{"$schema": "https://c3voc.de/schedule/schema.json", "generator": {"name": "pretalx", "version": "2024.2.1"}, "schedule": {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/schedule/", "version": "0.21", "base_url": "https://pretalx.freifunktag.de", "conference": {"acronym": "39c3-bub-workshops-2025", "title": "39c3 Bits&B\u00e4ume Workshops", "start": "2025-12-27", "end": "2025-12-30", "daysCount": 4, "timeslot_duration": "00:05", "time_zone_name": "Europe/Berlin", "colors": {"primary": "#00FF00"}, "rooms": [{"name": "Bits&B\u00e4ume Workshop Area", "guid": "3249bd83-bfb2-445b-bea0-bce4e7370926", "description": "Room with tables, chairs, projector and microfone", "capacity": 30}, {"name": "Bits&B\u00e4ume Living Room", "guid": "326e815a-aba6-4552-9e14-dc9184fc197b", "description": "A cozy lounge area with couches and bean bags for relaxed conversations and discussions.", "capacity": 15}, {"name": "P4P Tea House", "guid": "8f687d7f-6303-4d1d-889e-de1549c6d3e7", "description": null, "capacity": 10}, {"name": "Bits&B\u00e4ume Hackcenter", "guid": "b20d3d49-2dc7-45e9-aadb-62f5cb4bd9a2", "description": "an area with chairs, tables, power plugs and network", "capacity": 15}], "tracks": [], "days": [{"index": 1, "date": "2025-12-27", "day_start": "2025-12-27T04:00:00+01:00", "day_end": "2025-12-28T03:59:00+01:00", "rooms": {"Bits&B\u00e4ume Living Room": [{"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/XAVSPA/", "id": 433, "guid": "39981a70-ccf5-5aea-925d-1a90285129dd", "date": "2025-12-27T17:40:00+01:00", "start": "17:40", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-433-bits-bume-community-meetup", "title": "Bits & B\u00e4ume Community Meetup", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "T\u00e4gliches Meetup zum Netzwerken, gegenseitiges Kennenlernen, Tipps geben.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "08eeb93b-4e8b-5e66-bd02-7524a93c92f9", "id": 368, "code": "9MKSSX", "public_name": "benks", "avatar": null, "biography": "FIfF Berlin", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/MQDPMH/", "id": 458, "guid": "97b9ddde-ef72-548e-bddb-e83af610076c", "date": "2025-12-27T19:00:00+01:00", "start": "19:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-458-battlemesh-meetup", "title": "Battlemesh Meetup", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "en", "abstract": "Meetup for all people involved or interested in the Battlemesh community event, especially regarding the 2026 Battlemesh v18: https://battlemesh.org/BattleMeshV18", "description": "", "recording_license": "", "do_not_record": true, "persons": [{"guid": "603ee8bc-45aa-51aa-af9c-3792ad2171e3", "id": 394, "code": "3KFZSK", "public_name": "battlemesh", "avatar": null, "biography": "The Wireless Battle Mesh is a non-commercial, volunteer-organized annual convention.\r\n\r\nThe convention features a variety of talks and workshops on technical and political issues related to mesh networking, wireless community networks and Openwrt firmware development.\r\n\r\nThe purpose of the event is to further topics such as right to connectivity, community-owned infrastructure and related free open source projects. \r\nhttps://battlemesh.org/", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/PJYHVJ/", "id": 423, "guid": "f1d95e56-3fa1-5712-80fb-c4e923085095", "date": "2025-12-27T20:00:00+01:00", "start": "20:00", "logo": null, "duration": "01:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-423-autonomous-system-as-owner-operator-meetup", "title": "Autonomous System (AS) (Owner &) Operator Meetup", "subtitle": "", "track": null, "type": "Meetup 110 Minutes", "language": "en", "abstract": "If you run an AS, lets meetup.", "description": "After the successful first run last year, let's meet again", "recording_license": "", "do_not_record": true, "persons": [{"guid": "eecd87e8-7143-5a93-b182-2b1b37134bfe", "id": 358, "code": "QMSBA7", "public_name": "skorpy", "avatar": null, "biography": "skorpy is a multifaceted Internet plumber and advocate for scalable network engineering.\r\n\r\nWith a burning passion for simplicity, IPv6, and performance, skorpy operates autonomous systems for science, communities and sometimes money.\r\n\r\nBeyond the digital realm, skorpy is a dedicated firefighter and Techno lover.\r\n\r\n - Matrix: @skorpy:entropia.de \r\n - Mastodon: https://chaos.social/@skorpy", "answers": []}], "links": [], "attachments": [], "answers": []}], "Bits&B\u00e4ume Workshop Area": [{"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/AXQ93Y/", "id": 440, "guid": "2cf55318-a418-5571-b63b-96f676c53022", "date": "2025-12-27T14:00:00+01:00", "start": "14:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/AXQ93Y/84eec1a4c77ecf5d_hGHRiw6.png", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-440--kann-ki-uns-den-klima-aktivismus-abnehmen-aus-sicht-eines-jugend-umwelt-verbandes", "title": "\"Kann KI uns den Klima Aktivismus abnehmen?\" - aus Sicht eines Jugend-Umwelt-Verbandes", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "\"Kann KI uns den Klima Aktivismus Abnehmen?\" - mit dieser Frage haben wir, der AK Digitalisierung der BUNDjugend unsere Aktiven, Vorstand und unsere Gesch\u00e4ftsstelle sowie junge Klimaaktivist*innen konfrontiert. \r\nWir wollen euch vorstellen zu welchem Schluss wir gekommen sind, was wir bereits umsetzen und was unsere Pl\u00e4ne um Umgang mit KI sind.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "bca8b74e-a861-5699-a502-68bee7a63e66", "id": 374, "code": "AQLVGF", "public_name": "Enrico", "avatar": null, "biography": "Ich bin ehrenamtlich aktiv bei der BUNDjugend im Arbeitskreis Digitalisierung und vertrete die BUNDjugend im B\u00fcndnis Bits und B\u00e4ume. \r\nAu\u00dferdem k\u00fcmmere ich mich um die Vernetzung unserer Landesverb\u00e4nde.\r\n@BUNDjugend_ak_digi@climatejustice.global\r\n@enrixxel@social.tchncs.de", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/SNNHQH/", "id": 446, "guid": "2d6fd992-d1bb-5fc5-a9a0-900bcc08b271", "date": "2025-12-27T15:00:00+01:00", "start": "15:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-446--how-can-academic-research-and-activism-in-sar-interact-in-solidarity-", "title": "(How) Can academic research and activism in SAR interact in solidarity?", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "en", "abstract": "Let's snack and chat! We want to invite you to collectively reflect the relationship between activism and academic research with us. \r\n\r\nAs hegemonic and intersectionally discriminatory institutions, universities re-produce global structures of domination and oppression. And regularly, insights from activism inspire academia rather than vice versa. Still, research is a relevant module to understand and meaningfully participate in the world around us. But the line between research and activism becomes blurred anyway. Activists are researchers and researchers are activists, participating in both worlds, oftentimes trying to bring them together. Here, long-term research projects that illuminate specific processes in-depth tend to collide with the rather short-term struggles of activism that need immediate responses to current issues. Therefore, we want to elaborate with you: (How) Can academic research and activism in SAR interact in solidarity?\r\n\r\nIn our own roles as researchers and activists, we appreciate both forms of working and knowledge-producing and are well aware of challenges and difficulties. Together with you, we want to discuss all these challenges and difficulties - but also work out and underline potentials! \r\n\r\nWe organized a workshop like this already at the SAR-Camp in September in Biesenthal. We invite people to newly join in and to follow-up. If you like to, bring some snacks or your breakfast, lunch, dinner, ... The format is meant to be low-key and comfortable!", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "3dcd3060-4329-5171-b45e-b526e49f80e4", "id": 378, "code": "LLTAFY", "public_name": "I.", "avatar": null, "biography": "Located in between research and activism, Isi and Andi deal with border technologies and the external border of the EU.", "answers": []}, {"guid": "51b3cce8-bff8-5158-9c57-8d0cefa995f4", "id": 380, "code": "RHMEHQ", "public_name": "Andreas Stoiber", "avatar": null, "biography": null, "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/3VFMWL/", "id": 422, "guid": "b185d270-5add-5206-916f-65001ae1b9f2", "date": "2025-12-27T16:00:00+01:00", "start": "16:00", "logo": null, "duration": "01:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-422-freifunk-und-gluon-meetup", "title": "Freifunk und Gluon Meetup", "subtitle": "", "track": null, "type": "Workshop 110 Minutes", "language": "de", "abstract": "Auch dieses Jahr wollen sich die auf dem Congress anwesenden Entwicklerinnen und Anwenderinnen zu aktuellen Freifunk und Gluon Themen austauschen\r\n\r\nLink zum Pad: https://md.darmstadt.ccc.de/freifunk-meetup-39c3#", "description": "Auch dieses Jahr wollen sich die auf dem Congress anwesenden Entwicklerinnen und Anwenderinnen zu aktuellen Freifunk und Gluon Themen austauschen\r\n\r\nLink zum Pad: https://md.darmstadt.ccc.de/freifunk-meetup-39c3#", "recording_license": "", "do_not_record": true, "persons": [{"guid": "eecd87e8-7143-5a93-b182-2b1b37134bfe", "id": 358, "code": "QMSBA7", "public_name": "skorpy", "avatar": null, "biography": "skorpy is a multifaceted Internet plumber and advocate for scalable network engineering.\r\n\r\nWith a burning passion for simplicity, IPv6, and performance, skorpy operates autonomous systems for science, communities and sometimes money.\r\n\r\nBeyond the digital realm, skorpy is a dedicated firefighter and Techno lover.\r\n\r\n - Matrix: @skorpy:entropia.de \r\n - Mastodon: https://chaos.social/@skorpy", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/DAXETE/", "id": 432, "guid": "4352c9fa-60c7-5a7e-a2b9-16ff4da7bf9b", "date": "2025-12-27T18:00:00+01:00", "start": "18:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-432-einstieg-in-josm-fr-fortgeschrittene-openstreetmapper", "title": "Einstieg in JOSM f\u00fcr fortgeschrittene OpenStreetMapper", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "In dieser Session werde ich den OpenStreetMap-Editor JOSM vorgestellen, eine Java-Applikation f\u00fcr das fortgeschrittene Bearbeiten von OpenStreetMap-Daten. Anders als der Online-Editor iD sind auch gr\u00f6\u00dfere Datenmengen und Relationen mit JOSM bearbeitbar.