Alternatives to apps like DEVONthink for shared note taking and databases?

Recently DEVONthink just priced itself out of the ballpark for me with new license tiers. I’m hunting for a replacement that has integration with NextCloud.

Anyone know of any workable options?

I haven’t seen any with Nextcloud integration, sorry. I’ve been following along the development of Bookstack, which is FOSS. But it’s still early days. Looks nice though.