.6B-4bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "qwen"
 quantization = "4bit"
 base_model = "Qwen3 0.6B"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 342884352
--- a/resources/inference_model_cards/mlx-community--Qwen3-0.6B-8bit.toml
+++ b/resources/inference_model_cards/mlx-community--Qwen3-0.6B-8bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "qwen"
 quantization = "8bit"
 base_model = "Qwen3 0.6B"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 698351616
--- a/resources/inference_model_cards/mlx-community--Qwen3-235B-A22B-Instruct-2507-4bit.toml
+++ b/resources/inference_model_cards/mlx-community--Qwen3-235B-A22B-Instruct-2507-4bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "qwen"
 quantization = "4bit"
 base_model = "Qwen3 235B"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 141733920768
--- a/resources/inference_model_cards/mlx-community--Qwen3-235B-A22B-Instruct-2507-8bit.toml
+++ b/resources/inference_model_cards/mlx-community--Qwen3-235B-A22B-Instruct-2507-8bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "qwen"
 quantization = "8bit"
 base_model = "Qwen3 235B"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 268435456000
--- a/resources/inference_model_cards/mlx-community--Qwen3-30B-A3B-4bit.toml
+++ b/resources/inference_model_cards/mlx-community--Qwen3-30B-A3B-4bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "qwen"
 quantization = "4bit"
 base_model = "Qwen3 30B"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 17612931072
--- a/resources/inference_model_cards/mlx-community--Qwen3-30B-A3B-8bit.toml
+++ b/resources/inference_model_cards/mlx-community--Qwen3-30B-A3B-8bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "qwen"
 quantization = "8bit"
 base_model = "Qwen3 30B"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 33279705088
--- a/resources/inference_model_cards/mlx-community--Qwen3-Next-80B-A3B-Thinking-4bit.toml
+++ b/resources/inference_model_cards/mlx-community--Qwen3-Next-80B-A3B-Thinking-4bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "qwen"
 quantization = "4bit"
 base_model = "Qwen3 Next 80B"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 47080074240
--- a/resources/inference_model_cards/mlx-community--Qwen3-Next-80B-A3B-Thinking-8bit.toml
+++ b/resources/inference_model_cards/mlx-community--Qwen3-Next-80B-A3B-Thinking-8bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "qwen"
 quantization = "8bit"
 base_model = "Qwen3 Next 80B"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 88814387200
--- a/resources/inference_model_cards/mlx-community--Step-3.5-Flash-4bit.toml
+++ b/resources/inference_model_cards/mlx-community--Step-3.5-Flash-4bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "step"
 quantization = "4bit"
 base_model = "Step 3.5 Flash"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 114572190076
--- a/resources/inference_model_cards/mlx-community--Step-3.5-Flash-6bit.toml
+++ b/resources/inference_model_cards/mlx-community--Step-3.5-Flash-6bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "step"
 quantization = "6bit"
 base_model = "Step 3.5 Flash"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 159039627774
--- a/resources/inference_model_cards/mlx-community--Step-3.5-Flash-8Bit.toml
+++ b/resources/inference_model_cards/mlx-community--Step-3.5-Flash-8Bit.toml
@@ -6,7 +6,7 @@ tasks = ["TextGeneration"]
 family = "step"
 quantization = "8bit"
 base_model = "Step 3.5 Flash"
-capabilities = ["text", "thinking", "thinking_toggle"]
+capabilities = ["text", "thinking"]

 [storage_size]
 in_bytes = 209082699847
--- a/rust/exo_pyo3_bindings/Cargo.toml
+++ b/rust/exo_pyo3_bindings/Cargo.toml
@@ -25,17 +25,17 @@ workspace = true
 networking = { workspace = true }

 # interop
-pyo3 = { version = "0.27.2", features = [
-    # "abi3-py313", # tells pyo3 (and maturin) to build using the stable ABI with minimum Python version 3.13
-    # "nightly", # enables better-supported GIL integration
+pyo3 = { version = "0.27.1", features = [
+    # "abi3-py311", # tells pyo3 (and maturin) to build using the stable ABI with minimum Python version 3.11
+    "nightly", # enables better-supported GIL integration
    "experimental-async", # async support in #[pyfunction] & #[pymethods]
    #"experimental-inspect", # inspection of generated binary => easier to automate type-hint generation
    #"py-clone", # adding Clone-ing of `Py<T>` without GIL (may cause panics - remove if panics happen)
-    # "multiple-pymethods", # allows multiple #[pymethods] sections per class
+    "multiple-pymethods", # allows multiple #[pymethods] sections per class

    # integrations with other libraries
-    # "arc_lock", "bigdecimal", "either", "hashbrown", "indexmap", "num-bigint", "num-complex", "num-rational",
-    # "ordered-float", "rust_decimal", "smallvec",
+    "arc_lock", "bigdecimal", "either", "hashbrown", "indexmap", "num-bigint", "num-complex", "num-rational",
+    "ordered-float", "rust_decimal", "smallvec",
    # "anyhow", "chrono", "chrono-local", "chrono-tz", "eyre", "jiff-02", "lock_api", "parking-lot", "time",  "serde",
 ] }
 pyo3-stub-gen = { version = "0.17.2" }
@@ -45,18 +45,33 @@ pyo3-log = "0.13.2"
 # macro dependencies
 extend = { workspace = true }
 delegate = { workspace = true }
+impl-trait-for-tuples = { workspace = true }
+derive_more = { workspace = true }
+pin-project = { workspace = true }

 # async runtime
 tokio = { workspace = true, features = ["full", "tracing"] }
-futures-lite = { workspace = true }
+futures = { workspace = true }

 # utility dependencies
+once_cell = "1.21.3"
+thread_local = "1.1.9"
 util = { workspace = true }
+thiserror = { workspace = true }
+#internment = { workspace = true }
+#recursion = { workspace = true }
+#generativity = { workspace = true }
+#itertools = { workspace = true }
+

 # Tracing
+#tracing = "0.1"
+#tracing-subscriber = "0.3"
+#console-subscriber = "0.1.5"
+#tracing-log = "0.2.0"
 log = { workspace = true }
 env_logger = "0.11"

+
 # Networking
 libp2p = { workspace = true, features = ["full"] }
-pin-project = "1.1.10"
--- a/rust/exo_pyo3_bindings/exo_pyo3_bindings.pyi
+++ b/rust/exo_pyo3_bindings/exo_pyo3_bindings.pyi
@@ -19,7 +19,7 @@ class ConnectionUpdate:
        Whether this is a connection or disconnection event
        """
    @property
-    def peer_id(self) -> builtins.str:
+    def peer_id(self) -> PeerId:
        r"""
        Identity of the peer that we have connected to or disconnected from.
        """
@@ -40,22 +40,92 @@ class Keypair:
    Identity keypair of a node.
    """
    @staticmethod
-    def generate() -> Keypair:
+    def generate_ed25519() -> Keypair:
        r"""
        Generate a new Ed25519 keypair.
        """
    @staticmethod
-    def from_bytes(bytes: bytes) -> Keypair:
+    def generate_ecdsa() -> Keypair:
        r"""
-        Construct an Ed25519 keypair from secret key bytes
+        Generate a new ECDSA keypair.
+        """
+    @staticmethod
+    def generate_secp256k1() -> Keypair:
+        r"""
+        Generate a new Secp256k1 keypair.
+        """
+    @staticmethod
+    def from_protobuf_encoding(bytes: bytes) -> Keypair:
+        r"""
+        Decode a private key from a protobuf structure and parse it as a `Keypair`.
+        """
+    @staticmethod
+    def rsa_from_pkcs8(bytes: bytes) -> Keypair:
+        r"""
+        Decode an keypair from a DER-encoded secret key in PKCS#8 `PrivateKeyInfo`
+        format (i.e. unencrypted) as defined in [RFC5208].
+        
+        [RFC5208]: https://tools.ietf.org/html/rfc5208#section-5
+        """
+    @staticmethod
+    def secp256k1_from_der(bytes: bytes) -> Keypair:
+        r"""
+        Decode a keypair from a DER-encoded Secp256k1 secret key in an `ECPrivateKey`
+        structure as defined in [RFC5915].
+        
+        [RFC5915]: https://tools.ietf.org/html/rfc5915
+        """
+    @staticmethod
+    def ed25519_from_bytes(bytes: bytes) -> Keypair: ...
+    def to_protobuf_encoding(self) -> bytes:
+        r"""
+        Encode a private key as protobuf structure.
+        """
+    def to_peer_id(self) -> PeerId:
+        r"""
+        Convert the `Keypair` into the corresponding `PeerId`.
+        """
+
+@typing.final
+class Multiaddr:
+    r"""
+    Representation of a Multiaddr.
+    """
+    @staticmethod
+    def empty() -> Multiaddr:
+        r"""
+        Create a new, empty multiaddress.
+        """
+    @staticmethod
+    def with_capacity(n: builtins.int) -> Multiaddr:
+        r"""
+        Create a new, empty multiaddress with the given capacity.
+        """
+    @staticmethod
+    def from_bytes(bytes: bytes) -> Multiaddr:
+        r"""
+        Parse a `Multiaddr` value from its byte slice representation.
+        """
+    @staticmethod
+    def from_string(string: builtins.str) -> Multiaddr:
+        r"""
+        Parse a `Multiaddr` value from its string representation.
+        """
+    def len(self) -> builtins.int:
+        r"""
+        Return the length in bytes of this multiaddress.
+        """
+    def is_empty(self) -> builtins.bool:
+        r"""
+        Returns true if the length of this multiaddress is 0.
        """
    def to_bytes(self) -> bytes:
        r"""
-        Get the secret key bytes underlying the keypair
+        Return a copy of this [`Multiaddr`]'s byte representation.
        """
-    def to_node_id(self) -> builtins.str:
+    def to_string(self) -> builtins.str:
        r"""
-        Convert the `Keypair` into the corresponding `PeerId` string, which we use as our NodeId.
+        Convert a Multiaddr to a string.
        """

@typing.final
@@ -110,6 +180,37 @@ class NoPeersSubscribedToTopicError(builtins.Exception):
    def __repr__(self) -> builtins.str: ...
    def __str__(self) -> builtins.str: ...

+@typing.final
+class PeerId:
+    r"""
+    Identifier of a peer of the network.
+    
+    The data is a `CIDv0` compatible multihash of the protobuf encoded public key of the peer
+    as specified in [specs/peer-ids](https://github.com/libp2p/specs/blob/master/peer-ids/peer-ids.md).
+    """
+    @staticmethod
+    def random() -> PeerId:
+        r"""
+        Generates a random peer ID from a cryptographically secure PRNG.
+        
+        This is useful for randomly walking on a DHT, or for testing purposes.
+        """
+    @staticmethod
+    def from_bytes(bytes: bytes) -> PeerId:
+        r"""
+        Parses a `PeerId` from bytes.
+        """
+    def to_bytes(self) -> bytes:
+        r"""
+        Returns a raw bytes representation of this `PeerId`.
+        """
+    def to_base58(self) -> builtins.str:
+        r"""
+        Returns a base-58 encoded string of this `PeerId`.
+        """
+    def __repr__(self) -> builtins.str: ...
+    def __str__(self) -> builtins.str: ...
+
@typing.final
 class ConnectionUpdateType(enum.Enum):
    r"""
--- a/rust/exo_pyo3_bindings/src/allow_threading.rs
+++ b/rust/exo_pyo3_bindings/src/allow_threading.rs
@@ -2,10 +2,11 @@
 //!

 use pin_project::pin_project;
+use pyo3::marker::Ungil;
 use pyo3::prelude::*;
 use std::{
    future::Future,
-    pin::Pin,
+    pin::{Pin, pin},
    task::{Context, Poll},
 };

@@ -25,13 +26,15 @@ where

 impl<F> Future for AllowThreads<F>
 where
-    F: Future + Send,
-    F::Output: Send,
+    F: Future + Ungil,
+    F::Output: Ungil,
 {
    type Output = F::Output;

