[jethro_tell]

A standard mp3 runs about 1MB per minute. You should really only have to buffer a couple seconds if you're streaming. If you try to keep a 4 second buffer your going to be somewhere between 40 and 70kb (this thing also has an SD card so you could keep a much shorter buffer if it was local.)

It really doesn't take much else, you'd need a tcp stack where most of the memory usage is buffers. Maybe 15-30 kb, and you'd need to load some player into mem as well.

There are tiny embedded devices all over that have music running on them. I've seen lightbulbs and light switches that can stream music.

Idk why everyone thinks it takes 500mb to play an MP3. Maybe because the vast majority of compute power these days seems to go to all the shit the app puls in to sell ads and native programs are all just electron apps but it really doesn't have to be like that for most functions of a computer.