airgap

A mesh that shares work over sound — no fetch WebSocket RTC socket anywhere. Architecturally incapable of touching the internet. Unhackable over the wire — because there is no wire.

the security invariant — checkable, not asserted

mesh channelmicrophone + speaker only (air) network calls made by the mesh0 — and it stays 0 works with wi-fi off?yes — try it. there is no network code to fail. honest scoperemoves the network attack surface. does NOT stop someone in the room with a mic (acoustic eavesdrop/inject) or a compromised host. the wire is gone; the room isn't.

§1 · self-test — a message becomes real audio, then is heard back (no mic, no network)

Renders the tones to actual PCM audio and demodulates them with a Goertzel filter bank — proving the acoustic modem end to end, right here.

idle

§2 · transmit — broadcast work into the room, out loud

§3 · listen — hear the room, decode, and answer the work by air

auto-answer work mic off

Two devices? Open this on both, transmit from one, listen on the other — they share work with nothing between them but air. On one machine, the speaker→mic loopback works too (headphones off).