    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
        let waker = cx.waker();
-        Python::attach(|py| py.detach(|| self.project().0.poll(&mut Context::from_waker(waker))))
+        Python::with_gil(|py| {
+            py.allow_threads(|| self.project().0.poll(&mut Context::from_waker(waker)))
+        })
    }
 }
--- a/rust/exo_pyo3_bindings/src/examples/mod.rs
+++ b/rust/exo_pyo3_bindings/src/examples/mod.rs
@@ -0,0 +1,240 @@
+//! This module exists to hold examples of some pyo3 patterns that may be too complex to
+//! re-create from scratch, but too inhomogenous to create an abstraction/wrapper around.
+//!
+//! Pattern examples include:
+//!  - Async task handles: with GC-integrated cleanup
+//!  - Sync/async callbacks from python: with propper eventloop handling
+//!
+//! Mutability pattern: https://pyo3.rs/v0.26.0/async-await.html#send--static-constraint
+//!  - Store mutable fields in tokio's `Mutex<T>`
+//!  - For async code: take `&self` and `.lock().await`
+//!  - For sync code: take `&mut self` and `.get_mut()`
+
+use crate::ext::{PyResultExt as _, ResultExt as _, TokioRuntimeExt as _};
+use futures::FutureExt as _;
+use futures::future::BoxFuture;
+use pyo3::exceptions::PyRuntimeError;
+use pyo3::prelude::{PyModule, PyModuleMethods as _};
+use pyo3::{
+    Bound, Py, PyAny, PyErr, PyResult, PyTraverseError, PyVisit, Python, pyclass, pymethods,
+};
+use std::time::Duration;
+use tokio::sync::mpsc;
+use tokio::sync::mpsc::error::TryRecvError;
+
+fn needs_tokio_runtime() {
+    tokio::runtime::Handle::current();
+}
+
+type SyncCallback = Box<dyn Fn() + Send + Sync>;
+type AsyncCallback = Box<dyn Fn() -> BoxFuture<'static, ()> + Send + Sync>;
+
+enum AsyncTaskMessage {
+    SyncCallback(SyncCallback),
+    AsyncCallback(AsyncCallback),
+}
+
+async fn async_task(
+    sender: mpsc::UnboundedSender<()>,
+    mut receiver: mpsc::UnboundedReceiver<AsyncTaskMessage>,
+) {
+    log::info!("RUST: async task started");
+
+    // task state
+    let mut interval = tokio::time::interval(Duration::from_secs(1));
+
+    let mut sync_cbs: Vec<SyncCallback> = vec![];
+    let mut async_cbs: Vec<AsyncCallback> = vec![];
+
+    loop {
+        tokio::select! {
+            // handle incoming messages from task-handle
+            message = receiver.recv() => {
+                // handle closed channel by exiting
+                let Some(message) = message else {
+                    log::info!("RUST: channel closed");
+                    break;
+                };
+
+                // dispatch incoming event
+                match message {
+                    AsyncTaskMessage::SyncCallback(cb) => {
+                        sync_cbs.push(cb);
+                    }
+                    AsyncTaskMessage::AsyncCallback(cb) => {
+                        async_cbs.push(cb);
+                    }
+                }
+            }
+
+            // handle all other events
+            _ = interval.tick() => {
+                log::info!("RUST: async task tick");
+
+                // call back all sync callbacks
+                for cb in &sync_cbs {
+                    cb();
+                }
+
+                // call back all async callbacks
+                for cb in &async_cbs {
+                    cb().await;
+                }
+
+                // send event on unbounded channel
+                sender.send(()).expect("handle receiver cannot be closed/dropped");
+            }
+        }
+    }
+
+    log::info!("RUST: async task stopped");
+}
+
+// #[gen_stub_pyclass]
+#[pyclass(name = "AsyncTaskHandle")]
+#[derive(Debug)]
+struct PyAsyncTaskHandle {
+    sender: Option<mpsc::UnboundedSender<AsyncTaskMessage>>,
+    receiver: mpsc::UnboundedReceiver<()>,
+}
+
+#[allow(clippy::expect_used)]
+impl PyAsyncTaskHandle {
+    const fn sender(&self) -> &mpsc::UnboundedSender<AsyncTaskMessage> {
+        self.sender
+            .as_ref()
+            .expect("The sender should only be None after de-initialization.")
+    }
+
+    const fn sender_mut(&mut self) -> &mpsc::UnboundedSender<AsyncTaskMessage> {
+        self.sender
+            .as_mut()
+            .expect("The sender should only be None after de-initialization.")
+    }
+
+    const fn new(
+        sender: mpsc::UnboundedSender<AsyncTaskMessage>,
+        receiver: mpsc::UnboundedReceiver<()>,
+    ) -> Self {
+        Self {
+            sender: Some(sender),
+            receiver,
+        }
+    }
+}
+
+// #[gen_stub_pymethods]
+#[pymethods]
+impl PyAsyncTaskHandle {
+    #[new]
+    fn py_new(py: Python<'_>) -> PyResult<Self> {
+        use pyo3_async_runtimes::tokio::get_runtime;
+
+        // create communication channel TOWARDS our task
+        let (h_sender, t_receiver) = mpsc::unbounded_channel::<AsyncTaskMessage>();
+
+        // create communication channel FROM our task
+        let (t_sender, h_receiver) = mpsc::unbounded_channel::<()>();
+
+        // perform necessary setup within tokio context - or it crashes
+        let () = get_runtime().block_on(async { needs_tokio_runtime() });
+
+        // spawn tokio task with this thread's task-locals - without this, async callbacks on the new threads will not work!!
+        _ = get_runtime().spawn_with_scope(py, async move {
+            async_task(t_sender, t_receiver).await;
+        });
+        Ok(Self::new(h_sender, h_receiver))
+    }
+
+    /// NOTE: exceptions in callbacks are silently ignored until end of execution
+    fn add_sync_callback(
+        &self,
+        // #[gen_stub(override_type(
+        //     type_repr="collections.abc.Callable[[], None]",
+        //     imports=("collections.abc")
+        // ))]
+        callback: Py<PyAny>,
+    ) -> PyResult<()> {
+        // blocking call to async method -> can do non-blocking if needed
+        self.sender()
+            .send(AsyncTaskMessage::SyncCallback(Box::new(move || {
+                _ = Python::with_gil(|py| callback.call0(py).write_unraisable_with(py));
+            })))
+            .pyerr()?;
+        Ok(())
+    }
+
+    /// NOTE: exceptions in callbacks are silently ignored until end of execution
+    fn add_async_callback(
+        &self,
+        // #[gen_stub(override_type(
+        //     type_repr="collections.abc.Callable[[], collections.abc.Awaitable[None]]",
+        //     imports=("collections.abc")
+        // ))]
+        callback: Py<PyAny>,
+    ) -> PyResult<()> {
+        // blocking call to async method -> can do non-blocking if needed
+        self.sender()
+            .send(AsyncTaskMessage::AsyncCallback(Box::new(move || {
+                let c = Python::with_gil(|py| callback.clone_ref(py));
+                async move {
+                    if let Some(f) = Python::with_gil(|py| {
+                        let coroutine = c.call0(py).write_unraisable_with(py)?;
+                        pyo3_async_runtimes::tokio::into_future(coroutine.into_bound(py))
+                            .write_unraisable_with(py)
+                    }) {
+                        _ = f.await.write_unraisable();
+                    }
+                }
+                .boxed()
+            })))
+            .pyerr()?;
+        Ok(())
+    }
+
+    async fn receive_unit(&mut self) -> PyResult<()> {
+        self.receiver
+            .recv()
+            .await
+            .ok_or(PyErr::new::<PyRuntimeError, _>(
+                "cannot receive unit on closed channel",
+            ))
+    }
+
+    fn drain_units(&mut self) -> PyResult<i32> {
+        let mut cnt = 0;
+        loop {
+            match self.receiver.try_recv() {
+                Err(TryRecvError::Disconnected) => {
+                    return Err(PyErr::new::<PyRuntimeError, _>(
+                        "cannot receive unit on closed channel",
+                    ));
+                }
+                Err(TryRecvError::Empty) => return Ok(cnt),
+                Ok(()) => {
+                    cnt += 1;
+                    continue;
+                }
+            }
+        }
+    }
+
+    // #[gen_stub(skip)]
+    const fn __traverse__(&self, _visit: PyVisit<'_>) -> Result<(), PyTraverseError> {
+        Ok(()) // This is needed purely so `__clear__` can work
+    }
+
+    // #[gen_stub(skip)]
+    fn __clear__(&mut self) {
+        // TODO: may or may not need to await a "kill-signal" oneshot channel message,
+        //       to ensure that the networking task is done BEFORE exiting the clear function...
+        //       but this may require GIL?? and it may not be safe to call GIL here??
+        self.sender = None; // Using Option<T> as a trick to force `sender` channel to be dropped
+    }
+}
+
+pub fn examples_submodule(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_class::<PyAsyncTaskHandle>()?;
+
+    Ok(())
+}
--- a/rust/exo_pyo3_bindings/src/ident.rs
+++ b/rust/exo_pyo3_bindings/src/ident.rs
@@ -1,47 +0,0 @@
-use crate::ext::ResultExt as _;
-use libp2p::identity::Keypair;
-use pyo3::types::{PyBytes, PyBytesMethods};
-use pyo3::{Bound, PyResult, Python, pyclass, pymethods};
-use pyo3_stub_gen::derive::{gen_stub_pyclass, gen_stub_pymethods};
-
-/// Identity keypair of a node.
-#[gen_stub_pyclass]
-#[pyclass(name = "Keypair", frozen)]
-#[repr(transparent)]
-pub struct PyKeypair(pub Keypair);
-
-#[gen_stub_pymethods]
-#[pymethods]
-#[allow(clippy::needless_pass_by_value)]
-impl PyKeypair {
-    /// Generate a new Ed25519 keypair.
-    #[staticmethod]
-    fn generate() -> Self {
-        Self(Keypair::generate_ed25519())
-    }
-
-    /// Construct an Ed25519 keypair from secret key bytes
-    #[staticmethod]
-    fn from_bytes(bytes: Bound<'_, PyBytes>) -> PyResult<Self> {
-        let mut bytes = Vec::from(bytes.as_bytes());
-        Ok(Self(Keypair::ed25519_from_bytes(&mut bytes).pyerr()?))
-    }
-
-    /// Get the secret key bytes underlying the keypair
-    fn to_bytes<'py>(&self, py: Python<'py>) -> PyResult<Bound<'py, PyBytes>> {
-        let bytes = self
-            .0
-            .clone()
-            .try_into_ed25519()
-            .expect("we only use ed25519 keys")
-            .secret()
-            .as_ref()
-            .to_vec();
-        Ok(PyBytes::new(py, &bytes))
-    }
-
-    /// Convert the `Keypair` into the corresponding `PeerId` string, which we use as our NodeId.
-    fn to_node_id(&self) -> String {
-        self.0.public().to_peer_id().to_base58()
-    }
-}
--- a/rust/exo_pyo3_bindings/src/lib.rs
+++ b/rust/exo_pyo3_bindings/src/lib.rs
@@ -4,14 +4,28 @@
 //!
 //!

-mod allow_threading;
-mod ident;
-mod networking;
+// enable Rust-unstable features for convenience
+#![feature(trait_alias)]
+#![feature(tuple_trait)]
+#![feature(unboxed_closures)]
+// #![feature(stmt_expr_attributes)]
+// #![feature(assert_matches)]
+// #![feature(async_fn_in_dyn_trait)]
+// #![feature(async_for_loop)]
+// #![feature(auto_traits)]
+// #![feature(negative_impls)]
+
+extern crate core;
+mod allow_threading;
+mod examples;
+pub(crate) mod networking;
+pub(crate) mod pylibp2p;

-use crate::ident::PyKeypair;
 use crate::networking::networking_submodule;
+use crate::pylibp2p::ident::ident_submodule;
+use crate::pylibp2p::multiaddr::multiaddr_submodule;
 use pyo3::prelude::PyModule;
-use pyo3::types::PyModuleMethods;
+use pyo3::prelude::*;
 use pyo3::{Bound, PyResult, pyclass, pymodule};
 use pyo3_stub_gen::define_stub_info_gatherer;

@@ -20,11 +34,24 @@ pub(crate) mod r#const {
    pub const MPSC_CHANNEL_SIZE: usize = 1024;
 }

+/// Namespace for all the type/trait aliases used by this crate.
+pub(crate) mod alias {
+    use std::error::Error;
+    use std::marker::Tuple;
+
+    pub trait SendFn<Args: Tuple + Send + 'static, Output> =
+        Fn<Args, Output = Output> + Send + 'static;
+
+    pub type AnyError = Box<dyn Error + Send + Sync + 'static>;
+    pub type AnyResult<T> = Result<T, AnyError>;
+}
+
 /// Namespace for crate-wide extension traits/methods
 pub(crate) mod ext {
    use crate::allow_threading::AllowThreads;
    use extend::ext;
    use pyo3::exceptions::{PyConnectionError, PyRuntimeError};
+    use pyo3::marker::Ungil;
    use pyo3::types::PyBytes;
    use pyo3::{Py, PyErr, PyResult, Python};
    use tokio::runtime::Runtime;
@@ -35,7 +62,7 @@ pub(crate) mod ext {
    #[ext(pub, name = ByteArrayExt)]
    impl [u8] {
        fn pybytes(&self) -> Py<PyBytes> {
-            Python::attach(|py| PyBytes::new(py, self).unbind())
+            Python::with_gil(|py| PyBytes::new(py, self).unbind())
        }
    }

@@ -71,7 +98,7 @@ pub(crate) mod ext {
    #[ext(pub, name = PyResultExt)]
    impl<T> PyResult<T> {
        fn write_unraisable(self) -> Option<T> {
-            Python::attach(|py| self.write_unraisable_with(py))
+            Python::with_gil(|py| self.write_unraisable_with(py))
        }

        fn write_unraisable_with(self, py: Python<'_>) -> Option<T> {
@@ -148,6 +175,24 @@ pub(crate) mod ext {
    }
 }

+pub(crate) mod private {
+    use std::marker::Sized;
+
+    /// Sealed traits support
+    pub trait Sealed {}
+    impl<T: ?Sized> Sealed for T {}
+}
+
+/// A wrapper around [`Py`] that implements [`Clone`] using [`Python::with_gil`].
+#[repr(transparent)]
+pub(crate) struct ClonePy<T>(pub Py<T>);
+
+impl<T> Clone for ClonePy<T> {
+    fn clone(&self) -> Self {
+        Python::with_gil(|py| Self(self.0.clone_ref(py)))
+    }
+}
+
 /// A Python module implemented in Rust. The name of this function must match
 /// the `lib.name` setting in the `Cargo.toml`, else Python will not be able to
 /// import the module.
@@ -159,7 +204,8 @@ fn main_module(m: &Bound<'_, PyModule>) -> PyResult<()> {
    // TODO: for now this is all NOT a submodule, but figure out how to make the submodule system
    //       work with maturin, where the types generate correctly, in the right folder, without
    //       too many importing issues...
-    m.add_class::<PyKeypair>()?;
+    ident_submodule(m)?;
+    multiaddr_submodule(m)?;
    networking_submodule(m)?;

    // top-level constructs
--- a/rust/exo_pyo3_bindings/src/networking.rs
+++ b/rust/exo_pyo3_bindings/src/networking.rs
@@ -1,24 +1,31 @@
+#![allow(
+    clippy::multiple_inherent_impl,
+    clippy::unnecessary_wraps,
+    clippy::unused_self,
+    clippy::needless_pass_by_value
+)]
+
 use crate::r#const::MPSC_CHANNEL_SIZE;
 use crate::ext::{ByteArrayExt as _, FutureExt, PyErrExt as _};
-use crate::ext::{ResultExt as _, TokioMpscSenderExt as _};
-use crate::ident::PyKeypair;
-use crate::networking::exception::{PyAllQueuesFullError, PyNoPeersSubscribedToTopicError};
+use crate::ext::{ResultExt as _, TokioMpscReceiverExt as _, TokioMpscSenderExt as _};
 use crate::pyclass;
-use futures_lite::StreamExt as _;
-use libp2p::gossipsub::PublishError;
-use networking::swarm::{FromSwarm, Swarm, ToSwarm, create_swarm};
-use pyo3::exceptions::PyRuntimeError;
+use crate::pylibp2p::ident::{PyKeypair, PyPeerId};
+use libp2p::futures::StreamExt as _;
+use libp2p::gossipsub::{IdentTopic, Message, MessageId, PublishError};
+use libp2p::swarm::SwarmEvent;
+use libp2p::{gossipsub, mdns};
+use networking::discovery;
+use networking::swarm::create_swarm;
 use pyo3::prelude::{PyModule, PyModuleMethods as _};
 use pyo3::types::PyBytes;
-use pyo3::{Bound, Py, PyErr, PyResult, Python, pymethods};
-use pyo3_stub_gen::derive::{
-    gen_stub_pyclass, gen_stub_pyclass_complex_enum, gen_stub_pyclass_enum, gen_stub_pymethods,
-};
+use pyo3::{Bound, Py, PyErr, PyResult, PyTraverseError, PyVisit, Python, pymethods};
+use pyo3_stub_gen::derive::{gen_stub_pyclass, gen_stub_pyclass_enum, gen_stub_pymethods};
+use std::net::IpAddr;
 use tokio::sync::{Mutex, mpsc, oneshot};

 mod exception {
    use pyo3::types::PyTuple;
-    use pyo3::{exceptions::PyException, prelude::*};
+    use pyo3::{PyErrArguments, exceptions::PyException, prelude::*};
    use pyo3_stub_gen::derive::*;

    #[gen_stub_pyclass]
@@ -112,7 +119,7 @@ struct PyConnectionUpdate {

    /// Identity of the peer that we have connected to or disconnected from.
    #[pyo3(get)]
-    peer_id: String,
+    peer_id: PyPeerId,

    /// Remote connection's IPv4 address.
    #[pyo3(get)]
@@ -123,45 +130,206 @@ struct PyConnectionUpdate {
    remote_tcp_port: u16,
 }

-#[gen_stub_pyclass]
-#[pyclass(name = "NetworkingHandle")]
-struct PyNetworkingHandle {
-    // channels
-    pub to_swarm: mpsc::Sender<ToSwarm>,
-    pub swarm: Mutex<Swarm>,
+enum ToTask {
+    GossipsubSubscribe {
+        topic: String,
+        result_tx: oneshot::Sender<PyResult<bool>>,
+    },
+    GossipsubUnsubscribe {
+        topic: String,
+        result_tx: oneshot::Sender<bool>,
+    },
+    GossipsubPublish {
+        topic: String,
+        data: Vec<u8>,
+        result_tx: oneshot::Sender<PyResult<MessageId>>,
+    },
 }

