ProjectPier.org : ProjectPier is a Free, Open-Source, PHP application for managing tasks, projects and teams through an intuitive web interface. It must be downloaded a...
Karakeep : A self-hostable bookmark-everything app (links, notes and images) with AI-based automatic tagging and full text search
YunoHost : YunoHost is a server operating system aiming to make self-hosting accessible to everyone.
GitPrep : GitPrep is Github clone. you can install portable github system into unix/linux. You can create users and repositories without limitation.