feat(backend): add locate-anything-cpp backend (open-vocab detection via la_capi)

A Go/purego backend wrapping locate-anything.cpp's la_capi C ABI, implementing the gRPC Detect RPC: image + open-vocabulary text prompt -> labeled boxes. Mirrors backend/go/rfdetr-cpp; static-links ggml into a per-CPU-variant .so. Assisted-by: Claude:claude-opus-4-8 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
2026-06-12 02:38:19 -04:00 · 2026-06-11 22:13:32 +00:00
parent fba8c9c498
commit 8952a0a0e0
7 changed files with 534 additions and 0 deletions
--- a/backend/go/locate-anything-cpp/.gitignore
+++ b/backend/go/locate-anything-cpp/.gitignore
@@ -0,0 +1,7 @@
+sources/
+build*/
+package/
+liblocateanythingcpp*.so
+locate-anything-cpp
+test-models/
+test-data/
--- a/backend/go/locate-anything-cpp/CMakeLists.txt
+++ b/backend/go/locate-anything-cpp/CMakeLists.txt
@@ -0,0 +1,57 @@
+cmake_minimum_required(VERSION 3.18)
+project(liblocateanythingcpp LANGUAGES C CXX)
+
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# Static-link ggml + locate_anything so the resulting .so has no runtime
+# dependency on extra ggml/locate_anything shared libraries — only on
+# libc/libstdc++/libgomp, which the LocalAI package step bundles into the
+# docker image.
+set(BUILD_SHARED_LIBS OFF CACHE BOOL "Build static libraries" FORCE)
+
+# locate-anything.cpp build switches: skip CLI/tests, keep static lib.
+set(LA_BUILD_CLI OFF CACHE BOOL "Disable locate-anything CLI" FORCE)
+set(LA_BUILD_TESTS OFF CACHE BOOL "Disable locate-anything tests" FORCE)
+set(LA_SHARED OFF CACHE BOOL "Build locate_anything as static lib" FORCE)
+
+# Unlike rt-detr.cpp, locate-anything.cpp ships no in-tree ggml patches, so
+# there is no apply_ggml_patches.sh hook to shim here.
+add_subdirectory(./sources/locate-anything.cpp)
+
+# locate-anything.cpp's top-level CMakeLists points its own target's include
+# dirs at ${CMAKE_SOURCE_DIR}/{include,src,third_party,...}. CMAKE_SOURCE_DIR
+# is the *top-level* source dir of the whole CMake tree, so when we pull it in
+# via add_subdirectory it resolves to OUR directory, not theirs, and the
+# locate_anything target fails to find its own headers (la_capi.h, stb_image.h,
+# la_gguf_keys.h). Re-add the correct, subdir-relative include paths to the
+# already-defined target so it compiles regardless of where it's nested.
+set(LA_SRC ${CMAKE_CURRENT_SOURCE_DIR}/sources/locate-anything.cpp)
+target_include_directories(locate_anything PRIVATE
+    ${LA_SRC}/include
+    ${LA_SRC}/src
+    ${LA_SRC}/third_party
+    ${LA_SRC}/third_party/stb)
+
+# locate-anything.cpp's C-API symbols already live inside liblocate_anything
+# (src/la_capi.cpp is compiled into the lib). We re-export them via a MODULE
+# library that links locate_anything so the symbols are visible at dlopen time.
+add_library(locateanythingcpp MODULE
+    sources/locate-anything.cpp/src/la_capi.cpp)
+
+target_include_directories(locateanythingcpp PRIVATE
+    sources/locate-anything.cpp/include
+    sources/locate-anything.cpp/src
+    sources/locate-anything.cpp/third_party
+    sources/locate-anything.cpp/third_party/stb
+)
+
+target_link_libraries(locateanythingcpp PRIVATE locate_anything ggml)
+
+if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0)
+    target_link_libraries(locateanythingcpp PRIVATE stdc++fs)
+endif()
+
+set_property(TARGET locateanythingcpp PROPERTY CXX_STANDARD 17)
+set_target_properties(locateanythingcpp PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
--- a/backend/go/locate-anything-cpp/Makefile
+++ b/backend/go/locate-anything-cpp/Makefile
@@ -0,0 +1,126 @@
+CMAKE_ARGS?=
+BUILD_TYPE?=
+NATIVE?=false
+
+GOCMD?=go
+GO_TAGS?=
+JOBS?=$(shell nproc --ignore=1)
+
+# locate-anything.cpp. Pin to a specific commit for a stable build; leaving
+# this on `master` always picks up the latest C-API surface (incl. the
+# per-detection accessor functions used by golocateanythingcpp.go).
