BEGIN:VCALENDAR VERSION:2.0 PRODID:-//39th Chaos Communications Congress//events in SoS Lecture E CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:events in SoS Lecture E BEGIN:VEVENT SUMMARY:Hack Your Brain Part 1 DTSTART:20251227T100000Z DTEND:20251227T112000Z DTSTAMP:20260511T210907Z UID:0b9c0d94-d075-4689-8ff5-e40a640a6d97 CATEGORIES:official DESCRIPTION:Wie funktioniert dein Gehirn wirklich – und wie kannst du es gezielt steuern?\n\nIn diesem Talk erfährst du\, wie dein Nervensystem u nd dein Gehirn aufgebaut sind\, wie du Stress wirksam regulierst und wie S chlaf deine mentale Leistungsfähigkeit\, Emotionen und Gesundheit bestimm t. \n\nZusätzlich erhältst du konkrete neurobiologisch fundierte Tools z ur direkten Anwendung im Alltag.\n\nFür alle\, die ihr Gehirn nicht dem Z ufall überlassen wollen. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/hack-your-brain-p art-1 END:VEVENT BEGIN:VEVENT SUMMARY:Hack Your Brain Part 2 DTSTART:20251227T113000Z DTEND:20251227T125000Z DTSTAMP:20260511T210907Z UID:438ef49e-21f8-4f13-8607-27ef6612ef23 CATEGORIES:official DESCRIPTION:Warum fällt es uns schwer\, konzentriert zu bleiben – und w ie lässt sich Aufmerksamkeit gezielt trainieren?\n\nIn diesem zweiten Tei l geht es um die neurobiologischen Grundlagen von Fokus\, Aufmerksamkeit u nd Lernen. Du erfährst\, wie dein Gehirn Informationen auswählt\, speich ert und langfristig verfügbar macht – und warum Ablenkung\, Multitaskin g und Reizüberflutung diese Prozesse messbar beeinträchtigen.\n\nZusätz lich erhältst du konkrete\, wissenschaftlich fundierte Werkzeuge zur Verb esserung von Konzentration\, Lernfähigkeit und mentaler Klarheit im Allta g. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/hack-your-brain-p art-2 END:VEVENT BEGIN:VEVENT SUMMARY:Demokratische Schule - Die radikalste Schulart\, die es gibt DTSTART:20251227T130000Z DTEND:20251227T142000Z DTSTAMP:20260511T210907Z UID:e34208c7-7884-4115-8b5c-3313919875a9 CATEGORIES:official DESCRIPTION:Eine Schule in der Lehrer und Schüler über sämtliche Schulr egeln gleichermaßen mitentscheiden. Eine Schule in der die Schüler kompl ett frei sind\, in dem was sie lernen?\nKann das funktionieren? Wie gehts den Kindern nach der Schulzeit und was heißt das für Eltern?\n\nIch bin Schulgründer einer Demokratischen Schule und präsentiere euch anschaulic h mit vielen Grafiken\, Videos und ein paar Studien\, wie das bei uns so l äuft. Im Anschluss könnt ihr mir und einem Elternteil eines Schülers Fr agen stellen. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/demokratische-sch ule-die-radikalste-schulart-die-e END:VEVENT BEGIN:VEVENT SUMMARY:Gewaltfreie Kommunikation DTSTART:20251227T143000Z DTEND:20251227T152000Z DTSTAMP:20260511T210907Z UID:7da06233-af37-499f-9f15-6df8d3c0d338 CATEGORIES:official DESCRIPTION:In diesem Workshop lernst du die Grundlagen der Gewaltfreien K ommunikation (GFK) nach Marshall Rosenberg kennen. Du erfährst\, wie du d eine eigenen Bedürfnisse klar ausdrückst\, die Bedürfnisse anderer vers tehst und Konflikte konstruktiv lösen kannst.\n\nMit praxisnahen Übungen und Werkzeugen trainierst du\, empathisch zuzuhören\, Missverständnisse zu vermeiden und Beziehungen – beruflich wie privat – nachhaltig zu v erbessern. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/gewaltfreie-kommu nikation END:VEVENT BEGIN:VEVENT SUMMARY:anders streiten lernen DTSTART:20251227T153000Z DTEND:20251227T165000Z DTSTAMP:20260511T210907Z UID:a4fe2316-1322-40e7-beed-96ab8a237fd3 CATEGORIES:official DESCRIPTION:We live in times of intense conflicts and their violent escala tion. One of the central theses of Jalka's work is that a viable democracy and a conscious culture of constructive conflict resolution go hand in ha nd.\n\nCultivating this ability requires a conscious decision to engage wi th individual\, collective and societal patterns of dispute behaviour and conflict management. Starting with oneself\, as well as in our interaction s with others\, in public discourse and in our behaviour towards others. W ith a willingness to change something in order to reduce\, and in the best case even prevent\, the suffering and violence that can potentially arise from conflicts. And to learn from this for the future. \n\nWhat exactly w ill this SOS session be about? \n\nWe will engage in a number of exercises and discussion rounds based on the following questions:\n\nHow do you dea l with conflicts? How do others deal with conflicts? How do you experience conflicts? What exactly are conflicts? What dynamics promote conflicts? W hat patterns are there in place? How can we deal with conflicts constructi vely? How do conflicts caused by individual\, interpersonal and structural factors differ? And: How can conflict management be designed to be sensit ive to discrimination? \n\nI will share with you my experiences from my wo rk as a mediator and from past workshops I have held on this topic. In add ition to exercises\, I will also bring along some literature for further r eading.\n\nPlease feel free to bring your own questions and insights to th e session so that we can all learn from and with each other. I look forwar d to seeing you. \n\nin parts translated with DeepL.com (free version) LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/anders-streiten-l ernen END:VEVENT BEGIN:VEVENT SUMMARY:Einführung Löthelfer*innen DTSTART:20251227T171500Z DTEND:20251227T181500Z DTSTAMP:20260511T210907Z UID:8e73840b-c4ae-4aa7-bb51-2bc8088ab1a9 CATEGORIES: DESCRIPTION: LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/einfuhrung-lothel ferinnen END:VEVENT BEGIN:VEVENT SUMMARY:Legale\, Halblegale und andere Tricks um ohne Geld durch die Welt zu kommen DTSTART:20251227T183000Z DTEND:20251227T192000Z DTSTAMP:20260511T210907Z UID:64bf122a-c2bd-4ae3-9ce1-8445718fe546 CATEGORIES:official DESCRIPTION:Von Tricks zu bekannten Klassikern wie Containern\, über eher unbekannte Geheimnisse\, wie den Häppchenmelder und Gesundheitsversorgun g für den Kampf im Untergrund\, drehen wir. Hier gibt's eine gute Übersi cht über das Leben zwischen Existenz-Minimum und Schabernack-Maximum.\n16 :04 LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/legale-halblegale -und-andere-tricks-um-ohne-geld-d END:VEVENT BEGIN:VEVENT SUMMARY:GI Meet-up DTSTART:20251227T193000Z DTEND:20251227T202000Z DTSTAMP:20260511T210907Z UID:66fb7a56-931b-4ed9-8265-193a9d2acff2 CATEGORIES:official DESCRIPTION:Hey\, you're here too?\n\nWe are organising an informal meet-u p for GI members\, friends and anyone interested in the field of chaos.\n\ nThe German Informatics Society (GI) is a network of computer scientists c ommitted to digitalisation that works for everyone. With more than 17\,000 individual and 250 corporate members (from academia\, business\, administ ration and civil society)\, it is the largest professional association for computer science in the German-speaking world and has been representing t he interests of computer scientists since 1969. With 14 specialist areas\, over 30 active regional groups and countless specialist groups\, the GI i s a platform and mouthpiece for all disciplines in computer science. GI me mbers drive the discipline forward\, ask crucial questions and constantly provide new impetus. For computer science that is oriented towards the com mon good\, inclusive and forward-looking. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/gi-meet-up END:VEVENT BEGIN:VEVENT SUMMARY:hacking medical research for a better transition -- war stories fr om the backrooms of estrannai.se & co DTSTART:20251227T203000Z DTEND:20251227T205500Z DTSTAMP:20260511T210907Z UID:dfa6ea5f-5da5-43a8-b66e-82af906f274d CATEGORIES:official DESCRIPTION:While medical institutions struggle to fill trans people's nee ds for a medical transition\, an increasing number of trans people resort to managing their hormonal transition on their own. Alongside this\, the D IY community has amassed a large amount of both theoretical and applied me dical knowledge\, matching and sometimes even surpassing researchers in th e field.\n\nIn this talk\, I will point out what's right and wrong with in stitutionalized trans research\, give insights into the DIY communities' p ragmatic approach to community healthcare and show what we're doing to tur n lay expertise and even anecdotes into evidence-based medical research -- all without a doctor involved. "all creatures welcome" -- all necessary s cience-prerequisites are included along the way.\n\n---\n\nIf you enjoyed this talk (or not)\, or if you missed it (or not) -- I will do a speedrun attempt of presenting the same material in under 4.5 minutes on Day 4:\n[h ttps://events.ccc.de/congress/2025/hub/en/event/detail/speedrun-hacking-me dical-research-in-under-45-minu](https://events.ccc.de/congress/2025/hub/e n/event/detail/speedrun-hacking-medical-research-in-under-45-minu) LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/hacking-medical-r esearch-for-a-better-transition END:VEVENT BEGIN:VEVENT SUMMARY:Effizientes Finanzmanagement für alle - Über den nachhaltigen Um gang mit Geld DTSTART:20251227T210000Z DTEND:20251227T215000Z DTSTAMP:20260511T210907Z UID:2cfcd8a5-45be-4750-9a1a-952f7be58b15 CATEGORIES:official DESCRIPTION:Event NOT in english language - sorry.\n\nThis is no "how to g et rich fast" talk.\n\nThis Talk is about the HOW of efficiently handling money.\nI want to give you the means to decide yourself\, what risks to ta ke and what investments to make.\n\nMost of my Information is from my Econ omic Computer Sciences Bachelors degree (mainly the economics part)\nTopic s will be: How to calculate investments\, how to calculate (expected) inte rest and compound interest\, how to "sort" your debt to efficiently pay it off.\n\nAfter my nerdy maths lecture\, there will be time for questions a nd topics you are interested in. (Still under SoS Rule: No commercial adve rtising or crypto shilling)\n\nI did a similar SoS last year\, this year w ill even be with slides.\n\nUnfortunately\, this talk was neither recorded nor translated. My (german language) slides are available for now at medi a.sebz.eu/39C3/Finanzvortrag_39C3.pdf LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/finanzmanagement- fur-alle-uber-den-nachhaltigen-um END:VEVENT BEGIN:VEVENT SUMMARY:Pudding mit Stäbchen essen DTSTART:20251227T220000Z DTEND:20251227T232000Z DTSTAMP:20260511T210907Z UID:a5f3a134-ed30-4072-a938-6cef75d57a7b CATEGORIES:official DESCRIPTION:You bring the pudding \nWe bring the chopsticks LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/pudding-mit-stabc hen END:VEVENT BEGIN:VEVENT SUMMARY:hacking medical research - bonus round DTSTART:20251228T000000Z DTEND:20251228T005000Z DTSTAMP:20260511T210907Z UID:1429aaa5-f089-4d97-82d9-311687ac9390 CATEGORIES:official DESCRIPTION:Due to popular demand I'll return. Not sure if i have a struct ured programm\, but there will be a space for questions and connecting.\n\ nsee [https://events.ccc.de/congress/2025/hub/event/detail/hacking-medical -research-for-a-better-transition](https://events.ccc.de/congress/2025/hub /event/detail/hacking-medical-research-for-a-better-transition) for detail s LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/hacking-medical-r esearch-bonus-round END:VEVENT BEGIN:VEVENT SUMMARY:A Primer on LLM Security and Secure LLMOps DTSTART:20251228T093000Z DTEND:20251228T105000Z DTSTAMP:20260511T210907Z UID:82604a07-0548-4ad5-8d0b-2dd7bbf0e0e1 CATEGORIES:official DESCRIPTION:## Post-Session Material\n\nThank you for participating! :)\nT he slides are available here: [Slides (PDF) via Slideshare](https://de.sli deshare.net/secret/1UNWblpgKTSoSR)\n\nYou are welcome to get in touch\, ei ther here (until Day 4) or via the contact information in the slides.\n\n# # Session\n\nLarge Language Models (LLMs) have taken the world by storm. A longside their vast potential\, these models also present unique security challenges. This session will serve as a primer on LLM security and secure LLMOps\, introducing key issues and concepts related to the security of L LMs and systems relying on them. For example\, we will be looking at issue s such as prompt injection\, sensitive information disclosure\, and issues related to the interaction of LLMs with the “outside world” (e.g.\, p lugins or APIs\, RAG\, Agentic AI). Of course\, we are also going to brief ly look at how to red-team LLMs.\n\nThis session is based on previous iter ations of “A Primer on LLM Security” at Congress and\, based on audien ce feedback\, has been extended and developed further.\n\n\nThis session i s based on previous iterations of “A Primer on LLM Security” at Congre ss and\, based on audience feedback\, has been extended and developed furt her.\n\n## Target Audience and Required Previous Knowledge\n\nThis session targets beginners and does not assume (in-depth) knowledge about LLMs. If you have prior experience in LLM security and anticipate insights into th e latest developments\, this session most likely is not for you.\nPlease n ote that this session will not be about using LLMs in offensive or defensi ve cybersecurity.\n\n## Learning Objectives\n\nFrom a learning perspective \, after the session\, participants will be able to …\n\n* describe what LLMs are and how they fundamentally function.\n* describe LLMOps and outl ine fundamental principles of secure LLMOps.\n* describe common security i ssues related to LLMs and systems relying on LLMs.\n* describe what LLM re d teaming is.\n* perform some basic attacks against LLMs to test them for common issues.\n\n## About Me\n\nMy Name is Ingo\, and I am currently resp onsible for Digital Education and Educational Technology at the University of Cologne. Relevant to this session\, I have a background in computation al linguistics and have been working with LLMs for quite some time – als o prior to the ChatGPT moment. I am also involved in developing and provid ing AI infrastructure at scale. Of course\, all of this is embedded within a deep interest in cyber- and information security.