Schedule changes
Version 0.1 Dec. 25, 2025
We released a new schedule version!
We sadly had to cancel a session: “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I: Continued” by Pez
Version new import Dec. 25, 2025
We released a new schedule version!
Sadly, we had to cancel sessions:
- “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I: Repeat” by Pez
- “Hack Your Brain Part 2” by Johannes_Max
- “Titel: Demokratische Schule - Die radikalste Schulart, die es gibt” by Johannes_Max
- “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I” by Pez
- “Vegan Chaos: Welcome Meet & Greet” by ganzesaetze (he/him), phil_vcc (he/him)
- “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I” by Pez
- “Noob-Meetup” by Luna
- “SHOC Meeting Day 1”
- “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I: Repeat Continued” by Pez
- “Vegan Chaos: Welcome Meet & Greet” by ganzesaetze (he/him), phil_vcc (he/him)
- “Titel: Demokratische Schule - Die radikalste Schulart, die es gibt” by Johannes_Max
- “RopeLabs Rope Jam: Continued” by Pez
- “SHOC Meeting Day 1”
- “Jujutsu: A Git-compatible version control system” by blinry
- “Jujutsu: A Git-compatible version control system” by blinry
- “Hack Your Brain Part 2” by Johannes_Max
- “Hack Your Brain Part 1” by Johannes_Max
- “Renewable Power Cycles - Patching Democracy” by htext
- “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I: Repeat Continued” by Pez
- “POC Introduction”
- “Hack Your Brain Part 1” by Johannes_Max
- “RopeLabs Rope Jam” by Pez
- “Renewable Power Cycles - Patching Democracy” by htext
- “WTF, nochmal das Ganze?” by neinzurbezahlkarte
- “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I: Repeat” by Pez
- “Noob-Meetup” by Luna
- “WTF, nochmal das Ganze?” by neinzurbezahlkarte
- “POC Introduction”
Version 1.1 2025-12-25 20:29 Dec. 25, 2025
We have new sessions!
- “Inklusion and Research Data Management (RDM): Missing visibility of neurodivergent researcher” by sarah31415
- “Open source hearing technology” by A73X, drquaithe
- “noisio Levitation OSC Drone Synthesizer” by Mitch (he/him)
- “Arduino For Total Newbies workshop”
- “social work get together” by spark (keine)
- “Nerds spielen Spiele - Tag 2” by monsterchen
- “39C3 LED badge -- SMD for Beginners (Day 1)” by Mitch (he/him), the0 (he his him)
- “Emergente Systeme, nachhaltige Konflikte, Warum unsere IT nicht an Hacks scheitert – sondern an sich selbst” by Spock0010
- “tech from below” by VonBelow
- “Meet the Funders: Sovereign Tech Agency, NLnet, Prototype Fund” by shiro
- “#TeamDatenschutz-Meetup” by luap42 (er/ihm, he/him)
- “Go”
- “Alternative Nutzungsweisen von Microblogging” by sozialwelten (er/ihn)
- “Carry you carry me / Leute Tragen”
- “Fediverse-Meet-Up: Treffen von allen, die Instanzen selber betreiben (möchten)” by MoniKa (c4E) (she/her)
- “Pitch: Power Zeichnen – Machtdynamiken sichtbar machen mit Louisa & Justus (Workshop)” by Marty
- “Daily Tech Talk: CADUS Academy – Building an Open Learning Platform” by Anna-Lea
- “Ein (fast) werbefreites Internet mit einem PiHole - Filter - Session für Anfänger” by Fabiandreas
- “Let's Talk about Psychedelics, Honey!” by Indivisual
- “Awareness / networking - Meeting to excange for people doing awareness work”
- “Soldering Competition - Prize Awards”
- “ΠXL: Noisy Improvised Concert on Analog&Digital Modular Synths (live)” by Marty
- “Geschichten Erzählen Tag 3 - Zauberschule: Schatzjagd” by Cisz (er, he)
- “Blocktris game soldering workshop (not for beginners) (Day 4)” by Mitch (he/him)
- “Hack the Training! Call for Ideas für DIY-Lösungen in Einsatzsimulationen” by Anna-Lea
- “Papierbasteln Tag 1” by Cisz (er, he)
- “Bügelperlen ... aber anders” by elzbeth
- “Accessibilty Helper Introduction”