-#[gen_stub_pyclass_complex_enum]
-#[pyclass]
-enum PyFromSwarm {
-    Connection {
-        peer_id: String,
-        connected: bool,
-    },
-    Message {
-        origin: String,
-        topic: String,
-        data: Py<PyBytes>,
-    },
-}
-impl From<FromSwarm> for PyFromSwarm {
-    fn from(value: FromSwarm) -> Self {
-        match value {
-            FromSwarm::Discovered { peer_id } => Self::Connection {
-                peer_id: peer_id.to_base58(),
-                connected: true,
-            },
-            FromSwarm::Expired { peer_id } => Self::Connection {
-                peer_id: peer_id.to_base58(),
-                connected: false,
-            },
-            FromSwarm::Message { from, topic, data } => Self::Message {
-                origin: from.to_base58(),
-                topic: topic,
-                data: data.pybytes(),
-            },
+#[allow(clippy::enum_glob_use)]
+async fn networking_task(
+    mut swarm: networking::swarm::Swarm,
+    mut to_task_rx: mpsc::Receiver<ToTask>,
+    connection_update_tx: mpsc::Sender<PyConnectionUpdate>,
+    gossipsub_message_tx: mpsc::Sender<(String, Vec<u8>)>,
+) {
+    use SwarmEvent::*;
+    use ToTask::*;
+    use mdns::Event::*;
+    use networking::swarm::BehaviourEvent::*;
+
+    log::info!("RUST: networking task started");
+
+    loop {
+        tokio::select! {
+            message = to_task_rx.recv() => {
+                // handle closed channel
+                let Some(message) = message else {
+                    log::info!("RUST: channel closed");
+                    break;
+                };
+
+                // dispatch incoming messages
+                match message {
+                    GossipsubSubscribe { topic, result_tx } => {
+                        // try to subscribe
+                        let result = swarm.behaviour_mut()
+                            .gossipsub.subscribe(&IdentTopic::new(topic));
+
+                        // send response oneshot
+                        if let Err(e) = result_tx.send(result.pyerr()) {
+                            log::error!("RUST: could not subscribe to gossipsub topic since channel already closed: {e:?}");
+                            continue;
+                        }
+                    }
+                    GossipsubUnsubscribe { topic, result_tx } => {
+                        // try to unsubscribe from the topic
+                        let result = swarm.behaviour_mut()
+                            .gossipsub.unsubscribe(&IdentTopic::new(topic));
+
+                        // send response oneshot (or exit if connection closed)
+                        if let Err(e) = result_tx.send(result) {
+                            log::error!("RUST: could not unsubscribe from gossipsub topic since channel already closed: {e:?}");
+                            continue;
+                        }
+                    }
+                    GossipsubPublish { topic, data, result_tx } => {
+                        // try to publish the data -> catch NoPeersSubscribedToTopic error & convert to correct exception
+                        let result = swarm.behaviour_mut().gossipsub.publish(
+                            IdentTopic::new(topic), data);
+                        let pyresult: PyResult<MessageId> = if let Err(PublishError::NoPeersSubscribedToTopic) = result {
+                            Err(exception::PyNoPeersSubscribedToTopicError::new_err())
+                        } else if let Err(PublishError::AllQueuesFull(_)) = result {
+                            Err(exception::PyAllQueuesFullError::new_err())
+                        } else {
+                            result.pyerr()
+                        };
+
+                        // send response oneshot (or exit if connection closed)
+                        if let Err(e) = result_tx.send(pyresult) {
+                            log::error!("RUST: could not publish gossipsub message since channel already closed: {e:?}");
+                            continue;
+                        }
+                    }
+                }
+            }
+
+            // architectural solution to this problem:
+            // create keep_alive behavior who's job it is to dial peers discovered by mDNS (and drop when expired)
+            //   -> it will emmit TRUE connected/disconnected events consumable elsewhere
+            //
+            // gossipsub will feed off-of dial attempts created by networking, and that will bootstrap its' peers list
+            // then for actual communication it will dial those peers if need-be
+            swarm_event = swarm.select_next_some() => {
+                match swarm_event {
+                    Behaviour(Gossipsub(gossipsub::Event::Message {
+                        message: Message {
+                            topic,
+                            data,
+                            ..
+                        },
+                        ..
+                    })) => {
+                        // topic-ID is just the topic hash!!! (since we used identity hasher)
+                        let message = (topic.into_string(), data);
+
+                        // send incoming message to channel (or exit if connection closed)
+                        if let Err(e) = gossipsub_message_tx.send(message).await {
+                            log::error!("RUST: could not send incoming gossipsub message since channel already closed: {e}");
+                            continue;
+                        }
+                    },
+                    Behaviour(Discovery(discovery::Event::ConnectionEstablished { peer_id, remote_ip, remote_tcp_port, .. })) => {
+                        // grab IPv4 string
+                        let remote_ipv4 = match remote_ip {
+                            IpAddr::V4(ip) => ip.to_string(),
+                            IpAddr::V6(ip) => {
+                                log::warn!("RUST: ignoring connection to IPv6 address: {ip}");
+                                continue;
+                            }
+                        };
+
+                        // send connection event to channel (or exit if connection closed)
+                        if let Err(e) = connection_update_tx.send(PyConnectionUpdate {
+                            update_type: PyConnectionUpdateType::Connected,
+                            peer_id: PyPeerId(peer_id),
+                            remote_ipv4,
+                            remote_tcp_port,
+                        }).await {
+                            log::error!("RUST: could not send connection update since channel already closed: {e}");
+                            continue;
+                        }
+                    },
+                    Behaviour(Discovery(discovery::Event::ConnectionClosed { peer_id, remote_ip, remote_tcp_port, .. })) => {
+                        // grab IPv4 string
+                        let remote_ipv4 = match remote_ip {
+                            IpAddr::V4(ip) => ip.to_string(),
+                            IpAddr::V6(ip) => {
+                                log::warn!("RUST: ignoring disconnection from IPv6 address: {ip}");
+                                continue;
+                            }
+                        };
+
+                        // send disconnection event to channel (or exit if connection closed)
+                        if let Err(e) = connection_update_tx.send(PyConnectionUpdate {
+                            update_type: PyConnectionUpdateType::Disconnected,
+                            peer_id: PyPeerId(peer_id),
+                            remote_ipv4,
+                            remote_tcp_port,
+                        }).await {
+                            log::error!("RUST: could not send connection update since channel already closed: {e}");
+                            continue;
+                        }
+                    },
+                    e => {
+                        log::info!("RUST: other event {e:?}");
+                    }
+                }
+            }
        }
    }
+
+    log::info!("RUST: networking task stopped");
+}
+
+#[gen_stub_pyclass]
+#[pyclass(name = "NetworkingHandle")]
+#[derive(Debug)]
+struct PyNetworkingHandle {
+    // channels
+    to_task_tx: Option<mpsc::Sender<ToTask>>,
+    connection_update_rx: Mutex<mpsc::Receiver<PyConnectionUpdate>>,
+    gossipsub_message_rx: Mutex<mpsc::Receiver<(String, Vec<u8>)>>,
+}
+
+impl Drop for PyNetworkingHandle {
+    fn drop(&mut self) {
+        // TODO: may or may not need to await a "kill-signal" oneshot channel message,
+        //       to ensure that the networking task is done BEFORE exiting the clear function...
+        //       but this may require GIL?? and it may not be safe to call GIL here??
+        self.to_task_tx = None; // Using Option<T> as a trick to force channel to be dropped
+    }
+}
+
+#[allow(clippy::expect_used)]
+impl PyNetworkingHandle {
+    fn new(
+        to_task_tx: mpsc::Sender<ToTask>,
+        connection_update_rx: mpsc::Receiver<PyConnectionUpdate>,
+        gossipsub_message_rx: mpsc::Receiver<(String, Vec<u8>)>,
+    ) -> Self {
+        Self {
+            to_task_tx: Some(to_task_tx),
+            connection_update_rx: Mutex::new(connection_update_rx),
+            gossipsub_message_rx: Mutex::new(gossipsub_message_rx),
+        }
+    }
+
+    const fn to_task_tx(&self) -> &mpsc::Sender<ToTask> {
+        self.to_task_tx
+            .as_ref()
+            .expect("The sender should only be None after de-initialization.")
+    }
 }

 #[gen_stub_pymethods]
@@ -175,32 +343,97 @@ impl PyNetworkingHandle {

    #[new]
    fn py_new(identity: Bound<'_, PyKeypair>) -> PyResult<Self> {
+        use pyo3_async_runtimes::tokio::get_runtime;
+
        // create communication channels
-        let (to_swarm, from_client) = mpsc::channel(MPSC_CHANNEL_SIZE);
+        let (to_task_tx, to_task_rx) = mpsc::channel(MPSC_CHANNEL_SIZE);
+        let (connection_update_tx, connection_update_rx) = mpsc::channel(MPSC_CHANNEL_SIZE);
+        let (gossipsub_message_tx, gossipsub_message_rx) = mpsc::channel(MPSC_CHANNEL_SIZE);

        // get identity
        let identity = identity.borrow().0.clone();

        // create networking swarm (within tokio context!! or it crashes)
-        let swarm = { create_swarm(identity, from_client).pyerr()? };
+        let swarm = get_runtime()
+            .block_on(async { create_swarm(identity) })
+            .pyerr()?;

-        Ok(Self {
-            swarm: Mutex::new(swarm),
-            to_swarm,
-        })
+        // spawn tokio task running the networking logic
+        get_runtime().spawn(async move {
+            networking_task(
+                swarm,
+                to_task_rx,
+                connection_update_tx,
+                gossipsub_message_tx,
+            )
+            .await;
+        });
+        Ok(Self::new(
+            to_task_tx,
+            connection_update_rx,
+            gossipsub_message_rx,
+        ))
    }

-    async fn recv(&self) -> PyResult<PyFromSwarm> {
-        self.swarm
-            .try_lock()
-            .expect("tried to recv from swarm twice concurrently")
-            .next()
-            .allow_threads_py()
+    #[gen_stub(skip)]
+    const fn __traverse__(&self, _visit: PyVisit<'_>) -> Result<(), PyTraverseError> {
+        Ok(()) // This is needed purely so `__clear__` can work
+    }
+
+    #[gen_stub(skip)]
+    fn __clear__(&mut self) {
+        // TODO: may or may not need to await a "kill-signal" oneshot channel message,
+        //       to ensure that the networking task is done BEFORE exiting the clear function...
+        //       but this may require GIL?? and it may not be safe to call GIL here??
+        self.to_task_tx = None; // Using Option<T> as a trick to force channel to be dropped
+    }
+
+    // ---- Connection update receiver methods ----
+
+    /// Receives the next `ConnectionUpdate` from networking.
+    async fn connection_update_recv(&self) -> PyResult<PyConnectionUpdate> {
+        self.connection_update_rx
+            .lock()
+            .allow_threads_py() // allow-threads-aware async call
+            .await
+            .recv_py()
+            .allow_threads_py() // allow-threads-aware async call
            .await
-            .ok_or(PyErr::receiver_channel_closed())
-            .map(Into::into)
    }

+    /// Receives at most `limit` `ConnectionUpdate`s from networking and returns them.
+    ///
+    /// For `limit = 0`, an empty collection of `ConnectionUpdate`s will be returned immediately.
+    /// For `limit > 0`, if there are no `ConnectionUpdate`s in the channel's queue this method
+    /// will sleep until a `ConnectionUpdate`s is sent.
+    async fn connection_update_recv_many(&self, limit: usize) -> PyResult<Vec<PyConnectionUpdate>> {
+        self.connection_update_rx
+            .lock()
+            .allow_threads_py() // allow-threads-aware async call
+            .await
+            .recv_many_py(limit)
+            .allow_threads_py() // allow-threads-aware async call
+            .await
+    }
+
+    // TODO: rn this blocks main thread if anything else is awaiting the channel (bc its a mutex)
+    //       so its too dangerous to expose just yet. figure out a better semantics for handling this,
+    //       so things don't randomly block
+    // /// Tries to receive the next `ConnectionUpdate` from networking.
+    // fn connection_update_try_recv(&self) -> PyResult<Option<PyConnectionUpdate>> {
+    //     self.connection_update_rx.blocking_lock().try_recv_py()
+    // }
+    //
+    // /// Checks if the `ConnectionUpdate` channel is empty.
+    // fn connection_update_is_empty(&self) -> bool {
+    //     self.connection_update_rx.blocking_lock().is_empty()
+    // }
+    //
+    // /// Returns the number of `ConnectionUpdate`s in the channel.
+    // fn connection_update_len(&self) -> usize {
+    //     self.connection_update_rx.blocking_lock().len()
+    // }
+
    // ---- Gossipsub management methods ----

    /// Subscribe to a `GossipSub` topic.
@@ -210,10 +443,10 @@ impl PyNetworkingHandle {
        let (tx, rx) = oneshot::channel();

        // send off request to subscribe
-        self.to_swarm
-            .send_py(ToSwarm::Subscribe {
+        self.to_task_tx()
+            .send_py(ToTask::GossipsubSubscribe {
                topic,
-                result_sender: tx,
+                result_tx: tx,
            })
            .allow_threads_py() // allow-threads-aware async call
            .await?;
@@ -222,7 +455,6 @@ impl PyNetworkingHandle {
        rx.allow_threads_py() // allow-threads-aware async call
            .await
            .map_err(|_| PyErr::receiver_channel_closed())?
-            .pyerr()
    }

    /// Unsubscribes from a `GossipSub` topic.
@@ -232,10 +464,10 @@ impl PyNetworkingHandle {
        let (tx, rx) = oneshot::channel();

        // send off request to unsubscribe
-        self.to_swarm
-            .send_py(ToSwarm::Unsubscribe {
+        self.to_task_tx()
+            .send_py(ToTask::GossipsubUnsubscribe {
                topic,
-                result_sender: tx,
+                result_tx: tx,
            })
            .allow_threads_py() // allow-threads-aware async call
            .await?;
@@ -253,12 +485,12 @@ impl PyNetworkingHandle {
        let (tx, rx) = oneshot::channel();

        // send off request to subscribe
-        let data = Python::attach(|py| Vec::from(data.as_bytes(py)));
-        self.to_swarm
-            .send_py(ToSwarm::Publish {
+        let data = Python::with_gil(|py| Vec::from(data.as_bytes(py)));
+        self.to_task_tx()
+            .send_py(ToTask::GossipsubPublish {
                topic,
                data,
-                result_sender: tx,
+                result_tx: tx,
            })
            .allow_threads_py() // allow-threads-aware async call
            .await?;
@@ -267,14 +499,64 @@ impl PyNetworkingHandle {
        let _ = rx
            .allow_threads_py() // allow-threads-aware async call
            .await
-            .map_err(|_| PyErr::receiver_channel_closed())?
-            .map_err(|e| match e {
-                PublishError::AllQueuesFull(_) => PyAllQueuesFullError::new_err(),
-                PublishError::MessageTooLarge => PyNoPeersSubscribedToTopicError::new_err(),
-                e => PyRuntimeError::new_err(e.to_string()),
-            })?;
+            .map_err(|_| PyErr::receiver_channel_closed())??;
        Ok(())
    }
+
+    // ---- Gossipsub message receiver methods ----
+
+    /// Receives the next message from the `GossipSub` network.
+    async fn gossipsub_recv(&self) -> PyResult<(String, Py<PyBytes>)> {
+        self.gossipsub_message_rx
+            .lock()
+            .allow_threads_py() // allow-threads-aware async call
+            .await
+            .recv_py()
+            .allow_threads_py() // allow-threads-aware async call
+            .await
+            .map(|(t, d)| (t, d.pybytes()))
+    }
+
+    /// Receives at most `limit` messages from the `GossipSub` network and returns them.
+    ///
+    /// For `limit = 0`, an empty collection of messages will be returned immediately.
+    /// For `limit > 0`, if there are no messages in the channel's queue this method
+    /// will sleep until a message is sent.
+    async fn gossipsub_recv_many(&self, limit: usize) -> PyResult<Vec<(String, Py<PyBytes>)>> {
+        Ok(self
+            .gossipsub_message_rx
+            .lock()
+            .allow_threads_py() // allow-threads-aware async call
+            .await
+            .recv_many_py(limit)
+            .allow_threads_py() // allow-threads-aware async call
+            .await?
+            .into_iter()
+            .map(|(t, d)| (t, d.pybytes()))
+            .collect())
+    }
+
+    // TODO: rn this blocks main thread if anything else is awaiting the channel (bc its a mutex)
+    //       so its too dangerous to expose just yet. figure out a better semantics for handling this,
+    //       so things don't randomly block
+    // /// Tries to receive the next message from the `GossipSub` network.
+    // fn gossipsub_try_recv(&self) -> PyResult<Option<(String, Py<PyBytes>)>> {
+    //     Ok(self
+    //         .gossipsub_message_rx
+    //         .blocking_lock()
+    //         .try_recv_py()?
+    //         .map(|(t, d)| (t, d.pybytes())))
+    // }
+    //
+    // /// Checks if the `GossipSub` message channel is empty.
+    // fn gossipsub_is_empty(&self) -> bool {
+    //     self.gossipsub_message_rx.blocking_lock().is_empty()
+    // }
+    //
+    // /// Returns the number of `GossipSub` messages in the channel.
+    // fn gossipsub_len(&self) -> usize {
+    //     self.gossipsub_message_rx.blocking_lock().len()
+    // }
 }