\n\n## Format\nThe ses sion will be split into a 45-minute talk as well as 15 minutes of discussi on. Participants will be provided with the slides as well as some resource s for further study.\n\n## Technical Requirements\n As this will not be a highly hands-on session\, there are no technical requirements. If you want to experiment with some of the topics\, a device capable of accessing and /or running LLMs is necessary. If you want to “go deeper\,” you will n eed a device – e.g.\, a laptop\, capable of running LLMs locally.\n\n## Material\n\nAfter the session\, I will provide all materials\, including s ome selected additional resources. All materials will also be provided via this page.\n\n[Slides (PDF) via Slideshare](https://de.slideshare.net/sec ret/1UNWblpgKTSoSR)\n\nPs. This is a slightly updated version of the works hop(s) I gave at previous iterations of Congress. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/a-primer-on-llm-s ecurity END:VEVENT BEGIN:VEVENT SUMMARY:Teamtype – multiplayer mode for your text editor! DTSTART:20251228T110000Z DTEND:20251228T115000Z DTSTAMP:20260511T210907Z UID:d4707753-08fb-47ba-9477-04711d154e7b CATEGORIES:official DESCRIPTION:We've been working on Teamtype (previously known as Ethersync) for two years now: It connects directories on different computers togethe r\, and keeps them in sync. And if you open a file in your text editor\, y ou can edit it together\, and see each other's cursors.\n\nThis enables a new form of smooth real-time collaboration. You can use it for pair progra mming or note-taking\, for example\, all from the comfort of your own edit or! It feels a bit like the missing real-time complement to Git.\n\nTeamty pe follows local-first principles\, and uses encrypted peer-to-peer connec tions (you don't need a server or an account). You can also work on entire projects\, not just single files.\n\nAt 39C3\, it's time for a live demo! Let me show you how Teamtype works and what you can do with it! We're mai ntaining plugins for Neovim and VS Code/Codium\; others are working on plu gins for Jetbrains IDEs\, have integrated it into TeXstudio\, or are build ing a web editor for it! I can also show you some more experimental featur es like a Hedgedoc bridge\, or writing commit messages together.\n\nWe'd b e excited for more collaboration on collaboration\, so let me show you how to get involved!\n\nIn the final part of this session\, you can install & try Teamtype for yourself in a frantic massively-multiplayer editing expe riment! :D\n\n- Source code: \n- Doc umentation: \n- Mastodon: LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/teamtype-multipla yer-mode-for-your-text-editor END:VEVENT BEGIN:VEVENT SUMMARY:Elektronische Patientenakte (ePA) - 13 Fragen\, ob die ePA eine gu te Idee ist DTSTART:20251228T120000Z DTEND:20251228T122500Z DTSTAMP:20260511T210907Z UID:79d28d9d-2051-49bd-bc8b-cd9065b70e06 CATEGORIES:official DESCRIPTION:Wir stellen 13 Fragen dazu\, ob die elektronische Patienenakte (ePA) in der vorliegenden Form eine gute Idee ist.\n\nAußerdem zeigen wi r Möglichkeiten zum Widerspruch gegen die ePA: Man kann bei der Assembly von Freedom not Fear einen Widerspruch erstellen und gleich abschicken.\n\ nQ&A findet an der Assembly von Freedom not Fear statt\, Uhrzeiten werden noch bekanntgegeben. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/elektronische-pat ientenakte-13-fragen-ob-die-epa-e END:VEVENT BEGIN:VEVENT SUMMARY:Hacking Fusion: better Hot-Fusion Technologies that you have not h eard about DTSTART:20251228T123000Z DTEND:20251228T132000Z DTSTAMP:20260511T210907Z UID:48cc8b77-47ac-42f3-a851-0070c245e097 CATEGORIES:official DESCRIPTION:Fusion is always 30 years in the future because government pro jects are too big\, too expensive\, and too slow. It doesn't have to be th is way. \n\nThere are better approaches than the three known research dire ctions. There are better fusion fuels that don't cause radioactive contami nation. Fusion has even been achieved by school classes and private indivi duals. A proof that it is possible with much less effort. \n\nIf we invest ed as much money in proton-boron fusion as we do in deuterium-tritium\, we would probably have power plants in 15 years. Dense Plasma Focus is suita ble for decentralized 10-MW power plants. Inertial Electrostatic Confineme nt for neighborhood power plants with 100 MW. This is not about cold fusio n. It's about fusing atomic nuclei with high energy (hot) to gain even mor e energy. But in different physical configurations. Unfortunately\, the me dia ignores these other hot fusion approaches. \n\nThis is an info dump on the state of the art: what fusion fuels exist\, how you build your own fu sion reactor\, why hot plasma is physically unfavorable\, why some people want to strip-mine the moon\, and why other fusion projects that must make do with 100 times less money still achieve similar performance. These pro jects don't appear in the mainstream press. But they will soon overtake IT ER. \n\n\nIf we want to achieve the energy transition\, then policymakers must stop investing in supposedly safe large-scale technology. It could be much faster and cheaper and the new energy grid could be decentralized. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/fusion-geht-besse r-andere-hot-fusion-technologien- END:VEVENT BEGIN:VEVENT SUMMARY:Privacy Ultras Meetup DTSTART:20251228T133000Z DTEND:20251228T145000Z DTSTAMP:20260511T210907Z UID:92fda60e-ee15-43f7-9f16-3069adb50756 CATEGORIES:official DESCRIPTION:If you're trying to raise your privacy / OPSEC in the real and digital worlds to a maximum\, this is for you.\n\nThis is a round-table s kill sharing session about practical privacy.\nLet's discuss our threat le vels (what we're trying to protect against) and share our approaches to pr eserving our privacy.\n\nTopics may include how to avoid unique identifier s like your legal or birth name\, phone numbers\, email addresses\, physic al (postal) addresses\, device identifiers like browser cookies\, IP addre sses\, MAC addresses\, anonymous/multiple SIM cards or virtual phone numbe rs\, and all kinds of fingerprinting techniques.\n\nI will bring a list of topics/threats and we'll discuss our solutions to them. I'm asking to sha re your tricks\, which may include using fake names\, P.O. boxes and parce l lockers\, actively avoiding cameras\, using anonymous phone numbers / SI M cards\, VPNs\, browser extensions\, sandboxing techniques\, self hosting \, and whatever else. Of course I'll bring my knowledge on this topic as w ell.\n\nThe session will not be recorded. Please do not take any photos. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/privacy-ultras-me etup END:VEVENT BEGIN:VEVENT SUMMARY:OpenWrt Meetup DTSTART:20251228T150000Z DTEND:20251228T162000Z DTSTAMP:20260511T210907Z UID:11399a62-d375-430d-b70b-feb76c408483 CATEGORIES:official DESCRIPTION:Once again this year\, the developers and users attending the congress want to discuss current OpenWrt topics.