\r\n\r\nDer Workshop richtet sich an Leute, die schon einmal zu OpenStreetMap beigetragen haben und Relationen und gr\u00f6\u00dfere Objekte (z.B. Landnutzungsfl\u00e4chen) bearbeiten m\u00f6chten.", "description": "In dieser Session werde ich den OpenStreetMap-Editor JOSM vorgestellen, eine Java-Applikation f\u00fcr das fortgeschrittene Bearbeiten von OpenStreetMap-Daten. Anders als der Online-Editor iD auf der OpenStreetMap-Website sind auch gr\u00f6\u00dfere Datenmengen mit JOSM bearbeitbar. Die Anwendung kann mit Plugins, eigenen Tagging-Vorlagen und Kartenstilen an die eigenen Bed\u00fcrfnisse angepasst werden.\r\n\r\nDie Session richtet sich an Interessierte, die schon einmal zu OpenStreetMap beigetragen haben und tiefer einsteigen m\u00f6chten oder Relationen und gr\u00f6\u00dfere Objekte (z.B. Landnutzungsfl\u00e4chen) bearbeiten m\u00f6chten.\r\n\r\nDer Workshop richtet sich an Leute, die schon einmal OpenStreetMap-Daten bearbeitet haben.\r\n\r\nUm zu OpenStreetMap beizutragen, ist ein Benutzerkonto erforderlich. Bitte legt es vor der Session an. Bitte installiert euch JOSM vor der Session (z.B. aus den Paketquellen eurer Linux-Distribution). Achtet bei der Nutzung der Paketquellen eurer Distribution darauf, dass es sich um Version 18678 oder neuer handelt. Andernfalls k\u00f6nnt ihr damit keine \u00c4nderungen hochladen.", "recording_license": "", "do_not_record": false, "persons": [{"guid": "c765c9b7-5796-5a74-b77c-2ee51c7ce423", "id": 366, "code": "DTYAFL", "public_name": "Nakaner", "avatar": null, "biography": "OpenStreetMap contributor and software developer since 2011", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/APGKWY/", "id": 444, "guid": "ee636d6e-7e89-51a5-9188-cf29c7fcf3d6", "date": "2025-12-27T19:00:00+01:00", "start": "19:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/APGKWY/RWEx-Logo_6LTAqU5.png", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-444-energie-von-uns-fr-uns-vergesellschaftung-als-lsung-fr-die-transformation-unseres-energiesektors", "title": "Energie von uns f\u00fcr uns! Vergesellschaftung als L\u00f6sung f\u00fcr die Transformation unseres Energiesektors", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "F\u00fcnf Stromerzeuger dominieren den deutschen Strommarkt. Zus\u00e4tzlich sitzt mit Katherina Reiche eine Person an der Spitze des Wirschafts- und Energieministeriums, die vier Jahre lang eine F\u00fchrungsposition innerhalb des Energiekonzerns E.ON innehatte. Zwar gibt es Energiegenossenschaften und Balkonkraftwerkbesitzer*innen, die versuchen, sich von diesen Machtstrukturen ein St\u00fcck weit unabh\u00e4ngig zu machen, aber sie produzieren nur einen Bruchteil der Energie, die tagt\u00e4glich nachgefragt wird. Die Kampagne RWE und co enteignen setzt sich deswegen f\u00fcr einen Strommarkt ein, der nicht l\u00e4nger von Profitinteressen getrieben wird, und arbeitet an einem Plan, wie dies durch Vergesellschaftung umgesetzt werden kann.", "description": "Mit der Vergesellschaftung des Energiesektors in NRW wollen wir die Demokratisierung der (Energie)Wirtschaft und eine ernsthafte sozial-\u00f6kologische Energiewende erreichen. Auf juristischer Ebene beinhaltet das die Umwandlung von gro\u00dfen privatwirtschaftlich organisierten Unternehmen in Anstalten des \u00f6ffentlichen Rechts, auf gesellschaftlicher Ebene leitet es einen Paradigmenwechsel ein: von Oligopolstruktur, Intransparenz und riesigen Profitmargen hin zu solidarischen Preismodellen, einem Energiemarkt, der auf Erneuerbare ausgelegt ist und vor allem hin zu einem direkt demokratischen Entscheidungsprozess, an dem alle Betroffenen beteiligt sind - Angestellte, Strombeziehende, von Klimawandel und Energieressourcenabbau Betroffene... \r\n\r\nWie k\u00f6nnten Entscheidungsprozesse in einem vergesellschafteten Betrieb aussehen? Erf\u00fcllt unser aktuelles Strommarktdesign die Voraussetzungen daf\u00fcr? Wie funktioniert unser Energiesystem und warum scheitern privatwirtschaftliche Unternehmen an der Umsetzung der Energiewende? Und wo k\u00f6nnten gesellschaftliche Hebel liegen, um eine Vergesellschaftung auch tats\u00e4chlich umzusetzen? \r\n\r\nIm Workshop wollen wir unsere \u00dcberlegungen dazu vorstellen und sind gleichzeitig auch gespannt auf eure Gedanken zum Thema - denn auch Technik braucht Strom, also lasst uns \u00fcberlegen, wie Produktion und Verteilung demokratischer organisiert werden k\u00f6nnen!", "recording_license": "", "do_not_record": false, "persons": [{"guid": "dc66a8d6-7d94-533f-a4fe-74f4a90ea1c2", "id": 373, "code": "ML9VQE", "public_name": "RWE und co enteignen", "avatar": null, "biography": "RWE und co enteignen setzt sich f\u00fcr die Vergesellschaftung des Energiesektors in NRW ein - wir fordern also, dass zentrale Inftastruktur in \u00f6ffentliche Hand gelegt und demokratisch verwaltet wird. Wenn euch N\u00e4heres interessiert, kommt gerne auch zu unserer Assembly! Dort informieren wir nicht ur \u00fcber die Kampagne, sondern ihr k\u00f6nnt auch abstimmen, was genau vergesellschaftet werden sollte und designen, wie eine demokratische Verwaltung ausgestaltet sein k\u00f6nnte.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/C3UJYN/", "id": 461, "guid": "9c12f687-46d2-5a9f-8bbd-6d91c74deb94", "date": "2025-12-27T20:00:00+01:00", "start": "20:00", "logo": null, "duration": "00:30", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-461-einfhrung-in-streetcomplete-fr-openstreetmap", "title": "Einf\u00fchrung in StreetComplete f\u00fcr OpenStreetMap", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "StreetComplete [1] stellt kleine, vor Ort schnell l\u00f6sbare Aufgaben, und hilft, fehlende Informationen zu OpenStreetMap beizutragen und die Karte aktuell zu halten. Im Workshop werde ich zeigen, wie man mit StreetComplete zu OpenStreetMap beitragen kann, und Erfahrungen aus der Nutzung teilen. \r\n\r\nF\u00fcr den Workshop sind keine Vorkenntnisse zu OpenStreetMap erforderlich. Zum Bearbeiten der Datenbank/Karte ist ein OpenStreetMap-Account erforderlich, in der App ist ein Account allerdings erst zum Upload von \u00c4nderungen erforderlich.\r\n\r\n[1] https://streetcomplete.app/", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "9dcd5496-0afe-5e40-aef0-6b44e3f270a9", "id": 398, "code": "TJXRS9", "public_name": "jkoe", "avatar": null, "biography": null, "answers": []}], "links": [], "attachments": [], "answers": []}]}}, {"index": 2, "date": "2025-12-28", "day_start": "2025-12-28T04:00:00+01:00", "day_end": "2025-12-29T03:59:00+01:00", "rooms": {"Bits&B\u00e4ume Living Room": [{"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/CAN9JP/", "id": 442, "guid": "90258ec4-44a0-53d5-b7cd-8b952bfcefb1", "date": "2025-12-28T12:00:00+01:00", "start": "12:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-442-0-digital-humanities-meetup", "title": "Digital Humanities Meetup", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Digital Humanities: Forschung in den Geisteswissenschaften in digitaler Form, kurz: DH. Wir treffen uns zu einem lockeren Kennenlernen und Gedankenaustausch. Was ist Euer Interesse an den DH, wo verortet Ihr Euch in der Chaosfamilie? Welche Themen des 39C3 k\u00f6nnten f\u00fcr die DH relevant sein - und umgekehrt?", "description": "Digital Humanities: Forschung zu Literatur, Geschichte, Sprache, Kunst, Musik in digitaler Form - von Rechercheprozessen \u00fcber Analysemethoden bis hin zu Publikationsformen. Als Br\u00fcckendisziplin zwischen IT und geisteswissenschaftlichen F\u00e4chern operieren die \"DH\" aber nicht nur anwendungsbezogen, sondern auch transformativ: Sie evaluieren kritisch im Diskurs, welche Aspekte der fortlaufenden Digitalisierung f\u00fcr die wissenschaftliche Praxis f\u00f6rderlich genutzt werden k\u00f6nnen.\r\n\r\nDamit sorgen sie aber auch stets f\u00fcr Aufregung, wenn es darum geht, etablierte wissenschaftliche Prozesse zu st\u00f6ren: Etwa, wenn es um Open Source, Open Science, Open Data geht sowie um FAIR- und CARE-Prinzipien oder um nichtpropriet\u00e4re Standards. Wir begleiten als Digital Humanists somit nicht nur die Digitalisierung von Kulturdokumenten und Wissenschaft(sb\u00fcrokratie), sondern auch von Arbeitsprozessen mit dem Ziel, in diesem Zuge auch eine freiere, fairere, nachhaltigere, zug\u00e4nglichere, offenere und digitalsouver\u00e4nere Wissenschaftspraxis zu etablieren.\r\n\r\nWir schlie\u00dfen an die Meetups der letzten beiden Jahre an und treffen uns wieder zu einem lockeren Kennenlernen und Gedankenaustausch (siehe unser Pad dazu: https://etherpad.wikimedia.org/p/DHMeetup). Willkommen sind alle, die an den DH interessiert sind - und vermutlich sind viele bereits in der Chaos-Familie, ohne dass wir voneinander wissen. Wo in der Chaos-Familie verortet Ihr Euch? Welche Themen des 39C3 k\u00f6nnten f\u00fcr die DH relevant sein und umgekehrt? Kommt zahlreich! Nach Bedarf k\u00f6nnen wir weitere Meetups oder SoS zu spezifischen Themen organisieren.", "recording_license": "", "do_not_record": true, "persons": [{"guid": "b17ad620-8949-58a2-a9dd-74bc9433a4a8", "id": 367, "code": "EYQDDG", "public_name": "Ulrike Wuttke", "avatar": null, "biography": "Digital Humanities - WissKomm - InfoWiss - jenseits des Funklochs zwischen Potsdam und Berlin!", "answers": []}, {"guid": "c37650f7-c396-552b-83b3-cd16f450c160", "id": 376, "code": "JWYQ7P", "public_name": "Torsten Roeder", "avatar": "https://pretalx.freifunktag.de/media/avatars/dino_VnRL5Pt.png", "biography": "Torsten Roeder works at the University of Wurzburg and is specialized on digital heritage research. His work in digital editing and textual history made him a member of the TEI Technical Council. Recently, he started a Retro Computing Lab at his department which is used for studying the digital culture of the 1980s and 1990s. He also holds a PhD in musicology and plays some guitar, and enjoys gardening. Jack of all trades, master of none.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/87XQBL/", "id": 429, "guid": "1f4b4cd8-de2d-52f9-a13e-3932bd7a6171", "date": "2025-12-28T13:00:00+01:00", "start": "13:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-429-openstreetmap-software-development-ask-us-anything-", "title": "OpenStreetMap Software Development \u2013 Ask us anything!", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "en", "abstract": "OpenStreetMap is not a project but rather a movement with small core and many different applications and libraries to us the data. In this Ask Us Anything session, you can ask all the questions about OpenStreetMap data usage as a software developer.", "description": "OpenStreetMap is not a project but rather a movement with small core and many different applications and libraries to us the data. However, there is no central documentation and finding the right tool for your job is challenging. The first search result might work. Will it point to the right tool on long term? Will you run into performance issues or can it handle the complete dataset? How much memory can do you need for X?