Cross-platform P2P chat in C for POSIX (Linux/macOS) and Classic Mac (System 7.x). Dual network stacks (MacTCP & OpenTransport), native Mac GUI, JSON machine mode, Docker testing, Retro68 cross-compilation. 14K lines bridging modern and vintage computing.
c chat docker tcp cross-platform udp peer-to-peer p2p posix socket-programming 68k retro-computing opentransport retro68 classic-mac macintosh-se system7 mactcp
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Updated
Oct 15, 2025 - C