Chmeta

What I built

• The game engine is a pure state machine with no React or React Native imports, and with a seeded RNG the same seed and actions replay the same game.
• Pass-and-play on one phone, fully offline, or online rooms that players join with a four-letter code over Supabase Realtime, with the host in charge.
• A redaction step keeps hands, deck contents and the RNG seed out of broadcast snapshots, and tests check for leaks.
• Every message is validated with zod when it arrives, and the host checks each guest request again for identity, phase and ownership.
• If the host drops, the oldest seated guest takes over and rebuilds the game from public state and private resync reports.
• A headless simulator runs a host and three guests over an in-memory hub, audits every broadcast, then runs a disconnect matrix.