+LOCATEANYTHING_REPO?=https://github.com/mudler/locate-anything.cpp.git
+LOCATEANYTHING_VERSION?=60e450945476d5e97e0754a8c0e71a9ea81690e0
+
+ifeq ($(NATIVE),false)
+	CMAKE_ARGS+=-DGGML_NATIVE=OFF
+endif
+
+# Forward LocalAI's BUILD_TYPE to the matching ggml backend switch.
+ifeq ($(BUILD_TYPE),cublas)
+	CMAKE_ARGS+=-DGGML_CUDA=ON -DLA_GGML_CUDA=ON
+else ifeq ($(BUILD_TYPE),openblas)
+	CMAKE_ARGS+=-DGGML_BLAS=ON -DGGML_BLAS_VENDOR=OpenBLAS
+else ifeq ($(BUILD_TYPE),clblas)
+	CMAKE_ARGS+=-DGGML_CLBLAST=ON
+else ifeq ($(BUILD_TYPE),hipblas)
+	ROCM_HOME ?= /opt/rocm
+	ROCM_PATH ?= /opt/rocm
+	export CXX=$(ROCM_HOME)/llvm/bin/clang++
+	export CC=$(ROCM_HOME)/llvm/bin/clang
+	AMDGPU_TARGETS?=gfx908,gfx90a,gfx942,gfx950,gfx1030,gfx1100,gfx1101,gfx1102,gfx1200,gfx1201
+	CMAKE_ARGS+=-DGGML_HIPBLAS=ON -DAMDGPU_TARGETS=$(AMDGPU_TARGETS)
+else ifeq ($(BUILD_TYPE),vulkan)
+	CMAKE_ARGS+=-DGGML_VULKAN=ON -DLA_GGML_VULKAN=ON
+else ifeq ($(OS),Darwin)
+	ifneq ($(BUILD_TYPE),metal)
+		CMAKE_ARGS+=-DGGML_METAL=OFF
+	else
+		CMAKE_ARGS+=-DGGML_METAL=ON
+		CMAKE_ARGS+=-DGGML_METAL_EMBED_LIBRARY=ON
+		CMAKE_ARGS+=-DLA_GGML_METAL=ON
+	endif
+endif
+
+ifeq ($(BUILD_TYPE),sycl_f16)
+	CMAKE_ARGS+=-DGGML_SYCL=ON \
+		-DCMAKE_C_COMPILER=icx \
+		-DCMAKE_CXX_COMPILER=icpx \
+		-DGGML_SYCL_F16=ON
+endif
+
+ifeq ($(BUILD_TYPE),sycl_f32)
+	CMAKE_ARGS+=-DGGML_SYCL=ON \
+		-DCMAKE_C_COMPILER=icx \
+		-DCMAKE_CXX_COMPILER=icpx
+endif
+
+sources/locate-anything.cpp:
+	mkdir -p sources && \
+	git clone --recursive $(LOCATEANYTHING_REPO) sources/locate-anything.cpp && \
+	cd sources/locate-anything.cpp && \
+	git checkout $(LOCATEANYTHING_VERSION) && \
+	git submodule update --init --recursive --depth 1 --single-branch
+
+# Detect OS
+UNAME_S := $(shell uname -s)
+
+# Only build CPU variants on Linux
+ifeq ($(UNAME_S),Linux)
+	VARIANT_TARGETS = liblocateanythingcpp-avx.so liblocateanythingcpp-avx2.so liblocateanythingcpp-avx512.so liblocateanythingcpp-fallback.so
+else
+	# On non-Linux (e.g., Darwin), build only fallback variant
+	VARIANT_TARGETS = liblocateanythingcpp-fallback.so
+endif
+
+locate-anything-cpp: main.go golocateanythingcpp.go $(VARIANT_TARGETS)
+	CGO_ENABLED=0 $(GOCMD) build -tags "$(GO_TAGS)" -o locate-anything-cpp ./
+
+package: locate-anything-cpp
+	bash package.sh
+