\n\nSlides: https://docs.g oogle.com/presentation/d/e/2PACX-1vT-p3V616mPtoPuN6OnqFHTRsuaBbl7egMFKLD4h oQ3KOpEqjsR__tnDw4QPcmsYu_OUGkZs4bRbNW1/pub?start=false&loop=false&delayms =10000 LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/openwrt-meetup END:VEVENT BEGIN:VEVENT SUMMARY:Science in Science Fiction: Die reale Wissenschaft von Star Trek u nd Star Wars DTSTART:20251228T163000Z DTEND:20251228T172000Z DTSTAMP:20260511T210907Z UID:ad1cc4c7-e125-4cbe-ac14-9e8aaafe5a6f CATEGORIES:official DESCRIPTION:In Science Fiction gibt es Überlichtgeschwindigkeit\, Aliens\ , Antigravitation\, Terraforming\, Schutzschilde\, Beamen\, Railguns\, KI\ , Fusion\, Nano\, und noch viel mehr. \n\nDieser Vortrag gibt einen Überb lick\, was die moderne Wissenschaft dazu sagt. Der Stand der Wissenschaft entwickelt sich weiter und das kommt nur langsam in der Science Fiction Li teratur und in der Öffentlichkeit an. Was stimmt noch und was hat sich ge ändert? Was ist wissenschaftlich fundiert\, was wäre vielleicht doch mö glich und was wird immer erfundene Wissenschaft bleiben. \n\nEin realistis cher Blick auf die Technologien von Star Trek und Star Wars. Außerdem ein Blick über den Tellerrand\, denn auch in der Vergangenheit wurden ab und zu schon Technologien erfunden\, die sich vorher niemand vorstellen konnt e. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/science-in-scienc e-fiction-die-reale-wissenschaft- END:VEVENT BEGIN:VEVENT SUMMARY:tech from below DTSTART:20251228T173000Z DTEND:20251228T182000Z DTSTAMP:20260511T210907Z UID:a5335820-b003-4d06-9434-df253d02ac26 CATEGORIES:official DESCRIPTION:[tech from below](https://techfrombelow.de/) is a Berlin-based meetup that brings together tech-savvy activists and activist developers to discuss tech tools for social movements. In this special edition\, we ’ll introduce ourselves and hear from three projects that use technology in their political work.\n\n* **[Klasse & Methode – IT Collective Stutt gart](https://klasse-methode.it/)** will present the community calendar so ftware [Lauti](https://lauti.org/)\n* **[https://esc-it.org](esc-IT Collec tive)** creates content for IT security trainings for activists\n* **[nein zurbezahlkarte.de](https://neinzurbezahlkarte.de/) / [bezahlkarte-stoppen. de](https://bezahlkarte-stoppen.de)**: App for subscription management of payment card vouchers\n\n\nThe event will be held in German only. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/tech-from-below END:VEVENT BEGIN:VEVENT SUMMARY:Get to know the furry fandom (Q&A) DTSTART:20251228T183000Z DTEND:20251228T185500Z DTSTAMP:20260511T210907Z UID:d02ef5fa-b519-498d-8dee-316f7c91ad79 CATEGORIES:official DESCRIPTION:Ask your questions and learn about the furry fandom! Maybe you are curious and are interested in becoming a furry yourself? Or you just wonder why there are fluffy creatures at the congress? Then get to know us ! LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/get-to-know-the-f urry-fandom-qa_ytje END:VEVENT BEGIN:VEVENT SUMMARY:Inklusion and Research Data Management (RDM): Missing visibility o f neurodivergent researcher DTSTART:20251228T190000Z DTEND:20251228T202000Z DTSTAMP:20260511T210907Z UID:b822ef22-ef29-4c0d-897d-0ebb7a96a9f2 CATEGORIES:official DESCRIPTION:Data literacy and digitalisation are crucial topics in today's research institutions\, to tackle global challenges like climate change\, the dramatic loss of species and the erosion of democracy. Nevertheless\, most research data is not digitalised nor back-uped\; reproducible & tran sparent research is often a dream.\nIn Research Data Management\, a lot of guidlines exist to face these difficulties: Data Management Plans\, FAIR data\, ELSA\, etc. It seems like there is a strategy and buzzword for ever y problem.\n\n**But what is missing is a discussion\, if these strategies are inclusive (for neurodivergent people).** How can we alter them\, what is needed for you to apply them?\n\nNo matter if you are a researcher\, wh o has to apply all those strategies\, a Data Steward teaching them\, or ju st interested in the topic: I would love to **discuss** with you about you r experiences in digitalisation in research institutions & universities an d hear about your experiences to raise awareness in the research data comm unity.\n\nAbout the speaker Sarah Büker:\nWhile working as a Data Scienti st at the Data Science Center (BMFTR founded Data Nord Project @ Universit y of Bremen) and beeing neurodivergent myself\, I have faced a lot of excl usive strategies and would love to change the current situation. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/inklusion-and-res earch-data-management-rdm-mi_rje7 END:VEVENT BEGIN:VEVENT SUMMARY:Open source hearing technology DTSTART:20251228T203000Z DTEND:20251228T205500Z DTSTAMP:20260511T210907Z UID:f8354017-3aed-4faf-a3c8-1f1516f3f29a CATEGORIES:official DESCRIPTION:The hearing aid space is antiquated and overpriced and badly i n need of a widely available and easy to use open source alternative. 5 ma nufacturers control 99% of the global market\, and have little incentive t o innovate or compete on prices\, so hearing aids cost thousands of Euros. Everyone we meet has either themselves or through a loved one had a bad e xperience with hearing aids\, or experienced quality of life issues with h earing loss.\n\nWe've been working on making an alternative with our knowl edge of professional audio technology\, which has long outpaced the medica l hearing aid realm. We want to both share the journey\, and learn about y our experiences both with the technology and hearing itself. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/open-source-heari ng-technology END:VEVENT BEGIN:VEVENT SUMMARY:Vortrag: Wie können wir durch gute Kommunikation über unsere Spi elvorlieben mehr Spaß an Pen&Paper-Rollenspiel haben\, anschließend Cong ress-Pen&Paper-Night DTSTART:20251228T210000Z DTEND:20251228T222000Z DTSTAMP:20260511T210907Z UID:b57e7df8-1d24-458c-91a8-fcd7b281e4db CATEGORIES:official DESCRIPTION:A place for your TTRPG session. The whole night!\nFantasy to s ci-fi\, cosy to thrilling\, rules light to rules heavy. It doesn't matter if you already played or will try it for the first time\, this is the plac e to do it.\nThere will be limited materials (pens\, paper). Please bring your own to ensure everyone can have some.\n\nMore information on https:// c3rp.koehr.ing/ LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/roleplay-night END:VEVENT BEGIN:VEVENT SUMMARY:C3RP - 39C3 Roleplaying Night (because 80min is not enough) DTSTART:20251228T223000Z DTEND:20251228T235000Z DTSTAMP:20260511T210907Z UID:d05d4df0-97db-4d96-814c-b62477385957 CATEGORIES:official DESCRIPTION:A place for your TTRPG session. The whole night!\nFantasy to s ci-fi\, cosy to thrilling\, rules light to rules heavy. It doesn't matter if you already played or will try it for the first time\, this is the plac e to do it.