I have ‘flashed’ the SNES Mini with new firmware. Hakchi 2 CE. And put some new games on it. One of them Doom, which was an (ported) arcade game in the early Nineties. All these retro consoles run on Linux and are thus subject to the loving attention of the open source community. It’s just incredible! There are still some issues that have to be ironed out but the foundation is there. All this tinkering takes me back at least 25 years and I like it