+build: package
+
+clean: purge
+	rm -rf liblocateanythingcpp*.so locate-anything-cpp package sources
+
+purge:
+	rm -rf build*
+
+# Build all variants (Linux only)
+ifeq ($(UNAME_S),Linux)
+liblocateanythingcpp-avx.so: sources/locate-anything.cpp
+	rm -rfv build-$@
+	$(info ${GREEN}I locate-anything-cpp build info:avx${RESET})
+	SO_TARGET=$@ CMAKE_ARGS="$(CMAKE_ARGS) -DGGML_AVX=on -DGGML_AVX2=off -DGGML_AVX512=off -DGGML_FMA=off -DGGML_F16C=off -DGGML_BMI2=off" $(MAKE) liblocateanythingcpp-custom
+	rm -rfv build-$@
+
+liblocateanythingcpp-avx2.so: sources/locate-anything.cpp
+	rm -rfv build-$@
+	$(info ${GREEN}I locate-anything-cpp build info:avx2${RESET})
+	SO_TARGET=$@ CMAKE_ARGS="$(CMAKE_ARGS) -DGGML_AVX=on -DGGML_AVX2=on -DGGML_AVX512=off -DGGML_FMA=on -DGGML_F16C=on -DGGML_BMI2=on" $(MAKE) liblocateanythingcpp-custom
+	rm -rfv build-$@
+
+liblocateanythingcpp-avx512.so: sources/locate-anything.cpp
+	rm -rfv build-$@
+	$(info ${GREEN}I locate-anything-cpp build info:avx512${RESET})
+	SO_TARGET=$@ CMAKE_ARGS="$(CMAKE_ARGS) -DGGML_AVX=on -DGGML_AVX2=on -DGGML_AVX512=on -DGGML_FMA=on -DGGML_F16C=on -DGGML_BMI2=on" $(MAKE) liblocateanythingcpp-custom
+	rm -rfv build-$@
+endif
+
+# Build fallback variant (all platforms)
+liblocateanythingcpp-fallback.so: sources/locate-anything.cpp
+	rm -rfv build-$@
+	$(info ${GREEN}I locate-anything-cpp build info:fallback${RESET})
+	SO_TARGET=$@ CMAKE_ARGS="$(CMAKE_ARGS) -DGGML_AVX=off -DGGML_AVX2=off -DGGML_AVX512=off -DGGML_FMA=off -DGGML_F16C=off -DGGML_BMI2=off" $(MAKE) liblocateanythingcpp-custom
+	rm -rfv build-$@
+
+liblocateanythingcpp-custom: CMakeLists.txt
+	mkdir -p build-$(SO_TARGET) && \
+	cd build-$(SO_TARGET) && \
+	cmake .. $(CMAKE_ARGS) && \
+	cmake --build . --config Release -j$(JOBS) && \
+	cd .. && \
+	mv build-$(SO_TARGET)/liblocateanythingcpp.so ./$(SO_TARGET)
+
+all: locate-anything-cpp package
--- a/backend/go/locate-anything-cpp/golocateanythingcpp.go
+++ b/backend/go/locate-anything-cpp/golocateanythingcpp.go
@@ -0,0 +1,174 @@
+package main
+
+// golocateanythingcpp.go - gRPC handlers (Load, Detect) for the
+// locate-anything-cpp backend.
+//
+// Embeds base.SingleThread to default unimplemented RPCs to "not supported"
+// while we only implement open-vocabulary object detection (Detect).
