

I have been looking at Saltcorn for this purpose, and it seems quite interesting. I can’t verify it or vouch for it, however.
If I had more time, I would love to play with it and try and build things. But I am pretty busy. So I am also looking at replacing my specialized CRM with something open source and self-hosted.
It’s not pretty, but I will probably settle on Dolibarr as it’s non-American, comprehensive, and there are docker implementations.
Edit: rereading your use case, I think you should look harder at Dolibarr as it is FOSS, widely used, and comprehensive but you can disable what you don’t need. Save your team the development time.
ADHD: functional notes in abbreviated version on fat strips of painter’s tape on server case or shelf. Passwords go on page dedicated to that server or service in a little black notebook, then eventually in a password manager.
Readme file if my brain lets me, usually 3 months later after hyperfocus on troubleshooting.