Do you like first-person shooters? Did you know the grandfather of every modern FPS is MIDI Maze, a 1987 Atari ST game? MIDI Maze invented network deathmatch. Up to 16 STs chained their MIDI ports into a ring (each machine's MIDI OUT into the next machine's MIDI IN) and shot at each other in real time. No PC, no LAN card, just a row of Atari STs and a pile of MIDI cables. A genre was born. Today, the new MIDI-to-IP microfirmware for the SidecarTridge Multi-device puts that ring on your home Wi-Fi. The cartridge bridges the ST's MIDI to a small Python orchestrator on the LAN, and the orchestrator relays each node's traffic to the next node in the ring. Up to 16 players share the ring, mixing real Atari STs and Hatari emulators freely. Private rooms let several rings run on the same orchestrator. MIDI-to-IP is also a public reference for AI-assisted SidecarTridge microfirmware development. The full iteration backlog (epics, stories, decisions, the orchestrator wire contract) lives in docs/epics/ inside the repo, committed to git as a working example of how an agent owns a microfirmware end to end. Install it from the Booster app catalog. Fire up MIDI Maze. Bring your ring online. docs.sidecartridge.com/sidec…