- “Den solidarischen Gutscheintausch mit Unterstützung der App Couponexpress organisieren” by neinzurbezahlkarte
- “TBD friends badge soldering workshop” by the0 (he his him)
- “Lingo Coordination Day 1”
- “Pony Pracht, Nina Bendix Igleses: »Water to Voice« (live perfomance)” by Marty
- “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I: Repeat Continued” by Pez
- “Operating System Developers (OSDev) Meetup” by offlinemark
- “cozy crafting session” by Lorva (keine/no pronouns)
- “Fight, Flight, Freeze - und dann? Handlungsfähig bleiben mit Psychologischer Erster Hilfe. Ein Crashkurs” by Anna-Lea
- “A whirlwind tour through the land of Wikidata-powered apps” by Lucas Werkmeister
- “Wikidata Introduction” by Lucas Werkmeister
- “Marching ar KITA (political art - presentation)”
- “Widerstand gegen Debanking” by abcdd
- “Spieleprogrammieren mit PyGame” by kenorca, darius, Natureshadow
- “C Code Testing. Let's talk about it!” by Loidi
- “noisio ATtiny Punk Console” by Mitch (he/him)
- “Debanking und die Folgen für die Rote Hilfe e.V.” by RoteHilfe
- “Visualize Your Texts With Wordrain” by Torsten Roeder, Magnus Ahltorp, Maria Skeppstedt
- “Privacy Ultras Meetup” by jomo
- “Daily Tech Talk: CADUS Academy – Building an Open Learning Platform”
- “Bits & Bäume Community Meetup” by benks
- “OpenWrt Meetup” by skorpy (she/her), Hauke
- “Red teams in military operations”
- “Esperanto Schnupperkurs / Esperanto Lightning course” by johmue
- “Gesprächsrunde zum Umgang linksradikaler und anarchistischer Kontexte mit "Social Media"” by Luna
- “Teamtype – multiplayer mode for your text editor!” by blinry
- “Treffen der netzpolitischen Community der Schweiz” by Kire
- “FAQ Panel 2.0: Your Notes, Our Conversation: Unpacking Your Questions about Ethical Non-Monogamy” by zenme
- “RopeLabs Rope Jam” by Pez
- “Lingo Coordination Day 3”
- “Löte dein 39C3 PCB”
- “speedrun: hacking medical research in under 4.5 minutes” by ShadowCone (she/her)
- “Einführung in Scratch”
- “Handson REUSE.software” by Tobias
- “Malware Analysis and Binary Triage” by fxb, deadrabbit
- “Alwin/CircuitCircle Squeaking Rat & LDerroR”
- “Funksender finden mit gehackten Funkgeräten” by DK4HAA
- “Wir gründen eine Chaos-WG als solidarisches, selbstverwaltetes Wohnprojekt in Schleswig-Holstein/Hamburg.” by yellni
- “Ethical Non-Monogamy (ENM) 101 – What are they talking about, and why?” by so-ka (he / him)
- “Haecksen-Picknick für neue Haecksen” by Deanna (keins/none-they/them)
- “Nextcloud Collectives Community Meetup”
- “Relation Anarchy and Solo-Poly meet-up.” by catileptic (they/she)
- “Hour of Code - Programmieren mit Minecraft und Code.org” by ghenny
- “🙊 Oral Languages Are Watched, Sign Languages Are Free 🙉” by snoopy, seejayer (🙊🙉 📵 7880)
- “OpenStreetMap Software Development – Ask us anything!” by Nakaner
- “Soldering Competition - Day 2”
- “Blocktris game soldering workshop (not for beginners) (Day 1)” by Mitch (he/him)
- “End of 10 - Linux install party for kids”
- “Community data centers - a workshop” by Rainer Rehak, Nicolas, Tara Merk
- “Was hat das Fediverse eigentlich zu bieten wenn Datenschutz und Digitale Souveränität egal sind?” by bAvatar
- “Bachmut, 19. April 2023 – Lesung und Gespräch” by abcdd
- “Repression gegen Antifaschist*innen im Antifa-Ost Komplex” by abcdd
- “Luanti(Minetest)-Mods programmieren” by kenorca, darius, Natureshadow
- “Hackspace Entwicklung einer App für die Dezentralisierung von Gutscheintauschangeboten” by neinzurbezahlkarte
- “39C3 LED badge -- SMD for Beginners (Day 2)” by Mitch (he/him), the0 (he his him)
- “Is That an Off-Grid Server in Your Pocket, or Are You Just Happy to See Me?” by Mitch (he/him)
- “POTA - Parks on the Air [DAY 2]” by DK4HAA
- “c3gsm: Ask-us-Anything about the 39c3 cellular network” by bibor
- “Power Play Cycles: Rewriting the Rules of Economic Simulation” by doczx, Mikroprofessor
