Fellow Espresso Series 1

Doom running on the circular display of a Fellow Espresso Series 1 espresso machine, demonstrated by Reddit user FullExtraction. The machine’s existing controls are used to play: the scroll wheel turns the player, the brew button moves forward, and the steam button fires. According to the creator, dying returns the machine to its regular firmware. A follow-up demonstration shows the whole machine and an updated display layout adapted to its circular screen.