\r\n\r\nIn this Ask Us Anything session, you can ask all the questions about OpenStreetMap data usage as a software developer. As experienced developers for OpenStreetMap based services (and mappers), we have used lots of different libraries and tools to access and modify the data, to calculate routes or render maps.", "recording_license": "", "do_not_record": false, "persons": [{"guid": "c765c9b7-5796-5a74-b77c-2ee51c7ce423", "id": 366, "code": "DTYAFL", "public_name": "Nakaner", "avatar": null, "biography": "OpenStreetMap contributor and software developer since 2011", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/GBY79R/", "id": 435, "guid": "54421289-8b44-5d6e-bc13-9f85da609f50", "date": "2025-12-28T15:00:00+01:00", "start": "15:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-435-openstreetmap-meetup", "title": "OpenStreetMap Meetup", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Ob langj\u00e4hriges Community-Mitglied, Mapper-Neuling oder einfach nur neugierig \u2013 komm vorbei, teile deine Erfahrungen und lass dich von der Begeisterung f\u00fcr OpenStreetMap anstecken!", "description": "Die OpenStreetMap-Community l\u00e4dt alle Mitglieder sowie Interessierte herzlich zu einem Meetup auf dem 39C3 ein!\r\n\r\nDies ist die perfekte Gelegenheit, um:\r\n- Gleichgesinnte aus der Community kennenzulernen\r\n- spannende Projekte und Ideen auszutauschen\r\n- \u00fcber die Zukunft von OpenStreetMap und aktuelle Entwicklungen zu diskutieren\r\n\r\nEgal, ob du aktiver Mapper bist, neue Technologien rund um OSM spannend findest oder einfach nur neugierig bist \u2013 wir freuen uns auf dich!", "recording_license": "", "do_not_record": true, "persons": [{"guid": "cc13c73f-c449-57d7-8e6c-6664e4233d5b", "id": 357, "code": "7NDY3L", "public_name": "Marc", "avatar": null, "biography": "Marc ist in der OpenStreetMap-Community vor allem als Organisator des OSM-Stammtischs Dortmund und als Mapper aktiv, organisiert Mapping-Partys, Workshops und Events.\r\n### Projekte\r\n- **WissensWert**: das Projekt \"Luftbilder f\u00fcr OpenStreetMap\"\r\n- **WeeklyOSM**: Initiierte und steuerte fr\u00fche Wochennotizen (ab 2010)\r\n- **FOSSGIS Konfernzen**: Im Organisationsteam der j\u00e4hrlichen Fossgis Konfernz", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/8MZ3ES/", "id": 465, "guid": "b9fc9c10-70e0-5204-a4ae-8bc564785002", "date": "2025-12-28T17:00:00+01:00", "start": "17:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/8MZ3ES/38c3-wohnzimmer-lounge_tPYsfBL.jpg", "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-465-fr-datenschutz-menschenrechte-artenschutz-b-b-community-meet-up", "title": "F\u00fcr Datenschutz, Menschenrechte & Artenschutz - B&B Community Meet-Up", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Du bist schon Teil von Bits & B\u00e4ume oder interessierst dich Bits & B\u00e4ume kennen zu lernen? Komm beim T\u00e4glichen Meetup zum Austausch und Vernetzen zu Themen globaler Gerechtigkeit und digitaler Selbstbestimmtheit.", "description": "Du bist schon Teil von Bits & B\u00e4ume oder interessierst dich Bits & B\u00e4ume kennen zu lernen? Komm beim T\u00e4glichen Meetup zum Austausch und Vernetzen zu Themen globaler Gerechtigkeit und digitaler Selbstbestimmtheit.", "recording_license": "", "do_not_record": false, "persons": [{"guid": "08eeb93b-4e8b-5e66-bd02-7524a93c92f9", "id": 368, "code": "9MKSSX", "public_name": "benks", "avatar": null, "biography": "FIfF Berlin", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/TMSHBS/", "id": 434, "guid": "3edb31d0-e1da-512c-bae5-8bb45b07de68", "date": "2025-12-28T18:00:00+01:00", "start": "18:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-434-fiff-meetup", "title": "FIfF Meetup", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "Triff das Forum InformatikerInnen f\u00fcr Frieden und gesellschaftliche Verantwortung. Wir sind ein Zusammenschluss engagiert-kritischer Fachleuten aus Wissenschaft und Praxis der Informati(onstechni)k", "description": "Das FIfF ist ein Zusammenschluss von engagiert-kritischen Fachleuten aus Wissenschaft und Praxis der Informati(onstechni)k. Wir denken \u00fcber die Konsequenzen unserer Arbeit nach, warnen vor sch\u00e4dlichen Entwicklungen und bringen eigene konstruktive Vorstellungen ein. Wir beraten Politik und Medien, publizieren eine eigene Zeitschrift und organisieren Konferenzen, Vortr\u00e4ge und Demonstrationen. Das FIfF ist in Regionalgruppen organisiert und wurde 1984 gegr\u00fcndet.", "recording_license": "", "do_not_record": false, "persons": [{"guid": "aacad21d-44ff-5b15-9c3a-6678c39e3c0f", "id": 360, "code": "3VFKK9", "public_name": "Gilbert", "avatar": null, "biography": null, "answers": []}, {"guid": "08eeb93b-4e8b-5e66-bd02-7524a93c92f9", "id": 368, "code": "9MKSSX", "public_name": "benks", "avatar": null, "biography": "FIfF Berlin", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/79FNMH/", "id": 424, "guid": "726489b8-72a8-5db6-9cfc-d1a3790a15d6", "date": "2025-12-28T20:00:00+01:00", "start": "20:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-424-vernetzungstreffen-rr", "title": "Vernetzungstreffen \u00d6RR", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Dies Treffen soll Mitarbeitende des \u00d6ffentlich-Rechtlichen-Rundfunk, die sich im Chaos bewegen, die M\u00f6glichkeit zum Kennenlernen und Austauschen geben.", "description": "Du arbeitetest im \u00d6ffentlich-Rechtlichen-Rundfunk und bist auf dem Congress? Dann haben wir etwas gemeinsam. Lasst uns treffen & kennenlernen.", "recording_license": "", "do_not_record": true, "persons": [{"guid": "a0487042-240c-57d1-89c8-7473c98d89df", "id": 362, "code": "WDJU7Q", "public_name": "benny", "avatar": null, "biography": "Bin f\u00fcr den \u00d6RR t\u00e4tig und finde den Austausch zwischen \u00d6RR <-> Chaos spannend.", "answers": []}], "links": [], "attachments": [], "answers": []}], "Bits&B\u00e4ume Workshop Area": [{"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/KAQ8ZT/", "id": 426, "guid": "ee467e45-6332-5539-bbb4-10b7e346a8da", "date": "2025-12-28T11:00:00+01:00", "start": "11:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-426-handson-reuse-software", "title": "Handson REUSE.software", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "en", "abstract": "Developing, using, and re-using [Free Software](https://fsfe.org/freesoftware/index.en.html) is fun, but declaring licensing and copyright information is not. [REUSE](https://reuse.software/) changes that. With three simple steps, it makes declaring licensing and copyright information unambiguous and perfectly human- and machine-readable.\r\n\r\nThis is an interactive workshop as an introduction to the REUSE project and demonstration of how to make a repository REUSE compliant.", "description": "As software has gotten more complex over the last years, the importance of declaring licensing information has become even more crucial. The FSFE's REUSE initiative contributes to the goal of clearly displaying legal information in Free Software projects by embedding it into every file of the repository. Any project following the REUSE recommendations makes copyright and licensing information readable for both humans and machines. We ensure that individuals, organizations, and companies that are reusing code are aware of and respect the license terms chosen by its original author, thus making life easier for everyone involved in the software supply chain .\r\n\r\nREUSE integrates seamlessly into development processes and other best practices of indicating Free Software licenses. In addition, there are tools and documentation to help you get started.", "recording_license": "", "do_not_record": true, "persons": [{"guid": "35bfc217-276d-598f-b5c2-4a084b134df6", "id": 361, "code": "NLMSZP", "public_name": "Tobias", "avatar": "https://pretalx.freifunktag.de/media/avatars/Southpark-Tobias-FSFE_z1p2YKU.png", "biography": "FLOSS Enthusiast from Berlin, Fediverse Ambassador, working for the FSFE", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/MRPVWV/", "id": 430, "guid": "00bf0232-c80e-596e-a4c7-2a69ee9af06c", "date": "2025-12-28T12:00:00+01:00", "start": "12:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-430-0-einfhrung-in-den-online-editor-id", "title": "Einf\u00fchrung in den Online-Editor iD", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "In dieser Session wird euch der Online-Editor iD vorgestellt werden, mit dem ihr zu OpenStreetMap beitragen k\u00f6nnt. W\u00e4hrend der Session k\u00f6nnt ihr Fragen zum Beitragen zu OpenStreetMap, dem Mappen, stellen.\r\n\r\nUm zu OpenStreetMap beizutragen, ist ein Benutzerkonto erforderlich. Gerne d\u00fcrft ihr euch vor der Session ein OpenStreetMap-Konto anlegen, dazu ben\u00f6tigt ihr nur einen Benutzernamen und eine g\u00fcltige E-Mail-Adresse.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "c765c9b7-5796-5a74-b77c-2ee51c7ce423", "id": 366, "code": "DTYAFL", "public_name": "Nakaner", "avatar": null, "biography": "OpenStreetMap contributor and software developer since 2011", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/HB9EBD/", "id": 438, "guid": "e12def66-8d15-5f83-917e-bcc871486fe5", "date": "2025-12-28T14:00:00+01:00", "start": "14:00", "logo": null, "duration": "01:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-438-0-community-data-centers-a-workshop", "title": "Community data centers - a workshop", "subtitle": "", "track": null, "type": "Workshop 110 Minutes", "language": "en", "abstract": "What if local communities operated their own data centres? How might that look and function? To what extent would it be democratic and sustainable? Who would (not) benefit from it?\r\n\r\nIn this workshop, we would like to think through, examine and discuss alternative models for the ownership and management of collective data centres. We will take a structured look at fundamental concepts, governance issues and implications, as well as discuss parallel ideas in other areas (cooperative banks or housing, community-supported agriculture) in the hope of initiating a broad discussion about alternatives to the profit and exploitation logic of the current data centre industry. Similar approaches to data centers that already exist include Nubo (Belgium), Espora (Mexico) and Wobcom (Germany).", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "e07de72b-efac-5b65-a43c-f2941ca8d703", "id": 372, "code": "37EP8Y", "public_name": "Rainer Rehak", "avatar": "https://pretalx.freifunktag.de/media/avatars/WI_Dach_Rehak_only_HKfxX4W.jpg", "biography": "Rainer Rehak is part of the research group \u201cDigitalization, Sustainability, and Participation\u201d at the Weizenbaum Institute for the Networked Society, he is an associated researcher at the Berlin Social Science Center (WZB) and is currently doing his PhD on systemic IT security and societal data protection at the TU Berlin.