- “EMF Explorer Badge Electromagnetic Discovery workshop (Day 2)” by Drc3p0 (they/them)
- “Post-Platform Digital Publishing” by tabse
- “Einführung in den Online-Editor iD” by Nakaner
- “Mushroomclub” by Thistle
- “39C3 Schedule App users meetup” by tbsprs (he/his)
- “Christian Faubel: Electronic Oscillators for organic patterns and polyrhythms Jam Session (live)” by Marty
- “Komona we can make it work - Plenary”
- “Nerds spielen Spiele - Tag 3” by monsterchen
- “Elektrobausteine - Tag 4”
- “Stonehenge Cursed Soldering Challenge” by Mitch (he/him)
- “Rope whippings for beginners” by kluthulhu
- “Meet-up Bündnis Offene Netzwerke/ Meet-up Alliance for Open network” by samvie
- “Gewaltfreie Kommunikation” by Johannes_Max
- “EDU-Meet-Up: Du machst was im Bildungsbereich? Komm dazu! (#cyberLZ)” by pnrd, MoniKa (c4E) (she/her)
- “Einsatzgepäck & Alltagskram – ein gemeinsamer Taschencheck”
- “Geschichten Erzählen Tag 1 - Waldwesen (Grusel und Geheimnis)” by Cisz (er, he)
- “Die Sicherheits_lücke live vom 39c3: ein Tag mit der GI” by Volker
- “Zwischen Assistenz und KI-(Selbst)-Kontrolle: Generative KI im Berufsfeld Softwareentwicklung” by Marlene Kulla, Ann Katzinski
- “Einführung in Wikidata” by Lucas Werkmeister
- “Bingo” by Merle, Kara
- “Elektrobausteine - Tag 2”
- “Effizientes Finanzmanagement für alle - Über den nachhaltigen Umgang mit Geld” by sebz
- “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I: Repeat” by Pez
- “Minecraft Commands” by FMT
- “Sorten züchten für Dummies” by Coco
- “Alles smart und sicher? Oder nur Schall und Rauch? Zu den Datenspuren smarter Rauchmelder.” by Albrecht, zazakalina
- “Austausch Mental Health und Suizidprävention im Chaos / Meetup Mental Health and Suicide Prevention in Chaos” by sjaelv (she/they)
- “Betreutes hacken: Broken Access Control” by DerHorst
- “101 - KinkyGeeks + RopeLabs Beginner Bondage Workshop Part I” by Pez
- “ΠXL: Noisy Improvised Concert on Analog&Digital Modular Synths (live)” by Marty
- “Datenschutzrechte zum Mitmachen – DSGVO-Anfragen stellen mit Datenanfragen.de” by Lorenz, Benni
- “c3auti Team Meeting”
- “Wikidata Live Querying” by Lucas Werkmeister
- “What the Guix!?” by NaN (he/him)
- “Surface Mount Electronics Assembly for Terrified Beginners (Day 4)” by Mitch (he/him)
- “GuteN8Geschichte "Das NEINhorn und der Geburtstag" - Tag 3” by ghenny
- “SHOC Meeting Day 1”
- “Meshtastic for Flipper Zero” by Mitch (he/him)
- “Bau dir einen Kritzelbecher” by arp (HE / HIM)
- “Jujutsu: A Git-compatible version control system” by blinry
- “Music Generation for Newbies / Learn to Solder workshop -- ArduTouch music synthesizer”
- “Daily Tech Talk: CADUS Academy – Building an Open Learning Platform”
- “Open Lab - "Doing strange things with electricity 2"”
- “Queer*IT Gathering 🌈” by lambdaqueer
- “Vegan Chaos: Bring-Along Fingerfood Brunch” by ganzesaetze (he/him), phil_vcc (he/him)
- “Jurist:innentreffen” by Dickmaulrussler
- “Mediensucht im digitalen Alltag: Ein offenes Gespräch” by Zebrarider
- “Plushie(-verse) Meetup” by NcamGnrvngu (they/them)
- “WTF, nochmal das Ganze? II” by neinzurbezahlkarte
- “Disarray Desnarler -- Build and flash your DIY Macropad” by Mitch (he/him)
- “Dungeons & Dragons (D&D) - Intro für Junghackerinnen (12 bis 18 Jahre)” by ghenny
- “Hakuna Data: Eine (sehr kurze) Einführung in Kiswahili, lexikographische Daten auf Wikidata und Wikifunctions” by Jens Ohlig
- “Das Wort für Zuhause ist Feuer - midnight porn”
- “Cyber-hygiene for highly-exposed journalists and activists” by jerezim
- “The Spoon Game - 39C3 Special Edition workshop (#3)” by Atypha (She)
- “Imagining Emergent Network Structures” by willscott
- “Archipel: A local Delay Tolerant Network for humans” by kiwi
- “Mini-Wasser-Labor for Kids!”
