Been looking for a good Notion replacement and started playing with AnyType. Unfortunately, syncing via NextCloud doesn’t work very well due to the more complex data structure (It’s not just markdown files, and that’s fine). I thought I’d self-host their sync service, but it requires MongoDB which doesn’t support RaspberryPi’s architecture 🙁

So.. back to trying to find a good alternative. Let me know if you've found something like!

#FOSS 

 Outline or Wiki js could be worth a look.
Otherwise selfh.st got more alternatives here:
https://selfh.st/alternatives/notion/