Im on wayland and don’t recall having an issue with audacity since i switched to Linux over a year ago fwiw. It’s been a few months since i did anything serious with it but a year ago i did initially record ~100 hours of audio on it for a project

Navidrome exposes the folder structure via the subsonic api, and any compatible app can then display folders if they want. Both symfonium (mobile) and feishin (desktop) have folder support.

Are there any good apps for android for navidrome/jellyfin respectively?

Symfonium is paid but by far the best i tried. Will work with both via subsonic api.

how easy can I add songs to them/do they pull metadata from somewhere (like jellyfin does for movies)

I use navidrome and can’t speak to jellyfin. Navidrome is intentionally read-only for security reasons so you add music to where navidrome can see it and it’ll auto-scan them in. For metadata my recommendation is musicbrainz picard. A lot of people recommend beets and it can be good but it’s a big learning curve. Musicbrainz picard has a nice gui and easier to get music matched for beginners.

how do they (or any other options) compare in terms of ease of setup/maintainability?

From what i see people use jellyfin because they don’t want “yet another container” and most people already have jellyfin for other media content. So that would be easiest route. Navidrome isn’t hard to set up though, and overall has a better feel for me.

do you have any overall recommendations?

Look into LRCGET to get the timesynced and/or plaintext lyrics of your songs. There’s also a navidrome plugin that will automatically fetch the lyrics when a song is played

Edit: for desktop id recommend feishin. It’ll work with both through subsonic api

Here are some scripts that can help too

(Edit: apparently i need to say to read and understand what these scripts are doing before running them. If you don’t understand what you’re running then don’t run them) https://gist.github.com/Kidev/85756c3dcad3623ca5604a8135bafd14

Might be your instance. Try blog and spot and .com without spaces. The blog is also linked within OPs article

Their april 15th blog post explicitly calls it a backdoor and mentions it was very well hidden. I’m interested to see what comes of this

Your github has no source code or licensing. Not sure if that was intentional or not since i see your github acct is only a few days old