\nThere will be limited materials (pens\, paper). Please bring your own to ensure everyone can have some.\n\nMore information on https:// c3rp.koehr.ing/ LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/roleplay-night-2- because-80min-is-not-enough END:VEVENT BEGIN:VEVENT SUMMARY:C3RP - 39C3 Roleplaying Night (because 160min is not enough) DTSTART:20251229T000000Z DTEND:20251229T012000Z DTSTAMP:20260511T210907Z UID:68dc82df-75ae-4756-a731-879b3807e18d CATEGORIES:official DESCRIPTION:A place for your TTRPG session. The whole night!\nFantasy to s ci-fi\, cosy to thrilling\, rules light to rules heavy. It doesn't matter if you already played or will try it for the first time\, this is the plac e to do it.\nThere will be limited materials (pens\, paper). Please bring your own to ensure everyone can have some.\n\nMore information on https:// c3rp.koehr.ing/ LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/roleplay-night-3- because-160min-is-not-enough END:VEVENT BEGIN:VEVENT SUMMARY:A Decentralized Social Layer for the Web - Meeting People on All P ages DTSTART:20251229T100000Z DTEND:20251229T105000Z DTSTAMP:20260511T210907Z UID:69d4a5b0-233a-4b18-aa72-771a37d3600d CATEGORIES:official DESCRIPTION:There is a virtual world that we visit every day. It has billi ons of inhabitants and billions of places. But\, whenever we go\, there is nobody. Just the messages they left. We read our daily online newspapers while many are doing the same. We are browsing the same content - but we a re still alone. If only we could see the other people browsing the same co ntent at the same time. They might be interested in the same things right now. \n\nImagine the real world without all the people on the streets. Str eets and places\, shops\, cafés\, libraries\, deFV\nvoid of people. That' s the Internet\, the Web as it currently exists. Always has been like that and we got used to it. But we wanted more. We wanted social interactions. We got Social Networks and they turned into meme feeds and brain rot. Tha t's not what we asked for.\n\nWe asked for people\, real people. And they are already there. What if we make them visible to each other? Then\, ad- hoc communities can form directly at the content. Communities of like-mind ed people\, interested in the same things. \n\nAll we need is a federated social layer that cannot be owned\, because it is decentralized as the Web itself. An infrastructure of some existing chat protocol in the spirit of the Fediverse or XMPP. \n\nA new way to communicate everywhere\, not just in Social Media silos\, not after giving up your profile. We want to talk to the people we meet wherever we go. We want to reclaim the Web. \n\nHer e is how we do it\n\nCreating a decentralized social layer independent of Social Media silos. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/a-decentralized-s ocial-layer-for-the-web-meeting-p END:VEVENT BEGIN:VEVENT SUMMARY:Relationship Anarchy and Technologies of Connection DTSTART:20251229T110000Z DTEND:20251229T115000Z DTSTAMP:20260511T210907Z UID:f1417f1a-9b59-45ef-a8a3-ec86a5083638 CATEGORIES:official DESCRIPTION:Abstract: Relationship Anarchy is a guiding principle that hol d the promise for us to prefigure the future. This session will start off by defining Relationship Anarchy. It will then nest this definition in the context of our current situation (socially\, politically\, technologicall y). Finally\, we will look at technologies in a wider sense and investigat e whether they are nurturing or hostile towards the prefiguration of Relat ionship Anarchy.\n\nDescription: Relationship Anarchy is a form of livable anarchy. It follows in the steps of anarchy\, in that it rejects illegiti mate authority and nurtures personal and collective autonomy and agency. L ivable anarchy opens up the public space for folx to participate actively in shaping how they wish to live and self-represent their desire and ident ity. It is rooted in solidarity and a respectful attitude towards othernes s. \n\nIn this talk\, we explore the ways in which technology shapes our a bility to practice Relationship Anarchy\, as a form of livable anarchy. We start off by acknowledging that our use of technology shapes what we can do\, perceive and imagine. In this sense\, we can categorize technologies\ , in a broad sense\, as either hostile towards Relationship Anarchy\, or a s nurturing towards it. \n\nThe basis of this discussion is going to be a definition of Relationship Anarchy that catileptic\, the speaker\, offers in their writing: "Relationship Anarchy is honoring alterity while making one's self subject to others".\n\nThis presentation is loosely based on th is essay: https://catileptic.tech/posts/relationship-anarchy-technology/ . LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/relationship-anar chy-and-technologies-of-conn_x57l END:VEVENT BEGIN:VEVENT SUMMARY:Introduction to Embedded Rust for beginners (for Hakkaa-Board work shop) DTSTART:20251229T120000Z DTEND:20251229T132000Z DTSTAMP:20260511T210907Z UID:caef9e32-8b3b-4e91-9710-6b7f2ecf6079 CATEGORIES:official DESCRIPTION:_Introduction to Embedded Rust on Microcontrollers and the [Ha kkaa workshop task](https://events.ccc.de/congress/2025/hub/en/project/det ail/assembly/hakkaa-board-smd-soldering-embedded-rust-for-begin/). This in troduction is mostly aimed at beginner participants._\n\nWe'd like to give you an introduction to Rust on a microcontroller based on [Rust programmi ng language: An absolute beginner workshop with intro presentation](https: //events.ccc.de/congress/2025/hub/de/event/detail/rust-programming-languag e-an-absolute-beginner-wor). It aims to show you the little differences of this environment\, presenting the workshop challenge and pointing you in the right direction for getting started.\n\nThis session starts with a pre sentation of about 30 minutes in English and a round of questions for all. After that\, our team supports you with your first self-paced steps.\n\nT he initial part of the presentation covers using Rust on a microcontroller in general. The second part focuses on working with the Hakkaa board.\n\n If you've got a question after this session\, you can find us at the Hakka atachi assembly or in [our Matrix chat](https://matrix.to/#/#hakkaatachi-3 9c3:matrix.org).\n\nWe recommend:\n\n* Having a soldered and tested [Hakka a-Board](https://github.com/hakkaatachi/hakkaa-hardware) (whose kit you ca n get at the Hakkaatachi assembly)\n* Your laptop set up with the [develop ment tooling](https://github.com/hakkaatachi/hakkaa-firmware?tab=readme-ov -file#setup) so that you can spend more time on programming than on instal ling\n* Your laptop fully charged\n\nReferences:\n\n* [Presentation Slides ](https://christian-meusel.de/presentations/2025-39c3-embedded-rust-for-ha kkaa-2/) LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/einfuhrung-embedd ed-rust-fur-workshop-hakkaa-_mlyg END:VEVENT BEGIN:VEVENT SUMMARY:Regiotreffen DTSTART:20251229T133000Z DTEND:20251229T145500Z DTSTAMP:20260511T210907Z UID:7310fde2-79ec-43bb-b5c6-219f3ce5b2f6 CATEGORIES:official DESCRIPTION:Regiotreffen auf dem 39c3. Das Treffen aller Regiovertreter*in nen. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/regiotreffen END:VEVENT BEGIN:VEVENT SUMMARY:Python Programming for Absolute Beginners DTSTART:20251229T150000Z DTEND:20251229T162000Z DTSTAMP:20260511T210907Z UID:6f75e9a7-5ac5-4bd5-9a91-418fd55bb90f CATEGORIES:official DESCRIPTION:(While this abstract is in English\, this workshop will be hel d either in English or German\; depending on who wants to participate!)\n\ nProgramming is not only a useful competency and oftentimes fun\, but also a sort of “cultural technique” of our ever-expanding community. This workshop is intended as a first introduction to (Python) programming for a bsolute beginners. While C3 is traditionally a 'tech/hacker conference'\, more and more people without a programming background attend – as far as I'm concerned\, this is awesome!\n\nWhile you certainly don't have to be a 'coder' to be a part of Congress (or to be a hacker)\, programming is st ill fun\, wonderfully creative\, and also an extremely valuable skill. Don 't be afraid to give it a go!\n\nOf course\, by the end of this 90-minute workshop\, you will not be a programmer. You will\, however\, have attempt ed a deep dive into (Python) programming\, learned some basics\, and set y ourself up for further learning (if you choose to do so). Furthermore\, we will explore why it is still worthwhile to learn programming in a world t hat is seeing increased LLM usage – especially in the domain of software development.\n\n## Target Audience and Required Previous Knowledge\n\nThi s is NOT a session for experienced developers who want to learn Python. Th is session is intended for beginners with little to no experience programm ing! Motivated children and young hackers are more than welcome\, but it w ill be a stretch.\n\nNo previous knowledge and/or technical expertise is r equired!\n\n## Learning Objectives\n\nFrom a learning perspective\, after the session\, participants will be able to …\n\n* describe what programm ing essentially is about.\n* name and describe some basic programming term inology.\n* define requirements and design simple software.\n* model simpl e problems in terms of data structures and basic algorithms.\n* write basi c scripts in Python in order to solve specific problems.\n* describe the r ole of LLMs in modern software development.\n\n## About Me\n\nMy Name is I ngo\, and I am currently responsible for Digital Education and Educational Technology at the University of Cologne. Relevant to this session\, I hav e a background in both education and computational linguistics. My love fo r Python stems from my work as a (computational) linguist and various proj ects I've been involved with. :)\n\n## Format\n\nThis session will be a 90 -minute “code-along” workshop. We will be looking at some fundamental concepts in theory and\, together\, write some code.\n\n## Technical Requi rements\n\nIf you want to participate actively (i.e.\, code along)\, you s hould bring a device that is capable of running a modern browser and has I nternet access. Being able to type comfortably is also recommended \;). Al ternatively\, any device capable of running Python 3.10+ (ideally in a Jup yter Notebook) will do just fine!\n\n## Material\n \nAfter the session\, I will provide all materials\, including some selected additional resources . All materials will also be provided via this page.\n\nThe material\, inc luding the slides\, is available via [GitHub](https://github.com/IngoKl/39 c3-python-programming-for-absolute-beginners).\n\nPs. This is a slightly u pdated version of the workshop(s) I gave at previous iterations of congres s. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/python-programmin g-for-absolute-beginners END:VEVENT BEGIN:VEVENT SUMMARY:Megastrukturen und Galaktische Imperien (oder: Wie man eine Dyson- Sphäre baut) DTSTART:20251229T163000Z DTEND:20251229T172000Z DTSTAMP:20260511T210907Z UID:19fb99be-9c5e-486c-93e5-2a446e6e6fc8 CATEGORIES:official DESCRIPTION:Es geht um große Dinge: Dyson-Sphären und Imperien mit unzä hligen Planeten. Wer ist mächtiger? die Föderation der Planeten\, das Ga laktische Imperium oder ein einzelnes voll ausgebautes Sonnensystem? Anfan gs gibt es Raumstationen wie die ISS\, dann rotierende Raumkolonien\, irge ndwann einen Ring um die Erde. Und eine Ringwelt um die Sonne ist erst der Anfang\, wenn man eine Dyson-Sphäre bauen will. \n\nDer mögliche Weg vo n rotierenden Zylindern zur Kardashev II Zivilisation mit einer ganzen Son ne als Fusionsreaktor. Wie man das baut\, was das dann bedeutet und ob man sowas überhaupt braucht. Spoiler: Dyson-Sphären werden unterschätzt. S ie sind größer als man denkt und vieles ist ganz anders\, als man aus Sc ience Fiction kennt. Eigentlich können wir mit heutiger Technologie schon einen Dyson-Schwarm bauen. Wir haben sogar schon angefangen. Es ist nur v erdammt viel Arbeit für die Bots. Aber dann gibt es fast unendlich viel L ebensraum und noch mehr Compute-Leistung. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/megastrukturen-un d-galaktische-imperien-oder-wie-m END:VEVENT BEGIN:VEVENT SUMMARY:Alles smart und sicher? Oder nur Schall und Rauch? Zu den Datenspu ren smarter Rauchmelder. DTSTART:20251229T173000Z DTEND:20251229T185000Z DTSTAMP:20260511T210907Z UID:6998ed32-bb30-44df-af58-4b31dd9e7788 CATEGORIES:official DESCRIPTION:‘New smoke detectors spy on tenants – and they have to pay for it’ was the headline in Stern magazine on 5 November 2024. The ‘s mart’ smoke detectors referred to in the article have sensors that can d etect fires and also measure ‘personal climate data’\, transmitting it wirelessly [2\, 3]. Consumer advocates have warned of infringements on pe rsonal rights [4\, 5]\, and the topic has also sparked heated discussions within the community [6]. However\, Techem claims that neither landlords n or they can determine which rooms someone is currently in. It is also not possible to track whether people are leaving the apartment or coming home ” [3]. [3].\n\nWorkshop schedule:\nIn about 10 to 15 minutes\, we will i ntroduce the topic of simple sensor data in the smart home. We will presen t examples of simple sensors from our research and explain how they were c reated using our sensor kit [7–9].\n \n\nThe second part is a joint 'dat a guessing game'. We will examine selected data traces that could have bee n generated by smart smoke detectors\, such as the 'Multisensor Plus'\, an d similar devices*\, and attempt to collectively analyse the data and clas sify it. \n\nThe final 20–25 minutes of the workshop will be reserved fo r reflection.\nHow meaningful is simple sensor data from the home?\nWhat i mpact can this sensor data have on privacy?\nHow should we deal with it?