GammaOS Custom Firmware - v1.5.1
GammaOS Custom Firmware - v1.5.1
github.com
Release Anbernic RG405M/RG405V/RG505 - GammaOS Custom Firmware - v1.5.1 · TheGammaSqueeze/GammaOS
It's released, so many QoL improvements! If you using RG405M/RG405V/RG505, I would highly recommend to install.