+
+import (
+	"encoding/base64"
+	"fmt"
+	"os"
+	"path/filepath"
+	"unsafe"
+
+	"github.com/mudler/LocalAI/pkg/grpc/base"
+	pb "github.com/mudler/LocalAI/pkg/grpc/proto"
+)
+
+// la_ctx* is an opaque handle. la_capi_load returns it directly (0 == failure),
+// unlike rfdetr's out-parameter convention.
+var (
+	// la_capi_load(const char* gguf_path, int n_threads) -> la_ctx* (0 = fail)
+	CapiLoad func(gguf string, nThreads int32) uintptr
+	// la_capi_free(la_ctx* ctx)
+	CapiFree func(handle uintptr)
+	// la_capi_locate_path(ctx, image_path, prompt, mode) -> char* json (0 = err)
+	CapiLocatePath func(handle uintptr, imagePath string, prompt string, mode int32) uintptr
+	// la_capi_locate_buffer(ctx, bytes, len, prompt, mode) -> char* json (0 = err)
+	CapiLocateBuffer func(handle uintptr, bytes uintptr, length uintptr, prompt string, mode int32) uintptr
+	// la_capi_get_n_detections(ctx) -> int
+	CapiGetNDetections func(handle uintptr) int32
+	// la_capi_get_detection_box(ctx, i, out_xyxy[4]) -> int (0 on success)
+	CapiGetDetectionBox func(handle uintptr, i int32, outXYXY uintptr) int32
+	// la_capi_get_detection_label(ctx, i, buf, buf_size) -> int (required size incl NUL; two-call sizing)
+	CapiGetDetectionLabel func(handle uintptr, i int32, buf uintptr, bufSize int32) int32
+	// la_capi_free_string(char* s)
+	CapiFreeString func(s uintptr)
+	// la_capi_last_error(ctx) -> const char* (owned by ctx, "" if none / null ctx).
+	// purego marshals the returned C string into a Go string (a copy), so we
+	// never free it and avoid raw pointer arithmetic.
+	CapiLastError func(handle uintptr) string
+)
+
+type LocateAnythingCpp struct {
+	base.SingleThread
+	handle uintptr
+}
+
+// Load loads the GGUF model at opts.ModelFile (joined with opts.ModelPath if
+// relative) and stores the la_ctx handle for later Detect calls.
+func (r *LocateAnythingCpp) Load(opts *pb.ModelOptions) error {
+	modelFile := opts.ModelFile
+	if modelFile == "" {
+		modelFile = opts.Model
+	}
+	if modelFile == "" {
+		return fmt.Errorf("locate-anything-cpp: ModelFile is empty")
+	}
+
+	var modelPath string
+	if filepath.IsAbs(modelFile) {
+		modelPath = modelFile
+	} else {
+		modelPath = filepath.Join(opts.ModelPath, modelFile)
+	}
+
+	if _, err := os.Stat(modelPath); err != nil {
+		return fmt.Errorf("locate-anything-cpp: model file not found: %s: %w", modelPath, err)
+	}
+
+	threads := opts.Threads
+	if threads <= 0 {
+		threads = 4
+	}
+
+	// Release previous model if any (re-Load).
+	if r.handle != 0 {
+		CapiFree(r.handle)
+		r.handle = 0
+	}
+
+	h := CapiLoad(modelPath, threads)
+	if h == 0 {
+		// la_capi_last_error needs a ctx; on a failed load we have none (it
+		// returns "" for a null ctx), so the text is best-effort. Surface it
+		// when present.
+		if msg := CapiLastError(0); msg != "" {
+			return fmt.Errorf("locate-anything-cpp: la_capi_load failed for %s: %s", modelPath, msg)
+		}
+		return fmt.Errorf("locate-anything-cpp: la_capi_load failed for %s", modelPath)
+	}
+	r.handle = h
+	return nil
+}
+
+// Detect runs open-vocabulary detection on the base64-encoded image in opts.Src
+// using the required text prompt in opts.Prompt, returning one pb.Detection per
+// located object with its predicted label as ClassName.
