[BrightGlow]

You may want to try this project: https://github.com/i-rinat/apulse

But I don't recommend using only ALSA without a sound server on a desktop, the usability of it is pretty bad.

[denton-scratch]

Apulse works for Firefox.

I have found ALSA useable, over many years. But I've never understood the config notation, so my configs have always been pretty cargo-cultish.