JetKVM Advanced, CGO-based 2-way Audio Support

.devcontainer/devcontainer.json

@@ -1,10 +1,15 @@
 {
 	"name": "JetKVM",
-	"image": "mcr.microsoft.com/devcontainers/go:1-1.23-bookworm",
+	"image": "mcr.microsoft.com/devcontainers/base:ubuntu-22.04",
+	"runArgs": ["--platform=linux/amd64" ],
 	"features": {
 		"ghcr.io/devcontainers/features/node:1": {
 			// Should match what is defined in ui/package.json
 			"version": "22.15.0"
+		},
+		"ghcr.io/devcontainers/features/go:1": {
+			// Should match what is defined in go.mod
+			"version": "latest"
 		}
 	},
 	"mounts": [

.github/workflows/golangci-lint.yml

@@ -27,11 +27,67 @@ jobs:
         uses: actions/setup-go@fa96338abe5531f6e34c5cc0bbe28c1a533d5505 # v4.2.1
         with:
           go-version: 1.24.4
+      - name: Setup build environment variables
+        id: build-env
+        run: |
+          # Extract versions from Makefile
+          ALSA_VERSION=$(grep '^ALSA_VERSION' Makefile | cut -d'=' -f2 | tr -d ' ')
+          OPUS_VERSION=$(grep '^OPUS_VERSION' Makefile | cut -d'=' -f2 | tr -d ' ')
+
+          # Get rv1106-system latest commit
+          RV1106_COMMIT=$(git ls-remote https://github.com/jetkvm/rv1106-system.git HEAD | cut -f1)
+
+          # Set environment variables
+          echo "ALSA_VERSION=$ALSA_VERSION" >> $GITHUB_ENV
+          echo "OPUS_VERSION=$OPUS_VERSION" >> $GITHUB_ENV
+          echo "RV1106_COMMIT=$RV1106_COMMIT" >> $GITHUB_ENV
+
+          # Set outputs for use in other steps
+          echo "alsa_version=$ALSA_VERSION" >> $GITHUB_OUTPUT
+          echo "opus_version=$OPUS_VERSION" >> $GITHUB_OUTPUT
+          echo "rv1106_commit=$RV1106_COMMIT" >> $GITHUB_OUTPUT
+
+          # Set resolved cache path
+          CACHE_PATH="$HOME/.jetkvm/audio-libs"
+          echo "CACHE_PATH=$CACHE_PATH" >> $GITHUB_ENV
+          echo "cache_path=$CACHE_PATH" >> $GITHUB_OUTPUT
+
+          echo "Extracted ALSA version: $ALSA_VERSION"
+          echo "Extracted Opus version: $OPUS_VERSION"
+          echo "Latest rv1106-system commit: $RV1106_COMMIT"
+          echo "Cache path: $CACHE_PATH"
+      - name: Restore audio dependencies cache
+        id: cache-audio-deps
+        uses: actions/cache/restore@v4
+        with:
+          path: ${{ steps.build-env.outputs.cache_path }}
+          key: audio-deps-${{ runner.os }}-alsa-${{ steps.build-env.outputs.alsa_version }}-opus-${{ steps.build-env.outputs.opus_version }}-rv1106-${{ steps.build-env.outputs.rv1106_commit }}
+      - name: Setup development environment
+        if: steps.cache-audio-deps.outputs.cache-hit != 'true'
+        run: make dev_env
+        env:
+          ALSA_VERSION: ${{ env.ALSA_VERSION }}
+          OPUS_VERSION: ${{ env.OPUS_VERSION }}
       - name: Create empty resource directory
         run: |
           mkdir -p static && touch static/.gitkeep
+      - name: Save audio dependencies cache
+        if: always() && steps.cache-audio-deps.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v4
+        with:
+          path: ${{ steps.build-env.outputs.cache_path }}
+          key: ${{ steps.cache-audio-deps.outputs.cache-primary-key }}
       - name: Lint
         uses: golangci/golangci-lint-action@1481404843c368bc19ca9406f87d6e0fc97bdcfd # v7.0.0
         with:
           args: --verbose
           version: v2.0.2
+        env:
+          CGO_ENABLED: 1
+          GOOS: linux
+          GOARCH: arm
+          GOARM: 7
+          CC: ${{ steps.build-env.outputs.cache_path }}/../rv1106-system/tools/linux/toolchain/arm-rockchip830-linux-uclibcgnueabihf/bin/arm-rockchip830-linux-uclibcgnueabihf-gcc
+          PKG_CONFIG_PATH: ${{ steps.build-env.outputs.cache_path }}/alsa-lib-${{ steps.build-env.outputs.alsa_version }}/utils:${{ steps.build-env.outputs.cache_path }}/opus-${{ steps.build-env.outputs.opus_version }}
+          CGO_CFLAGS: "-O3 -mfpu=neon -mtune=cortex-a7 -mfloat-abi=hard -ftree-vectorize -ffast-math -funroll-loops -mvectorize-with-neon-quad -marm -D__ARM_NEON -I${{ steps.build-env.outputs.cache_path }}/alsa-lib-${{ steps.build-env.outputs.alsa_version }}/include -I${{ steps.build-env.outputs.cache_path }}/opus-${{ steps.build-env.outputs.opus_version }}/include -I${{ steps.build-env.outputs.cache_path }}/opus-${{ steps.build-env.outputs.opus_version }}/celt"
+          CGO_LDFLAGS: "-L${{ steps.build-env.outputs.cache_path }}/alsa-lib-${{ steps.build-env.outputs.alsa_version }}/src/.libs -lasound -L${{ steps.build-env.outputs.cache_path }}/opus-${{ steps.build-env.outputs.opus_version }}/.libs -lopus -lm -ldl -static"

.gitignore

@@ -1,6 +1,14 @@
 bin/*
 static/*
+.vscode/
+tmp/
+.devcontainer/devcontainer-lock.json
 .idea
 .DS_Store
+*.log
+*.tmp
+*.code-workspace
 
-device-tests.tar.gz
+device-tests.tar.gz
+CLAUDE.md
+.claude/

.golangci.yml

@@ -1,4 +1,7 @@
 version: "2"
+run:
+  build-tags:
+    - nolint
 linters:
   enable:
     - forbidigo