+func (r *LocateAnythingCpp) Detect(opts *pb.DetectOptions) (pb.DetectResponse, error) {
+	if r.handle == 0 {
+		return pb.DetectResponse{}, fmt.Errorf("locate-anything-cpp: model not loaded")
+	}
+
+	// Open-vocabulary detection is prompt-driven; without a prompt there is
+	// nothing to locate.
+	prompt := opts.Prompt
+	if prompt == "" {
+		return pb.DetectResponse{}, fmt.Errorf("locate-anything-cpp: a text prompt is required (open-vocabulary detection)")
+	}
+
+	// Decode base64 image and write to temp file.
+	imgData, err := base64.StdEncoding.DecodeString(opts.Src)
+	if err != nil {
+		return pb.DetectResponse{}, fmt.Errorf("locate-anything-cpp: failed to decode base64 image: %w", err)
+	}
+
+	tmpFile, err := os.CreateTemp("", "locate-anything-*.img")
+	if err != nil {
+		return pb.DetectResponse{}, fmt.Errorf("locate-anything-cpp: failed to create temp file: %w", err)
+	}
+	defer func() { _ = os.Remove(tmpFile.Name()) }()
+
+	if _, err := tmpFile.Write(imgData); err != nil {
+		_ = tmpFile.Close()
+		return pb.DetectResponse{}, fmt.Errorf("locate-anything-cpp: failed to write temp file: %w", err)
+	}
+	if err := tmpFile.Close(); err != nil {
+		return pb.DetectResponse{}, fmt.Errorf("locate-anything-cpp: failed to close temp file: %w", err)
+	}
+
+	// mode 0 = hybrid (Parallel Box Decoding). The JSON return value is unused:
+	// structured detections are read via the accessor functions. Still must
+	// free the returned string.
+	jsonPtr := CapiLocatePath(r.handle, tmpFile.Name(), prompt, 0)
+	if jsonPtr != 0 {
+		CapiFreeString(jsonPtr)
+	}
+
+	n := CapiGetNDetections(r.handle)
+	if n < 0 {
+		return pb.DetectResponse{}, fmt.Errorf("locate-anything-cpp: invalid n_detections=%d", n)
+	}
+
+	detections := make([]*pb.Detection, 0, n)
+	for i := int32(0); i < n; i++ {
+		var xyxy [4]float32 // x1, y1, x2, y2
+		if CapiGetDetectionBox(r.handle, i, uintptr(unsafe.Pointer(&xyxy[0]))) != 0 {
+			continue
+		}
+
+		// Two-call sizing for the label string.
+		label := ""
+		need := CapiGetDetectionLabel(r.handle, i, 0, 0)
+		if need > 0 {
+			buf := make([]byte, need)
+			CapiGetDetectionLabel(r.handle, i, uintptr(unsafe.Pointer(&buf[0])), need)
+			label = string(buf[:need-1])
+		}
+
+		detections = append(detections, &pb.Detection{
+			X:          xyxy[0],
+			Y:          xyxy[1],
+			Width:      xyxy[2] - xyxy[0],
+			Height:     xyxy[3] - xyxy[1],
+			Confidence: 1.0,
+			ClassName:  label,
+		})
+	}
+
+	return pb.DetectResponse{
+		Detections: detections,
+	}, nil
+}
--- a/backend/go/locate-anything-cpp/main.go
+++ b/backend/go/locate-anything-cpp/main.go
@@ -0,0 +1,59 @@
+package main
+
+// main.go - entry point for the locate-anything-cpp gRPC backend.
+//
+// Dlopens liblocateanythingcpp-<variant>.so via purego at the path in
+// LOCATEANYTHING_LIBRARY (set by run.sh based on /proc/cpuinfo), registers
+// the la_capi_* C ABI symbols, then starts the gRPC server.
