+ ♚
+ Question one
+ What is MateMate?
+ An all-Swift chess stack: a SwiftUI iPhone app, a hand-written engine, and a Vapor
+ multiplayer server that share one package — so the client, the server, and the wire can
+ never disagree about what chess is.
+
+ - ♔ The server is authoritative — every online move is checked before it counts
+ - ♖ One wire protocol, compiled into both app and server
+ - ♘ A deterministic engine, testable down to exact node counts
+
+ Explore the architecture →
+
+ ♞
+ Question two
+ How was it built?
+ By a fleet of concurrent Claude sessions sharing one repository. They claim work before
+ starting it, build in isolated worktrees, and let exactly one session press merge — so
+ nine writers move fast without overwriting each other.
+
+ - ♙ Claim before you build — a four-way check that the work is free
+ - ♜ Isolated worktrees, so no two sessions share a working copy
+ - ♔ One merge authority, and a gate every change has to pass
+
+ See how the agents talked →
+