GarlicOS 2.0 (Public Alpha) | Black-Seraph
It's a Linux-based firmware for RG405M RG405V and RP2+. There is not HW acceleration for now, but the author managed to make audio working (it's quite hard for UNISOC chips!). It would be so great to have fully working Linux-based operating system on these devices!
That is awesome, when the 405m was released most did not think a Linux based firmware would be possible. Love how this community keeps working and improving the devices for everyone. Truly a golden age of retro gaming!