libretro is an API that exposes generic audio/video/input callbacks. A fron tend for libretro (such as RetroArch) handles video output, audio output, input and application lifecycle. A libretro core written in portable C or C++ can run seamlessly on many platforms with very little to no porting effort. While RetroArch is the reference frontend for libretro, several other proje cts have used the libretro interface to include support for emulators and/or ga me engines. libretro is completely open and free for anyone to use. To download and install more libretro cores please read included README.Fed ora file: $ xdg-open /usr/share/doc/retroarch/README.fedora.mdRead More