\r\n\r\nHe studied computer science and philosophy in Berlin and Hong Kong and has been working on the implications of the computerization of society for over 15 years. His research fields include technology impact assessment, collective data protection, systemic IT security, state hacking, computer science and ethics, fictions of technology, digitization and sustainability, convivial and democratic digital technology, epistemics of automation, digital (de-)colonialism, and the implications and limits of AI systems.\r\n\r\nHe also publishes regularly in non-scientific outlets and is an expert witness for parliaments (e.g., the German Bundestag) and courts (e.g., the German Constitutional Court). Together with other digital policy and environmental organizations, he initiated the \u201cBits & B\u00e4ume\u201d conference series for digitalisation and sustainability. Rainer Rehak is co-chair of the Forum Computer professionals for peace and societal responsibility (FIfF).", "answers": []}, {"guid": "4d706abd-076a-5248-8134-3ba61f18ecc9", "id": 379, "code": "7RD99L", "public_name": "Nicolas", "avatar": null, "biography": "Dr Nicolas Zehner is a postdoctoral researcher at the Collaborative Research Center 1265 \u201cRe-Figuration of Spaces\u201d at Technical University Berlin, as well as associated researcher at Weizenbaum Institute and HafenCity University. Nicolas holds a PhD in Sociology from the University of Edinburgh. His research investigates the co-constitutive relationship between scientific knowledge production and urban development with a particular focus on higher education institutions.", "answers": []}, {"guid": "7fc20554-c85e-59e5-9613-d450c8a2ab14", "id": 387, "code": "RPJ9QW", "public_name": "Tara Merk", "avatar": null, "biography": "Tara is a postdoc researcher at the CNRS, Paris, an ICDE research fellow at The New School in New York and associate researcher at the Weizenbaum Institute in Berlin. Her research focuses on platform and protocol governance, DAOs and exploring alternative ownership structures for data centers. Her PhD thesis explores the process of Exit to Community, i.e. transitioning organizations and technologies in the digital platform economy into community ownership and governance.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/DCS8LH/", "id": 443, "guid": "051501f6-d65d-5fe4-b318-9c25113ea739", "date": "2025-12-28T16:00:00+01:00", "start": "16:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/DCS8LH/QT4_shaded-0-RMX_UmoToW3.svg", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-443-what-s-happening-with-xslt-", "title": "What's happening with XSLT?", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "en", "abstract": "You may have heard of XSLT or maybe worked with it in the Past. A more recent development is the effort to remove XSLT from the web platform altogether... and yes, it is in your browser, too!", "description": "But did you know that this family of Languages - it not only includes XSLT but also XPath and XQuery - is still very important in the digital humanities and other niches near you? Would you be surprised to learn that there is an effort to specify the next version 4?\r\n\r\nLast year, I joined the QT4 Community Group that is working on that.\r\n\r\nCome by if you are interested in hearing where we are headed or just to indulge in the drama about OppenSource maintenance, W3C politics, and why XML is still around even though JSON and YAML are so much simpler!", "recording_license": "", "do_not_record": false, "persons": [{"guid": "ad9cf2bc-2b9c-5595-8a8e-f7c9eaa28069", "id": 377, "code": "LWY3AA", "public_name": "Juri \u2014\u3007 Leino", "avatar": "https://pretalx.freifunktag.de/media/avatars/-o_2_jwNzkZd.png", "biography": "Software gardener from Berlin writing markup, CSS, JavaScript, XQuery and Java for a living.\r\nI am interested in arts, society and politics. Member of the QT4 community working group.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/N9FSUW/", "id": 449, "guid": "6f7b0875-bdfa-5828-be59-70ab9a1224cf", "date": "2025-12-28T17:00:00+01:00", "start": "17:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/N9FSUW/Bildschirmfoto_20251223_134311_Ih842RS.png", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-449-repair-for-future", "title": "Repair for future", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Meetup f\u00fcr die Reparatur-Community mit Updates zum Recht auf Reparatur und anschlie\u00dfender Diskussion", "description": "* Meetup f\u00fcr alle, die sich in einer Reparaturinitiative engagieren (m\u00f6chten)\r\n* Kurzer Lagebericht zu den neuesten Entwicklungen beim Recht auf Reparatur\r\n* Diskussion \u00fcber Synergien zwischen lokalen Repair-Caf\u00e9s und Make/Hack-Spaces\r\n* Fr\u00f6hliches Rumgenerde \u00fcber eure wildesten Reparaturerfahrungen", "recording_license": "", "do_not_record": false, "persons": [{"guid": "057d3be0-abbe-5120-817c-45bebd5f452f", "id": 382, "code": "G797PV", "public_name": "Fraxinas", "avatar": "https://pretalx.freifunktag.de/media/avatars/mpv-shot0001_ERNwjVL.jpg", "biography": "Andreas, in der FOSS-Community als \u201eFraxinas\u201c bekannt, hat ein Diplom in Elektro- und Informationstechnik von der TH Aschaffenburg. Er ist spezialisiert auf Rust, GStreamer und Embedded Linux. Er h\u00e4lt regelm\u00e4\u00dfig Vortr\u00e4ge auf Konferenzen weltweit und hat als Gr\u00fcnder mehrerer Repair Caf\u00e9s zur F\u00f6rderung einer Kultur der Reparatur und Nachhaltigkeit beigetragen. Acht Jahre lang war er als \u201eRepairfox\u201c in der Sendung \u201eARD Buffet\u201c ein bekanntes Gesicht im deutschen Fernsehen.\r\nEr bastelt leidenschaftlich gerne im Hack-/Makerspace Schaffenburg, ist LGBT-Aktivist, Furry, Musiker, Mountainbiker und Japanischlerner.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/ZS9FDW/", "id": 441, "guid": "f08556ab-5f55-582a-bc03-f55bf5b2f2dc", "date": "2025-12-28T18:00:00+01:00", "start": "18:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/ZS9FDW/1024-550_s7MkgmV.png", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-441-political-organizing-tools-we-need", "title": "Political Organizing - Tools we need", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "en", "abstract": "In our struggles for a better world, we need the right tools to organize collectively. Common solutions seldom align with our ideals of self-organization and freedom from hierarchy. But what tools work in contexts with activists who have little technical experience? And what is our role as hackers in these groups? We see the same challenges in other organizations building up counterpower through structure based organizing as well. So let's connect!", "description": "We are tenants organizing ourselves in the Berlin Tenants Union to fight for better housing conditions. In our organization, we have some active members that need to plan, coordinate and document actions. At the same time, we are constantly growing with new members who have little experience in collective struggles. Onboarding them shouldn\u2019t bring a steep learning curve, but rather empower people to participate right-away. So we need tools that require only a low level of technical expertise to get started.\r\n\r\nYet we\u2019re facing a gap between our values (data sovereignty, open source, collective ownership) and our reality (onboarding friction, technical barriers, competing with Big Tech UX). But we are the advanced users in the technical sphere. So where do less technical users face difficulties so that they choose tools that don't align with our values? And are we mere facilitators or also educators in these spaces? That\u2019s why we would like to exchange with like-minded people.\r\n\r\nSo let's connect and talk about the toolbox we want!\r\n\r\n\r\n\r\nSome questions we would like to discuss:\r\n- How can information and shared knowledge made accessible for new members?\r\n- How can events be communicated and how can we mobilize for specific actions?\r\n- Where should we store contact information from the people we organize?\r\n- How can we keep track of active members?\r\n- And what is our position as hackers in all of that?", "recording_license": "", "do_not_record": true, "persons": [{"guid": "73b9a748-73c9-575e-9f24-6f2b935488c2", "id": 375, "code": "LGWLAW", "public_name": "Berliner Mieter*innengewerkschaft", "avatar": null, "biography": "We are tenants organizing ourselves in the Berlin Tenants Union to fight for better housing conditions. The Berlin Tenants Union has an IT working group to support the struggle with tools.\r\n\r\nYou can contact us here: kontakt@mg-berlin.org", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/GGVFEK/", "id": 448, "guid": "0f4c34f1-54f0-5abf-90f7-08e307c9009c", "date": "2025-12-28T19:00:00+01:00", "start": "19:00", "logo": null, "duration": "02:00", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-448-dn42-freifunk-multicast-routing-peering-workshop", "title": "dn42/Freifunk multicast routing/peering workshop", "subtitle": "", "track": null, "type": "Workshop 110 Minutes", "language": "en", "abstract": "Let's start to make our hackspaces and community networks multicast interconnected!", "description": "Multicast allows to send information, for example audio or video streams, sensor data or service discovery messages, to many interested recipients with minimal overhead, without the need of a central, beefy server. A perfect fit with a decentral network like [dn42](https://dn42.dev/) or [Freifunk](https://freifunk.net/)?\r\n\r\nThe fundamental standards for multicast aren't new but usable, \"bugfree\" implementations have been rare in the past. And multicast is typically not available on common consumer internet connections.\r\n\r\nThe former has changed though, great progress was made in OpenSource software, including Freifunk firmwares and mesh routing protocols, in recent years. Allowing us to experiment with this and potentially making it available to and from a wider, public, distributed audience and providers.\r\n\r\nTo really unfold the potential of multicast and to tackle the chicken & egg problem it will be crucial to establish a multicast topology with a wide reach. So let's start with making our hackspaces and community networks multicast interconnected!\r\n\r\n---\r\n\r\nThis session will kick off with a small presentation on IPv6 multicast routing. Followed by a practical, hands-on workshop to set up IPv6 multicast peerings based on PIM-SD ([RFC7761](https://www.rfc-editor.org/rfc/rfc7761)) over dn42. While the presented tooling will focus on [bird](https://bird.network.cz/) with a dedicated [BGP](https://en.wikipedia.org/wiki/Border_Gateway_Protocol) multicast channel + [pim6sd](https://github.com/troglobit/pim6sd) experimentation and discussion on other tools (maybe [FRR](https://frrouting.org/)?) and approaches will be highly encouraged.