\n \n[1] https://www.stern.de/wirtschaft/immobilien/vonovia-skandal--neue-rau chmelder-spionieren-mieter-aus—35199846.html\, accessed 9 July 2025.\n[2 ] https://www.vonovia.de/weitere-angebote/multisensor-plus – accessed 16 July 2025.\n[3] https://www.techem.com/de/de/geraete/multisensorplus-date nschutz — accessed 24 October 2025.\n[4] https://www.zeit.de/digital/dat enschutz/2024-10/rauchmelder-vonovia-mieter-datenschutz-smart – accessed 16 July 2025.\n[5] https://www.swr.de/swraktuell/baden-wuerttemberg/ulm/m ieter-wehren-sich-gegen-teure-rauchmelder-von-vonovia-100.html – accesse d 16 July 2025.\n[6] https://chaos.social/@evawolfangel/113357161708038023 – accessed 24 October 2025.\n[7] https://doi.org/10.1109/CIVEMSA53371.2 022.9853698\n \n[8] https://doi.org/10.18420/muc2024-mci-ws17-153\n[9] htt ps://doi.org/10.18420/inf2024_65 \n\n* Average hourly temperature and humi dity values per room (according to [3]).\n\nAbout us:\n\nKarola: I combine social\, educational and technical perspectives\, with a particular inter est in hacking\, the Internet of Things and digital education issues in th e context of privacy and AI. Karola is active in the Chaos Computer Club C hemnitz.\n\nAlbrecht: I develop\, research and teach at the intersection o f human-computer interaction and the Internet of Things. I focus on smart connected objects in everyday life and how people interact with them. I al so consider the impact this has on their privacy.\n\nSimplications: Simpli cations researches the implications of supposedly simple sensor data in th e home. It is a joint project of Chemnitz University of Technology\, Anhal t University of Applied Sciences and the Saxony Consumer Advice Centre\, a s part of the programme 'Privacy Platform: Supporting citizens in exercisi ng their fundamental right to informational self-determination”. Simplic ations is funded by the Federal Ministry of Research\, Technology\, and Sp ace (FKZ 16KIS1868K).\nhttps://simplications.tucmi.de\n\nThe workshop will be held mostly in German. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/alles-smart-und-s ave-oder-nur-schall-und-rauc_gz4c END:VEVENT BEGIN:VEVENT SUMMARY:Treffen der netzpolitischen Community der Schweiz DTSTART:20251229T190000Z DTEND:20251229T202000Z DTSTAMP:20260511T210907Z UID:8b06246d-d95c-4934-9568-2f9cc51a0cc5 CATEGORIES:official DESCRIPTION:Nach dem Vortrag zur Netzpolitik in der Schweiz (Tag 3\, Saal Fuse\, 19:15) sind alle interessierten Personen eingeladen\, die Diskussio n in einer self-organized Session fortzusetzen. Es werden Aktivist:innen v on verschiedenen Organisationen der Netzpolitik in der Schweiz anwesend se in. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/treffen-der-netzp olitischen-community-der-schweiz END:VEVENT BEGIN:VEVENT SUMMARY:Widerstand gegen Debanking DTSTART:20251229T203000Z DTEND:20251229T212000Z DTSTAMP:20260511T210907Z UID:9960c6d6-93ad-4d22-b346-1a0883d902d1 CATEGORIES:official DESCRIPTION:How are Antifa-Ost\, the war in Ukraine\, Antifa = terrorist g roup\, an American despot\, and the bank accounts of German left-wing anti -repression structures connected?\nThis fall\, several political actors in Germany were affected. Among them were the anti-repression structures ABC Dresden and Rote Hilfe e.v: Our bank accounts were closed and several ban ks refused to open new ones. The reason? No official reason has been given to us so far. However\, when we look at these events against the backdrop of the ongoing criminalization of anti-fascism and the classification of anti-fascists from Germany as terrorists by the US\, a political motivatio n seems likely. This development is worrying and highlights the urgency of taking action against the ever-increasing shift to the right.\n\nAfter a brief update on the situation of affected groups and the political context in which debanking is taking place in Germany\, we want to explore how we can respond to the current situation and develop a common perspective for action. \nOur goal: to make anti-repression structures capable of action again in the current times! Because we need them all more urgently than e ver!\n\nWe would like to discuss the following topics in groups:\n- Networ king among GLS members / GLS cooperative\n- Alternative and decentralized payment options. Creating independence from banks?\n- Gathering informatio n\, bringing transparency to commercial lists (OFAK and Worldcheck)\n- Lev erage and pressure options on Bafin/authorities. Which actors are involved ? Who creates sanctions and terror lists? LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/2-jahre-bezahlkar te-2-jahre-widerstand-gegen-_kzuw END:VEVENT BEGIN:VEVENT SUMMARY:Max8min (Kurzfilm / Short Film) 🍿 DTSTART:20251229T213000Z DTEND:20251229T222000Z DTSTAMP:20260511T210907Z UID:5a2a9411-0169-445c-8edb-26c661af3ace CATEGORIES:official DESCRIPTION:We will be watching around 50 minutes of selected short films that are a maximum of 8 minutes long. Many films are either without dialog ue or\, if necessary\, have German subtitles. Do you know a good short fil m? Then send me the link – maybe there will be a next edition of Max8min 🎦 LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/max8min-kurzfilm- short-film END:VEVENT BEGIN:VEVENT SUMMARY:Tales of apartheid DTSTART:20251229T223000Z DTEND:20251229T232000Z DTSTAMP:20260511T210907Z UID:2d9296bd-bfcd-41bd-aeb9-07909321132a CATEGORIES:official DESCRIPTION:After yesterday we had way too many people not being able to h ear us at the self organised session\, we want to repeat it with a room an d mics\, giving everyone an oppurtunity to participate.\nI am palestinan w ith israeli citisinship and I lived about 30 years under the apartheid.\nW ith my is an activist who was in the westbank during 2022 to 2024\, who ne xt to his activism was collecting data for his university work\, documenti ng the dynamics between settlers and the palestinans. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/tales-of-aparthei d END:VEVENT BEGIN:VEVENT SUMMARY:Eigentum: Was soll das? DTSTART:20251229T233000Z DTEND:20251229T235500Z DTSTAMP:20260511T210907Z UID:7354f45e-4858-4ae5-8a74-2ee357dc78d3 CATEGORIES:official DESCRIPTION:Vorstellung einiger klassischer Gedanken zur Eigentumstheorie\ , insbesondere zur Rechtfertigung von Eigentum.\nNach dem allgemeinen Teil kommen wir speziell auf geistiges Eigentum und Softwarerechte zu sprechen . LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/eigentum-was-soll -das END:VEVENT BEGIN:VEVENT SUMMARY:Communist meetup #1 DTSTART:20251230T000000Z DTEND:20251230T005000Z DTSTAMP:20260511T210907Z UID:70b89aae-483f-4a2b-b985-9c5978077993 CATEGORIES:official DESCRIPTION:communist hackers\, communist postartists \nand everyone inter ested in fighting fascism and imagining the world after capitalism are wel come to join our discussion.