I’ve been having a lot of fun building Docking, an open-source dock for Linux written in Python with GTK 3 and Cairo. It includes an extensible applet system, 38 built-in applets, 12 themes, multi-monitor support, auto-hide, and works across several Linux/X11 desktop environments.
It also has prebuilt releases for x64 and arm64 across multiple package formats: AppImage, .deb, RPM, Flatpak, Snap, Arch, and Nix outputs.
GitHub: https://github.com/edumucelli/docking
Feedback is very welcome!