minir is a libretro frontend intended to complement RetroArch, by focusing on the usecases RetroArch is not focused on. (If RetroArch catches up to minir on all meaningful features, minir will be declared obsolute.)
| RetroArch | minir ----- | ----- | ------ Prefered setup | HTPC in fullscreen; many others supported | Desktop computers, windowed mode Input method | Preferably a controller (DualShock, Xbox, etc); use with keyboard and mouse is awkward | Keyboard and mouse, controllers not supported (yet) Menus | Custom | System native Core support | Full (limited by system hardware) | Limited (currently) Automatic core selection | ? (it's been mentioned) | Yes Major features | Real-time rewind, Dynamic Rate Control, user-defined shaders, netplay, low-latency fullscreen, ... | Real-time rewind, maximally configurable hotkeys, (more to come) (Note that this table is based on the minir author's views; the RetroArch authors' views may differ.)