\n\nwe are bringing our local revolutionary ex perience from Germany\, Poland\, Spain and LATAM\n\nlets discuss what's ne ed to be done:\n - how to setup safe digital infrastructures in your com munist org\n - systematic changes to unshit the tech and beyond\n - ho w to quit your bullshit job and move to better system\n - revolutionary potential of postart (based on Jerzy Ludwiński's theory)\n - communist approach to free software\n - anti-capitalist labor scheduling based on menstrual cycle LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/is-the-free-softw are-communist END:VEVENT BEGIN:VEVENT SUMMARY:Sozialrecht hacken - Hartzen für Fortgeschrittene DTSTART:20251230T093000Z DTEND:20251230T105000Z DTSTAMP:20260511T210907Z UID:77e26042-8959-40c1-ba4a-b626fbebe43a CATEGORIES:official DESCRIPTION:https://events.ccc.de/congress/2025/hub/de/event/detail/wer-li egt-hier-wem-auf-der-tasche-genug-mit-dem-burgergeld-fetisch-sturmt-die-pa laste\n\nNachdem in diesem Talk wahrscheinlich viel über Bürgergeld und "neue Grundsicherung" geredet wurde\, gehen wir hier in einem praktischen Austausch zu einem selbstbewussten Umgang mit dem ganzen Scheiß. Es geht um Tipps\, Tricks und Hacks im alltäglichen Umgang mit dem Jobcenter. Die Referentin bezieht bereits seit mehreren Jahren unsanktioniert Bürgergel d\, ohne auch nur einen einzigen Termin wahrgenommen zu haben\, aber das g anze soll mehr ein offener Austausch sein\, bei dem alle etwas beitragen k önnen\, als ein linearer Vortrag. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/sozialrecht-hacke n-hartzen-fur-fortgeschrittene END:VEVENT BEGIN:VEVENT SUMMARY:speedrun: hacking medical research in under 4.5 minutes DTSTART:20251230T110000Z DTEND:20251230T112500Z DTSTAMP:20260511T210907Z UID:8ff32e43-e9c4-4431-bb8b-66cdc185a352 CATEGORIES:official DESCRIPTION:I made a bargain\, now I have to keep up my end of the deal.\n \nThis is the 10x sped-up version of my other talk on day 1 -- for the ADH D crowd\, for anyone who missed the first talk\, or for those that just wa nna enjoy the show and have a laugh.\n\n[https://events.ccc.de/congress/20 25/hub/en/event/detail/hacking-medical-research-for-a-better-transition](h ttps://events.ccc.de/congress/2025/hub/en/event/detail/hacking-medical-res earch-for-a-better-transition)\n\nThis is a speedrun. I cannot select less than 25 minutes\, but I do not intend to go over 5 minutes unless I have to reset. I would prefer to do this as lightning talk\, but I'm not sure t hey support LiveSplit. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/speedrun-hacking- medical-research-in-under-45-minu END:VEVENT BEGIN:VEVENT SUMMARY:Modern Typesetting and LaTeX Alternative -- Typst Meet-Up DTSTART:20251230T113000Z DTEND:20251230T115500Z DTSTAMP:20260511T210907Z UID:05e14097-b55f-41ad-a0b9-d7bccd34fbdb CATEGORIES:official DESCRIPTION:Are you interested in Typst – the elegant typesetting system and FINALLY a modern alternative to LaTeX?\nThen come to our Typst Meet-U p! Whether you already have experience with Typst and want to showcase you r own projects or templates\, or whether you are completely new and want t o get to know the tool – everyone is welcome!\n\nWhat we want to do and share with you:\n- Short introduction and overview for beginners\n- Exchan ge with other Typst users and interested parties \n- Presentation of your own projects\, templates and tricks at distributed tables\n- Open questio n and answer session\n\nFeel free to bring your laptop to participate live or present your work. We look forward to exciting discussions and exchang es about Typst! LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/modern-typesettin g-and-latex-alternative-typst-mee END:VEVENT BEGIN:VEVENT SUMMARY:Realismus beim SF Weltenbau: Was wir aus der Geschichte über die SF-Zukunft lernen können DTSTART:20251230T120000Z DTEND:20251230T125000Z DTSTAMP:20260511T210907Z UID:e2d88fda-f059-4fde-9f4a-9b1937e6b14c CATEGORIES:official DESCRIPTION:So wie das Fantasy-Genre oft das Mittelalter abbildet und weit erdenkt\, kann man sich auch in der Science Fiction an der realen Geschich te orientieren\, vor allem dann\, wenn sie realistisch sein soll. Das gilt natürlich auch für Fantasy Weltenbau.\n\nThemen:\nWie man Technologie e ntwickelt: z.B. FTL\nAlles immer größer & teurer? oder kleiner?\nInseln und Entdecker\nDie Größe der bekannten Welt: Reisen und Nachrichten\nVon Vögeln und schwarzen Löchern\nWer bezahlt?\nGeografie rulez\n\nWie ents tehen neue Technologien? Wie sind sie früher entstanden? Wird alles immer größer\, oder auch einmal kleiner und effizienter? Wie entwickeln sich Gesellschaften und Konflikte? Welche wirtschaftlichen und infrastrukturell en Voraussetzungen braucht es\, um kilometergroße Battleships zu bauen? W ie viele Menschen passen eigentlich auf die Erde? Was bedeutet Postapokaly pse im historischen Kontext? Warum sollten wir das Sonnensystem besiedeln und Planeten terraformen? Falls es Aliens gibt\, sind wir dann Forscher\, Siedler und Eroberer? Oder sind wir eher die Eroberten\, wie einst die Bew ohner der Pazifikinseln?\n\nViel Material für eine realistische Geschicht e der Zukunft\, basierend auf realer Wissenschaft und historischen Mustern . LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/realismus-beim-sf -weltenbau-was-wir-aus-der-geschi END:VEVENT BEGIN:VEVENT SUMMARY:web browser fingerprinting DTSTART:20251230T130000Z DTEND:20251230T132500Z DTSTAMP:20260511T210907Z UID:5e4957e1-4479-4fc5-90b3-be49d0c6b9bc CATEGORIES:official DESCRIPTION: LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/web-browser-finge rprinting-survey-of-attacks-and-m END:VEVENT BEGIN:VEVENT SUMMARY:Congress-Metatalk DTSTART:20251230T133000Z DTEND:20251230T145000Z DTSTAMP:20260511T210907Z UID:97b9d779-6bdd-4e5c-9df6-453b5660f136 CATEGORIES:official DESCRIPTION:Wir tauschen uns ein bisschen über die Entwicklung des Congre ss über die Jahre aus\, nicht nur aber insbesondere in Bezug auf Zugängl ichkeit. Und wir können sowohl über positives als auch über negatives r eden. \n\nEndlich wieder vier statt nur drei SoS-Spaces\, wunderbar! Aber keine SoS mehr zwischen 02:30 und 10:30? Scheiße weil wtf\, das ist ein D rittel weniger Congress\, oder geil weil endlich mal Zeit wo man ohne FOMO schlafen kann? Engelküche nur noch für drei Arbeitsstunden pro Mahlzeit \, fatal oder cool weil endlich das Essen reicht und die Schlangen kürzer sind? Keine Captchas mehr beim Ticketkauf. Cool weil Barrierefreiheit ode r ein riesiges Problem wegen Bots? Und können wir vielleicht auch den im Fediverse kursierenden Gerüchten um verbotene Assembly-Aktivitäten auf d en Grund gehen? \n\nWichtig: Das ist KEIN Feedback-Event für die Congress -Orga. Menschen von der Orga sind herzlich eingeladen dabei zu sein und Di nge als Feedback zu verstehen wenn sie wollen\, aber ich organisiere das a ls von der Orga unabhängige Einzelperson und es geht einfach nur um einen Austausch und unterschiedliche Blickwinkel darauf\, wie der Congress sich entwickelt für Menschen die sich darüber gerne austauschen würden. LOCATION:SoS Lecture E URL:https://events.ccc.de/congress/2025/hub/event/detail/congress-metatalk END:VEVENT END:VCALENDAR