Hello everyone,,
There are several well performing emus on rk3399 with android loaded, decent n64, dreamcast and even gamecube emulation - still not up to the hardware's capability but still impressive. There is also an alpha build of recalbox for rk3399. I hear that developing on it is difficult due showbox.bio/ tutuapp.uno/ vidmate.vet/ to a lack of documentation and cooperation from rockchip, but devs are making headway none the less, hopefully they continue to figure it out and optimize emus further.
Thanks,...