Joe

Additional SPoFs: Your upstream internet connection, your modem/router, electricity supply, your home (not burning, flooded, collapsed, etc.). And you.

Ha, mia samideano! Tre bon’!

25 or so years ago, I learnt Esperanto (my first second language) by chatting on the Internet. I’d have two windows open - one with the IRC client, and the other with a terminal and a shell script that would grep a txt file with consistent formatting. “esp esperantoVerbPrefix/” or “esp noun,” or “esp affix-” would typically return the correct result in a split second. Thanks to the simple grammar (that I had quickly memorized), I could hold conversations in near real time as a result.

I wish I could have learnt my other languages as easily.

</story time>

Anki ?

NFSv3 (udp, stateless) was always as reliable as the network infra under Linux, I found. NFSv4 made things a bit more complicated.

You don’t want any NAT / stateful connection tracking in the network path (anything that could hiccup and forget), and wired connections only for permanent storage mounts, of course.

Deemix is a good way to build up your local cache from Deezer, at which point you can serve it locally.

It will mess with artist renumeration though (which seems important to you), so you might want to find another way to compensate your favourite artists.

Welcome to the world of Carrier Grade NAT. 100.64.0.0/10 is reserved for this.

If you are lucky, you also have an IPv6 address. The catch is you need IPv6 on the client-side too.

A VPS or similar running wireguard and a proxy might bridge the gap.

It might also be possible to ask your provider for some port forwarding. Probably not, but check anyway.

Good luck!