- “Unsicherheitspaket” by e-punc (der / he)
- “Scrapergeist - Zeitungsgedichte in retro und visionär” by Martha
- “GI Meet-up” by _Elena_Berlin_, Resa, scherrie
- “Welcome to the House of Tea! <3” by HouseOfTea
- “Ada und Zangemann”
- “Om-Resonanz: Dein 15-Minuten-Power-Cycle (Atem-Hack für den C3-Reset)” by kurisu
- “Disability Justice Art as Praxis” by tabse
- “Komona we can make it work - Plenary”
- “Realismus beim SF Weltenbau: Was wir aus der Geschichte über die SF-Zukunft lernen können” by Wolfspelz
- “Wikimedia Commons: Mehr als nur Bilder für Wikipedia - Eine Einführung in das Projekt” by GPSLeo
- “Pwn Basics - Hacking Web Applications for Beginners” by Dr. Affe
- “Ask me anything: Internet Governance” by Sophia Longwe, Ben Burmeister
- “Rust programming language: An absolute beginner workshop with intro presentation” by calisti
- “FSFE Insights” by Ana
- “Synth Meetup” by Mitch (he/him)
- “KI.VooDoo - extracting future sealife with genAI” by tabse
- “What's happening with XSLT?” by Juri —〇 Leino
- “Soldering Competition - Day 3”
- “Post-Platform Digital Publishing” by tabse
- “Christoph Fleischer: Traumtaucher (documentary)” by Marty
- “Electronic Oscillators for organic patterns and polyrhythms” by tabse
- “Papierbasteln Tag 2” by Cisz (er, he)
- “Aktuelle Proteste gegen Verschärfungen von Polizeigesetzen – Austausch, Analyse & Vernetzung”
- “Hack Your Brain Part 2” by Johannes_Max
- “25 Jahre Freifunk - 2027 als Festjahr?” by Andi Bräu
- “POTA - Parks on the Air [DAY 3]” by DK4HAA
- “More privacy for android smartphones” by flysch
- “2 Jahre Bezahlkarte - 2 Jahre Widerstand gegen rassistische und ökonomische Repression” by neinzurbezahlkarte
- “FSFE meetup at Bits & Bäume Habitat” by bonnie
- “Sicher durch den Internet-Dschungel - Ein interaktiver Mitmach-Vortrag”
- “Advocacy for the Social Web” by samvie
- “Geschichten Erzählen Tag 2 - Zauberschule: Ethikexkursion” by Cisz (er, he)
- “FragDenStaat Nutzer*innen-Treffen” by Kara
- “Threat model & best practices for activists”
- “Papierbasteln Tag 3” by Cisz (er, he)
- “🙊 Introduction to International Sign at 39C3 🙉” by snoopy, seejayer (🙊🙉 📵 7880)
- “Vegan Chaos: Let's Talk (Day 3)” by ganzesaetze (he/him)
- “Sozialrecht hacken - Hartzen für Fortgeschrittene” by Luna
- “Open Lab - "Doing strange things with electricity"”
- “Vernetzungstreffen ÖRR” by Benny
- “ccchoir rehearsal 1”
- “Hack Your Brain Part 1” by Johannes_Max
- “Wie können wir durch gute Kommunikation über unsere Spielvorlieben mehr Spaß an Pen&Paper-Rollenspiel haben” by Luna
- “Numerical Weather Prediction” by Raziel, tecer
- “Dissoziative Ressourcen Teilen: Eine DIS-kussion” by Amy (she/her), Luxis
- “Wie man mit offenen Geodaten und Wikidata Natur- und Kulturerbe dokumentiert” by GPSLeo
- “Ethical non-monogamy is not only for millenials” by so-ka (he / him)
- “Bingo” by Merle, Kara
- “TicTacLights Nano Colour -- reflow soldering” by Arne
- “Uprising in Belarus revisted 5 years later” by abcdd
- “Elektrobausteine - Tag 3”
- “Get to know the furry fandom (Q&A)” by autinerd (he/they)
- “Astrology as System of thought for Daily Routines (No Fate, No Woo)” by katy13
- “Meshcore & Meshtastic for Hackers: Set up, Configure, & Deploy Nodes for Advanced Use (Day 3)” by Mitch (he/him)
- “POTA - Parks on the Air [DAY 4]” by DK4HAA
- “Die Sicherheits_lücke live vom 39c3: die Wissenschaft zu Gast” by Volker
- “Löte deinen eigenen Euclidean Sequencer” by carinalntz
- “hacking medical research for a better transition -- war stories from the backrooms of estrannai.se & co” by ShadowCone (she/her)
- “Luanti(Minetest)-Mods programmieren” by kenorca, darius, Natureshadow
- “"Die Waffen nieder (1889)", "Im Westen nichts Neues (1929)" & "Runaround (1942)"” by Tomate_aka_Radikale_Liebe
- “Trikkitt: PolyGen Hands on” by Marty
- “Einführung Löthelfer*innen” by Henning Brinkmann
- “Unveiling Spyware & 0-Days Linked to Italy” by rositarijtano
- “GuteN8Geschichte "Das NEINhorn und die Schlangeweile" - Tag 2” by ghenny
- “Auseinanderbauen für Anfänger”
- “Elektrobausteine - Tag 1”
- “Megastrukturen und Galaktische Imperien (oder: Wie man eine Dyson-Sphäre baut)” by Wolfspelz
- “Pony Pracht, Nina Bendix Igleses: »Water to Voice« (meet the artist)” by Marty
- “Celestial Navigation hands-on” by hudson
- “Löte deinen eigenen Euclidean Sequencer” by carinalntz
- “Speedcoding (JavaScript) 🚀” by Birdy1976
- “Running a NGO empowered by with Software Freedom” by Tobias
- “Omnibus vs. Digitalrechte” by tyncet
- “Post-Platform Digital Publishing” by Martha
- “Look what I found! OSINT resources in conflicts” by mfi
- “Widerspruch gegen die elektronische Patientenakte - jetzt gleich hier erledigen” by flysch
- “Einführung SPARQL + Wikidata Query Service” by Lucas Werkmeister, Andrew McAllister
- “Python Programming for Absolute Beginners” by IngoKleiber (er/sein)
- “Gemüsemusik mit Makey Makey”
- “Trigg - Build an Open-Hardware Portable Handheld Games Console”
- “datarequests.org office hours: We answer your GDPR request questions” by Lorenz, Benni
- “Meshcore & Meshtastic for Hackers: Set up, Configure, & Deploy Nodes for Advanced Use (Day 2)” by Mitch (he/him)
- “GLAM digital – Kulturerbe im virtuellen Dialog zugänglich machen” by Holger Plickert (WMDE)
- “ccchoir rehearsal 2”
- “Am Arsch des Fediverses/At the bottom of the Fediverse” by poo
- “Soldering Competition - Day 1”
- “Promptbastelei und andere Überlebensstrategien” by Marlene Kulla, Ann Katzinski
- “Research on Fedi integration in public administration / Forschung zur Fedi-Integration in der öffentlichen Verwaltung” by ZZEPPOSS (CPT.)
