Bit of a different beast. Not something I would daily drive though. Slackware perhaps. But gentoo other then the docs being top notch and the learning experience being fairly streamlined. It is also a good distro for daily use.

I seed content I get as much as I can to I2P. No data caps here so not really any downside. You do have to limit stuff a bit to not overwhelm your connection at some point

I would argue Gentoo is better suited for that. It is just compilation that can take a long time.

I suggest using I2P and going to postman. If you go to the wish list. And suggest some music someone is likely to add it.