I have been using Bookstack, I like it though it is missing a few features I would love:
- you cannot insert a video in it
- there is no possibility to comment on a particular text
- the permissions management is only done with roles. That’s fine generally but I wanted to be able to share a specific page with a specific user, and for that I had to basically create a dedicated role for this use.
The more it goes, the more there will be pressure on the Russian forces to divert their resources there. It seems to be a relatively cheap way for Ukraine to alter the whole battlefield, fighting where they are stronger.