 pub fn networking_submodule(m: &Bound<'_, PyModule>) -> PyResult<()> {
--- a/rust/exo_pyo3_bindings/src/pylibp2p/ident.rs
+++ b/rust/exo_pyo3_bindings/src/pylibp2p/ident.rs
@@ -0,0 +1,159 @@
+use crate::ext::ResultExt as _;
+use libp2p::PeerId;
+use libp2p::identity::Keypair;
+use pyo3::prelude::{PyBytesMethods as _, PyModule, PyModuleMethods as _};
+use pyo3::types::PyBytes;
+use pyo3::{Bound, PyResult, Python, pyclass, pymethods};
+use pyo3_stub_gen::derive::{gen_stub_pyclass, gen_stub_pymethods};
+
+/// Identity keypair of a node.
+#[gen_stub_pyclass]
+#[pyclass(name = "Keypair", frozen)]
+#[repr(transparent)]
+pub struct PyKeypair(pub Keypair);
+
+#[gen_stub_pymethods]
+#[pymethods]
+#[allow(clippy::needless_pass_by_value)]
+impl PyKeypair {
+    /// Generate a new Ed25519 keypair.
+    #[staticmethod]
+    fn generate_ed25519() -> Self {
+        Self(Keypair::generate_ed25519())
+    }
+
+    /// Generate a new ECDSA keypair.
+    #[staticmethod]
+    fn generate_ecdsa() -> Self {
+        Self(Keypair::generate_ecdsa())
+    }
+
+    /// Generate a new Secp256k1 keypair.
+    #[staticmethod]
+    fn generate_secp256k1() -> Self {
+        Self(Keypair::generate_secp256k1())
+    }
+
+    /// Decode a private key from a protobuf structure and parse it as a `Keypair`.
+    #[staticmethod]
+    fn from_protobuf_encoding(bytes: Bound<'_, PyBytes>) -> PyResult<Self> {
+        let bytes = Vec::from(bytes.as_bytes());
+        Ok(Self(Keypair::from_protobuf_encoding(&bytes).pyerr()?))
+    }
+
+    /// Decode an keypair from a DER-encoded secret key in PKCS#8 `PrivateKeyInfo`
+    /// format (i.e. unencrypted) as defined in [RFC5208].
+    ///
+    /// [RFC5208]: https://tools.ietf.org/html/rfc5208#section-5
+    #[staticmethod]
+    fn rsa_from_pkcs8(bytes: Bound<'_, PyBytes>) -> PyResult<Self> {
+        let mut bytes = Vec::from(bytes.as_bytes());
+        Ok(Self(Keypair::rsa_from_pkcs8(&mut bytes).pyerr()?))
+    }
+
+    /// Decode a keypair from a DER-encoded Secp256k1 secret key in an `ECPrivateKey`
+    /// structure as defined in [RFC5915].
+    ///
+    /// [RFC5915]: https://tools.ietf.org/html/rfc5915
+    #[staticmethod]
+    fn secp256k1_from_der(bytes: Bound<'_, PyBytes>) -> PyResult<Self> {
+        let mut bytes = Vec::from(bytes.as_bytes());
+        Ok(Self(Keypair::secp256k1_from_der(&mut bytes).pyerr()?))
+    }
+
+    #[staticmethod]
+    fn ed25519_from_bytes(bytes: Bound<'_, PyBytes>) -> PyResult<Self> {
+        let mut bytes = Vec::from(bytes.as_bytes());
+        Ok(Self(Keypair::ed25519_from_bytes(&mut bytes).pyerr()?))
+    }
+
+    /// Encode a private key as protobuf structure.
+    fn to_protobuf_encoding<'py>(&self, py: Python<'py>) -> PyResult<Bound<'py, PyBytes>> {
+        let bytes = self.0.to_protobuf_encoding().pyerr()?;
+        Ok(PyBytes::new(py, &bytes))
+    }
+
+    /// Convert the `Keypair` into the corresponding `PeerId`.
+    fn to_peer_id(&self) -> PyPeerId {
+        PyPeerId(self.0.public().to_peer_id())
+    }
+
+    // /// Hidden constructor for pickling support. TODO: figure out how to do pickling...
+    // #[gen_stub(skip)]
+    // #[new]
+    // fn py_new(bytes: Bound<'_, PyBytes>) -> PyResult<Self> {
+    //     Self::from_protobuf_encoding(bytes)
+    // }
+    //
+    // #[gen_stub(skip)]
+    // fn __setstate__(&mut self, state: Bound<'_, PyBytes>) -> PyResult<()> {
+    //     *self = Self::from_protobuf_encoding(state)?;
+    //     Ok(())
+    // }
+    //
+    // #[gen_stub(skip)]
+    // fn __getstate__<'py>(&self, py: Python<'py>) -> PyResult<Bound<'py, PyBytes>> {
+    //     self.to_protobuf_encoding(py)
+    // }
+    //
+    // #[gen_stub(skip)]
+    // pub fn __getnewargs__<'py>(&self, py: Python<'py>) -> PyResult<(Bound<'py, PyBytes>,)> {
+    //     Ok((self.to_protobuf_encoding(py)?,))
+    // }
+}
+
+/// Identifier of a peer of the network.
+///
+/// The data is a `CIDv0` compatible multihash of the protobuf encoded public key of the peer
+/// as specified in [specs/peer-ids](https://github.com/libp2p/specs/blob/master/peer-ids/peer-ids.md).
+#[gen_stub_pyclass]
+#[pyclass(name = "PeerId", frozen)]
+#[derive(Debug, Clone)]
+#[repr(transparent)]
+pub struct PyPeerId(pub PeerId);
+
+#[gen_stub_pymethods]
+#[pymethods]
+#[allow(clippy::needless_pass_by_value)]
+impl PyPeerId {
+    /// Generates a random peer ID from a cryptographically secure PRNG.
+    ///
+    /// This is useful for randomly walking on a DHT, or for testing purposes.
+    #[staticmethod]
+    fn random() -> Self {
+        Self(PeerId::random())
+    }
+
+    /// Parses a `PeerId` from bytes.
+    #[staticmethod]
+    fn from_bytes(bytes: Bound<'_, PyBytes>) -> PyResult<Self> {
+        let bytes = Vec::from(bytes.as_bytes());
+        Ok(Self(PeerId::from_bytes(&bytes).pyerr()?))
+    }
+
+    /// Returns a raw bytes representation of this `PeerId`.
+    fn to_bytes<'py>(&self, py: Python<'py>) -> Bound<'py, PyBytes> {
+        let bytes = self.0.to_bytes();
+        PyBytes::new(py, &bytes)
+    }
+
+    /// Returns a base-58 encoded string of this `PeerId`.
+    fn to_base58(&self) -> String {
+        self.0.to_base58()
+    }
+
+    fn __repr__(&self) -> String {
+        format!("PeerId({})", self.to_base58())
+    }
+
+    fn __str__(&self) -> String {
+        self.to_base58()
+    }
+}
+
+pub fn ident_submodule(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_class::<PyKeypair>()?;
+    m.add_class::<PyPeerId>()?;
+
+    Ok(())
+}
--- a/rust/exo_pyo3_bindings/src/pylibp2p/mod.rs
+++ b/rust/exo_pyo3_bindings/src/pylibp2p/mod.rs
@@ -0,0 +1,8 @@
+//! A module for exposing Rust's libp2p datatypes over Pyo3
+//!
+//! TODO: right now we are coupled to libp2p's identity, but eventually we want to create our own
+//!       independent identity type of some kind or another. This may require handshaking.
+//!
+
+pub mod ident;
+pub mod multiaddr;
--- a/rust/exo_pyo3_bindings/src/pylibp2p/multiaddr.rs
+++ b/rust/exo_pyo3_bindings/src/pylibp2p/multiaddr.rs
@@ -0,0 +1,81 @@
+use crate::ext::ResultExt as _;
+use libp2p::Multiaddr;
+use pyo3::prelude::{PyBytesMethods as _, PyModule, PyModuleMethods as _};
+use pyo3::types::PyBytes;
+use pyo3::{Bound, PyResult, Python, pyclass, pymethods};
+use pyo3_stub_gen::derive::{gen_stub_pyclass, gen_stub_pymethods};
+use std::str::FromStr as _;
+
+/// Representation of a Multiaddr.
+#[gen_stub_pyclass]
+#[pyclass(name = "Multiaddr", frozen)]
+#[derive(Debug, Clone)]
+#[repr(transparent)]
+pub struct PyMultiaddr(pub Multiaddr);
+
+#[gen_stub_pymethods]
+#[pymethods]
+#[allow(clippy::needless_pass_by_value)]
+impl PyMultiaddr {
+    /// Create a new, empty multiaddress.
+    #[staticmethod]
+    fn empty() -> Self {
+        Self(Multiaddr::empty())
+    }
+
+    /// Create a new, empty multiaddress with the given capacity.
+    #[staticmethod]
+    fn with_capacity(n: usize) -> Self {
+        Self(Multiaddr::with_capacity(n))
+    }
+
+    /// Parse a `Multiaddr` value from its byte slice representation.
+    #[staticmethod]
+    fn from_bytes(bytes: Bound<'_, PyBytes>) -> PyResult<Self> {
+        let bytes = Vec::from(bytes.as_bytes());
+        Ok(Self(Multiaddr::try_from(bytes).pyerr()?))
+    }
+
+    /// Parse a `Multiaddr` value from its string representation.
+    #[staticmethod]
+    fn from_string(string: String) -> PyResult<Self> {
+        Ok(Self(Multiaddr::from_str(&string).pyerr()?))
+    }
+
+    /// Return the length in bytes of this multiaddress.
+    fn len(&self) -> usize {
+        self.0.len()
+    }
+
+    /// Returns true if the length of this multiaddress is 0.
+    fn is_empty(&self) -> bool {
+        self.0.is_empty()
+    }
+
+    /// Return a copy of this [`Multiaddr`]'s byte representation.
+    fn to_bytes<'py>(&self, py: Python<'py>) -> Bound<'py, PyBytes> {
+        let bytes = self.0.to_vec();
+        PyBytes::new(py, &bytes)
+    }
+
+    /// Convert a Multiaddr to a string.
+    fn to_string(&self) -> String {
+        self.0.to_string()
+    }
+
+    #[gen_stub(skip)]
+    fn __repr__(&self) -> String {
+        format!("Multiaddr({})", self.0)
+    }
+
+    #[gen_stub(skip)]
+    fn __str__(&self) -> String {
+        self.to_string()
+    }
+}
+
+pub fn multiaddr_submodule(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_class::<PyMultiaddr>()?;
+
+    Ok(())
+}
--- a/rust/networking/Cargo.toml
+++ b/rust/networking/Cargo.toml
@@ -19,14 +19,21 @@ either = { workspace = true }
 # macro dependencies
 extend = { workspace = true }
 delegate = { workspace = true }
+impl-trait-for-tuples = { workspace = true }
+derive_more = { workspace = true }

 # async
 tokio = { workspace = true, features = ["full"] }
-futures-lite = { workspace = true }
+futures = { workspace = true }
 futures-timer = { workspace = true }

 # utility dependencies
 util = { workspace = true }
+thiserror = { workspace = true }
+#internment = { workspace = true }
+#recursion = { workspace = true }
+#generativity = { workspace = true }
+#itertools = { workspace = true }
 tracing-subscriber = { version = "0.3.19", features = ["default", "env-filter"] }
 keccak-const = { workspace = true }

@@ -34,5 +41,4 @@ keccak-const = { workspace = true }
 log = { workspace = true }

 # networking
-libp2p = { workspace = true, features = ["full"] }
-pin-project = "1.1.10"
+libp2p = { workspace = true, features = ["full"] }
--- a/rust/networking/examples/chatroom.rs
+++ b/rust/networking/examples/chatroom.rs
@@ -1,8 +1,6 @@
-use futures_lite::StreamExt;
-use libp2p::identity;
-use networking::swarm;
-use networking::swarm::{FromSwarm, ToSwarm};
-use tokio::sync::{mpsc, oneshot};
+use futures::stream::StreamExt as _;
+use libp2p::{gossipsub, identity, swarm::SwarmEvent};
+use networking::{discovery, swarm};
 use tokio::{io, io::AsyncBufReadExt as _, select};
 use tracing_subscriber::EnvFilter;
 use tracing_subscriber::filter::LevelFilter;
@@ -13,23 +11,17 @@ async fn main() {
        .with_env_filter(EnvFilter::from_default_env().add_directive(LevelFilter::INFO.into()))
        .try_init();

-    let (to_swarm, from_client) = mpsc::channel(20);
-
    // Configure swarm
-    let mut swarm = swarm::create_swarm(identity::Keypair::generate_ed25519(), from_client)
-        .expect("Swarm creation failed");
+    let mut swarm =
+        swarm::create_swarm(identity::Keypair::generate_ed25519()).expect("Swarm creation failed");

    // Create a Gossipsub topic & subscribe
-    let (tx, rx) = oneshot::channel();
-    _ = to_swarm
-        .send(ToSwarm::Subscribe {
-            topic: "test-net".to_string(),
-            result_sender: tx,
-        })
-        .await
-        .expect("should send");
-
-    let mut fused = futures_lite::future::fuse(rx);
+    let topic = gossipsub::IdentTopic::new("test-net");
+    swarm
+        .behaviour_mut()
+        .gossipsub
+        .subscribe(&topic)
+        .expect("Subscribing to topic failed");