- “WEKILL//LEAKS "version 0.9" (a card game of courageous publishing and imperialist sh1tf#ckery). launch and playtest.” by HouseOfTea
- “Cat Got Your Password: Wi-Fi Self Defense For Beginners (Day 3)” by Mitch (he/him)
- “Minecraft Education – Erfahrung, Praktische Einblicke & Austausch” by ghenny
- “Bildungsurlaub 2.0: Bürokratie hacken” by Dante
- “🙈 🙉 🙊 Nerd Game Show 😸 😹 😻” by Birdy1976
- “Who runs the www? WSIS+20 and the future of Internet governance” by Sophia Longwe
- “nach der Revolte. Ein Reisebericht zu Überwachung und Widerstand in Hongkong” by penny
- “POTA - Parks on the Air [DAY 1]” by DK4HAA
- “Minecraft Education Beginner Workshop (6+)” by ghenny
- “The Spoon Game - 39C3 Special Edition workshop (#2)” by Atypha (She)
- “Signal Angel Introduction”
- “Nextcloud for Activists Meetup”
- “Vegan Chaos: Welcome Meet & Greet” by ganzesaetze (he/him), phil_vcc (he/him)
- “Media needing categories: Wir räumen auf!” by GPSLeo
- “Poetic Technologies and an open-source university” by tabse
- “FLINTA POTA Party - Parks on the Air” by DK4HAA
- “KI.VooDoo - extracting future sealife with genAI” by tabse
- “Geschichten Erzählen Tag 4 - Im Orbit (Science Fiction)” by Cisz (er, he)
- “Nebelhorn” by Pascal4F
- “Federating knowledge: exploring ways to bridge wikis and notes” by Tommi
- “Ask me anything: Internet Governance” by Sophia Longwe, Ben Burmeister
- “Energie von uns für uns! Vergesellschaftung als Lösung für die Transformation unseres Energiesektors” by RWE und co enteignen
- “Nummix (8+) - Einführung in ein neues Kombinationsspiel” by ghenny
- “Fediverse als Business: Gründungsideen und Geschäftsmodelle / Fediverse as a business: start-up ideas and business models” by sozialwelten (er/ihn)
- “Search Engine Creators Meetup” by slatian (they/them)
- “NeinZurBezahlkarte Summit” by neinzurbezahlkarte
- “Surface Mount Electronics Assembly for Terrified Beginners (Day 3)” by Mitch (he/him)
- “Shitty Robot Workshop” by Neo
- “Build your own solar powerd Lora node” by mxtom
- “Hello Qubitty! Your First Steps on a Quantum Computer” by greenygreenfarmer
- “Legale, Halblegale und andere Tricks um ohne Geld durch die Welt zu kommen” by AnnaKia
- “Calliope mini”
- “C3RP - 39C3 Roleplaying Night” by Luna
- “FIfF Meetup” by Gilbert, benks
- “HOW TO BREAK YOUR FACE: Keeping up with the arms race of anti-surveillance recognition tactics.” by tabse
- “Electronic Instruments Jam Session (read description!)”
