airlift

Optical file transfer out of an air-gapped machine.

A beam shows a file as an animated QR loop; a phone relays what it sees to this tower, which reassembles, verifies and serves it. Nothing crosses the gap but light.

How it works

1BeamOn the air-gapped machine, airlift beam ./repo writes one offline HTML page that plays the file as a QR loop.
2ScanCreate a session here, open its link on a phone, tap Scan a beam and point the camera at the screen.
3ReceiveThe tower reassembles the chunks, verifies the sha256 chain, unpacks a repobundle and serves the download.

Read the docs

Get airlift sujaykumarsuman/airlift ↗

git clone git@github.com:sujaykumarsuman/airlift.git

git clone https://github.com/sujaykumarsuman/airlift.git

go install github.com/sujaykumarsuman/airlift/cmd/airlift@latest

curl -L -o airlift.zip https://github.com/sujaykumarsuman/airlift/archive/refs/heads/main.zip

Binary latest release ↗

macOS · Apple silicon macOS · Intel Linux · x86-64 Linux · arm64 Windows · x86-64

Clone and make airlift needs Go 1.26 + Node. Only the air-gapped machine needs the binary — the tower side is this site.