Yeah, reaper is definitely not open.

I think my all time favorite for learning a new language is language transfer. Though, I don’t see a polish or Japanese option, sadly.

And Krita!

i think Zotero is indeed open source, free software

I think you might like to try it. Maybe to get a taste for it try the nix package manager first. Right now I’m kind of struggling on whether or not NixOS is the one for me or Gnu Guix. Both are pretty awesome.

Right, thank you. I haven’t had my coffee yet. I should have been more clear.

Okay, so I haven’t installed Debian in quite some time, but I think I know what’s happening here.

It’s looking for the CD / DVD “repos” because it may be enabled in your apt sources. You just have to comment out the lines involved with CD and DVD in your /etc/apt/sources.list file I think.

Uh, yeah. Cheers