I do this, more or less, for my small law firm. Employee and client information are stored in Recfiles and accessed with GNU Recutils. Adding or changing is a pull request, and all sorts of GitHub actions run. Works pretty well!

+1 would love to see a video or read an extended write-up of how you implemented and work with your system on a daily basis, and what exactly it does for you

beyond the source controlled database, is it doing the same as what the article describes? ie enforces requirements etc

Wat, how have I never heard of this! Very cool. Do you have any insights you could share on your own setup, what worked well and what didn't? Are you just storing information in plaintext, or do you use some visualization libraries to make consuming the information a bit easier as well? Very curious about your setup.