Matrix Community Summit 2025 Berlin
July 31 – August 3 · c-base · Berlin
Matrix is more than a protocol – it's a social, technical, and political project. It needs places where people can meet, exchange ideas, build software, and strengthen the community.
In a world increasingly dominated by a few Big Tech players, decentralization is not just a technical feature – it's a necessity. A connected planet deserves open protocols, community-driven infrastructure, and people who care about building a better future together.
Who Is It For?
The Matrix Community Summit is open to:
- 🧑💻 Developers
- 🧑🎨 Designers
- 🛠️ Admins & Maintainers
- 📢 Activists
- 🙋♂️ Curious users and power users
If you work with Matrix – or want to – this is for you. Whether you're presenting a new project, debugging something in person, or dreaming up the next big thing – come and be part of it.
Join the conversation early in or Matrix space!
Looking Back: 2022 & 2023
In 2022 and 2023, the Matrix Community Summit took place in Berlin as a fully independent, community-organized event – open, experimental, and collaborative. We shared ideas, built prototypes, discussed hard problems, and explored the possibilities of federated communication. Read some of the vibe.
2024: Embedded – and now independent again
In 2024, we were part of the official Matrix Conference – large, professional, inspiring. But in 2025, we're going back to our roots: No trade fair. No product booths. No audience.
Instead, an open and flexible schedule made by the people who show up. Every participant is encouraged to propose at least one session – a talk, a workshop, a hackathon, a brainstorm, a walk-and-talk, or anything in between.
Tickets & Swag
Ticket sale has started! While the summit itself runs on volunteer effort, your ticket helps cover t-shirts, snacks, and drinks throughout the event.
Participation in the summit is open, but please register in advance so we can plan accordingly.
Food and drinks will be available at the c-base, and we'll organize light communal catering where possible. Contributions welcome!
A truly unique shirt option is available now, but only until July 15, 2025. Get yours via the ticket shop before it's too late!
Format & Sessions
Sessions can take many forms – from short lightning talks to full-day workshops or all-night hackathons. The venue will be open 24 hours – ideal for deep dives, spontaneous sessions, or late-night breakthroughs. On Thursday and Friday, you’re also welcome to co-work from the c-base during the day – so you can get your day job done remotely and still spend your evenings immersed in the Matrix community. Please note: there are no sleeping arrangements on-site, so plan your accommodation accordingly. See Sleepover Sync Room.
Participation & Recording
Most sessions will not be recorded – if you want to take part, you need to be there in person. We do plan to record a few on-stage discussions and deep dives, and we're still exploring creative formats to capture the vibe and message of MCS25 and beam it out from c-base to the world. Got ideas? Let us know in the Matrix room!
Extend Your Experience: Before & After Workations
Want more time to work and connect with the community? Join our Matrix Workations at the Black Pony Club in Krems (Austria):
Before the Summit: 🗓️ July 19–29 A relaxed co-living and co-working space to warm up for MCS25. Transfer to Berlin will be organized.
After the Summit: 🗓️ August 4–17 Decompress, code, dream, and build – together. Transfer from Berlin and to FrOSCon will be arranged.
More info and coordination in the Matrix room!
Can't afford to come?
Try harder 😉 If financial reasons are the issue – get in touch. We may be able to help. There's a sleepover coordination room for couchsurfing and hotel sharing, and we're working to secure some travel budget for community contributors. Reach out to the orga team in the Matrix room!
Can't come at all?
No worries – we'll be around: Some of us will attend FrOSCon, the Matrix Conference in Strasbourg, and the Chaos Communication Congress. Or reach out to the Matrix Foundation Events Working Group – they can help you run your own local meetup or event.
If you're looking for a conference focused on Matrix products, updates from companies and institutions working on and with Matrix, or want to help shape how the protocol is used in large organizations, nationwide deployments, or international federations, please consider attending the Matrix Conference in Strasbourg later this year.
Location: The c-base, Berlin
We're gathering at the legendary c-base – a space station under Berlin, a hackerspace, a future lab, and a home for radical imagination and technical tinkering. It's the perfect place for federation, open infrastructure, and decentralized dreams.
Participate & Support
The Matrix Community Summit is not a commercial event – there are no booths, no product talks. Instead, we offer sponsorship packages for organizations that want to support the event and help keep it grassroots and independent.
Want to join? Propose a session. Bring your project. Share your knowledge. Let's build together. There is a pad already set for coordination. Coordinate and ask questions in the Matrix room.