I created some apps I needed myself:

• git-confed - Edit .git/config with predefined blocks
• HomeLists - Count consumable supplies
• LinuxExecBot - Telegram bot to execute a command from a configurable list (No Docker for this one)
• miniboard - Lightweight dashboard with tabs, uptime monitoring and notifications
• ReDiary - Emotional resource diary
• WatchYourLAN - Lightweight network IP scanner with web GUI

I like wikidocks, it has a built in editor

https://github.com/Zavy86/WikiDocs