Small toy projects that I occasionally delve into are hosted here. Although all of them are fulfilling their purpose there are quite rough around the edges and would definitely need some testing.
Adaptive fan control for NVidia cards on Windows and Linux
nvfancontrol is a program used to manipulate the fan speed of NVidia GPUs depending on the temperature. It should support all GPUs from GeForce series 4xx and up. It is tested on Windows and Linux, but should work on FreeBSD as well (testers welcome!)
Archlinux update monitoring daemon
pkgupd is an update monitoring daemon for Archlinux repositories as well as the AUR. It will monitor official and user repositories for updates of your installed packages without touching your pacman database.