git submodule update --init
to get emsdk, and then follow the official instruction: https://emscripten.org/docs/getting_started/downloads.html
cd tools/emsdk ./emsdk install latest ./emsdk activate latest
Inside your normal project directory, instead of make install which creates a hardware specific unit file, run
make wasm
This will build your audio processor class into wasm, set up a web audio based audio processing graph, and serve the web app via emrun, which is a local server that came with emsdk.