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Developer uses LLM to reverse-engineer iChat's SNATMAP protocol, restoring old Mac video calls

1 report1 sourceupdated 3 hours ago

What happened

AI digest

On October 6, a Hacker News front-page post described a project that brings back iChat audio and video calls. The developer used a large language model to reverse-engineer iChat's SNATMAP protocol and built a UDP server from it. With matching edits to /etc/hosts, old Macs running Leopard or Snow Leopard can connect to each other again for iChat audio and video calls. The post shows this self-hosted server plus host-file changes already restore calling on those systems.

Written by AI from the coverage · updated 2 hours ago

LatestOct 6 11:39
A developer reverse-engineered the SNATMAP protocol with an LLM and a self-built UDP server to restore iChat audio and video calls on old Macs.

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Oct 6
  1. Hacker News front page
    Resurrecting iChat Audio and Video Conferencing

    开发者通过 LLM 逆向工程 iChat 的 SNATMAP 协议，自建 UDP 服务器并修改 /etc/hosts，让运行 Leopard 或 Snow Leopard 的老 Mac 重新实现 iChat 音视频通话。

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