I love bookstack for quick brainstorming, organizing my own docs, notes about projects, great stuff, it even has a DIA editor alternative right ootb, so I don't have to anymore manage DIA files and do screenshots to import into docs / notes, they are live editable too, where as in the past I had to find the DIA file, edit it, re-screenshot, ..

Just wish it had one subchapter more, since I am migrating from other services that have infinite nesting haha

https://www.bookstackapp.com/