Pinry - Pinry is a private, self-hosted, Pinterest inspired by Wookmark and built on top of Django.
Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Exposure - Turn your pictures into art.
TYPO3 - TYPO3.com - Infos, SLAs, Extended Support Versions and more
ClanShot - Connect and share your pictures with the clan, here you can post and comment the shots of users or...
ClassicPress - The WordPress fork. No Gutenberg. Great future!