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193d0e6aef
The supertonic Go TTS backend dlopens ONNX Runtime, but its runtime and packaging scripts were Linux-only: run.sh exported LD_LIBRARY_PATH, pointed ONNXRUNTIME_LIB_PATH at libonnxruntime.so, and always tried the ld.so exec path, while package.sh hard-failed on any non-Linux host. On macOS dyld has no ld.so loader, uses DYLD_LIBRARY_PATH, and ONNX Runtime ships as a .dylib. This applies the same purego .dylib/DYLD_LIBRARY_PATH fix that PR #10481 landed for 15 other ONNX/purego backends (sherpa-onnx, silero-vad, etc.) but which omitted supertonic: - run.sh: on darwin export DYLD_LIBRARY_PATH and point ONNXRUNTIME_LIB_PATH at libonnxruntime.dylib; guard the ld.so exec path to Linux only. - package.sh: recognize Darwin instead of erroring out; the bundled .dylib is resolved via DYLD_LIBRARY_PATH, no glibc/ld.so to bundle. - helper.go: platform-native default library extension (dylib on darwin) for the last-resort dlopen fallback. It also wires the darwin CI build and gallery entries, resolving the inconsistency where backend/index.yaml advertised metal for supertonic but no includeDarwin matrix entry built the image: - .github/backend-matrix.yml: add the -metal-darwin-arm64-supertonic Go entry. - backend/index.yaml: declare metal capabilities and add the concrete metal-supertonic / metal-supertonic-development child entries. The Makefile already detects Darwin/osx/arm64 and stages the per-OS ONNX Runtime tarball, mirroring sherpa-onnx, so no Makefile change is required. Assisted-by: Claude:opus-4.8 [Claude Code] Signed-off-by: Ettore Di Giacinto <mudler@localai.io> Co-authored-by: Ettore Di Giacinto <mudler@localai.io>