+
+import (
+	"flag"
+	"os"
+
+	"github.com/ebitengine/purego"
+	grpc "github.com/mudler/LocalAI/pkg/grpc"
+)
+
+var (
+	addr = flag.String("addr", "localhost:50051", "the address to connect to")
+)
+
+type LibFuncs struct {
+	FuncPtr any
+	Name    string
+}
+
+func main() {
+	// Get library name from environment variable, default to fallback
+	libName := os.Getenv("LOCATEANYTHING_LIBRARY")
+	if libName == "" {
+		libName = "./liblocateanythingcpp-fallback.so"
+	}
+
+	lib, err := purego.Dlopen(libName, purego.RTLD_NOW|purego.RTLD_GLOBAL)
+	if err != nil {
+		panic(err)
+	}
+
+	libFuncs := []LibFuncs{
+		{&CapiLoad, "la_capi_load"},
+		{&CapiFree, "la_capi_free"},
+		{&CapiLocatePath, "la_capi_locate_path"},
+		{&CapiLocateBuffer, "la_capi_locate_buffer"},
+		{&CapiGetNDetections, "la_capi_get_n_detections"},
+		{&CapiGetDetectionBox, "la_capi_get_detection_box"},
+		{&CapiGetDetectionLabel, "la_capi_get_detection_label"},
+		{&CapiFreeString, "la_capi_free_string"},
+		{&CapiLastError, "la_capi_last_error"},
+	}
+
+	for _, lf := range libFuncs {
+		purego.RegisterLibFunc(lf.FuncPtr, lib, lf.Name)
+	}
+
+	flag.Parse()
+
+	if err := grpc.StartServer(*addr, &LocateAnythingCpp{}); err != nil {
+		panic(err)
+	}
+}
--- a/backend/go/locate-anything-cpp/package.sh
+++ b/backend/go/locate-anything-cpp/package.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# Script to copy the appropriate libraries based on architecture
+
+set -e
+
+CURDIR=$(dirname "$(realpath $0)")
+REPO_ROOT="${CURDIR}/../../.."
+
+# Create lib directory
+mkdir -p $CURDIR/package/lib
+
+cp -avf $CURDIR/liblocateanythingcpp-*.so $CURDIR/package/
+cp -avf $CURDIR/locate-anything-cpp $CURDIR/package/
+cp -fv $CURDIR/run.sh $CURDIR/package/
+
+# Detect architecture and copy appropriate libraries
+if [ -f "/lib64/ld-linux-x86-64.so.2" ]; then
+    # x86_64 architecture
+    echo "Detected x86_64 architecture, copying x86_64 libraries..."
+    cp -arfLv /lib64/ld-linux-x86-64.so.2 $CURDIR/package/lib/ld.so
+    cp -arfLv /lib/x86_64-linux-gnu/libc.so.6 $CURDIR/package/lib/libc.so.6
+    cp -arfLv /lib/x86_64-linux-gnu/libgcc_s.so.1 $CURDIR/package/lib/libgcc_s.so.1
+    cp -arfLv /lib/x86_64-linux-gnu/libstdc++.so.6 $CURDIR/package/lib/libstdc++.so.6
+    cp -arfLv /lib/x86_64-linux-gnu/libm.so.6 $CURDIR/package/lib/libm.so.6
+    cp -arfLv /lib/x86_64-linux-gnu/libgomp.so.1 $CURDIR/package/lib/libgomp.so.1
+    cp -arfLv /lib/x86_64-linux-gnu/libdl.so.2 $CURDIR/package/lib/libdl.so.2
+    cp -arfLv /lib/x86_64-linux-gnu/librt.so.1 $CURDIR/package/lib/librt.so.1
+    cp -arfLv /lib/x86_64-linux-gnu/libpthread.so.0 $CURDIR/package/lib/libpthread.so.0
+elif [ -f "/lib/ld-linux-aarch64.so.1" ]; then
+    # ARM64 architecture
+    echo "Detected ARM64 architecture, copying ARM64 libraries..."