- “IoT with Arduino Cloud: Beginner-Friendly Workshop” by tdr112 (he/him)
- “Solder Your Own Meshtastic / Meshcore Node” by Mitch (he/him)
- “The State of LEO - Satellite enthusiast meetup” by beeblebroxx
- “Spieleprogrammieren mit PyGame” by kenorca, darius, Natureshadow
- “Search Engines for the Curious” by slatian (they/them)
- “POC Introduction”
- “Catware Python Sensor Playground” by Mitch (he/him)
- “Share Your Citizen Science: Projects, Pets, and Paths for Collaboration ( Is This Citizen Science — and Do You Want Anything from ECSA?)” by katy13
- “Podcasting für Einsteiger*innen” by Bernd
- “Alternative Nutzungsweisen von Microblogging” by sozialwelten (er/ihn)
- “Filmvorführung "Von Menschen, die auf Bäume steigen"” by Samuel_77
- “Build Your Own Air Quality Sensor” by tdr112 (he/him)
- “Community data centers - a workshop” by Rainer Rehak, Nicolas, Tara Merk
- “Vegan Chaos: Farewell Meeting” by ganzesaetze (he/him), phil_vcc (he/him)
- “39C3 LED badge -- SMD for Beginners (Day 3)” by Mitch (he/him), the0 (he his him)
- “Komona teardown meeting”
- “House of Tea Reunion” by AdeptVeritatis
- “Komona we can make it work - Plenary”
- “Cat Got Your Password: Wi-Fi Self Defense For Beginners (Day 4)” by Mitch (he/him)
- “Q&A - Device Neutrality, Free Software and FSFE's litigation against Apple” by Dario Presutti
- “Powering Transparency: Open Data across Parliaments” by How They Vote, Open Parliament TV and Open Data Ranking
- “🙊 Oral Languages Are Watched, Sign Languages Are Free 🙉” by snoopy, seejayer (🙊🙉 📵 7880)
- “Repairable Device Meetup (all creatures welcome)” by Dia
- “Podcasting für Einsteiger*innen” by Bernd
- “Austausch für Eltern von ADHS-Kindern”
- “🙊 Oral Languages Are Watched, Sign Languages Are Free 🙉” by snoopy, seejayer (🙊🙉 📵 7880)
- “Erste Hilfe”
- “possibly TBD friends badge soldering workshop” by the0 (he his him)
- “Solder your very own IoT Pusheen Cat Lamp with WLED! (Day 4)” by Mitch (he/him)
- “Awareness Kids - Formiert euch!”
- “Regiotreffen” by gnom (sie,es / ihr)
- “A Decentralized Social Layer for the Web - Meeting People on All Pages” by Wolfspelz
- “Battling Obsolescence – Keeping an 80s laser tag system alive” by Trikkitt
- “(How) Can we talk about Palestine?” by HouseOfTea
- “Fusion geht besser: andere Hot-Fusion Technologien, die in der Presse nicht vorkommen, uns aber am Ende retten” by Wolfspelz
- “Political Organizing - Tools we need” by Berliner Mieter*innengewerkschaft
- “Kein Palantir BW” by NaN (he/him), Dam0k1es
- “3. Congress Skatturnier auf dem 39c3 - 1. Serie” by segal
- “Linux für Einsteiger:innen (Part 3)” by Sylvia, micu
- “Ende des Haftungsprivilegs für Hosting-Provider? Was das Russmedia-Urteil des EuGH für das Fediverse bedeutet” by firefly
- “Was ist Awareness? Was macht c3awareness? ❤️🩹 What is awareness? What does c3awareness do?” by fuchsi, Keks
- “Build your own Joustmania” by VanFanel
- “CCC-CH Gettogether” by fence
- “Introduction to Embedded Rust for beginners (for Hakkaa-Board workshop)” by sirhcel
- “Digitale Infrastruktur für Videos und Podcasts” by TimBorgNetzWerk
- “EMF Explorer Badge Electromagnetic Discovery workshop (Day 3)” by Drc3p0 (they/them)
- “Renewable Power Cycles - Patching Democracy” by htext
- “Se habla español” by KarlaBago, manuelrabade
- “39C3 LED badge -- SMD for Beginners (Day 4)” by Mitch (he/him), the0 (he his him)
- “OpenStreetMap Meetup” by Marc
- “Deutsche Gebärdensprache (DGS)”
- “Hacking Edge-AI”
- “Traditionelles Haecksen-Picknick” by Deanna (keins/none-they/them)
- “Shift allocation for Video Mixer Angels (Day 3)”
- “Post für das Nebelhörnchen” by Pascal4F
- “Build your own cursor theme (for Linux)!” by blinry
- “Cybersecurity Märchen – Neues aus Nerdistan” by mitBen (He,him,he-man)
- “Kherson. LGBTQ+ under occupation.”
