39c3; bitsundbaeume_aboutfreedom: 0.21; ccc: 2.0; chaos_jetzt: 0.9; cdc: 0.24; fnf: 0.12; free-knowledge-habitat: 0.13; haecksen-assembly: 1.4; music: 1.5; sharedtables: 1.0; spaetverkauf: 0.6; sgmk: 1.0; 2025-12-29 20:18:06.173598+00:0039c32025-12-27T10:00:00+00:002025-12-30T15:00:00+00:00400:10Europe/Berlinhttps://events.ccc.de/congress/2025/hub/https://events.ccc.de/congress/2025/hub/2025-12-28T14:00:00+01:0014:0001:00Matrix Assembly39c3-matrix-community-meetup_vazxen, deotherThe mandatory Matrix Community Meetup on 39c3 !Meet with the Matrix Community, learn about upcoming events, make friends with your admins, learn about Stammtischs in your hood and discover that one cool new project ! https://events.ccc.de/congress/2025/hub/https://usercontent.events.ccc.de/congress/2025/hub/usercontent/e/fceebc1a52f2/matrix-community-events-dark-bg_VfNf39J.pngThe one with the braid (she/her)https://events.ccc.de/congress/2025/hub/event/detail/matrix-community-meetup_vazxfalse2025-12-29T13:00:00+01:0013:0001:30Matrix Assembly39c3-communicate-with-governments-with-matrix-ama-aboutde, enotherMatrix als Kommunikations-Backbone für die Verwaltung "??!!"A Reality Check Between Ambition, Architecture, and Everyday Practice When a citizen wants to communicate with public authorities, the well-established classics are still available: fax, telephone, and email — supplemented by a growing number of inboxes, portals, and specialized messaging systems. Clarity is not exactly their defining feature. In Germany, FITKO, Saxony-Anhalt and Hamburg are attempting to bring some structure into this historically grown communication landscape through the ZaPuK project. The goal: fewer isolated solutions, more structure, more interoperability. (The fax is surprisingly persistent.) In this session, we take a sober, technical look at the following questions: * What can Matrix realistically deliver as a *general-purpose communication fabric* for public administration? * Where does the protocol fit well from an architectural perspective? * Where does it become interesting? * And where does theory collide with federal realities, domain-specific processes, and operational models? We discuss the current state of projects, discussions, and recommendations followed by an honest reality check. No marketing. No promises of salvation. But plenty of room for critical questions. Links: * https://gitlab.opencode.de/it-planungsrat/fit-ab/zapuk * [https://netzpolitik.org/2025/verwaltungsdigitalisierung-arbeitsgruppe-empfiehlt-matrix-protokoll-fuer-behoerdenkommunikation/](https://netzpolitik.org/2025/verwaltungsdigitalisierung-arbeitsgruppe-empfiehlt-matrix-protokoll-fuer-behoerdenkommunikation/) * [https://www.digdir.no/standarder/verdens-programvare-star-pa-skuldrene-til-apen-kildekode/7195](https://www.digdir.no/standarder/verdens-programvare-star-pa-skuldrene-til-apen-kildekode/7195) * [https://gitlab.opencode.de/fitko/matrix-g2x/](https://gitlab.opencode.de/fitko/matrix-g2x/) Yan 't' Minagawahttps://events.ccc.de/congress/2025/hub/event/detail/communicate-with-governments-with-matrix-ama-aboutfalse2025-12-29T17:00:00+01:0017:0000:56Matrix Assembly39c3-inofficial-sailfishos-user-meetupen, deotherDifferent SailfishOS users meeting up and chatting Anyone welcome, even people who are just interested in SailfishOS.deepbluev7https://events.ccc.de/congress/2025/hub/event/detail/inofficial-sailfishos-user-meetupfalse2025-12-29T23:00:00+01:0023:0001:00Matrix Assembly39c3-promoting-homeservers-outside-the-default-matrixorenotherMany client apps funnel their users signing up towards to matrix.org homeserver out of simplicity for the onbparding UX, meaning the decentralized public Matrix network practically has a big concentration on one server. In this session we explore what the Matrix Foundation could do to counter this effect.HarHarLinkshttps://events.ccc.de/congress/2025/hub/event/detail/promoting-homeservers-outside-the-default-matrixorfalse