Mostly TTRSS with a bit of DokuWiki, Etherpad, and Davros. I was using Radicale but wanted more email/calendar integration, and I was using the WordPress app for my local hackerspace but its static site generation took too long for our very large website.
I've been looking at the WordPress package lately and I definitely think there is room for improvement. For one, publishing seems to create a complete duplicate copy of all of the media, which is super painful for large sites.
Yeah - that and the lack of feedback when generating the static files. It's fine when it's a small site and generation finishes ~immediately, but when it's going to take a while it'd be helpful to have some indication that things are happening and when they finish.