\r\n\r\nPrerequisites: For the workshop part you should have a dn42 node or other BGP enabled router set up and connected beforehand and should have some experience with IPv6 unicast routing. Also feel free to stop by in the #dn42-multicast IRC channel on [HackInt](https://hackint.org/) in advance. Having some more \"beta testers\" and potential people to onboard others during the session would be appreciated :-).\r\n\r\nIf you are a commercial ISP or research institute with potential multicast peering opportunities for our community networks then we would also be very interested to hear from you.", "recording_license": "", "do_not_record": false, "persons": [{"guid": "238a9740-210b-507d-a430-a774d64a2007", "id": 381, "code": "LWTSX7", "public_name": "Linus L\u00fcssing", "avatar": null, "biography": "Linus L\u00fcssing, aka. T_X, has been working on getting decentral layer 2 community mesh networks, like Freifunk, multicast enabled and scalable: By adding features and bugfixes to projects like the [B.A.T.M.A.N. Advanced](https://www.open-mesh.org/projects/open-mesh/wiki) mesh routing protocol, the [Linux bridge](https://www.kernel.org/doc/html/latest/networking/bridge.html#multicast) and the [Gluon mesh firmware framework](https://github.com/freifunk-gluon/gluon/). One of his next adventure is to get hackspaces and community networks interconnected via multicast, with tools like [pim6sd](https://github.com/troglobit/pim6sd), to leverage the true potential of multicast.", "answers": []}], "links": [], "attachments": [], "answers": []}]}}, {"index": 3, "date": "2025-12-29", "day_start": "2025-12-29T04:00:00+01:00", "day_end": "2025-12-30T03:59:00+01:00", "rooms": {"Bits&B\u00e4ume Living Room": [{"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/CNZ9AP/", "id": 450, "guid": "eeee823c-cd39-5abc-89db-87a34e73b547", "date": "2025-12-29T12:00:00+01:00", "start": "12:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/CNZ9AP/P4P-Meetup_rcTKZJY.png", "duration": "01:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-450-p4p-meet-greet", "title": "P4P Meet & Greet", "subtitle": "", "track": null, "type": "Workshop 110 Minutes", "language": "en", "abstract": "This is a meet-and-greet for Peer-4-Peer projects (local-first, P2P, OSS and offline-first). Join to say hello to old and new peers and catch the latest gossip of the networks.\r\n\r\nThe beginning will be a free-flowing hang out with origami & tea during followed by a mini workshop where participants get to know each other and the latest updates in the scene.", "description": "Image is revised through color change and added text. Original image source is CC-2.0-Generic via https://commons.wikimedia.org/wiki/File:Rhizomorph_(5211991289).jpg", "recording_license": "", "do_not_record": true, "persons": [{"guid": "3f3fe3ec-0df6-5257-8536-ccbcaecfb214", "id": 347, "code": "ALEQEN", "public_name": "Mathias", "avatar": null, "biography": null, "answers": []}, {"guid": "ae04dd5b-4ce6-5e2e-b3ac-d9b1050cf7a9", "id": 383, "code": "YLWBXS", "public_name": "zelf", "avatar": "https://pretalx.freifunktag.de/media/avatars/blurred_version_PZjmuUg.png", "biography": "Hello, I'm Zenna!\r\n\r\nOriginally from Scuttlebutt, I have now set out to explore the sea of distributed (p2p), local-fist and offline-first through research, collectively referred to as P4P. As part of this initiative I recently launched the www.p4p.wiki where I, and whomever would like to, can document P4P projects. Read my masters thesis on the topic here: https://works.hcommons.org/records/r486j-3cs81\r\n\r\nFind me on mastodon: \r\n@zelf@sunbeam.city  \r\n\r\nWrite me on signal @zelf.46 or DeltaChat (ask afk)", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/QWVWCN/", "id": 428, "guid": "7e0c77b7-242c-57c7-8fb5-4791303c8f11", "date": "2025-12-29T14:00:00+01:00", "start": "14:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-428-q-a-device-neutrality-free-software-and-fsfe-s-litigation-against-apple", "title": "Q&A - Device Neutrality, Free Software and FSFE's litigation against Apple", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "en", "abstract": "Do you want to learn more about Device Neutrality and its implications for user freedom and Free Software? Would you like to learn more about the Digital Markets Act and its implications for Free Software within the EU? Did you know that the Free Software Foundation Europe is litigating against Apple? This session aims to answer all your questions around this topic in a friendly and chill environment, together with FSFE team members, volunteers and curious creatures.", "description": "Join us for an accessible and relaxed session exploring Device Neutrality, user freedom, and the role of Free Software in today\u2019s digital landscape. Learn how the EU\u2019s Digital Markets Act affects Free Software and discover why the Free Software Foundation Europe is taking legal action against Apple. FSFE team members and volunteers will be on hand to answer questions, share insights, and discuss these issues with curious creatures of all backgrounds. No technical knowledge is required.", "recording_license": "", "do_not_record": false, "persons": [{"guid": "c8cd49ce-d5e9-570e-9add-17a2c901e876", "id": 364, "code": "7BEEGS", "public_name": "Dario Presutti", "avatar": null, "biography": "Dario Presutti is a Project Manager at the Free Software Foundation Europe. His work focuses on fostering the use of Free Software in public administration and promoting transparent, accountable digital infrastructures in Europe. With a background in Political Science and a Master\u2019s degree in International Cooperation, Dario has experience engaging with policymakers, monitoring legislative processes, and contributing to initiatives such as Public Money? Public Code! and Device Neutrality.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/CAN9JP/", "id": 442, "guid": "172bd496-4862-5b26-a8b6-61760ec2d125", "date": "2025-12-29T15:00:00+01:00", "start": "15:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-442-1-digital-humanities-meetup", "title": "Digital Humanities Meetup", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Digital Humanities: Forschung in den Geisteswissenschaften in digitaler Form, kurz: DH. Wir treffen uns zu einem lockeren Kennenlernen und Gedankenaustausch. Was ist Euer Interesse an den DH, wo verortet Ihr Euch in der Chaosfamilie? Welche Themen des 39C3 k\u00f6nnten f\u00fcr die DH relevant sein - und umgekehrt?", "description": "Digital Humanities: Forschung zu Literatur, Geschichte, Sprache, Kunst, Musik in digitaler Form - von Rechercheprozessen \u00fcber Analysemethoden bis hin zu Publikationsformen. Als Br\u00fcckendisziplin zwischen IT und geisteswissenschaftlichen F\u00e4chern operieren die \"DH\" aber nicht nur anwendungsbezogen, sondern auch transformativ: Sie evaluieren kritisch im Diskurs, welche Aspekte der fortlaufenden Digitalisierung f\u00fcr die wissenschaftliche Praxis f\u00f6rderlich genutzt werden k\u00f6nnen.\r\n\r\nDamit sorgen sie aber auch stets f\u00fcr Aufregung, wenn es darum geht, etablierte wissenschaftliche Prozesse zu st\u00f6ren: Etwa, wenn es um Open Source, Open Science, Open Data geht sowie um FAIR- und CARE-Prinzipien oder um nichtpropriet\u00e4re Standards. Wir begleiten als Digital Humanists somit nicht nur die Digitalisierung von Kulturdokumenten und Wissenschaft(sb\u00fcrokratie), sondern auch von Arbeitsprozessen mit dem Ziel, in diesem Zuge auch eine freiere, fairere, nachhaltigere, zug\u00e4nglichere, offenere und digitalsouver\u00e4nere Wissenschaftspraxis zu etablieren.\r\n\r\nWir schlie\u00dfen an die Meetups der letzten beiden Jahre an und treffen uns wieder zu einem lockeren Kennenlernen und Gedankenaustausch (siehe unser Pad dazu: https://etherpad.wikimedia.org/p/DHMeetup). Willkommen sind alle, die an den DH interessiert sind - und vermutlich sind viele bereits in der Chaos-Familie, ohne dass wir voneinander wissen. Wo in der Chaos-Familie verortet Ihr Euch? Welche Themen des 39C3 k\u00f6nnten f\u00fcr die DH relevant sein und umgekehrt? Kommt zahlreich! Nach Bedarf k\u00f6nnen wir weitere Meetups oder SoS zu spezifischen Themen organisieren.", "recording_license": "", "do_not_record": true, "persons": [{"guid": "b17ad620-8949-58a2-a9dd-74bc9433a4a8", "id": 367, "code": "EYQDDG", "public_name": "Ulrike Wuttke", "avatar": null, "biography": "Digital Humanities - WissKomm - InfoWiss - jenseits des Funklochs zwischen Potsdam und Berlin!", "answers": []}, {"guid": "c37650f7-c396-552b-83b3-cd16f450c160", "id": 376, "code": "JWYQ7P", "public_name": "Torsten Roeder", "avatar": "https://pretalx.freifunktag.de/media/avatars/dino_VnRL5Pt.png", "biography": "Torsten Roeder works at the University of Wurzburg and is specialized on digital heritage research. His work in digital editing and textual history made him a member of the TEI Technical Council. Recently, he started a Retro Computing Lab at his department which is used for studying the digital culture of the 1980s and 1990s. He also holds a PhD in musicology and plays some guitar, and enjoys gardening. Jack of all trades, master of none.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/TKNUDC/", "id": 454, "guid": "4ba1ba56-5bd4-55ff-a224-78e593de1389", "date": "2025-12-29T16:00:00+01:00", "start": "16:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/TKNUDC/2511_ekpwzzi.png", "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-454-p2panda-project-updates-meetup", "title": "p2panda - Project updates & meetup", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "en", "abstract": "A lot has happened in [p2panda](https://p2panda.org) land this year (Group Encryption, Confidential Discovery & Sync, a new networking stack, Access Control CRDT, [Reflection](https://github.com/p2panda/reflection) text editor in GTK, founding of the [Modal](https://modal.cx/) collective, [DWeb Seminar](https://dwebseminar.org), [Walkaway lectures](https://pads.offline.place/p/r.06dda241c03ad92f2a55c47f4bbdd419) and more!) and there's a lot planned for next year (high-level interfaces, p2panda-node and -client and a system service)!\r\n\r\nThis session is a chance to catch up on the latest news and plans with a 20~ min update in the beginning and then have time to ask questions and discuss all things around p2panda.\r\n\r\np2panda is a collection of building blocks to build p2p / local-first applications with radical decentralization, walkaway and privacy as a focus.