- “Pitch: Power Zeichnen – Machtdynamiken sichtbar machen mit Louisa & Justus (Workshop)” by Marty
- “Heaven Meeting - Day 2”
- “Build Your Own Satellite Ground Station” by tdr112 (he/him)
- “GuteN8Geschichte "Das NEINhorn" - Tag 1”
- “Amateurfunk goes Politik – oder wie ich das Overengineering lernte” by Tny
- “Linux für Einsteiger:innen (Part 2)” by Sylvia, micu
- “WTF, nochmal das Ganze?” by neinzurbezahlkarte
- “Nicht schon wieder Vorratsdatenspeicherung!” by pneutig, tyncet, e-punc (der / he)
- “HOW TO BREAK YOUR FACE: Keeping up with the arms race of anti-surveillance recognition tactics.” by tabse
- “Electronic Oscillators for organic patterns and polyrhythms” by tabse
- “Empower your non-tech community!” by tabse
- “Science in Science Fiction: Die reale Wissenschaft von Star Trek und Star Wars” by Wolfspelz
- “Introduction to Embedded Rust for intermediate to advanced participants (for Hakkaa-Board workshop)” by sirhcel
- “Congress-Metatalk” by Luna
- “Pixelprint:ing with bricks” by tabse
- “Seile takeln für Anfänger” by kluthulhu
- “Congress-Pen&Paper-Night” by Luna
- “letter writing to prisoners”
- “Heaven Meeting - Day 3”
- “Carry you carry me / Leute Tragen”
- “How to thrive in chaos, Part II” by sarah31415
- “We show Quadball🏐🤾🏿♀️🏳️⚧️: brooms, a snitch, six hoop-goals and lots of gender diversity and fun” by jendrik (any), saxnot (he/him)
- “It's Global Capitalism, Stupid -- Soziale Bewegungen gegen Big Tech” by Rike
- “Schwere Weste, dichte Maske – Wie sich Schutzkleidung anfühlt”
- “Fediverse als Business: Gründungsideen und Geschäftsmodelle / Fediverse as a business: start-up ideas and business models” by sozialwelten (er/ihn)
- “Bau dir einen Kritzelbecher” by arp (HE / HIM)
- “A Visit to the Catacombs of Dammtor” by rhandos (she/her)
- “Linux für Einsteiger:innen (Part 1)” by Sylvia, micu
- “Pixelprint:ing with bricks” by tabse
- “Relationship Anarchy and Technologies of Connection” by catileptic (they/she)
- “anders streiten lernen 1” by Tomate_aka_Radikale_Liebe
- “📑 Lesezeichen 2: Das JavaScript schlägt zurück 👾” by Birdy1976
- “self-organized infrastructure meetup”
- “Digital Humanities Meetup” by Torsten Roeder, Ulrike Wuttke
- “Shitty Robot Battle” by Neo
- “Pudding mit Stäbchen essen” by skorpy (she/her)
- “Freifunk und Gluon Meetup” by skorpy
- “Titel: Demokratische Schule - Die radikalste Schulart, die es gibt” by Johannes_Max
- “C3RP - 39C3 Roleplaying Night (because 80min is not enough)” by koehr
- “Chaos Cannabis Cup” by AdeptVeritatis
- “Empower your non-tech community!” by tabse
- “Vectoralism - The economic system of the 21st Century (or: Why is our tech going to shit & what can hackers and organizers do about it?)”
- “Noob-Meetup” by Luna
- “Brainstorming - Politischer Kampf und direkte Aktion gegen "KI"” by Luna
- “How to keep Open Source open without leaving our communities open to threats” by Quintessence
- “LED Strips Everywhere for Everyone! workshop”
- “Secure Offline Communications: What's Next?” by Nico@Briar
- “Vegan Chaos: Let's Talk (Day 1)” by ganzesaetze (he/him)
- “Perspektiven auf Männlichkeit - Eine Einladung zur gemeinsamen Betrachtung” by mation155 (she/her), quin (they/them)
- “3. Congress Skatturnier auf dem 39c3 - 2. Serie” by segal
- “noisio 8-bit synthesizers” by Mitch (he/him)
- “Lingo Coordination Day 2”
- “Light and Sound Badge-Making (choice of 2 kits)” by Mitch (he/him)
- “Aylin Leclaire: Electronic live performance (live)” by Marty
- “Trikkitt: PolyGen Hands on” by Marty
- “Wie können wir durch gute Kommunikation über unsere Spielvorlieben mehr Spaß an Pen&Paper-Rollenspiel haben” by Luna
- “Meshcore & Meshtastic for Beginners” by Mitch (he/him)
- “FediDay 2026 Rückblicke und Ausblicke / FediDay 2026 Reviews and outlooks” by samvie, e-punc (der / he), poo, vgrass
- “Camp27 Family Village Kickoff” by aram
- “Elektronische Patientenakte (ePA) - 13 Fragen, ob die ePA eine gute Idee ist” by Stefan_Streit
- “Prepping-Supply richtig kaufen”
- “RAYHUNTER: Let's hunt Stingrays - Community Meetup” by beeblebroxx
- “Bingo” by Merle, Kara
