Devenv 1.0: Rewrite in Rust

Hey folks,

We've shipped a pretty big update this time, incorporating a lot of feedback and issues from the last year.

Here's a 5min demo: https://twitter.com/domenkozar/status/1770444437505929637

Domen

Congrats on the 1.0! I've been using devenv.sh for all my personal and work projects and, aside for some 10+ year old legacy projects, it has been smooth sailing.

Thanks for the hard work!