Merge branch 'v2-mtr' into v2

* v2-mtr:
  Update Muxlicer manual/changelog
  Update build-plugin.yml
  Update build-plugin.yml
  Update DC blocker to RC filter
  Fix name and update with ARM builds
  Addressing feedback from Robin
  Improve Muxlicer docs
  Don't cut out sound on startup
  Add startup animation
  Improve MTR

.github/workflows/build-plugin.yml

@@ -2,63 +2,76 @@ name: Build VCV Rack Plugin
 on: [push, pull_request]
 
 env:
-  rack-sdk-version: 2.2.0
+  rack-sdk-version: 2.2.1
+  rack-plugin-toolchain-dir: /home/build/rack-plugin-toolchain
 
 defaults:
   run:
     shell: bash
 
-jobs:
+jobs:  
   build:
-    name: ${{ matrix.config.os }}
-    runs-on: ${{ matrix.config.os }}
+    name: ${{ matrix.platform }}
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/qno/rack-plugin-toolchain-win-linux
+      options: --user root
     strategy:
+      fail-fast: false
       matrix:
-        config:
-          - os: ubuntu-latest
-            arch: lin-x64
-            compiler: cc
-            install-dependencies: |
-              sudo apt-get update && sudo apt-get install -y libglu-dev
-          - os: macos-latest
-            arch: mac-x64
-            compiler: cc
-            install-dependencies: |
-              brew install mesa
-          - os: windows-latest
-            arch: win-x64
-            compiler: gcc
-            install-dependencies: |
-              choco install --no-progress -y zip
+        platform: [win-x64, linux-x64]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
-          submodules: true
-      - name: Install Rack SDK
+          submodules: recursive
+      - name: Build plugin
         run: |
-          curl -o sdk.zip https://vcvrack.com/downloads/Rack-SDK-${{ env.rack-sdk-version }}-${{ matrix.config.arch }}.zip
-          unzip sdk.zip
-      - name: Install Dependencies
+          export PLUGIN_DIR=$GITHUB_WORKSPACE
+          pushd ${{ env.rack-plugin-toolchain-dir }}
+          make plugin-build-${{ matrix.platform }}
+      - name: Upload artifact
+        uses: actions/upload-artifact@v3
+        with:
+          path: ${{ env.rack-plugin-toolchain-dir }}/plugin-build
+          name: ${{ matrix.platform }}
+
+  build-mac:
+    name: mac 
+    runs-on: macos-12
+    strategy:
+      fail-fast: false
+      matrix:
+        platform: [x64, arm64]
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Get Rack-SDK
         run: |
-          ${{ matrix.config.install-dependencies }}
-      - name: Build
-        env:
-          RACK_DIR: Rack-SDK
-          CC: ${{ matrix.config.compiler }}
+          pushd $HOME
+          curl -o Rack-SDK.zip https://vcvrack.com/downloads/Rack-SDK-${{ env.rack-sdk-version }}-mac-${{ matrix.platform }}.zip
+          unzip Rack-SDK.zip
+      - name: Build plugin
         run: |
+          CROSS_COMPILE_TARGET_x64=x86_64-apple-darwin
+          CROSS_COMPILE_TARGET_arm64=arm64-apple-darwin
+          export RACK_DIR=$HOME/Rack-SDK
+          export CROSS_COMPILE=$CROSS_COMPILE_TARGET_${{ matrix.platform }}
+          make dep
           make dist
+          echo "Plugin architecture '$(lipo -archs plugin.dylib)'"
       - name: Upload artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
-          path: dist
-          name: ${{ matrix.config.arch }}.zip
+          path: dist/*.vcvplugin
+          name: mac-${{ matrix.platform }}
 
   publish:
     name: Publish plugin
     runs-on: ubuntu-18.04
-    needs: build
+    needs: [build, build-mac]
     steps:
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           path: _artifacts
       - uses: "marvinpinto/action-automatic-releases@latest"