syncMNFST: Real-time setlist sync for live bands

Hey Product Hunt 👋 I'm Bas — a working musician (bass, bands of all shapes) and a developer. syncMNFST is me scratching my own itch. The problem: I've been on stage too many times where the band leader calls an audible mid-set, and the next 20 seconds turn into chaos. The singer flipping pages looking for lyrics. The horn player searching for the right chart. The drummer not sure what tempo we're going at. By the time everyone's ready, the moment's already gone — and the audience felt it. Existing tools (BandHelper, OnSong, Set List Maker) all solve adjacent problems — but none of them treat real-time multi-musician sync as the core feature. They're built for one musician with one screen. We perform as bands. So I built syncMNFST around one idea: one tap by the leader = every musician's iPad instantly switches to their own part. Lyrics for the singer. Score for the horn player. Chord chart for the guitarist. All synced over local network — no WiFi, no per-musician subscription. This is pre-launch — waitlist is open at syncmnfst.com. Building in public, talking to working musicians (cover bands, wedding bands, jazz combos, function bands). If you've ever been on stage when an audible got called, I'd love to hear your war stories. Cheers, Bas