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606128e4e9
Vulkan backends bundled their own loader and ICD manifests but neither the Mesa driver the manifests point at nor a way to make the loader find them, so on a runtime base image without Mesa the loader enumerated zero devices and the GPU silently fell back to CPU (only NVIDIA worked, since its ICD is injected by the container toolkit). - scripts/build/package-gpu-libs.sh: for each installed ICD manifest, bundle the driver .so its library_path names — no hard-coded, platform-dependent soname list — plus that driver's ldd dependencies, skipping manifests whose driver isn't installed. Rewrite each library_path to a bare soname so the bundled driver resolves via the LD_LIBRARY_PATH run.sh already sets. - .docker/install-base-deps.sh, backend/Dockerfile.golang, backend/Dockerfile.python: install mesa-vulkan-drivers in every Vulkan builder so the driver + manifests exist to be packaged (the LunarG SDK ships only the loader and shader tooling). - pkg/model/process.go: when a backend ships vulkan/icd.d/, point the loader at it via VK_DRIVER_FILES/VK_ICD_FILENAMES at launch (no-op otherwise). Covered by pkg/model/process_vulkan_test.go. - backend/go/parakeet-cpp/package.sh: complete the L0 stub (was missing the libc-family ldd walk + GPU-lib packaging) by mirroring whisper, so the vulkan-parakeet image actually bundles its GPU runtime. Assisted-by: Claude Code:claude-opus-4-8 Signed-off-by: Richard Palethorpe <io@richiejp.com>