    // Read full lines from stdin
    let mut stdin = io::BufReader::new(io::stdin()).lines();
@@ -40,23 +32,43 @@ async fn main() {
        select! {
            // on gossipsub outgoing
            Ok(Some(line)) = stdin.next_line() => {
-                let (tx, rx) = oneshot::channel();
-                if let Err(e) = to_swarm.send(swarm::ToSwarm::Publish { topic: "test-net".to_string(), data: line.as_bytes().to_vec(), result_sender: tx }).await {
-                    println!("Send error: {e:?}");
-                    return
-                };
-                if let Err(e) = rx.await {
+                if let Err(e) = swarm
+                    .behaviour_mut().gossipsub
+                    .publish(topic.clone(), line.as_bytes()) {
                    println!("Publish error: {e:?}");
                }
-            },
-            event = swarm.next() => match event {
+            }
+            event = swarm.select_next_some() => match event {
                // on gossipsub incoming
-                Some(FromSwarm::Discovered { peer_id }) => { println!("\n\nconnected to {peer_id}\n\n") },
-                Some(FromSwarm::Expired { peer_id }) => { println!("\n\ndisconnected from {peer_id}\n\n") },
-                Some(FromSwarm::Message { from, topic, data }) => { println!("{topic}/{from}:\n{}", String::from_utf8_lossy(&data)) },
-                None => {},
-            },
-            f = &mut fused => {assert!(f.expect("should recv").expect("should subscribe"))},
+                SwarmEvent::Behaviour(swarm::BehaviourEvent::Gossipsub(gossipsub::Event::Message {
+                    propagation_source: peer_id,
+                    message_id: id,
+                    message,
+                })) => println!(
+                        "\n\nGot message: '{}' with id: {id} from peer: {peer_id}\n\n",
+                        String::from_utf8_lossy(&message.data),
+                    ),
+
+                // on discovery
+                SwarmEvent::Behaviour(swarm::BehaviourEvent::Discovery(e)) => match e {
+                    discovery::Event::ConnectionEstablished {
+                        peer_id, connection_id, remote_ip, remote_tcp_port
+                    } => {
+                        println!("\n\nConnected to: {peer_id}; connection ID: {connection_id}; remote IP: {remote_ip}; remote TCP port: {remote_tcp_port}\n\n");
+                    }
+                    discovery::Event::ConnectionClosed {
+                        peer_id, connection_id, remote_ip, remote_tcp_port
+                    } => {
+                        eprintln!("\n\nDisconnected from: {peer_id}; connection ID: {connection_id}; remote IP: {remote_ip}; remote TCP port: {remote_tcp_port}\n\n");
+                    }
+                }
+
+                // ignore outgoing errors: those are normal
+                e@SwarmEvent::OutgoingConnectionError { .. } => { log::debug!("Outgoing connection error: {e:?}"); }
+
+                // otherwise log any other event
+                e => { log::info!("Other event {e:?}"); }
+            }
        }
    }
 }
--- a/rust/networking/examples/chatroom_manual.rs
+++ b/rust/networking/examples/chatroom_manual.rs
@@ -0,0 +1,127 @@
+// Copyright 2018 Parity Technologies (UK) Ltd.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+use futures::stream::StreamExt;
+use libp2p::{
+    gossipsub, mdns, noise,
+    swarm::{NetworkBehaviour, SwarmEvent},
+    tcp, yamux,
+};
+use std::time::Duration;
+use std::{error::Error, hash::Hash};
+use tokio::{io, io::AsyncBufReadExt, select};
+use tracing_subscriber::EnvFilter;
+
+// We create a custom network behaviour that combines Gossipsub and Mdns.
+#[derive(NetworkBehaviour)]
+struct MyBehaviour {
+    gossipsub: gossipsub::Behaviour,
+    mdns: mdns::tokio::Behaviour,
+}
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn Error>> {
+    let _ = tracing_subscriber::fmt()
+        .with_env_filter(EnvFilter::from_default_env())
+        .try_init();
+
+    let mut swarm = libp2p::SwarmBuilder::with_new_identity()
+        .with_tokio()
+        .with_tcp(
+            tcp::Config::default(),
+            noise::Config::new,
+            yamux::Config::default,
+        )?
+        .with_behaviour(|key| {
+            // Set a custom gossipsub configuration
+            let gossipsub_config = gossipsub::ConfigBuilder::default()
+                .heartbeat_interval(Duration::from_secs(10))
+                .validation_mode(gossipsub::ValidationMode::Strict) // This sets the kind of message validation. The default is Strict (enforce message signing)
+                .build()
+                .map_err(io::Error::other)?; // Temporary hack because `build` does not return a proper `std::error::Error`.
+
+            // build a gossipsub network behaviour
+            let gossipsub = gossipsub::Behaviour::new(
+                gossipsub::MessageAuthenticity::Signed(key.clone()),
+                gossipsub_config,
+            )?;
+
+            let mdns =
+                mdns::tokio::Behaviour::new(mdns::Config::default(), key.public().to_peer_id())?;
+            Ok(MyBehaviour { gossipsub, mdns })
+        })?
+        .build();
+
+    println!("Running swarm with identity {}", swarm.local_peer_id());
+
+    // Create a Gossipsub topic
+    let topic = gossipsub::IdentTopic::new("test-net");
+    // subscribes to our topic
+    swarm.behaviour_mut().gossipsub.subscribe(&topic)?;
+
+    // Read full lines from stdin
+    let mut stdin = io::BufReader::new(io::stdin()).lines();
+
+    // Listen on all interfaces and whatever port the OS assigns
+    swarm.listen_on("/ip4/0.0.0.0/tcp/0".parse()?)?;
+
+    println!("Enter messages via STDIN and they will be sent to connected peers using Gossipsub");
+
+    // Kick it off
+    loop {
+        select! {
+            Ok(Some(line)) = stdin.next_line() => {
+                if let Err(e) = swarm
+                    .behaviour_mut().gossipsub
+                    .publish(topic.clone(), line.as_bytes()) {
+                    println!("Publish error: {e:?}");
+                }
+            }
+            event = swarm.select_next_some() => match event {
+                SwarmEvent::Behaviour(MyBehaviourEvent::Mdns(mdns::Event::Discovered(list))) => {
+                    for (peer_id, multiaddr) in list {
+                        println!("mDNS discovered a new peer: {peer_id} on {multiaddr}");
+                        swarm.behaviour_mut().gossipsub.add_explicit_peer(&peer_id);
+                    }
+                },
+                SwarmEvent::Behaviour(MyBehaviourEvent::Mdns(mdns::Event::Expired(list))) => {
+                    for (peer_id, multiaddr) in list {
+                        println!("mDNS discover peer has expired: {peer_id} on {multiaddr}");
+                        swarm.behaviour_mut().gossipsub.remove_explicit_peer(&peer_id);
+                    }
+                },
+                SwarmEvent::Behaviour(MyBehaviourEvent::Gossipsub(gossipsub::Event::Message {
+                    propagation_source: peer_id,
+                    message_id: id,
+                    message,
+                })) => println!(
+                        "Got message: '{}' with id: {id} from peer: {peer_id}",
+                        String::from_utf8_lossy(&message.data),
+                    ),
+                SwarmEvent::NewListenAddr { address, .. } => {
+                    println!("Local node is listening on {address}");
+                }
+                e => {
+                    println!("Other swarm event: {:?}", e);
+                }
+            }
+        }
+    }
+}
--- a/rust/networking/src/discovery.rs
+++ b/rust/networking/src/discovery.rs
@@ -1,7 +1,8 @@
 use crate::ext::MultiaddrExt;
+use crate::keep_alive;
 use delegate::delegate;
 use either::Either;
-use futures_lite::FutureExt;
+use futures::FutureExt;
 use futures_timer::Delay;
 use libp2p::core::transport::PortUse;
 use libp2p::core::{ConnectedPoint, Endpoint};
@@ -362,7 +363,7 @@ impl NetworkBehaviour for Behaviour {
        }

        // retry connecting to all mDNS peers periodically (fails safely if already connected)
-        if self.retry_delay.poll(cx).is_ready() {
+        if self.retry_delay.poll_unpin(cx).is_ready() {
            for (p, mas) in self.mdns_discovered.clone() {
                for ma in mas {
                    self.dial(p, ma)
--- a/rust/networking/src/keep_alive.rs
+++ b/rust/networking/src/keep_alive.rs
@@ -0,0 +1,44 @@
+use delegate::delegate;
+use libp2p::swarm::handler::ConnectionEvent;
+use libp2p::swarm::{ConnectionHandlerEvent, SubstreamProtocol, dummy, handler};
+use std::task::{Context, Poll};
+
+/// An implementation of [`ConnectionHandler`] that doesn't handle any protocols, but it keeps
+/// the connection alive.
+#[derive(Clone)]
+#[repr(transparent)]
+pub struct ConnectionHandler(dummy::ConnectionHandler);
+
+impl ConnectionHandler {
+    pub fn new() -> Self {
+        ConnectionHandler(dummy::ConnectionHandler)
+    }
+}
+
+impl handler::ConnectionHandler for ConnectionHandler {
+    // delegate types and implementation mostly to dummy handler
+    type FromBehaviour = <dummy::ConnectionHandler as handler::ConnectionHandler>::FromBehaviour;
+    type ToBehaviour = <dummy::ConnectionHandler as handler::ConnectionHandler>::ToBehaviour;
+    type InboundProtocol =
+        <dummy::ConnectionHandler as handler::ConnectionHandler>::InboundProtocol;
+    type OutboundProtocol =
+        <dummy::ConnectionHandler as handler::ConnectionHandler>::OutboundProtocol;
+    type InboundOpenInfo =
+        <dummy::ConnectionHandler as handler::ConnectionHandler>::InboundOpenInfo;
+    type OutboundOpenInfo =
+        <dummy::ConnectionHandler as handler::ConnectionHandler>::OutboundOpenInfo;
+
+    delegate! {
+        to self.0 {
+            fn listen_protocol(&self) -> SubstreamProtocol<Self::InboundProtocol, Self::InboundOpenInfo>;
+            fn poll(&mut self, cx: &mut Context<'_>) -> Poll<ConnectionHandlerEvent<Self::OutboundProtocol, Self::OutboundOpenInfo, Self::ToBehaviour>>;
+            fn on_behaviour_event(&mut self, event: Self::FromBehaviour);
+            fn on_connection_event(&mut self, event: ConnectionEvent<Self::InboundProtocol, Self::OutboundProtocol, Self::InboundOpenInfo, Self::OutboundOpenInfo>);
+        }
+    }
+
+    // specifically override this to force connection to stay alive
+    fn connection_keep_alive(&self) -> bool {
+        true
+    }
+}
--- a/rust/networking/src/lib.rs
+++ b/rust/networking/src/lib.rs
@@ -3,7 +3,19 @@
 //! this is here as a placeholder documentation
 //!
 //!
+
+// enable Rust-unstable features for convenience
+#![feature(trait_alias)]
+// #![feature(stmt_expr_attributes)]
+// #![feature(unboxed_closures)]
+// #![feature(assert_matches)]
+// #![feature(async_fn_in_dyn_trait)]
+// #![feature(async_for_loop)]
+// #![feature(auto_traits)]
+// #![feature(negative_impls)]
+
 pub mod discovery;
+pub mod keep_alive;
 pub mod swarm;

 /// Namespace for all the type/trait aliases used by this crate.
@@ -42,3 +54,11 @@ pub(crate) mod ext {
        }
    }
 }
+
+pub(crate) mod private {
+    #![allow(dead_code)]
+
+    /// Sealed traits support
+    pub trait Sealed {}
+    impl<T: ?Sized> Sealed for T {}
+}
--- a/rust/networking/src/swarm.rs
+++ b/rust/networking/src/swarm.rs
@@ -1,11 +1,9 @@
-use std::task::Poll;
-
+use crate::alias;
 use crate::swarm::transport::tcp_transport;
-use crate::{alias, discovery};
 pub use behaviour::{Behaviour, BehaviourEvent};
-use futures_lite::Stream;
-use libp2p::{PeerId, SwarmBuilder, gossipsub, identity, swarm::SwarmEvent};
-use tokio::sync::{mpsc, oneshot};
+use libp2p::{SwarmBuilder, identity};
+
+pub type Swarm = libp2p::Swarm<Behaviour>;

 /// The current version of the network: this prevents devices running different versions of the
 /// software from interacting with each other.
@@ -17,133 +15,8 @@ use tokio::sync::{mpsc, oneshot};
 pub const NETWORK_VERSION: &[u8] = b"v0.0.1";
 pub const OVERRIDE_VERSION_ENV_VAR: &str = "EXO_LIBP2P_NAMESPACE";

-pub enum ToSwarm {
-    Unsubscribe {
-        topic: String,
-        result_sender: oneshot::Sender<bool>,
-    },
-    Subscribe {
-        topic: String,
-        result_sender: oneshot::Sender<Result<bool, gossipsub::SubscriptionError>>,
-    },
-    Publish {
-        topic: String,
-        data: Vec<u8>,
-        result_sender: oneshot::Sender<Result<gossipsub::MessageId, gossipsub::PublishError>>,
-    },
-}
-pub enum FromSwarm {
-    Message {
-        from: PeerId,
-        topic: String,
-        data: Vec<u8>,
-    },
-    Discovered {
-        peer_id: PeerId,
-    },
-    Expired {
-        peer_id: PeerId,
-    },
-}
-#[pin_project::pin_project]
-pub struct Swarm {
-    #[pin]
-    inner: libp2p::Swarm<Behaviour>,
-    from_client: mpsc::Receiver<ToSwarm>,
-}
-impl Swarm {
-    fn on_message(&mut self, message: ToSwarm) {
-        match message {
-            ToSwarm::Subscribe {
-                topic,
-                result_sender,
-            } => {
-                // try to subscribe
-                let result = self
-                    .inner
-                    .behaviour_mut()
-                    .gossipsub
-                    .subscribe(&gossipsub::IdentTopic::new(topic));
-
-                // send response oneshot
-                _ = result_sender.send(result)
-            }
-            ToSwarm::Unsubscribe {
-                topic,
-                result_sender,
-            } => {
-                // try to unsubscribe from the topic
-                let result = self
-                    .inner
-                    .behaviour_mut()
-                    .gossipsub
-                    .unsubscribe(&gossipsub::IdentTopic::new(topic));
-
-                // send response oneshot (or exit if connection closed)
-                _ = result_sender.send(result)
-            }
-            ToSwarm::Publish {
-                topic,
-                data,
-                result_sender,
-            } => {
-                // try to publish the data -> catch NoPeersSubscribedToTopic error & convert to correct exception
-                let result = self
-                    .inner
-                    .behaviour_mut()
-                    .gossipsub
-                    .publish(gossipsub::IdentTopic::new(topic), data);
-                // send response oneshot (or exit if connection closed)
-                _ = result_sender.send(result)
-            }
-        }
-    }
-}
-impl Stream for Swarm {
-    type Item = FromSwarm;
-    fn poll_next(
-        mut self: std::pin::Pin<&mut Self>,
-        cx: &mut std::task::Context<'_>,
-    ) -> Poll<Option<Self::Item>> {
-        match self.from_client.poll_recv(cx) {
-            Poll::Ready(Some(msg)) => self.on_message(msg),
-            Poll::Ready(None) => return Poll::Ready(None),
-            Poll::Pending => {}
-        }
-        match self.project().inner.poll_next(cx) {
-            Poll::Pending => Poll::Pending,
-            Poll::Ready(None) => Poll::Ready(None),
-            Poll::Ready(Some(swarm_event)) => match swarm_event {
-                SwarmEvent::Behaviour(BehaviourEvent::Gossipsub(gossipsub::Event::Message {
-                    message:
-                        gossipsub::Message {
-                            source: Some(peer_id),
-                            topic,
-                            data,
-                            ..
-                        },
-                    ..
-                })) => Poll::Ready(Some(FromSwarm::Message {
-                    from: peer_id,
-                    topic: topic.into_string(),
-                    data,
-                })),
-                SwarmEvent::Behaviour(BehaviourEvent::Discovery(
-                    discovery::Event::ConnectionEstablished { peer_id, .. },
-                )) => Poll::Ready(Some(FromSwarm::Discovered { peer_id })),
-                SwarmEvent::Behaviour(BehaviourEvent::Discovery(
-                    discovery::Event::ConnectionClosed { peer_id, .. },
-                )) => Poll::Ready(Some(FromSwarm::Expired { peer_id })),
-                _ => Poll::Pending,
-            },
-        }
-    }
-}
 /// Create and configure a swarm which listens to all ports on OS
-pub fn create_swarm(
-    keypair: identity::Keypair,
-    from_client: mpsc::Receiver<ToSwarm>,
-) -> alias::AnyResult<Swarm> {
+pub fn create_swarm(keypair: identity::Keypair) -> alias::AnyResult<Swarm> {
    let mut swarm = SwarmBuilder::with_existing_identity(keypair)
        .with_tokio()
        .with_other_transport(tcp_transport)?
@@ -152,16 +25,13 @@ pub fn create_swarm(

