This is the demo from this github repo: <a href="https://github.com/PennyroyalTea/gibberlink">https://github.com/PennyroyalTea/gibberlink</a>.<p>The encryption sheme is described in this link: <a href="https://github.com/ggerganov/ggwave">https://github.com/ggerganov/ggwave</a><p>> This library allows you to communicate small amounts of data between air-gapped devices using sound.