Je prend Mullvad aussi et j'en suis très content.

J'achète 1 mois, je télécharge comme un porc et je tiens un mois ou deux sans VPN puis je rachète un mois quand j'en ai besoin à nouveau.

Pour moi, le seul abonnement qui vaut le coup c'est mon abonnement VPN.

There is librelingo but, honestly, it's far behind Duolingo.

The closest software I found is to use a flashcard tool (like AnkiDroid) and then search for an open deck of your language using AnkiWeb.

Doing so you get a similar experience than DuoLingo without the gamification and pretty UI.

Which tool do you use to re-encode everything to opus ?

I tried with ffmpeg and it works but I had many issues with covers.

I personally run Debian in Testing and I have not the latest version but I think it's still fine.

As always, there is an xkdc about this

Same. Plus, on local network, everything stay on the network.

I'm starting watch a movie on my PC, then move the movie file into a synced folder, na finish the movie 2" later on my phone.