Docmost

Docmost is an open-source collaborative wiki and documentation platform, a self-hosted alternative to Confluence and Notion. It supports real-time collaborative editing, nested pages, spaces, permissions, diagrams, and full-text search.

Runs on PostgreSQL and Redis, both wired automatically. After deploy, set the APP_URL env to your deployed domain (it defaults to a localhost placeholder) and restart, then open the app to create the first admin workspace and account. Uploaded files persist at /app/data/storage.

Source: GitHub