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "5e8f0941-d351-5ee4-aa25-d78e65b9ef97", "id": 389, "code": "B3KZ3Z", "public_name": "adz", "avatar": "https://pretalx.freifunktag.de/media/avatars/2450_2uetZDE.jpg", "biography": "Core-maintainer of p2panda\r\n\r\n\u2756 Fediverse: https://post.lurk.org/@adz\r\n\u2756 Website: https://adz.garden\r\n\u2756 GitHub: https://github.com/adzialocha\r\n\u2756 Codeberg: https://codeberg.org/adz", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/8YJEDJ/", "id": 464, "guid": "2cc65311-40e9-57e6-892b-d22ab16165fb", "date": "2025-12-29T17:00:00+01:00", "start": "17:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/8YJEDJ/38c3-wohnzimmer-lounge_ieYYig4.jpg", "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-464-fr-eine-nachhaltige-global-gerechte-digitalisierung-b-b-community-meet-up", "title": "F\u00fcr eine nachhaltige, global gerechte Digitalisierung- B&B Community Meet-Up", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Du bist schon Teil von Bits & B\u00e4ume oder interessierst dich Bits & B\u00e4ume kennen zu lernen? Komm beim T\u00e4glichen Meetup zum Austausch und Vernetzen zu Themen globaler Gerechtigkeit und digitaler Selbstbestimmtheit.", "description": "Du bist schon Teil von Bits & B\u00e4ume oder interessierst dich Bits & B\u00e4ume kennen zu lernen? Komm beim T\u00e4glichen Meetup zum Austausch und Vernetzen zu Themen globaler Gerechtigkeit und digitaler Selbstbestimmtheit.", "recording_license": "", "do_not_record": false, "persons": [{"guid": "08eeb93b-4e8b-5e66-bd02-7524a93c92f9", "id": 368, "code": "9MKSSX", "public_name": "benks", "avatar": null, "biography": "FIfF Berlin", "answers": []}], "links": [], "attachments": [], "answers": []}], "Bits&B\u00e4ume Workshop Area": [{"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/ZAE8ZW/", "id": 439, "guid": "a253e48b-7a74-5de5-809a-3c7e3e665566", "date": "2025-12-29T11:00:00+01:00", "start": "11:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/ZAE8ZW/dev_exp_EReeoCz.jpg", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-439-promptbastelei-und-andere-berlebensstrategien", "title": "Promptbastelei und andere \u00dcberlebensstrategien", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Wie f\u00fchlt sich Coden an, wenn immer eine KI im Tab daneben sitzt? In dieser Session wollen wir mit euch eure Erfahrungen diskutieren. Wir bringen Fragen aus unseren Fallstudien mit, ihr eure Alltagspraxis als Entwickler:innen: Wo setzt ihr KI konkret ein, wo lasst ihr sie bewusst drau\u00dfen, wie ver\u00e4ndert sie euren Workflow, eure Zusammenarbeit im Team und euer Rollenverst\u00e4ndnis als Dev?", "description": "Alle reden \u00fcber KI als Gamechanger, aber wie f\u00fchlt es sich an, wenn man als Dev mittendrin steckt? In unserer Session \u00f6ffnen wir einen Raum, in dem Forschung und Programmierpraxis zusammenkommen. Wir bringen erste Fragen und Muster aus unseren wissenschaftlichen Fallstudien in Softwareunternehmen mit, ihr eure t\u00e4glichen Erfahrungen aus Projektstress, Legacy Code und Promptbastelei. \r\n\r\nGemeinsam wollen wir rekonstruieren, wie KI konkret in eure Pipelines rutscht, wie ihr mit Black Box Momenten umgeht, warum ihr bestimmten Outputs vertraut und anderen nicht und welche neuen Routinen sich im Team herausbilden. Uns interessiert, was ihr gelernt habt, was ihr bewusst verweigert und wie sich euer Selbstbild als Entwickler:in vielleicht verschoben hat.\r\n\r\nStatt Hochglanzversprechen setzen wir auf eine ehrliche, kontroverse Gespr\u00e4chsrunde. Hier teilen wir Erfahrungen, beleuchten Spannungsfelder und sch\u00e4rfen unser Bild davon, welche konkrete Rolle KI derzeit in der Programmierpraxis spielt, inklusive Widerspr\u00fcchen. Bringt deshalb gerne die ungel\u00f6sten Fragen und offenen Baustellen ein, an denen ihr als Entwickler:innen und wir als Forscherinnen gemeinsam weiterdenken und -experimentieren k\u00f6nnen.", "recording_license": "", "do_not_record": true, "persons": [{"guid": "cb3fbacd-ac2c-5ab8-97b8-d7b3f5a79933", "id": 369, "code": "QGEB3Q", "public_name": "Marlene Kulla", "avatar": null, "biography": "Technik- und Arbeitssoziologin am Weizenbauminstitut", "answers": []}, {"guid": "de903f63-6cf1-5b25-8063-679758c4e8ef", "id": 370, "code": "LNR8PN", "public_name": "Ann Katzinski", "avatar": null, "biography": "Ich bin wissenschaftliche Mitarbeiterin am WZB und erforsche im Projekt \u201eGenerative KI in der Arbeitswelt\u201c, wie Tools wie Cursor die Arbeit von Programmierer:innen transformieren \u2013 von neuen Chancen bis zu tiefgreifenden Umbr\u00fcchen. Als Sozialwissenschaftlerin m\u00f6chte ich in Forschung und Praxis Themen auf den Punkt bringen, die unsere Zukunft gestalten. Wissenschaft raus aus dem Elfenbeinturm, hinein in den gesellschaftlichen Dialog.\r\n\r\nLasst uns also gemeinsam dar\u00fcber sprechen, was generative KI f\u00fcr die Arbeitswelt, die Gesellschaft und nicht zuletzt f\u00fcr uns alle bedeutet \u2013 von Codezeilen bis zu gro\u00dfen Visionen.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/SJ3UFJ/", "id": 436, "guid": "7cfa48af-7421-5a63-9e8c-24360f0c2132", "date": "2025-12-29T12:00:00+01:00", "start": "12:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/SJ3UFJ/dev_exp_QhO9FTQ.jpg", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-436-zwischen-assistenz-und-ki-selbst-kontrolle-generative-ki-im-berufsfeld-softwareentwicklung", "title": "Zwischen Assistenz und KI-(Selbst)-Kontrolle: Generative KI im Berufsfeld Softwareentwicklung", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "Wie ver\u00e4ndert generative KI den Beruf des Programmierens, und was passiert, wenn Entwickler:innen KI-Systeme nicht nur als Werkzeug, sondern als Orientierungssystem, Feedbackgeber oder Management-Ersatz nutzen? Unser Vortrag beleuchtet diese Frage anhand einer sozialwissenschaftlichen Analyse von Reddit-Diskussionen, in denen Softwareentwickler:innen offen \u00fcber ihre Erfahrungen mit generativer KI im Arbeitsalltag sprechen. Wir zeigen aus unseren Erhebungen: Generative KI wird nicht nur als Code-Assistent, sondern zunehmend als strukturierende Instanz genutzt; eine selbstgew\u00e4hlte Feedbackinstanz, die auf der einen Seite Autonomie verspricht und andererseits zugleich neue Abh\u00e4ngigkeiten schafft. In unserem Workshop  wollen wir gemeinsam dar\u00fcber sprechen, was diese Gegens\u00e4tze f\u00fcr uns in der Praxis bedeuten.", "description": "Die Softwareentwicklung gilt als Berufsfeld mit hohem Ma\u00df an Autonomie, kollaborativem Wissensaustausch und einer stark community-getriebenen Lernkultur. Mit dem Einzug generativer KI ver\u00e4ndern sich diese Strukturen grundlegend. Der spontane Austausch unter Kolleg:innen oder auf Foren wie Stack Overflow wird zunehmend durch den Dialog mit dem ChatBot ersetzt. In unserem Vortrag m\u00f6chten wir die Konsequenzen daraus beleuchten. Zuerst stellen wir drei zentrale Ergebnisse unserer empirischen Forschung vor und werden diese anschlie\u00dfend analysieren und vor dem Hintergrund arbeitssoziologischer Annahmen diskutieren.\r\n\r\nUnsere Studie basiert auf einer digital-ethnografischen Analyse von Diskussionsbeitr\u00e4gen auf Reddit, in denen sich Softwareentwickler:innen offen \u00fcber ihre Erfahrungen mit generativer KI austauschen. Daraus k\u00f6nnen wir zeigen, dass Entwickler:innen KI-Systeme in drei Rollen verorten:\r\n\r\nKI als Werkzeug:\r\nDie KI wird gezielt eingesetzt, um klar abgegrenzte Aufgaben zu erledigen. Ziel und Vorgehen stehen fest, die Kontrolle \u00fcber Prozess und Ergebnis liegt vollst\u00e4ndig bei dem Nutzenden.\r\n\r\n\r\nKI als Assistenz:\r\nDie KI unterst\u00fctzt als dialogisches Gegen\u00fcber. Sie kann Ideen liefern und Alternativen vorschlagen, aber Auswahl, Bewertung und Einordnung der Inhalte bleiben beim Menschen.\r\n\r\n\r\nKI als Proxy-Management:\r\nDie Entwickler:in weist der KI bewusst eine leitende Rolle zu und \u00fcbertr\u00e4gt ihr die Steuerung und Bewertung des eigenen Arbeitsprozesses.\r\n\r\nGerade in dieser letzten Form zeigt sich ein spannendes Ph\u00e4nomen: KI als Feedbackinstanz ohne soziale Interaktion. Kein Gatekeeping auf Stack Overflow, kein \u201eWie, das wei\u00dft du nicht?\u201c, keine Unsicherheiten vor Kolleg:innen zugeben und keine endlosen Google-Suchen, die ins Leere f\u00fchren. Stattdessen ein vermeintlich privater und immer verf\u00fcgbarer SafeSpace, in dem Unwissenheit nicht offenbart oder verurteilt wird \u2013 und man immer eine Antwort bekommt. Viele beschreiben das als Gewinn an Autonomie. Andere berichten jedoch vom Gegenteil: Von wachsender Isolation, schleichendem Kompetenzverlust und einer neuen Form von Abh\u00e4ngigkeit.\r\nDiese Ambivalenz verstehen wir als Spannungsfeld zwischen technikvermittelter Selbsterm\u00e4chtigung und Kontrolle. Aus der Perspektive der Professionssoziologie \u2013 in Anlehnung an Andrew Abbotts The System of Professions (1988) \u2013 werden berufliche Zust\u00e4ndigkeiten (\u201ejurisdictions\u201c) stets neu ausgehandelt. Dabei spielen technologische Entwicklungen eine zentrale Rolle, weil sie bestimmen, welches Wissen als Expertise gilt und wer es beanspruchen kann. F\u00fcr die Zukunft der Softwareentwicklung bedeutet dies vielleicht: Weg vom kollektiven Wissensaustausch hin zu einer individualisierten Praxis.\r\n\r\nIn unserem Workshop m\u00f6chten wir mit euch diese Dynamiken zwischen Autonomie und Abh\u00e4ngigkeit hinterfragen und diskutieren. Begegnet uns hier eine neue Form von KI-(Selbst)-Kontrolle, jenseits klassischer Hierarchien? Und welche Folgen bedeutet das f\u00fcr unser Selbstverst\u00e4ndnis, Lernprozesse und die soziale Verankerung professioneller Programmierarbeit?", "recording_license": "", "do_not_record": true, "persons": [{"guid": "cb3fbacd-ac2c-5ab8-97b8-d7b3f5a79933", "id": 369, "code": "QGEB3Q", "public_name": "Marlene Kulla", "avatar": null, "biography": "Technik- und Arbeitssoziologin am Weizenbauminstitut", "answers": []}, {"guid": "de903f63-6cf1-5b25-8063-679758c4e8ef", "id": 370, "code": "LNR8PN", "public_name": "Ann Katzinski", "avatar": null, "biography": "Ich bin wissenschaftliche Mitarbeiterin am WZB und erforsche im Projekt \u201eGenerative KI in der Arbeitswelt\u201c, wie Tools wie Cursor die Arbeit von Programmierer:innen transformieren \u2013 von neuen Chancen bis zu tiefgreifenden Umbr\u00fcchen. Als Sozialwissenschaftlerin m\u00f6chte ich in Forschung und Praxis Themen auf den Punkt bringen, die unsere Zukunft gestalten. Wissenschaft raus aus dem Elfenbeinturm, hinein in den gesellschaftlichen Dialog.\r\n\r\nLasst uns also gemeinsam dar\u00fcber sprechen, was generative KI f\u00fcr die Arbeitswelt, die Gesellschaft und nicht zuletzt f\u00fcr uns alle bedeutet \u2013 von Codezeilen bis zu gro\u00dfen Visionen.