I use it as my work desktop is precisely to stop me pissing about with it. Play with stuff on an appropriate server is the lesson I am trying to teach myself.

It is sort of working.

I quite like mermaid.js for fast flowcharts. It’s intuitive enough and works in a fair few markdown programs too. Wouldn’t recommend it as a full Visio replacement, but it’s good enough for 90% of my needs.

Syncthing can easily be set to retain the last n copies. And you only need one or two to protect against corruption because you aren’t editing a corrupted file. Likewise a lot of the KeepassX clients can snapshot periodically too. Been doing this for years with no issues over Linux/Win/iOS and Android.