diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f338fac..ff00eeb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -696,6 +696,77 @@ jobs:
           path: |
             *.tar.gz
 
+  wasm:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Set up cache
+        id: cache
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/PawPawBuilds
+            */*.a
+            build/CardinalFX
+            build/plugins
+            build/rack
+            carla/build
+            dpf/build
+            src/Rack/dep/bin
+            src/Rack/dep/include
+            src/Rack/dep/lib
+            src/Rack/dep/share
+            src/Rack/dep/jansson-2.12
+            src/Rack/dep/libarchive-3.4.3
+            src/Rack/dep/libsamplerate-0.1.9
+            src/Rack/dep/speexdsp-SpeexDSP-1.2rc3
+            src/Rack/dep/zstd-1.4.5
+          key: wasm-v${{ env.CACHE_VERSION }}
+      - name: Set up dependencies
+        run: |
+            [ -e ~/PawPawBuilds/emsdk ] || git clone https://github.com/emscripten-core/emsdk.git ~/PawPawBuilds/emsdk
+            cd ~/PawPawBuilds/emsdk && ./emsdk install latest && ./emsdk activate latest
+      - name: Build extra dependencies
+        run: |
+          source ~/PawPawBuilds/emsdk/emsdk_env.sh
+          ./deps/PawPaw/bootstrap-cardinal.sh wasm && ./deps/PawPaw/.cleanup.sh wasm
+      #- name: Build wasm cross-compiled
+        #run: |
+          #source ~/PawPawBuilds/emsdk/emsdk_env.sh
+          #pushd deps/PawPaw; source local.env wasm; popd
+          #make features
+          #make CIBUILD=true NOOPT=true -j $(nproc)
+      - name: Set sha8 (non-release)
+        if: startsWith(github.ref, 'refs/tags/') != true
+        id: slug1
+        run: echo "::set-output name=sha8::$(echo ${{ github.sha }} | cut -c1-8)"
+      - name: Set sha8 (release)
+        if: startsWith(github.ref, 'refs/tags/')
+        id: slug2
+        run: echo "::set-output name=sha8::$(echo ${{ github.ref_name }})"
+      - name: Set sha8
+        id: slug
+        run: echo "::set-output name=sha8::$(echo ${{ steps.slug1.outputs.sha8 || steps.slug2.outputs.sha8 }})"
+      #- name: Pack binaries
+        #run: |
+          #cd bin; zip -r -9 ../${{ github.event.repository.name }}-wasm-${{ github.event.pull_request.number || steps.slug.outputs.sha8 }}.zip $(ls *.html *.data *.js *.wasm)
+      #- uses: actions/upload-artifact@v2
+        #with:
+          #name: ${{ github.event.repository.name }}-wasm-${{ github.event.pull_request.number || steps.slug.outputs.sha8 }}
+          #path: |
+            #*.zip
+      #- uses: softprops/action-gh-release@v1
+        #if: startsWith(github.ref, 'refs/tags/')
+        #with:
+          #tag_name: ${{ github.ref_name }}
+          #name: ${{ github.ref_name }}
+          #draft: false
+          #prerelease: false
+          #files: |
+            #*.zip
+
   win32:
     runs-on: ubuntu-20.04
     steps:
diff --git a/deps/PawPaw b/deps/PawPaw
index 2fdce32..ae5e265 160000
--- a/deps/PawPaw
+++ b/deps/PawPaw
@@ -1 +1 @@
-Subproject commit 2fdce32046bd1643bcb31884b075f4cdf8cada05
+Subproject commit ae5e26516596024a0268b5f8f1685050a248875a