Presented at
DEF CON 33 (2025),
Aug. 8, 2025, 9 a.m.
(45 minutes).
Introducing RETCON: a game-changer for mesh network users who prefer deployment over drudgery. Reticulum offers a scalable, fully customizable, and secure-by-design off-grid mesh network, but the config can be confusing, hard to manage, and hard to share with beginners. RETCON allows you to package a pre-made Reticulum config into ready-to-roll Raspberry Pi images. And it auto-detects hardware to magically mesh upon deployment. Perfect for when you need a secure resilient mesh network yesterday, like maker fests, festivals, community networks, or right here at DEFCON.
Presenters:
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Daniel "Varx" Beard
Daniel is a software engineer and entrepreneur specializing in medical device cybersecurity. He founded MedISAO and Cyberprotek, both acquired by MedCrypt in 2020. In his spare time, he likes to contribute to FOSS tools and tinker with embedded electronics.
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