Decap CMS - Open source content management for your Git workflow
Netlify CMS - An open-source CMS for your Git workflow
Atuin - Sync, search and backup shell history with Atuin
Forestry - Business Tools, Support, Sales, and Marketing, and Self-Hosted Blogging / CMS
Redash - Data visualization and collaboration tool.
Cloud Cannon - Cloud Cannon turns Dropbox/Git-project into a CMS you can setup in seconds