    // Listen on all interfaces and whatever port the OS assigns
    swarm.listen_on("/ip4/0.0.0.0/tcp/0".parse()?)?;
-    Ok(Swarm {
-        inner: swarm,
-        from_client,
-    })
+    Ok(swarm)
 }

 mod transport {
    use crate::alias;
    use crate::swarm::{NETWORK_VERSION, OVERRIDE_VERSION_ENV_VAR};
-    use futures_lite::{AsyncRead, AsyncWrite};
+    use futures::{AsyncRead, AsyncWrite};
    use keccak_const::Sha3_256;
    use libp2p::core::muxing;
    use libp2p::core::transport::Boxed;
--- a/rust/parts.nix
+++ b/rust/parts.nix
@@ -1,10 +1,11 @@
 { inputs, ... }:
 {
  perSystem =
-    { inputs', pkgs, lib, ... }:
+    { config, self', inputs', pkgs, lib, ... }:
    let
      # Fenix nightly toolchain with all components
-      rustToolchain = inputs'.fenix.packages.stable.withComponents [
+      fenixPkgs = inputs'.fenix.packages;
+      rustToolchain = fenixPkgs.complete.withComponents [
        "cargo"
        "rustc"
        "clippy"
--- a/rust/rust-toolchain.toml
+++ b/rust/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "nightly"
--- a/src/exo/download/coordinator.py
+++ b/src/exo/download/coordinator.py
@@ -47,7 +47,6 @@ class DownloadCoordinator:
    download_command_receiver: Receiver[ForwarderDownloadCommand]
    local_event_sender: Sender[ForwarderEvent]
    event_index_counter: Iterator[int]
-    offline: bool = False

    # Local state
    download_status: dict[ModelId, DownloadProgress] = field(default_factory=dict)
@@ -63,8 +62,6 @@ class DownloadCoordinator:

    def __post_init__(self) -> None:
        self.event_sender, self.event_receiver = channel[Event]()
-        if self.offline:
-            self.shard_downloader.set_internet_connection(False)
        self.shard_downloader.on_progress(self._download_progress_callback)

    def _model_dir(self, model_id: ModelId) -> str:
@@ -110,17 +107,13 @@ class DownloadCoordinator:
            self._last_progress_time[model_id] = current_time()

    async def run(self) -> None:
-        logger.info(
-            f"Starting DownloadCoordinator{' (offline mode)' if self.offline else ''}"
-        )
-        if not self.offline:
-            self._test_internet_connection()
+        logger.info("Starting DownloadCoordinator")
+        self._test_internet_connection()
        async with self._tg as tg:
            tg.start_soon(self._command_processor)
            tg.start_soon(self._forward_events)
            tg.start_soon(self._emit_existing_download_progress)
-            if not self.offline:
-                tg.start_soon(self._check_internet_connection)
+            tg.start_soon(self._check_internet_connection)

    def _test_internet_connection(self) -> None:
        try:
@@ -209,20 +202,6 @@ class DownloadCoordinator:
            )
            return

-        if self.offline:
-            logger.warning(
-                f"Offline mode: model {model_id} is not fully available locally, cannot download"
-            )
-            failed = DownloadFailed(
-                shard_metadata=shard,
-                node_id=self.node_id,
-                error_message=f"Model files not found locally in offline mode: {model_id}",
-                model_directory=self._model_dir(model_id),
-            )
-            self.download_status[model_id] = failed
-            await self.event_sender.send(NodeDownloadProgress(download_progress=failed))
-            return
-
        # Start actual download
        self._start_download_task(shard, initial_progress)

--- a/src/exo/download/download_utils.py
+++ b/src/exo/download/download_utils.py
@@ -448,13 +448,12 @@ async def download_file_with_retry(
    target_dir: Path,
    on_progress: Callable[[int, int, bool], None] = lambda _, __, ___: None,
    on_connection_lost: Callable[[], None] = lambda: None,
-    skip_internet: bool = False,
 ) -> Path:
    n_attempts = 3
    for attempt in range(n_attempts):
        try:
            return await _download_file(
-                model_id, revision, path, target_dir, on_progress, skip_internet
+                model_id, revision, path, target_dir, on_progress
            )
        except HuggingFaceAuthenticationError:
            raise
@@ -488,14 +487,10 @@ async def _download_file(
    path: str,
    target_dir: Path,
    on_progress: Callable[[int, int, bool], None] = lambda _, __, ___: None,
-    skip_internet: bool = False,
 ) -> Path:
    target_path = target_dir / path

    if await aios.path.exists(target_path):
-        if skip_internet:
-            return target_path
-
        local_size = (await aios.stat(target_path)).st_size

        # Try to verify against remote, but allow offline operation
@@ -515,11 +510,6 @@ async def _download_file(
            )
            return target_path

-    if skip_internet:
-        raise FileNotFoundError(
-            f"File {path} not found locally and cannot download in offline mode"
-        )
-
    await aios.makedirs((target_dir / path).parent, exist_ok=True)
    length, etag = await file_meta(model_id, revision, path)
    remote_hash = etag[:-5] if etag.endswith("-gzip") else etag
@@ -824,7 +814,6 @@ async def download_shard(
                    file, curr_bytes, total_bytes, is_renamed
                ),
                on_connection_lost=on_connection_lost,
-                skip_internet=skip_internet,
            )

    if not skip_download:
--- a/src/exo/download/tests/test_offline_mode.py
+++ b/src/exo/download/tests/test_offline_mode.py
@@ -1,230 +0,0 @@
-"""Tests for offline/air-gapped mode."""
-
-from collections.abc import AsyncIterator
-from pathlib import Path
-from unittest.mock import AsyncMock, patch
-
-import aiofiles
-import aiofiles.os as aios
-import pytest
-
-from exo.download.download_utils import (
-    _download_file,  # pyright: ignore[reportPrivateUsage]
-    download_file_with_retry,
-    fetch_file_list_with_cache,
-)
-from exo.shared.types.common import ModelId
-from exo.shared.types.worker.downloads import FileListEntry
-
-
-@pytest.fixture
-def model_id() -> ModelId:
-    return ModelId("test-org/test-model")
-
-
-@pytest.fixture
-async def temp_models_dir(tmp_path: Path) -> AsyncIterator[Path]:
-    models_dir = tmp_path / "models"
-    await aios.makedirs(models_dir, exist_ok=True)
-    with patch("exo.download.download_utils.EXO_MODELS_DIR", models_dir):
-        yield models_dir
-
-
-class TestDownloadFileOffline:
-    """Tests for _download_file with skip_internet=True."""
-
-    async def test_returns_local_file_without_http_verification(
-        self, model_id: ModelId, tmp_path: Path
-    ) -> None:
-        """When skip_internet=True and file exists locally, return it immediately
-        without making any HTTP calls (no file_meta verification)."""
-        target_dir = tmp_path / "downloads"
-        await aios.makedirs(target_dir, exist_ok=True)
-
-        local_file = target_dir / "model.safetensors"
-        async with aiofiles.open(local_file, "wb") as f:
-            await f.write(b"model weights data")
-
-        with patch(
-            "exo.download.download_utils.file_meta",
-            new_callable=AsyncMock,
-        ) as mock_file_meta:
-            result = await _download_file(
-                model_id,
-                "main",
-                "model.safetensors",
-                target_dir,
-                skip_internet=True,
-            )
-
-            assert result == local_file
-            mock_file_meta.assert_not_called()
-
-    async def test_raises_file_not_found_for_missing_file(
-        self, model_id: ModelId, tmp_path: Path
-    ) -> None:
-        """When skip_internet=True and file does NOT exist locally,
-        raise FileNotFoundError instead of attempting download."""
-        target_dir = tmp_path / "downloads"
-        await aios.makedirs(target_dir, exist_ok=True)
-
-        with pytest.raises(FileNotFoundError, match="offline mode"):
-            await _download_file(
-                model_id,
-                "main",
-                "missing_model.safetensors",
-                target_dir,
-                skip_internet=True,
-            )
-
-    async def test_returns_local_file_in_subdirectory(
-        self, model_id: ModelId, tmp_path: Path
-    ) -> None:
-        """When skip_internet=True and file exists in a subdirectory,
-        return it without HTTP calls."""
-        target_dir = tmp_path / "downloads"
-        subdir = target_dir / "transformer"
-        await aios.makedirs(subdir, exist_ok=True)
-
-        local_file = subdir / "diffusion_pytorch_model.safetensors"
-        async with aiofiles.open(local_file, "wb") as f:
-            await f.write(b"weights")
-
-        with patch(
-            "exo.download.download_utils.file_meta",
-            new_callable=AsyncMock,
-        ) as mock_file_meta:
-            result = await _download_file(
-                model_id,
-                "main",
-                "transformer/diffusion_pytorch_model.safetensors",
-                target_dir,
-                skip_internet=True,
-            )
-
-            assert result == local_file
-            mock_file_meta.assert_not_called()
-
-
-class TestDownloadFileWithRetryOffline:
-    """Tests for download_file_with_retry with skip_internet=True."""
-
-    async def test_propagates_skip_internet_to_download_file(
-        self, model_id: ModelId, tmp_path: Path
-    ) -> None:
-        """Verify skip_internet is passed through to _download_file."""
-        target_dir = tmp_path / "downloads"
-        await aios.makedirs(target_dir, exist_ok=True)
-
-        local_file = target_dir / "config.json"
-        async with aiofiles.open(local_file, "wb") as f:
-            await f.write(b'{"model_type": "qwen2"}')
-
-        with patch(
-            "exo.download.download_utils.file_meta",
-            new_callable=AsyncMock,
-        ) as mock_file_meta:
-            result = await download_file_with_retry(
-                model_id,
-                "main",
-                "config.json",
-                target_dir,
-                skip_internet=True,
-            )
-
-            assert result == local_file
-            mock_file_meta.assert_not_called()
-
-    async def test_file_not_found_does_not_retry(
-        self, model_id: ModelId, tmp_path: Path
-    ) -> None:
-        """FileNotFoundError from offline mode should not trigger retries."""
-        target_dir = tmp_path / "downloads"
-        await aios.makedirs(target_dir, exist_ok=True)
-
-        with pytest.raises(FileNotFoundError):
-            await download_file_with_retry(
-                model_id,
-                "main",
-                "nonexistent.safetensors",
-                target_dir,
-                skip_internet=True,
-            )
-
-
-class TestFetchFileListOffline:
-    """Tests for fetch_file_list_with_cache with skip_internet=True."""
-
-    async def test_uses_cached_file_list(
-        self, model_id: ModelId, temp_models_dir: Path
-    ) -> None:
-        """When skip_internet=True and cache file exists, use it without network."""
-        from pydantic import TypeAdapter
-
-        cache_dir = temp_models_dir / "caches" / model_id.normalize()
-        await aios.makedirs(cache_dir, exist_ok=True)
-
-        cached_list = [
-            FileListEntry(type="file", path="model.safetensors", size=1000),
-            FileListEntry(type="file", path="config.json", size=200),
-        ]
-        cache_file = cache_dir / f"{model_id.normalize()}--main--file_list.json"
-        async with aiofiles.open(cache_file, "w") as f:
-            await f.write(
-                TypeAdapter(list[FileListEntry]).dump_json(cached_list).decode()
-            )
-
-        with patch(
-            "exo.download.download_utils.fetch_file_list_with_retry",
-            new_callable=AsyncMock,
-        ) as mock_fetch:
-            result = await fetch_file_list_with_cache(
-                model_id, "main", skip_internet=True
-            )
-
-            assert result == cached_list
-            mock_fetch.assert_not_called()
-
-    async def test_falls_back_to_local_directory_scan(
-        self, model_id: ModelId, temp_models_dir: Path
-    ) -> None:
-        """When skip_internet=True and no cache but local files exist,
-        build file list from local directory."""
-        import json
-
-        model_dir = temp_models_dir / model_id.normalize()
-        await aios.makedirs(model_dir, exist_ok=True)
-
-        async with aiofiles.open(model_dir / "config.json", "w") as f:
-            await f.write('{"model_type": "qwen2"}')
-
-        index_data = {
-            "metadata": {},
-            "weight_map": {"model.layers.0.weight": "model.safetensors"},
-        }
-        async with aiofiles.open(model_dir / "model.safetensors.index.json", "w") as f:
-            await f.write(json.dumps(index_data))
-
-        async with aiofiles.open(model_dir / "model.safetensors", "wb") as f:
-            await f.write(b"x" * 500)
-
-        with patch(
-            "exo.download.download_utils.fetch_file_list_with_retry",
-            new_callable=AsyncMock,
-        ) as mock_fetch:
-            result = await fetch_file_list_with_cache(
-                model_id, "main", skip_internet=True
-            )
-
-            mock_fetch.assert_not_called()
-            paths = {entry.path for entry in result}
-            assert "config.json" in paths
-            assert "model.safetensors" in paths
-
-    async def test_raises_when_no_cache_and_no_local_files(
-        self, model_id: ModelId, temp_models_dir: Path
-    ) -> None:
-        """When skip_internet=True and neither cache nor local files exist,
-        raise FileNotFoundError."""
-        with pytest.raises(FileNotFoundError, match="No internet"):
-            await fetch_file_list_with_cache(model_id, "main", skip_internet=True)
--- a/src/exo/main.py
+++ b/src/exo/main.py
@@ -39,13 +39,12 @@ class Node:

    node_id: NodeId
    event_index_counter: Iterator[int]
-    offline: bool
    _tg: TaskGroup = field(init=False, default_factory=anyio.create_task_group)

    @classmethod
    async def create(cls, args: "Args") -> "Self":
        keypair = get_node_id_keypair()
-        node_id = NodeId(keypair.to_node_id())
+        node_id = NodeId(keypair.to_peer_id().to_base58())
        session_id = SessionId(master_node_id=node_id, election_clock=0)
        router = Router.create(keypair)
        await router.register_topic(topics.GLOBAL_EVENTS)
@@ -69,7 +68,6 @@ class Node:
                download_command_receiver=router.receiver(topics.DOWNLOAD_COMMANDS),
                local_event_sender=router.sender(topics.LOCAL_EVENTS),
                event_index_counter=event_index_counter,
-                offline=args.offline,
            )
        else:
            download_coordinator = None
@@ -134,7 +132,6 @@ class Node:
            api,
            node_id,
            event_index_counter,
-            args.offline,
        )

    async def run(self):
@@ -225,7 +222,6 @@ class Node:
                            ),
                            local_event_sender=self.router.sender(topics.LOCAL_EVENTS),
                            event_index_counter=self.event_index_counter,
-                            offline=self.offline,
                        )
                        self._tg.start_soon(self.download_coordinator.run)
                    if self.worker:
@@ -264,9 +260,6 @@ def main():
    logger.info("Starting EXO")
    logger.info(f"EXO_LIBP2P_NAMESPACE: {os.getenv('EXO_LIBP2P_NAMESPACE')}")

-    if args.offline:
-        logger.info("Running in OFFLINE mode — no internet checks, local models only")
-
    # Set FAST_SYNCH override env var for runner subprocesses
    if args.fast_synch is True:
        os.environ["EXO_FAST_SYNCH"] = "on"
@@ -289,7 +282,6 @@ class Args(CamelCaseModel):
    tb_only: bool = False
    no_worker: bool = False
    no_downloads: bool = False
-    offline: bool = False
    fast_synch: bool | None = None  # None = auto, True = force on, False = force off

