The RGB-Pi team has been hard at work on quite a few software updates lately, with three updates in the past few months! Installation instructions are here: http://www.mortaca.com/rgb-pi/wiki/index.php?title=OS_Installation
There’s a very long list of changes, fixes and additions, so head to the main wiki for all info: http://www.mortaca.com/rgb-pi/wiki/index.php?title=Changelog#RGB-Pi_OS_2_.28Final_1.3_20201011.29
For anyone unfamiliar, the RGB-Pi products offer either SCART, JAMMA or direct-wire interfaces to a Raspberry Pi, up to 3b+. While their hardware has always been great, I think their software is what really stands out and is currently my favorite of all the RPi custom images! Check out their site for more info: https://www.rgb-pi.com/