Figure out how to play a stream of Uint8Array chunks of raw pcm audio data. That way we don't have to convert audio to a huge wav file and play that, but can be handling it efficiently in memory only.
There is already makeAudioStream() in src/lib/ffmpeg.ts that creates the stream, but I was unable to figure out how to play it. The web audio API docs and examples available around the net are a spaghetti monster that has lead me to 10 or more dead ends before I've lost patience.