I love Nextcloud, but the biggest issue for me is the lack a wiki/sites app. I need something that makes use of the sharing facility among groups and circles, but for pages/sections of an intranet. It also needs to be easy for users to create new pages on the fly. PicoCMS and Tiddlywiki are good but don’t really fit the aforementioned use case.
https://docs.requarks.io/wiki looks ideal!?