airchat

We have hosted the application airchat in order to run this application in our online workstations with Wine or directly.

Quick description about airchat:

AirChat is a proof-of-concept communication system that works without the internet or cellular networks, using audio over radio links to move messages between nodes. It couples a lightweight packet format with asymmetric keys to enable addressed delivery, optional end-to-end encryption, and anonymous broadcast when encryption is disabled. The software talks to modem software such as FLDigi via XML-RPC, letting one machine handle radio I/O while others run the AirChat service, and it can also ride any device capable of transmitting audio, including low-cost handheld radios. The design intentionally trades bandwidth for freedom, resilience, and low cost, prioritizing operation during blackouts, disasters, censorship events, or remote expeditions. Gateways allow a participating node with connectivity to bridge traffic to limited internet services like news fetching or posting updates, optionally through Tor and proxy support.

Features:

• Works over audio and commodity radio transceivers, no internet required
• Optional encryption and addressing via asymmetric keys, plus open broadcast
• Modular modem layer with FLDigi control over XML-RPC
• Built-in gateway options for tweeting, news retrieval, and proxies/Tor
• Suited for disaster response, protests, remote regions, and expeditions
• Cross-platform scripts and setup guides for Linux, Windows, macOS, FreeBSD

Programming Language: Perl.
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