    @classmethod
@@ -337,11 +329,6 @@ class Args(CamelCaseModel):
            action="store_true",
            help="Disable the download coordinator (node won't download models)",
        )
-        parser.add_argument(
-            "--offline",
-            action="store_true",
-            help="Run in offline/air-gapped mode: skip internet checks, use only pre-staged local models",
-        )
        fast_synch_group = parser.add_mutually_exclusive_group()
        fast_synch_group.add_argument(
            "--fast-synch",
--- a/src/exo/master/api.py
+++ b/src/exo/master/api.py
@@ -85,7 +85,6 @@ from exo.shared.types.api import (
    ImageGenerationTaskParams,
    ImageListItem,
    ImageListResponse,
-    ImageSize,
    ModelList,
    ModelListModel,
    PlaceInstanceParams,
@@ -101,7 +100,6 @@ from exo.shared.types.api import (
    TraceRankStats,
    TraceResponse,
    TraceStatsResponse,
-    normalize_image_size,
 )
 from exo.shared.types.chunks import (
    ErrorChunk,
@@ -753,11 +751,9 @@ class API:
        When stream=True and partial_images > 0, returns a StreamingResponse
        with SSE-formatted events for partial and final images.
        """
+        payload.model = await self._validate_image_model(ModelId(payload.model))
        payload = payload.model_copy(
-            update={
-                "model": await self._validate_image_model(ModelId(payload.model)),
-                "advanced_params": _ensure_seed(payload.advanced_params),
-            }
+            update={"advanced_params": _ensure_seed(payload.advanced_params)}
        )

        command = ImageGeneration(
@@ -1013,13 +1009,12 @@ class API:
    async def bench_image_generations(
        self, request: Request, payload: BenchImageGenerationTaskParams
    ) -> BenchImageGenerationResponse:
+        payload.model = await self._validate_image_model(ModelId(payload.model))
+
+        payload.stream = False
+        payload.partial_images = 0
        payload = payload.model_copy(
-            update={
-                "model": await self._validate_image_model(ModelId(payload.model)),
-                "stream": False,
-                "partial_images": 0,
-                "advanced_params": _ensure_seed(payload.advanced_params),
-            }
+            update={"advanced_params": _ensure_seed(payload.advanced_params)}
        )

        command = ImageGeneration(
@@ -1040,7 +1035,7 @@ class API:
        prompt: str,
        model: ModelId,
        n: int,
-        size: ImageSize,
+        size: str,
        response_format: Literal["url", "b64_json"],
        input_fidelity: Literal["low", "high"],
        stream: bool,
@@ -1110,7 +1105,7 @@ class API:
        prompt: str = Form(...),
        model: str = Form(...),
        n: int = Form(1),
-        size: str | None = Form(None),
+        size: str = Form("1024x1024"),
        response_format: Literal["url", "b64_json"] = Form("b64_json"),
        input_fidelity: Literal["low", "high"] = Form("low"),
        stream: str = Form("false"),
@@ -1136,7 +1131,7 @@ class API:
            prompt=prompt,
            model=ModelId(model),
            n=n,
-            size=normalize_image_size(size),
+            size=size,
            response_format=response_format,
            input_fidelity=input_fidelity,
            stream=stream_bool,
@@ -1172,7 +1167,7 @@ class API:
        prompt: str = Form(...),
        model: str = Form(...),
        n: int = Form(1),
-        size: str | None = Form(None),
+        size: str = Form("1024x1024"),
        response_format: Literal["url", "b64_json"] = Form("b64_json"),
        input_fidelity: Literal["low", "high"] = Form("low"),
        quality: Literal["high", "medium", "low"] = Form("medium"),
@@ -1192,7 +1187,7 @@ class API:
            prompt=prompt,
            model=ModelId(model),
            n=n,
-            size=normalize_image_size(size),
+            size=size,
            response_format=response_format,
            input_fidelity=input_fidelity,
            stream=False,
--- a/src/exo/master/tests/test_master.py
+++ b/src/exo/master/tests/test_master.py
@@ -42,7 +42,7 @@ from exo.utils.channels import channel
@pytest.mark.asyncio
 async def test_master():
    keypair = get_node_id_keypair()
-    node_id = NodeId(keypair.to_node_id())
+    node_id = NodeId(keypair.to_peer_id().to_base58())
    session_id = SessionId(master_node_id=node_id, election_clock=0)

    ge_sender, global_event_receiver = channel[ForwarderEvent]()
--- a/src/exo/routing/connection_message.py
+++ b/src/exo/routing/connection_message.py
@@ -30,7 +30,7 @@ class ConnectionMessage(CamelCaseModel):
    @classmethod
    def from_update(cls, update: ConnectionUpdate) -> "ConnectionMessage":
        return cls(
-            node_id=NodeId(update.peer_id),
+            node_id=NodeId(update.peer_id.to_base58()),
            connection_type=ConnectionMessageType.from_update_type(update.update_type),
            remote_ipv4=update.remote_ipv4,
            remote_tcp_port=update.remote_tcp_port,
--- a/src/exo/routing/router.py
+++ b/src/exo/routing/router.py
@@ -221,7 +221,7 @@ def get_node_id_keypair(
    Obtain the :class:`PeerId` by from it.
    """
    # TODO(evan): bring back node id persistence once we figure out how to deal with duplicates
-    return Keypair.generate()
+    return Keypair.generate_ed25519()

    def lock_path(path: str | bytes | PathLike[str] | PathLike[bytes]) -> Path:
        return Path(str(path) + ".lock")
@@ -235,12 +235,12 @@ def get_node_id_keypair(
                protobuf_encoded = f.read()

                try:  # if decoded successfully, save & return
-                    return Keypair.from_bytes(protobuf_encoded)
+                    return Keypair.from_protobuf_encoding(protobuf_encoded)
                except ValueError as e:  # on runtime error, assume corrupt file
                    logger.warning(f"Encountered error when trying to get keypair: {e}")

        # if no valid credentials, create new ones and persist
        with open(path, "w+b") as f:
            keypair = Keypair.generate_ed25519()
-            f.write(keypair.to_bytes())
+            f.write(keypair.to_protobuf_encoding())
            return keypair
--- a/src/exo/shared/models/model_cards.py
+++ b/src/exo/shared/models/model_cards.py
@@ -44,8 +44,7 @@ async def _refresh_card_cache():
        async for toml_file in path.rglob("*.toml"):
            try:
                card = await ModelCard.load_from_path(toml_file)
-                if card.model_id not in _card_cache:
-                    _card_cache[card.model_id] = card
+                _card_cache[card.model_id] = card
            except (ValidationError, TOMLKitError):
                pass

@@ -166,6 +165,7 @@ def is_custom_card(model_id: ModelId) -> bool:
 class ConfigData(BaseModel):
    model_config = {"extra": "ignore"}  # Allow unknown fields

+    model_type: str | None = None
    architectures: list[str] | None = None
    hidden_size: Annotated[int, Field(ge=0)] | None = None
    layer_count: int = Field(
@@ -183,7 +183,6 @@ class ConfigData(BaseModel):
    def supports_tensor(self) -> bool:
        return self.architectures in [
            ["Glm4MoeLiteForCausalLM"],
-            ["GlmMoeDsaForCausalLM"],
            ["DeepseekV32ForCausalLM"],
            ["DeepseekV3ForCausalLM"],
            ["Qwen3NextForCausalLM"],
@@ -202,6 +201,7 @@ class ConfigData(BaseModel):
            return data

        for field in [
+            "model_type",
            "architectures",
            "hidden_size",
            "num_hidden_layers",
--- a/src/exo/shared/tests/test_node_id_persistence.py
+++ b/src/exo/shared/tests/test_node_id_persistence.py
@@ -23,7 +23,7 @@ def _get_keypair_concurrent_subprocess_task(
    sem.release()
    # wait to be told to begin simultaneous read
    ev.wait()
-    queue.put(get_node_id_keypair().to_bytes())
+    queue.put(get_node_id_keypair().to_protobuf_encoding())


 def _get_keypair_concurrent(num_procs: int) -> bytes:
--- a/src/exo/shared/types/api.py
+++ b/src/exo/shared/types/api.py
@@ -1,9 +1,9 @@
 import time
 from collections.abc import Generator
-from typing import Annotated, Any, Literal, get_args
+from typing import Annotated, Any, Literal
 from uuid import uuid4

-from pydantic import BaseModel, Field, field_validator
+from pydantic import BaseModel, Field

 from exo.shared.models.model_cards import ModelCard, ModelId
 from exo.shared.types.common import CommandId, NodeId
@@ -262,27 +262,6 @@ class DeleteInstanceResponse(BaseModel):
    instance_id: InstanceId


-ImageSize = Literal[
-    "auto",
-    "512x512",
-    "768x768",
-    "1024x768",
-    "768x1024",
-    "1024x1024",
-    "1024x1536",
-    "1536x1024",
-]
-
-
-def normalize_image_size(v: object) -> ImageSize:
-    """Shared validator for ImageSize fields: maps None → "auto" and rejects invalid values."""
-    if v is None:
-        return "auto"
-    if v not in get_args(ImageSize):
-        raise ValueError(f"Invalid size: {v!r}. Must be one of {get_args(ImageSize)}")
-    return v  # pyright: ignore[reportReturnType]
-
-
 class AdvancedImageParams(BaseModel):
    seed: Annotated[int, Field(ge=0)] | None = None
    num_inference_steps: Annotated[int, Field(ge=1, le=100)] | None = None
@@ -302,7 +281,7 @@ class ImageGenerationTaskParams(BaseModel):
    partial_images: int | None = 0
    quality: Literal["high", "medium", "low"] | None = "medium"
    response_format: Literal["url", "b64_json"] | None = "b64_json"
-    size: ImageSize = "auto"
+    size: str | None = "1024x1024"
    stream: bool | None = False
    style: str | None = "vivid"
    user: str | None = None
@@ -310,11 +289,6 @@ class ImageGenerationTaskParams(BaseModel):
    # Internal flag for benchmark mode - set by API, preserved through serialization
    bench: bool = False

-    @field_validator("size", mode="before")
-    @classmethod
-    def normalize_size(cls, v: object) -> ImageSize:
-        return normalize_image_size(v)
-

 class BenchImageGenerationTaskParams(ImageGenerationTaskParams):
    bench: bool = True
@@ -331,18 +305,13 @@ class ImageEditsTaskParams(BaseModel):
    quality: Literal["high", "medium", "low"] | None = "medium"
    output_format: Literal["png", "jpeg", "webp"] = "png"
    response_format: Literal["url", "b64_json"] | None = "b64_json"
-    size: ImageSize = "auto"
+    size: str | None = "1024x1024"
    image_strength: float | None = 0.7
    stream: bool = False
    partial_images: int | None = 0
    advanced_params: AdvancedImageParams | None = None
    bench: bool = False

-    @field_validator("size", mode="before")
-    @classmethod
-    def normalize_size(cls, v: object) -> ImageSize:
-        return normalize_image_size(v)
-
    def __repr_args__(self) -> Generator[tuple[str, Any], None, None]:
        for name, value in super().__repr_args__():  # pyright: ignore[reportAny]
            if name == "image_data":
--- a/src/exo/worker/engines/image/generate.py
+++ b/src/exo/worker/engines/image/generate.py
@@ -14,7 +14,6 @@ from exo.shared.types.api import (
    ImageEditsTaskParams,
    ImageGenerationStats,
    ImageGenerationTaskParams,
-    ImageSize,
 )
 from exo.shared.types.memory import Memory
 from exo.shared.types.worker.runner_response import (
@@ -24,9 +23,9 @@ from exo.shared.types.worker.runner_response import (
 from exo.worker.engines.image.distributed_model import DistributedImageModel


-def parse_size(size_str: ImageSize) -> tuple[int, int]:
+def parse_size(size_str: str | None) -> tuple[int, int]:
    """Parse size parameter like '1024x1024' to (width, height) tuple."""
-    if size_str == "auto":
+    if not size_str:
        return (1024, 1024)

    try:
@@ -110,9 +109,6 @@ def generate_image(
            # Decode base64 image data and save to temp file
            image_path = Path(tmpdir) / "input.png"
            image_path.write_bytes(base64.b64decode(task.image_data))
-            if task.size == "auto":
-                with Image.open(image_path) as img:
-                    width, height = img.size

        for image_num in range(num_images):
            # Increment seed for each image to ensure unique results
--- a/src/exo/worker/engines/mlx/auto_parallel.py
+++ b/src/exo/worker/engines/mlx/auto_parallel.py
@@ -163,14 +163,11 @@ class PipelineLastLayer(CustomMlxLayer):
                output, (self.r + 1) % self.s, group=self.group
            )
            if cache is not None:
-                # CacheList (used by MLA models like DeepSeekV32, GLM MoE DSA)
-                # doesn't have .keys directly; access via first sub-cache.
-                _cache = cache[0] if hasattr(cache, "caches") else cache  # type: ignore
-                _cache.keys = mx.depends(_cache.keys, output)  # type: ignore
+                cache.keys = mx.depends(cache.keys, output)  # type: ignore[reportUnknownMemberType]
            if self.is_prefill:
                mx.eval(output)
                if cache is not None:
-                    mx.eval(_cache.keys)  # type: ignore
+                    mx.eval(cache.keys)  # type: ignore

        if not self.is_prefill:
            output = mx.distributed.all_gather(output, group=self.group)[
@@ -310,9 +307,7 @@ def patch_pipeline_model[T](model: T, group: mx.distributed.Group) -> T:

        # Add dependency to last cache entry to ensure distributed ops are evaluated
        if cache is not None:
-            last = cache[-1]  # type: ignore
-            dep_cache = last[0] if hasattr(last, "caches") else last  # type: ignore
-            dep_cache.keys = mx.depends(dep_cache.keys, logits)  # type: ignore
+            cache[-1].state = mx.depends(cache[-1].state, logits)  # type: ignore

        return logits

@@ -338,9 +333,7 @@ def patch_tensor_model[T](model: T) -> T:

        # Add dependency to last cache entry to ensure distributed ops are evaluated
        if cache is not None and len(cache) > 0:  # pyright: ignore[reportAny]
-            last = cache[-1]  # pyright: ignore[reportAny]
-            dep_cache = last[0] if hasattr(last, "caches") else last  # pyright: ignore[reportAny]
-            dep_cache.keys = mx.depends(dep_cache.keys, logits)  # pyright: ignore[reportAny,reportUnknownMemberType]
+            cache[-1].state = mx.depends(cache[-1].state, logits)  # pyright: ignore[reportAny,reportUnknownMemberType]

        return logits

@@ -554,12 +547,10 @@ class DeepSeekShardingStrategy(TensorParallelShardingStrategy):
        on_timeout: TimeoutCallback | None,
    ) -> nn.Module:
        model = cast(DeepseekV3Model, model)
-
        for layer in model.layers:
            eval_with_timeout(
                layer.parameters(), timeout_seconds / len(model.layers), on_timeout
            )
-
            # Shard the self attention
            if layer.self_attn.q_lora_rank is None:
                layer.self_attn.q_proj = self.all_to_sharded_linear(
@@ -590,18 +581,12 @@ class DeepSeekShardingStrategy(TensorParallelShardingStrategy):
                layer.mlp.down_proj = self.sharded_to_all_linear(layer.mlp.down_proj)
                layer.mlp.up_proj = self.all_to_sharded_linear(layer.mlp.up_proj)

-            # Shard the MoE.
+            # Shard the MoE. Shard in place since the MoE should be responsible
+            # for aggregating the results.
            else:
-                if getattr(layer.mlp, "shared_experts", None) is not None:
-                    self.all_to_sharded_linear_in_place(
-                        layer.mlp.shared_experts.gate_proj
-                    )
-                    self.sharded_to_all_linear_in_place(
-                        layer.mlp.shared_experts.down_proj
-                    )
-                    self.all_to_sharded_linear_in_place(
-                        layer.mlp.shared_experts.up_proj
-                    )
+                self.all_to_sharded_linear_in_place(layer.mlp.shared_experts.gate_proj)
+                self.sharded_to_all_linear_in_place(layer.mlp.shared_experts.down_proj)
+                self.all_to_sharded_linear_in_place(layer.mlp.shared_experts.up_proj)
                self.all_to_sharded_linear_in_place(layer.mlp.switch_mlp.gate_proj)
                self.sharded_to_all_linear_in_place(layer.mlp.switch_mlp.down_proj)
                self.all_to_sharded_linear_in_place(layer.mlp.switch_mlp.up_proj)
@@ -794,7 +779,8 @@ class MiniMaxShardingStrategy(TensorParallelShardingStrategy):

            layer.self_attn = WrappedMiniMaxAttention(layer.self_attn, self.group)  # pyright: ignore[reportAttributeAccessIssue,reportArgumentType]

-            # Shard the MoE.
+            # Shard the MoE. Shard in place since the MoE should be responsible
+            # for aggregating the results.
            self.all_to_sharded_linear_in_place(
                layer.block_sparse_moe.switch_mlp.gate_proj
            )
@@ -907,7 +893,8 @@ class QwenShardingStrategy(TensorParallelShardingStrategy):
                    layer.self_attn.num_attention_heads //= self.N
                    layer.self_attn.num_key_value_heads //= self.N

-            # Shard the MoE.
+            # Shard the MoE. Shard in place since the MoE should be responsible
+            # for aggregating the results.
            if isinstance(layer.mlp, (Qwen3MoeSparseMoeBlock, Qwen3NextSparseMoeBlock)):
                self.all_to_sharded_linear_in_place(layer.mlp.switch_mlp.gate_proj)
                self.sharded_to_all_linear_in_place(layer.mlp.switch_mlp.down_proj)
--- a/src/exo/worker/engines/mlx/generator/generate.py
+++ b/src/exo/worker/engines/mlx/generator/generate.py
@@ -57,7 +57,6 @@ def prefill(
    sampler: Callable[[mx.array], mx.array],
    prompt_tokens: mx.array,
    cache: KVCacheType,
-    group: mx.distributed.Group | None = None,
 ) -> tuple[float, int, list[CacheSnapshot]]:
    """Prefill the KV cache with prompt tokens.