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/KSAZCE/", "id": 447, "guid": "e336224d-1f08-56b7-8b2f-9d2de5a1c418", "date": "2025-12-29T13:00:00+01:00", "start": "13:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-447-fsfe-insights", "title": "FSFE Insights", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "en", "abstract": "Join this session to gain a deeper understanding of the work of the Free Software Foundation Europe (FSFE) and how the organisation empowers users to take control of technology. We will explore FSFE\u2019s wide range of activities \u2014 from advocacy and policy work at the European level to practical initiatives such as \u201cPublic Money? Public Code!\u201d, which promotes publicly funded software being released as Free Software. Explore how we fight for Device Neutrality and how we want to spark children's interest in coding.\r\n\r\nThe session will also highlight FSFE\u2019s legal support efforts, community-building activities, and public awareness campaigns that help ensure technology remains accessible, transparent, and shaped by its users rather than by restrictive corporate or governmental control.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "b33f91e0-9f93-583d-bc74-0dce0c3c99d5", "id": 365, "code": "99DZKS", "public_name": "Ana", "avatar": null, "biography": "Ana has a background in communication and social sciences. After an internship at FSFE, she continued her career in Berlin and Madrid with various journalistic, communication and production-related experiences, and has been back at FSFE since 2022. There she focuses on communication outreach tasks as well as helping to manage the FSFE community and related events.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/XU7JMG/", "id": 451, "guid": "522dd678-a94f-5b6f-8276-e68e7c13cfc3", "date": "2025-12-29T14:00:00+01:00", "start": "14:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/XU7JMG/unified-english-images-climate_small_5GfCMlm.png", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-451-visualize-your-texts-with-wordrain", "title": "Visualize Your Texts With Wordrain", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "en", "abstract": "The Word Rain visualization technique is a development of the classic word cloud that aims to retain the simplicity of the word cloud, while at the same time making it possible to use the text visualization for exploring and comparing corpora.", "description": "https://wordrain.org\r\nhttps://github.com/CDHUppsala/word-rain", "recording_license": "", "do_not_record": false, "persons": [{"guid": "c37650f7-c396-552b-83b3-cd16f450c160", "id": 376, "code": "JWYQ7P", "public_name": "Torsten Roeder", "avatar": "https://pretalx.freifunktag.de/media/avatars/dino_VnRL5Pt.png", "biography": "Torsten Roeder works at the University of Wurzburg and is specialized on digital heritage research. His work in digital editing and textual history made him a member of the TEI Technical Council. Recently, he started a Retro Computing Lab at his department which is used for studying the digital culture of the 1980s and 1990s. He also holds a PhD in musicology and plays some guitar, and enjoys gardening. Jack of all trades, master of none.", "answers": []}, {"guid": "a0908f49-3ab7-5857-a70d-5140508851dc", "id": 384, "code": "Z9AHWB", "public_name": "Magnus Ahltorp", "avatar": "https://pretalx.freifunktag.de/media/avatars/map-profile_BJXaRh8.jpg", "biography": "Magnus started in the demo scene in the early '90s. In the later '90s, Magnus went on to free software and cryptography activism, participating in HIP '97, CCCamp 1999, HAL 2001 and WTH2005. Currently Magnus works mainly in language technology and text visualisation. Magnus also produces music and videos highlighting the climate crisis.", "answers": []}, {"guid": "797a37ef-acb3-51ce-a1e5-9dadd1b52311", "id": 385, "code": "ZDTLSH", "public_name": "Maria Skeppstedt", "avatar": "https://pretalx.freifunktag.de/media/avatars/Skeppstedt-cropped_9Zyv5V5.jpg", "biography": "Maria Skeppstedt received her PhD in Computer and Systems Sciences in 2015. After a few years of postdoctoral research in applied natural language processing, she has spent the past six years working within research infrastructures for digital humanities, developing tools for searching, processing, annotating, and visualizing terms and text. As a senior lecturer at Stockholm University, she specializes in creating new text visualization techniques tailored to the needs of researchers within the humanities.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/MRPVWV/", "id": 430, "guid": "0c7028fa-454f-5f72-a03c-1028ebc4ec84", "date": "2025-12-29T15:00:00+01:00", "start": "15:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-430-1-einfhrung-in-den-online-editor-id", "title": "Einf\u00fchrung in den Online-Editor iD", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "In dieser Session wird euch der Online-Editor iD vorgestellt werden, mit dem ihr zu OpenStreetMap beitragen k\u00f6nnt. W\u00e4hrend der Session k\u00f6nnt ihr Fragen zum Beitragen zu OpenStreetMap, dem Mappen, stellen.\r\n\r\nUm zu OpenStreetMap beizutragen, ist ein Benutzerkonto erforderlich. Gerne d\u00fcrft ihr euch vor der Session ein OpenStreetMap-Konto anlegen, dazu ben\u00f6tigt ihr nur einen Benutzernamen und eine g\u00fcltige E-Mail-Adresse.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "c765c9b7-5796-5a74-b77c-2ee51c7ce423", "id": 366, "code": "DTYAFL", "public_name": "Nakaner", "avatar": null, "biography": "OpenStreetMap contributor and software developer since 2011", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/J93HPG/", "id": 421, "guid": "29b66d3b-53ed-5610-aab7-54074e3c3275", "date": "2025-12-29T16:00:00+01:00", "start": "16:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-421-25-jahre-freifunk-2027-als-festjahr-", "title": "25 Jahre Freifunk - 2027 als Festjahr?", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "2027 wird Freifunk 25 Jahre alt. Lasst uns gemeinsam \u00fcberlegen, wie wir das feiern k\u00f6nnen.", "description": "Einige erste Ideen:\r\n* Dezentrale Veranstaltungen\r\n* 1-2 gr\u00f6\u00dfere Sachen mit internationaler Beteiligung\r\n* Werbung und Pressearbeit\r\n* Weggef\u00e4hrten aus den Anfangszeiten aktivieren.", "recording_license": "", "do_not_record": false, "persons": [{"guid": "8e904239-b684-5bc1-8fa9-2fbe3c7d6f22", "id": 7, "code": "USJAK9", "public_name": "Andi Br\u00e4u", "avatar": "https://pretalx.freifunktag.de/media/avatars/hacker-1024_oUOxCxd.jpeg", "biography": "Freifunker seit 2006\r\nSoftwareentwickler\r\nVorstand", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/99X7KF/", "id": 425, "guid": "e1200b9f-dd57-5440-8f97-b7e59ed43e6c", "date": "2025-12-29T17:00:00+01:00", "start": "17:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/99X7KF/Workshop_20250802_135028_jPGtY01.jpg", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-425-sorten-zchten-fr-dummies", "title": "Sorten z\u00fcchten f\u00fcr Dummies", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Gemeinsam entwickeln wir genetischen Code. An einem konkreten Beispiel steigt ihr selbst in die Tomatenzucht ein. Inklusive Saatgut.", "description": "Du hast zwei Pflanzen gekreuzt. Ihre Nachkommen sind wundersch\u00f6n. In der n\u00e4chsten Generation scheint der Zauber kaputt, nur wenige Exemplare besitzen das sch\u00f6ne Merkmal. Was ist passiert? Und wie kann daraus eine stabile, sch\u00f6ne Sorte entstehen?\r\n\r\nVererbung kann stark vereinfacht mit den Mendelschen Regeln erkl\u00e4rt werden, die du wahrscheinlich aus dem Bio-Unterricht kennst. Um Gem\u00fcsesorten zu z\u00fcchten, reichen sie aus:\r\n\r\nF1 hei\u00dft 1. Kindgeneration. Wenn du zwei samenfeste Sorten gekreuzt hast, mischen die Merkmale der Elternpflanzen sich gleichm\u00e4\u00dfig. In unserem Beispiel kreuzten sich eine rote und eine gefleckte Tomatensorte zu einer Generation mit rot-violett gestreiften Fr\u00fcchten.\r\n\r\nF2 hei\u00dft 2. Kindgeneration. Die Merkmale \"mendeln sich aus\", jede Pflanze wird anders bunte Fr\u00fcchte tragen. Samen von der F2-Generation bekommst du gratis in diesem Workshop.\r\n\r\nZ\u00fcchtung hei\u00dft, diese zu selektieren, bis das Streifenmuster nach Jahren samenfest wird. S\u00e4e mehrere K\u00f6rner, ernte viele Tomaten - sammle ausschlie\u00dflich Saatgut von den Rot-Violetten!", "recording_license": "", "do_not_record": false, "persons": [{"guid": "1eedb6bc-56b0-5bc2-a7e0-9946b373f763", "id": 363, "code": "EYNV9M", "public_name": "Coco", "avatar": "https://pretalx.freifunktag.de/media/avatars/Heckenbraunelle_Profilbild_wUqMdlP.jpg", "biography": "Coco kommt aus Hannover, macht was mit Software und was mit Natur.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/HB9EBD/", "id": 438, "guid": "1f43797b-7640-5227-83ac-ef70d51bf848", "date": "2025-12-29T18:00:00+01:00", "start": "18:00", "logo": null, "duration": "01:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-438-1-community-data-centers-a-workshop", "title": "Community data centers - a workshop", "subtitle": "", "track": null, "type": "Workshop 110 Minutes", "language": "en", "abstract": "What if local communities operated their own data centres? How might that look and function? To what extent would it be democratic and sustainable? Who would (not) benefit from it?\r\n\r\nIn this workshop, we would like to think through, examine and discuss alternative models for the ownership and management of collective data centres. We will take a structured look at fundamental concepts, governance issues and implications, as well as discuss parallel ideas in other areas (cooperative banks or housing, community-supported agriculture) in the hope of initiating a broad discussion about alternatives to the profit and exploitation logic of the current data centre industry. Similar approaches to data centers that already exist include Nubo (Belgium), Espora (Mexico) and Wobcom (Germany).", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "e07de72b-efac-5b65-a43c-f2941ca8d703", "id": 372, "code": "37EP8Y", "public_name": "Rainer Rehak", "avatar": "https://pretalx.freifunktag.de/media/avatars/WI_Dach_Rehak_only_HKfxX4W.jpg", "biography": "Rainer Rehak is part of the research group \u201cDigitalization, Sustainability, and Participation\u201d at the Weizenbaum Institute for the Networked Society, he is an associated researcher at the Berlin Social Science Center (WZB) and is currently doing his PhD on systemic IT security and societal data protection at the TU Berlin.