1. Thanks, I've never heard about this, will definitely need to check it out. Opened https://github.com/alexmojaki/futurecoder/issues/418

2. Because it all runs in the browser (thanks to Pyodide) it's just some static files, so it's extremely cheap to host. I can keep it going long after I'm bored with it. If I die or something and the site literally goes down, someone else can easily host it. There's already a slightly customised mirror of the French site hosted here: https://futurecoder.forge.aeif.fr/