Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Gamify Your Life - A Notion template pack to make work fun and get stuff done.
ClassicPress - The WordPress fork. No Gutenberg. Great future!
HabitScript - Gamify your coding time
TYPO3 - TYPO3.com - Infos, SLAs, Extended Support Versions and more
GetBadges - GetBadges is a gamification platform which allows developers to play and compete while using software development tools.