Theme
Conference my congress Visitors
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Schedule

Theme
Der Hub wird spätestens Ende Januar archiviert, alle nutzerbezogenen Inhalte, Boards und auch einige Wiki-Seiten werden dabei entfernt. Alle öffentlichen Assemblies, Projekte und Veranstaltungen bleiben. // The hub will be archived by end of January. All user-provided content, boards and several wiki pages will be deleted. All public assemblies, projects and events will remain.
Schedule
all curated only assembly only self_organized only
Day 1 Day 2 Day 3 Day 4
recorded only not recorded only
Tracks
CCC & Community Hardware Security Art & Beauty Ethics, Society & Politics Science Live Performance DJ-Set Entertainment

 

Day 4
10:00

10:30

11:00

11:30

12:00

12:30

13:00

13:30

14:00

14:30

CDC Triangle
Welcome to the last CDC day (en)

Diego Salazar

What went on and what is coming next.
NextGraph Demo: Local First, E2EE, RDF graph DB, and a Reactive ORM SDK (en)

Laurin Weger

[NextGraph](https://nextgraph.org/) is a framework aimed at making live collaboration, offline support, end to end encryption, and application interoperability easy. In this demo, I will walk you through the basics of NextGraph and our new TypeScript SDK. The new TypeScript SDK turns RDF graph database records into ordinary, typed objects with instant two‑way binding. By proxying those objects and emitting signals, the SDK provides a framework‑agnostic reactive layer that integrates cleanly with React, Vue, and Svelte. **You will** get a short introduction to NextGraph, RDF (a graph data format designed for interoperability), and a live demo walking through a simple property change, showing how a mutation is instantly persisted to the database, syncronized, and reflected in UI components across React, Vue, and Svelte.
SeedSigner DIY Bitcoin signing device build workshop (en)

freerk

Build your own open-source Bitcoin signing device with a Raspberry Pi Zero, camera and display! We have kits for 45€
Whats new in Reticulum (en)

fluorescent_beige, Liam

We will give a brief introduction to the Reticulum Network Stack and announce what is new in 2025: - Reticulum will soon be available in Rust, which will allow users of embedded systems a better performance. - The new Reticulum BLE Interface enables the creation of autonomous mesh networks without any further hardware or central server. The interface can be used on Linux and Android. - The Columba App for Reticulum lowers the barrier of entry for using Reticulum.
Solidarity Finance on P2P Rails (en)

Joshua Davila

What would it look like to build financial infrastructure for solidarity rather than speculation? While blockchain technology has largely been captured by libertarian and extractive market logic, it certainly does not need to be that way. In this talk, we'll explore Solidarity Primitives, development and architectural design patterns designed to forge economic solidarity between individuals and collectives. Drawing from our work at Bread Cooperative and research I've documented through my podcast, The Blockchain Socialist, we'll examine concrete examples like the BREAD community token, savings circles implementation, and the Solidarity Fund mechanisms that enable participatory funding without relying on venture capital or traditional financial intermediaries. We'll discuss how these primitives address a critical gap: the technical and coordination barriers that have historically made alternative economic models difficult to implement at scale. From worker cooperatives to mutual aid networks, the infrastructure simply hasn't existed. Peer-to-peer technologies can change that but only if designed with solidarity, not profit maximization, as the core principle. This talk is for anyone interested in the practical dimensions of building a post-capitalist economy: what does it actually look like to write code for collective autonomy? How do we ensure decentralized systems serve communities rather than concentrating power?
Who's afraid of anonymity? A philosophical and political toolkit (en)

Casey Ford

Online anonymity is being demonized and undermined. But anonymity has an important social function for preserving individuals and group against social threats. We will argue for the philosophical and political value of being anonymous, especially against the rising state of capture in state and corporate surveillance. Anonymity is more than namelessness: it's a tool of resistance.
Mutual Vend - decentralized coop vending machine (en)

Ron Turetzky

Mutual-vend.com - smallest self contained coop decentrally owned and operated infra