diff --git a/build.gradle.kts b/build.gradle.kts
index f96045ab3b..ec3e3a9ca1 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -42,13 +42,25 @@ plugins.withId("org.meshtastic.flatpak.sources") {
     extensions.configure<org.meshtastic.flatpak.sources.FlatpakSourcesExtension> {
         outputFile.set(layout.buildDirectory.file("flatpak-sources.json"))
         mustRunAfterTasks.set(listOf(":desktopApp:assemble", ":desktopApp:packageUberJarForCurrentOS"))
-        // Force-resolve platform-specific native artifacts not resolved on the generation host.
-        // The compose-desktop version MUST track the compose-multiplatform catalog version, else the
-        // arm64 offline flatpak build fails to resolve desktop-jvm-linux-arm64 (skiko version per its POM).
+        // Force-resolve platform-specific native artifacts not resolved on the generation host (the
+        // manifest is generated on an x86_64 runner, but the offline build also needs to run on arm64).
+        //
+        // KEEP desktop-jvm's version IN SYNC with the compose-multiplatform entry in
+        // gradle/libs.versions.toml — that's exactly the maintenance trap that caused this to break once
+        // already: this block was pinned to 1.11.1 and never updated when the catalog moved to
+        // 1.12.0-rc01, so the arm64 offline flatpak build kept resolving (and shipping) URLs for a version
+        // nothing in the project used anymore. (A `libs.versions.composeMultiplatform` reference here
+        // would auto-track it, but that accessor isn't resolvable in this project's script — tried and
+        // confirmed via a direct `./gradlew help` failure — so it has to stay a literal that a human/agent
+        // updates by hand alongside any compose-multiplatform bump.)
+        //
+        // skiko isn't in this catalog at all — its version must track whatever desktop-jvm-<platform>'s
+        // own POM declares for org.jetbrains.skiko:skiko-awt-runtime-<platform> (0.150.1 for
+        // compose-multiplatform 1.12.0-rc01); check that POM again if this version is bumped.
         targetPlatforms.set(setOf("linux-x64", "linux-arm64"))
         platformDependencies.set(setOf(
-            "org.jetbrains.skiko:skiko-awt-runtime-{platform}:0.144.6",
-            "org.jetbrains.compose.desktop:desktop-jvm-{platform}:1.11.1",
+            "org.jetbrains.skiko:skiko-awt-runtime-{platform}:0.150.1",
+            "org.jetbrains.compose.desktop:desktop-jvm-{platform}:1.12.0-rc01",
         ))
     }
 }