@@ -87,9 +86,6 @@ def prefill(

    set_pipeline_prefill(model, is_prefill=True)

-    mx_barrier(group)
-    logger.info("Starting prefill")
-
    # Use max_tokens=1 because max_tokens=0 does not work.
    # We just throw away the generated token - we only care about filling the cache
    for _ in stream_generate(
@@ -309,9 +305,16 @@ def mlx_generate(
    )
    max_stop_len = max((len(s) for s in stop_sequences), default=0)

+    mx_barrier(group)
+    logger.info("Starting prefill")
+
    # Prefill cache with all tokens except the last one
    prefill_tps, prefill_tokens, ssm_snapshots_list = prefill(
-        model, tokenizer, sampler, prompt_tokens[:-1], caches, group
+        model,
+        tokenizer,
+        sampler,
+        prompt_tokens[:-1],
+        caches,
    )
    cache_snapshots: list[CacheSnapshot] | None = ssm_snapshots_list or None

@@ -328,7 +331,6 @@ def mlx_generate(
    think_start = tokenizer.think_start
    think_end = tokenizer.think_end

-    logger.info("Starting decode")
    mx_barrier(group)

    for completion_tokens, out in enumerate(
--- a/src/exo/worker/engines/mlx/utils_mlx.py
+++ b/src/exo/worker/engines/mlx/utils_mlx.py
@@ -269,28 +269,59 @@ def get_tokenizer(model_path: Path, shard_metadata: ShardMetadata) -> TokenizerW
    return load_tokenizer_for_model_id(shard_metadata.model_card.model_id, model_path)


-def get_eos_token_ids_for_model(model_id: ModelId) -> list[int] | None:
-    """
-    Get the EOS token IDs for a model based on its ID.
+def _read_model_type_from_config(model_path: Path) -> str | None:
+    """Read the model_type field from config.json at the given model path.

-    Some models require explicit EOS token configuration that isn't in their
-    tokenizer config. This function returns the known EOS token IDs for such models.
+    Returns None if config.json doesn't exist or doesn't contain model_type.
+    """
+    config_path = model_path / "config.json"
+    if not config_path.exists():
+        return None
+    try:
+        with open(config_path) as f:
+            config: dict[str, Any] = json.load(f)  # pyright: ignore[reportAny]
+        model_type: Any = config.get("model_type")
+        if model_type is None:
+            text_config: Any = config.get("text_config")
+            if isinstance(text_config, dict):
+                model_type = text_config.get("model_type")  # pyright: ignore[reportUnknownMemberType,reportUnknownVariableType]
+        return model_type if isinstance(model_type, str) else None
+    except (json.JSONDecodeError, OSError):
+        return None
+
+
+def get_eos_token_ids_for_model(
+    model_id: ModelId, model_type: str | None = None
+) -> list[int] | None:
+    """Get the EOS token IDs for a model based on its architecture type.
+
+    Uses model_type from config.json when available, falls back to model_id
+    string matching for backward compatibility.

    Args:
        model_id: The HuggingFace model ID
+        model_type: The model_type field from config.json (e.g., "kimi", "glm4")

    Returns:
        List of EOS token IDs, or None if the model uses standard tokenizer config
    """
+    if model_type is not None:
+        if model_type == "kimi":
+            return [163586]
+        elif model_type == "glm4_moe_lite":
+            # 154820: <|endoftext|>, 154827: <|user|>, 154829: <|observation|>
+            return [154820, 154827, 154829]
+        elif model_type.startswith("glm"):
+            return [151336, 151329, 151338]
+
+    # Fallback: string matching on model_id
    model_id_lower = model_id.lower()
    if "kimi-k2" in model_id_lower:
        return [163586]
-    elif "glm-5" in model_id_lower or "glm-4.7" in model_id_lower:
-        # For GLM-5 and GLM-4.7
+    elif "glm-4.7-flash" in model_id_lower:
        # 154820: <|endoftext|>, 154827: <|user|>, 154829: <|observation|>
        return [154820, 154827, 154829]
    elif "glm" in model_id_lower:
-        # For GLM-4.5 and older
        return [151336, 151329, 151338]
    return None

@@ -298,11 +329,10 @@ def get_eos_token_ids_for_model(model_id: ModelId) -> list[int] | None:
 def load_tokenizer_for_model_id(
    model_id: ModelId, model_path: Path
 ) -> TokenizerWrapper:
-    """
-    Load tokenizer for a model given its ID and local path.
+    """Load tokenizer for a model given its ID and local path.

-    This is the core tokenizer loading logic, handling special cases for different
-    model families (Kimi, GLM, etc.) and transformers 5.x compatibility.
+    Uses model_type from config.json for architecture detection when available,
+    falling back to model_id string matching for backward compatibility.

    Args:
        model_id: The HuggingFace model ID (e.g., "moonshotai/Kimi-K2-Instruct")
@@ -311,11 +341,21 @@ def load_tokenizer_for_model_id(
    Returns:
        TokenizerWrapper instance configured for the model
    """
+    model_type = _read_model_type_from_config(model_path)
    model_id_lower = model_id.lower()
-    eos_token_ids = get_eos_token_ids_for_model(model_id)
+    eos_token_ids = get_eos_token_ids_for_model(model_id, model_type=model_type)
+
+    is_kimi = (
+        model_type == "kimi" if model_type is not None else "kimi-k2" in model_id_lower
+    )
+    is_gemma3 = (
+        model_type == "gemma3"
+        if model_type is not None
+        else "gemma-3" in model_id_lower
+    )

    # Kimi uses a custom TikTokenTokenizer that transformers 5.x can't load via AutoTokenizer
-    if "kimi-k2" in model_id_lower:
+    if is_kimi:
        import importlib.util
        import types

@@ -369,7 +409,7 @@ def load_tokenizer_for_model_id(
        eos_token_ids=eos_token_ids,
    )

-    if "gemma-3" in model_id_lower:
+    if is_gemma3:
        gemma_3_eos_id = 1
        gemma_3_end_of_turn_id = 106
        if tokenizer.eos_token_ids is not None:
--- a/src/exo/worker/runner/runner_supervisor.py
+++ b/src/exo/worker/runner/runner_supervisor.py
@@ -191,7 +191,7 @@ class RunnerSupervisor:
        logger.info("Checking runner's status")
        if self.runner_process.is_alive():
            logger.info("Runner was found to be alive, attempting to join process")
-            await to_thread.run_sync(self.runner_process.join, 5)
+            await to_thread.run_sync(self.runner_process.join, 1)
        rc = self.runner_process.exitcode
        logger.info(f"RunnerSupervisor exited with exit code {rc}")
        if rc == 0:
--- a/src/exo/worker/tests/unittests/test_mlx/test_tokenizers.py
+++ b/src/exo/worker/tests/unittests/test_mlx/test_tokenizers.py
@@ -24,6 +24,7 @@ from exo.worker.engines.mlx.utils_mlx import (

 # Files needed for tokenizer functionality
 TOKENIZER_FILE_PATTERNS = [
+    "config.json",
    "tokenizer.json",
    "tokenizer_config.json",
    "special_tokens_map.json",
@@ -338,6 +339,9 @@ async def test_kimi_tokenizer_specifically():
    # Verify EOS token is set
    assert eos_token_ids == [163586], "Kimi EOS token should be [163586]"

+    # Verify architecture-based detection gives same result
+    assert get_eos_token_ids_for_model(model_id, model_type="kimi") == [163586]
+

 # Test GLM tokenizer since it also has special handling
@pytest.mark.asyncio
@@ -378,3 +382,10 @@ async def test_glm_tokenizer_specifically():
        151329,
        151338,
    ], "GLM EOS tokens should be correct"
+
+    # Verify architecture-based detection gives same result
+    assert get_eos_token_ids_for_model(model_id, model_type="glm4") == [
+        151336,
+        151329,
+        151338,
+    ]
--- a/uv.lock
+++ b/uv.lock
@@ -377,8 +377,8 @@ dependencies = [
    { name = "hypercorn", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
    { name = "loguru", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
    { name = "mflux", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
-    { name = "mlx", version = "0.30.6", source = { registry = "https://pypi.org/simple" }, extra = ["cpu"], marker = "sys_platform == 'linux'" },
-    { name = "mlx", version = "0.30.7.dev20260218+14841977", source = { git = "https://github.com/rltakashige/mlx-jaccl-fix-small-recv.git?branch=address-rdma-gpu-locks#1484197707f35186ad3bd614357c7c47fdf86ebc" }, marker = "sys_platform == 'darwin'" },
+    { name = "mlx", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
+    { name = "mlx", extra = ["cpu"], marker = "sys_platform == 'linux'" },
    { name = "mlx-lm", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
    { name = "msgspec", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
    { name = "openai-harmony", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
@@ -416,9 +416,9 @@ requires-dist = [
    { name = "hypercorn", specifier = ">=0.18.0" },
    { name = "loguru", specifier = ">=0.7.3" },
    { name = "mflux", specifier = "==0.15.5" },
-    { name = "mlx", marker = "sys_platform == 'darwin'", git = "https://github.com/rltakashige/mlx-jaccl-fix-small-recv.git?branch=address-rdma-gpu-locks" },
+    { name = "mlx", marker = "sys_platform == 'darwin'", specifier = "==0.30.6" },
    { name = "mlx", extras = ["cpu"], marker = "sys_platform == 'linux'", specifier = "==0.30.6" },
-    { name = "mlx-lm", specifier = "==0.30.7" },
+    { name = "mlx-lm", specifier = "==0.30.6" },
    { name = "msgspec", specifier = ">=0.19.0" },
    { name = "openai-harmony", specifier = ">=0.0.8" },
    { name = "pillow", specifier = ">=11.0,<12.0" },
@@ -1020,8 +1020,8 @@ dependencies = [
    { name = "fonttools", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
    { name = "huggingface-hub", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
    { name = "matplotlib", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
-    { name = "mlx", version = "0.30.6", source = { registry = "https://pypi.org/simple" }, extra = ["cuda13"], marker = "sys_platform == 'linux'" },
-    { name = "mlx", version = "0.30.7.dev20260218+14841977", source = { git = "https://github.com/rltakashige/mlx-jaccl-fix-small-recv.git?branch=address-rdma-gpu-locks#1484197707f35186ad3bd614357c7c47fdf86ebc" }, marker = "sys_platform == 'darwin'" },
+    { name = "mlx", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
+    { name = "mlx", extra = ["cuda13"], marker = "sys_platform == 'linux'" },
    { name = "numpy", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
    { name = "opencv-python", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
    { name = "piexif", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
@@ -1048,12 +1048,18 @@ wheels = [
 name = "mlx"
 version = "0.30.6"
 source = { registry = "https://pypi.org/simple" }
-resolution-markers = [
-    "sys_platform == 'linux'",
+dependencies = [
+    { name = "mlx-metal", marker = "sys_platform == 'darwin'" },
 ]
 wheels = [
+    { url = "https://files.pythonhosted.org/packages/ae/5b/e460e144a34d5529e010056cccf50b538d56ed001473bc6b246018fd58cb/mlx-0.30.6-cp313-cp313-macosx_14_0_arm64.whl", hash = "sha256:ed86f8bffc174c2f259ca589ea25464c96cf69d1bb457074a2bf2ef53737e54f", size = 573515, upload-time = "2026-02-06T03:45:23.405Z" },
+    { url = "https://files.pythonhosted.org/packages/60/25/69833fefb9a3fef30b56792b1bcd022496c4fea83e45411d289b77ef7546/mlx-0.30.6-cp313-cp313-macosx_15_0_arm64.whl", hash = "sha256:c52294958269e20f300639a17c1900ca8fc737d859ddda737f9811e94bd040e5", size = 573516, upload-time = "2026-02-06T03:45:24.618Z" },
+    { url = "https://files.pythonhosted.org/packages/9c/6a/7e7fbeebc5cb51b6a5eba96b263a6298707bcbdc059f4b0b73e088bc3dea/mlx-0.30.6-cp313-cp313-macosx_26_0_arm64.whl", hash = "sha256:b5b6636f7c49a4d86d8ec82643b972f45a144a7a9f3a967b27b2e6e22cf71e6a", size = 573592, upload-time = "2026-02-06T03:45:25.928Z" },
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+    { url = "https://files.pythonhosted.org/packages/60/23/361dc7a5797634e4d7e9bdd6564c6b28f9b1246672632def2f91bf066b18/mlx-0.30.6-cp314-cp314-macosx_14_0_arm64.whl", hash = "sha256:78804a89dcff4a838f7c2da72392fe87a523e95122a3c840e53df019122aad45", size = 575028, upload-time = "2026-02-06T03:45:31.549Z" },
+    { url = "https://files.pythonhosted.org/packages/a8/69/1854484d414171586814dfbe8def95f75c4ea2c7341ba13ba8ee675f7c62/mlx-0.30.6-cp314-cp314-macosx_15_0_arm64.whl", hash = "sha256:ec13584ab069665cc7ad34a05494d9291cd623aef6ae96be48875fc87cfc25d6", size = 575026, upload-time = "2026-02-06T03:45:33.072Z" },
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 ]
@@ -1066,14 +1072,6 @@ cuda13 = [
    { name = "mlx-cuda-13", marker = "sys_platform == 'linux'" },
 ]

-[[package]]
-name = "mlx"
-version = "0.30.7.dev20260218+14841977"
-source = { git = "https://github.com/rltakashige/mlx-jaccl-fix-small-recv.git?branch=address-rdma-gpu-locks#1484197707f35186ad3bd614357c7c47fdf86ebc" }
-resolution-markers = [
-    "sys_platform == 'darwin'",
-]
-
 [[package]]
 name = "mlx-cpu"
 version = "0.30.6"
@@ -1100,20 +1098,30 @@ wheels = [

 [[package]]
 name = "mlx-lm"
-version = "0.30.7"
+version = "0.30.6"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
    { name = "jinja2", marker = "sys_platform == 'darwin' or sys_platform == 'linux'" },
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