I’ve been using openproject to take notes. I created a project for different areas of my life…then tasks and sub tasks. There’s a wiki, calendar, attach files, associate tasks with other tasks. Then when I’m through with a “project” like testing Nextcloud, I close that project. It archives so all the data and hides it so it’s not in my immediate view anymore but I can still reference it.

The free version supports ldap and 2fa. So it should fit in with Authentik or something similar for SSO.

I’ve found this pretty effective for much of my home lab work, especially for keeping track of applications I want to try. OneNote was getting too cluttered with old projects that I didn’t continue for one reason or another.

Look at nextcloud. It can be mapped to use existing file structure. Has plenty of plugins to do file management, file routing, ocr.

Sterling PDF might be a useful tool as well.