+    cp -arfLv /lib/ld-linux-aarch64.so.1 $CURDIR/package/lib/ld.so
+    cp -arfLv /lib/aarch64-linux-gnu/libc.so.6 $CURDIR/package/lib/libc.so.6
+    cp -arfLv /lib/aarch64-linux-gnu/libgcc_s.so.1 $CURDIR/package/lib/libgcc_s.so.1
+    cp -arfLv /lib/aarch64-linux-gnu/libstdc++.so.6 $CURDIR/package/lib/libstdc++.so.6
+    cp -arfLv /lib/aarch64-linux-gnu/libm.so.6 $CURDIR/package/lib/libm.so.6
+    cp -arfLv /lib/aarch64-linux-gnu/libgomp.so.1 $CURDIR/package/lib/libgomp.so.1
+    cp -arfLv /lib/aarch64-linux-gnu/libdl.so.2 $CURDIR/package/lib/libdl.so.2
+    cp -arfLv /lib/aarch64-linux-gnu/librt.so.1 $CURDIR/package/lib/librt.so.1
+    cp -arfLv /lib/aarch64-linux-gnu/libpthread.so.0 $CURDIR/package/lib/libpthread.so.0
+elif [ $(uname -s) = "Darwin" ]; then
+    echo "Detected Darwin"
+else
+    echo "Error: Could not detect architecture"
+    exit 1
+fi
+
+# Package GPU libraries based on BUILD_TYPE
+GPU_LIB_SCRIPT="${REPO_ROOT}/scripts/build/package-gpu-libs.sh"
+if [ -f "$GPU_LIB_SCRIPT" ]; then
+    echo "Packaging GPU libraries for BUILD_TYPE=${BUILD_TYPE:-cpu}..."
+    source "$GPU_LIB_SCRIPT" "$CURDIR/package/lib"
+    package_gpu_libs
+fi
+
+echo "Packaging completed successfully"
+ls -liah $CURDIR/package/
+ls -liah $CURDIR/package/lib/
--- a/backend/go/locate-anything-cpp/run.sh
+++ b/backend/go/locate-anything-cpp/run.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+set -ex
+
+# Get the absolute current dir where the script is located
+CURDIR=$(dirname "$(realpath $0)")
+
+cd /
+
+echo "CPU info:"
+if [ "$(uname)" != "Darwin" ]; then
+	grep -e "model\sname" /proc/cpuinfo | head -1
+	grep -e "flags" /proc/cpuinfo | head -1
+fi
+
+LIBRARY="$CURDIR/liblocateanythingcpp-fallback.so"
+
+if [ "$(uname)" != "Darwin" ]; then
+	if grep -q -e "\savx\s" /proc/cpuinfo ; then
+		echo "CPU:    AVX    found OK"
+		if [ -e $CURDIR/liblocateanythingcpp-avx.so ]; then
+			LIBRARY="$CURDIR/liblocateanythingcpp-avx.so"
+		fi
+	fi
+
+	if grep -q -e "\savx2\s" /proc/cpuinfo ; then
+		echo "CPU:    AVX2   found OK"
+		if [ -e $CURDIR/liblocateanythingcpp-avx2.so ]; then
+			LIBRARY="$CURDIR/liblocateanythingcpp-avx2.so"
+		fi
+	fi
+
+	# Check avx 512
+	if grep -q -e "\savx512f\s" /proc/cpuinfo ; then
+		echo "CPU:    AVX512F found OK"
+		if [ -e $CURDIR/liblocateanythingcpp-avx512.so ]; then
+			LIBRARY="$CURDIR/liblocateanythingcpp-avx512.so"
+		fi
+	fi
+fi
+
+export LD_LIBRARY_PATH=$CURDIR/lib:$LD_LIBRARY_PATH
+export LOCATEANYTHING_LIBRARY=$LIBRARY
+
+# If there is a lib/ld.so, use it
+if [ -f $CURDIR/lib/ld.so ]; then
+	echo "Using lib/ld.so"
+	echo "Using library: $LIBRARY"
+	exec $CURDIR/lib/ld.so $CURDIR/locate-anything-cpp "$@"
+fi
+
+echo "Using library: $LIBRARY"
+exec $CURDIR/locate-anything-cpp "$@"