Reticulum is a cryptographic networking stack designed for unreliable, low-bandwidth, high-latency links. Every node has a self-generated identity. Every packet is encrypted and authenticated. There are no central servers, no IP addresses, no DNS. A handful of LoRa radios is enough to bootstrap a working network across a field, a forest, a city block - or a camp ;)

In this workshop we build a small application on top of Reticulum and run it over LoRa hardware on site. We cover the core primitives: identities, destinations, links, and resources. We look at LXMF for store-and-forward messaging and at how to expose services that other nodes can discover and reach. Working examples are in Python, but the protocol is language-agnostic and the patterns translate directly to Rust or C.

Bring a laptop. Devices and radios are available for a fee (starting at EUR 20). Some prior programming experience is assumed; no radio background needed.

Also, worth a note, even though we will transport your apps during this session through radio frequencies, it is also possible to serve them through the Freifunk WiFi network, or the internet even after the workshop.