Actually this is a godsend for me. I've been meaning to experiment with Rust, and I keep a ~/NOTES directory with these kind of notes. Hopefully I'll contribute something soon!

This looks like a useful tool, but at the moment I consider vimwiki to be better suited for my needs, even if it does not support encryption like theca.

Seems the URL is down. Looks to be this one though; https://github.com/rolandshoemaker/theca