Added lots of things

I'm planning to release at least once or twice a week new features, fixes, etc. I currently can stick to this plan. 🤞

So after the huge release, I've added new language supports, like PHP, Rust. Also, you can deploy custom docker files as well, which opens the door for lots of things. 🎉

Improved the update process, so I can remotely (with a remote script) how and what an upgrade process does. Fancy words, but it's super cool for a self-hostable app.