Support for the #Valve #SteamMachine under #Linux has been merged into #OpenRGB. This relies on the leds-valve kernel module that is included in the SteamOS kernel. A DKMS package is available to install this kernel module on #Arch and #Debian distros: https://gitlab.com/CalcProgrammer1/leds-valve-dkms or AUR leds-valve-dkms-git