- “C3RP - 39C3 Roleplaying Night (because 160min is not enough)” by koehr
- “Solder your very own IoT Pusheen Cat Lamp with WLED! (Day 3)” by Mitch (he/him)
- “Safety First, Innovation Last? Überleben als Embedded-Entickler” by kurisu
- “HOW TO BREAK YOUR FACE: Keeping up with the arms race of anti-surveillance recognition tactics.” by tabse
- “Wir zerlegen einen Plasterouter”
- “Nerds spielen Spiele - Tag 4” by monsterchen
- “Neurodivergenz-Meetup” by Deanna (keins/none-they/them)
- “Working With (and Around) Research Infrastructure - Understand Users Stories and Needs” by katy13
- “Security for small teams” by max1
- “EMF Explorer Badge Electromagnetic Discovery workshop (Day 1)” by Drc3p0 (they/them)
- “Nerds spielen Spiele - Tag 1” by monsterchen
- “Einsatzgepäck & Alltagskram – ein gemeinsamer Taschencheck”
- “Mehr Privatsphäre für Android-Smartphones” by flysch
- “Max8min (Kurzfilm / Short Film) 🍿” by Birdy1976
- “GIS im Krisengebiet: Karten, Chaos & Cadus”
- “Surface Mount Electronics Assembly for Terrified Beginners (Day 2)”
- “Einführung in den Online-Editor iD” by Nakaner
- “Blonkenclick, the ESP32 16 segment RGB blinken clock” by mazzoo
- “Repair for future” by Fraxinas
- “Austausch für Eltern und Bezugspersonen von trans Kindern und nicht binären Kindern auf 39C3”
- “Mocha with Metamours: A World Café on Decoding Ethical Non-Monogamy” by catileptic (they/she)
- “AI-tiny Blinkeshit3000 (SMD reflow for beginners)” by Mitch (he/him)
- “Christoph Fleischer: Traumtaucher (documentary)” by Marty
- “(How) Can academic research and activism in SAR interact in solidarity?” by I., Andreas Stoiber
- “Pimp Your Katzenohren” by ghenny
- “Steno Meetup / Introduction” by 42triangles (she/her)
- “Nudeln Hacken / Hacking Noodles” by ghenny
- “Sbor medžuslovjanskogo jezyka” by doofus
- “Lateshift POTA - Parks on the Air” by DK4HAA
- “Shift allocation for Video Mixer Angels (Day 2)”
- “A Primer on LLM Security and Secure LLMOps” by IngoKleiber (er/sein)
- “Trickmisch” by Julis
- “Einstieg in JOSM für fortgeschrittene OpenStreetMapper” by Nakaner
- “Pixelprint:ing with bricks” by tabse
- “Autonomous System (AS) (Owner &) Operator Meetup” by skorpy
- “The Spoon Game - 39C3 Special Edition workshop (#1)” by Atypha (She)
- “Cybersecurity Märchen XXL – Neues und Altes aus Nerdistan” by mitBen (He,him,he-man)
- “Drone & Cymatics, Sound Jam”
- “Emanzipatorische Antworten auf digitalen Autoritarismus, Überwachungskapitalismus und globalen Rechtsruck?” by larsbretthauer
- “"Kann KI uns den Klima Aktivismus abnehmen?" - aus Sicht eines Jugend-Umwelt-Verbandes” by Enrico
- “Bürgerrat zur biometrischen Authentifizierung der Zukunft - Eine spielerische Diskussion über Regulierungsansätze” by grbll, philis
- “Alwin/CircuitCircle SupaLoopa & Screamo” by Mitch (he/him)
- “Vegan Chaos: Let's Talk (Day 2)” by ganzesaetze (he/him)
- “Scrapergeist - Zeitungsgedichte in retro und visionär” by tabse
- “KinkyGeeks + RopeLabs Beginner Bondage Workshop Part II: Next Steps” by Pez
- “Daily Tech Talk: CADUS Academy – Building an Open Learning Platform”
- “PeerTube-Meet-Up: für alle, die Instanzen selbst betreiben” by MoniKa (c4E) (she/her)
- “Chatkontrolle STOPPEN!” by khaleesi (she/her), pneutig
- “Häkeln für Anfänger” by elzbeth
- “Meshtastic Chaos Creatures (MCC): Channels Distribution Party” by bak3n3k0 (He/Him)
- “Wiki Loves Demokratie” by Holger Plickert (WMDE)
- “Präfiguration” by Tomate_aka_Radikale_Liebe
- “Pony Pracht, Nina Bendix Igleses: »Water to Voice« (live perfomance)” by Marty
- “Schlingelkind pres. Deep, Dark and Organic Techno with MilkDrop visuals”
- “Learn to Solder with the "I Can Solder" Badge kit”
- “Make Your Own Brain Machine” by Mitch (he/him)
- “Shift allocation for Video Mixer Angels (Day 1)”
- “CPU-Entwicklung in Factorio: Wie benutze ich PhD's Factorio CPU und wie schreibe ich dafür Programme?” by PhD (he/him)
- “Digital Humanities Meetup” by Torsten Roeder, Ulrike Wuttke
- “European Health Data Space (EHDS)” by novider
Version 1.1 2025-12-23 20:42 Dec. 23, 2025
We released our first schedule!