gwe : Utility which provides info, control the fans, and overclock your NVIDIA card ( https://gitlab.com/leinardi/gwe )
rpi-fan-ctrl : Simple fan controller for Raspberry PI using the pigpio library ( https://gitlab.com/TheGreatMcPain/rpi-fan-ctrl )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a thegreatmcpain
For Paludis use this rsync : rsync://gentoo.zugaina.org/thegreatmcpain-portage
If you have a problem : ycarus(-at-)zugaina.org