PTS2025

Dive into Delta Chat, Chatmail, webxdc apps and P2P realtime
2025-07-03, 09:30–12:30 (Europe/Paris), Room LW109

The Delta Chat decentralized instant messaging project has over the years evolved a rich ecosystem of distinct project areas, from instant onboarding with a versatile cross-platform messenger, over using chat-shared web apps with integrated Peer-to-Peer realtime messaging to participating with own Chatmail servers in the world-wide e-mail server network.

First, we onboard all participants on different Chatmail servers and get into a joint chat group and play around with the many features, answer and discuss questions and maybe play some games.

Second, we offer participants hands-on sessions:

  • setting up a chatmail server

  • writing a webxdc app

  • writing a chat bot

Holger is a long-time FOSS contributor. He is co-creator of the python testing tool "pytest", the PyPy project, and since about 10 years engaged in decentralized messaging research and development.
He is one of the co-creators of the Autocrypt and SecureJoin protocols, as well as one of the maintainers of the "Chatmail" project which explores new and more secure ways to run secure e-mail server networking.

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senior researcher at the Center for Internet and Society of the CNRS

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cyberpunk is now. they/them