\r\n\r\nHe studied computer science and philosophy in Berlin and Hong Kong and has been working on the implications of the computerization of society for over 15 years. His research fields include technology impact assessment, collective data protection, systemic IT security, state hacking, computer science and ethics, fictions of technology, digitization and sustainability, convivial and democratic digital technology, epistemics of automation, digital (de-)colonialism, and the implications and limits of AI systems.\r\n\r\nHe also publishes regularly in non-scientific outlets and is an expert witness for parliaments (e.g., the German Bundestag) and courts (e.g., the German Constitutional Court). Together with other digital policy and environmental organizations, he initiated the \u201cBits & B\u00e4ume\u201d conference series for digitalisation and sustainability. Rainer Rehak is co-chair of the Forum Computer professionals for peace and societal responsibility (FIfF).", "answers": []}, {"guid": "4d706abd-076a-5248-8134-3ba61f18ecc9", "id": 379, "code": "7RD99L", "public_name": "Nicolas", "avatar": null, "biography": "Dr Nicolas Zehner is a postdoctoral researcher at the Collaborative Research Center 1265 \u201cRe-Figuration of Spaces\u201d at Technical University Berlin, as well as associated researcher at Weizenbaum Institute and HafenCity University. Nicolas holds a PhD in Sociology from the University of Edinburgh. His research investigates the co-constitutive relationship between scientific knowledge production and urban development with a particular focus on higher education institutions.", "answers": []}, {"guid": "7fc20554-c85e-59e5-9613-d450c8a2ab14", "id": 387, "code": "RPJ9QW", "public_name": "Tara Merk", "avatar": null, "biography": "Tara is a postdoc researcher at the CNRS, Paris, an ICDE research fellow at The New School in New York and associate researcher at the Weizenbaum Institute in Berlin. Her research focuses on platform and protocol governance, DAOs and exploring alternative ownership structures for data centers. Her PhD thesis explores the process of Exit to Community, i.e. transitioning organizations and technologies in the digital platform economy into community ownership and governance.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/XMTF8P/", "id": 452, "guid": "d826b774-16c2-5d4a-86a2-df4515464ffc", "date": "2025-12-29T20:00:00+01:00", "start": "20:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/XMTF8P/signal-2025-12-15-220516_002_K1CaqfC.png", "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-452-cables-of-resistance-soziale-bewegungen-kmpfen-global-gegen-big-tech-konferenz-2026-", "title": "Cables of Resistance -- Soziale Bewegungen k\u00e4mpfen global gegen Big Tech (Konferenz 2026)", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "Wir sind Bewegungen und antikapitalistische Aktivist * innen, die eine Vielfalt an Widerstandsformen praktizieren. Wir haben genug von Amazon, Google, Microsoft, Meta, Tesla, OpenAI, Nvidia und Co.! Deshalb wollen wir interessierte Menschen, Aktivist * innen und Bewegungen zusammenbringen, uns vernetzen und lokale K\u00e4mpfe verbinden. Wir wollen unser Problemverst\u00e4ndnis vertiefen, uns \u00fcber notwendige Aktionsformen austauschen, gemeinsam Strategien entwickeln und den Widerstand vorantreiben.\r\n\r\nIn diesem Workshop diskutieren wir Strategien und stellen die Cables of Resistance Bewegungskonferenz vom 10 - 12 April in Berlin vor.", "description": "W\u00e4hrend die \u00d6kosysteme kollabieren und menschliches Leben auf der Erde immer prek\u00e4rer wird, lassen sich CEOs gro\u00dfer Tech-Unternehmen zum Spa\u00df ins All schie\u00dfen und tr\u00e4umen davon, das Universum als unsterbliche Maschinenmenschen zu kolonisieren. Sie inszenieren sich als Heilsbringer und haben f\u00fcr den Rest der Menschheit nur offenen Zynismus \u00fcbrig. Wir sehen einen massiven Angriff auf Gewerkschaften und demokratische Institutionen, die ihnen bisher zumindest noch mit Schranken drohten. Der Abbau der f\u00fcr ihre Produkte n\u00f6tigen Rohstoffen verw\u00fcstet ganze Landschaften und vertieft koloniale Ausbeutung. Mit ihren \u201esozialen\u201c Medien bef\u00f6rdern sie die Vereinzelung und den Zusammenbruch von demokratischen \u00d6ffentlichkeiten. Sie kontrollieren umfassende Infrastrukturen und setzen diese ein, um die Macht faschistischer Kr\u00e4fte zu verst\u00e4rken und einen technokratisch-autorit\u00e4ren Gesellschaftsumbau zu beschleunigen.\r\n\r\nWir sind Bewegungen und antikapitalistische Aktivist * innen, die eine Vielfalt an Widerstandsformen praktizieren. Wir haben genug von Amazon, Google, Microsoft, Meta, Tesla, OpenAI, Nvidia und Co.! Deshalb wollen wir interessierte Menschen, Aktivist * innen und Bewegungen zusammenbringen, uns vernetzen und lokale K\u00e4mpfe verbinden. Wir wollen unser Problemverst\u00e4ndnis vertiefen, uns \u00fcber notwendige Aktionsformen austauschen, gemeinsam Strategien entwickeln und den Widerstand vorantreiben.", "recording_license": "", "do_not_record": true, "persons": [{"guid": "6876dea8-c85b-5b49-b84b-0612221cabf1", "id": 386, "code": "PZKZEY", "public_name": "Rike", "avatar": null, "biography": "Hi! Ich bin Rike, Koordinatorin des Bits & B\u00e4ume Netzwerks :)", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/3NNWJF/", "id": 460, "guid": "84625c10-ccaf-5686-adab-4966d8d1a3e7", "date": "2025-12-29T21:00:00+01:00", "start": "21:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-460--un-hacking-digital-sovereignty", "title": "(Un-)Hacking Digital Sovereignty", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "en", "abstract": "As members of the Switzerland Chapter of the Internet Society we would like to bring together activists, NGOs, and businesses who strive to make our communities, states, and supranational institutions truly digitally sovereign, i.e.: As (collaborative but independent) actors connected by distributed networks powered by free software enabling the free exchange of information over open data formats.\r\n\r\nGiven that those who dislike this vision have deep pockets, excellent contacts to politicians, and marketing teams who try to give \"digital sovereignty\" a very different meaning from how we understand it (\"buy European\"), we as a community should\r\n\r\na) network to get to know the other actors who are working on this topic and be more effective **together**,\r\nb) understand what is going on elsewhere in Europe, and \r\nc) exchange news, ideas, challenges, successes and failures in influencing policy so that other activists can learn from them.\r\n\r\nCryptpad document for the session: https://cryptpad.fr/code/#/2/code/edit/9Xjq3o+57GnYbmNmGWY2fxCv/", "description": "", "recording_license": "", "do_not_record": true, "persons": [{"guid": "9a1ee328-944d-5000-a7cd-41137df13f47", "id": 396, "code": "FFS9YP", "public_name": "Alex", "avatar": null, "biography": null, "answers": []}], "links": [], "attachments": [], "answers": []}]}}, {"index": 4, "date": "2025-12-30", "day_start": "2025-12-30T04:00:00+01:00", "day_end": "2025-12-31T03:59:00+01:00", "rooms": {"Bits&B\u00e4ume Living Room": [{"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/Z7GBCX/", "id": 466, "guid": "f61a93f0-c47f-53e5-9351-14090d7c5001", "date": "2025-12-30T11:00:00+01:00", "start": "11:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-466-wie-spielt-man-eigentlich-bridge-", "title": "Wie spielt man eigentlich Bridge?", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Was haben Buster Keaton, Omar Sharif, Winston Churchill und Mahatma Gandhi gemeinsam? Sie alle waren leidenschaftliche Bridgespieler.\r\n\r\nTauche mit uns in diesem Crashkurs ein in die faszinierende Welt des bekanntesten Stich-Kartenspiels der Welt. Denn Bridge ist nicht nur das \"Spiel der alten Damen in englischen Filmen\" sondern bietet jede Menge M\u00f6glichkeiten zu knobeln, st\u00e4ndig neues zu lernen, f\u00fcr Teamwork und ausgefeilte, analoge Kommunikationssysteme.\r\n\r\nIhr lernt bei uns die Grundregeln des Spiels und k\u00f6nnt euch direkt selbst am Probleml\u00f6sen probieren. Wir haben ein paar Karten dabei, wenn ihr aber selbst Spielkarten (Franz\u00f6sisches Blatt, 52 Karten) habt, bringt gerne welche mit.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "073f15d3-9c40-5efa-8df1-071c0886a8b2", "id": 399, "code": "KE7PVL", "public_name": "Jasmin (she/her) und Luisa (she/her)", "avatar": null, "biography": null, "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/DEP8BQ/", "id": 427, "guid": "eece966e-10a7-5e18-bdcf-843cac172725", "date": "2025-12-30T12:00:00+01:00", "start": "12:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-427-fsfe-meetup-at-bits-bume-habitat", "title": "FSFE meetup at Bits & B\u00e4ume Habitat", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "de", "abstract": "You are a FSFE volunteer or you would like to know more about the Free Software Foundation Europe? Then this is the place to be. \r\n\r\nWe will be discussing current activities, future activities, and what will be happening next. You are welcome to join us for some food and drinks while sharing your ideas and learning all about the FSFE and its current activities.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "5f7ecbd8-6f6f-573b-8519-242ab484d22e", "id": 141, "code": "H8YVWH", "public_name": "bonnie", "avatar": "https://pretalx.freifunktag.de/media/avatars/bonnie_lDbJesP.png", "biography": "Bonnie Mehring hat Politikwissenschaften in Marburg studiert und arbeitet bereits seit \u00fcber 10 Jahren f\u00fcr und mit Freie Software. Durch Freie Software hat sie nicht nur ein umfangreiches Wissen \u00fcber Computer und Technologie erworben, sondern auch Verbindungen zu anderen Menschen gekn\u00fcpft. Sie nimmt gerne an verschiedenen Konferenzen und Veranstaltungen zu Freier Software teil und genie\u00dft die Gelegenheit, mit Menschen aus der Freien-Software-Gemeinschaft in Kontakt zu treten. F\u00fcr Bonnie ist es von gr\u00f6\u00dfter Bedeutung, dass inklusive und einladende Freie-Software-Gemeinschaften geschaffen werden, die es jedem erm\u00f6glichen, sich zu engagieren und zu lernen. Derzeit arbeitet Bonnie als Projektmanagerin bei der Free Software Foundation Europe und verantwortet den j\u00e4hrlichen \"I Love Free Software Day\" sowie den Programmierwettbewerb \"Youth Hacking 4 Freedom\" und ist Host des Software Freedom Podcast.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/J3LDUW/", "id": 463, "guid": "844abc66-55ff-57f0-bec7-f05abe5cbbb7", "date": "2025-12-30T13:00:00+01:00", "start": "13:00", "logo": "https://pretalx.freifunktag.de/media/39c3-bub-workshops-2025/submissions/J3LDUW/38c3-wohnzimmer-lounge_7esOGzQ.jpg", "duration": "00:50", "room": "Bits&B\u00e4ume Living Room", "slug": "39c3-bub-workshops-2025-463-global-climate-justice-digital-empowerpent-b-b-community-meet-up", "title": "Global Climate Justice & