I think decypharr might do what you want, it simulats a qbittorrent client to connect to debrid.

No debrid support, this is for connecting to the Arrs services which work for either torrents or usenet.

sonarr and radarr only have support for a single account wich among other things exposes api keys.

Seerr lets you have users with the same login as they use for jellyfin (or plex?) To request content and the server admin can approve or deny rhe request.

20mbps is enough for most things. It mostly limits how many peoppe you could share content to at once, but even then if you had say 4 people you wanted to stream a movie to jellyfin has options so you can limit each stream to 2mbps or whatever ends up working best.

Ive downloaded over 150k tracks from tidal using tidal dl and after a lot of testing the most theyve done to counter is rate limiting or blocking the IP i was using, but if you stick with reasonable limits of how quickly you are downloading tidal doesnt seem to care much.

So are they going to do another game thats pretty much just a reskin like when they turned that chinese mobile game into a diablo game?

Typically the project will offer its own deb repos and packages along with setup instructions such as steam or docker

In theory you can add LMDE or other debian based distros repos to your sources but it will most likely lead to things breaking. If you cant find instructions specific to debian then you are better off either compiling from source or using snap, appimage or whatever pre-compiled option is offered officially.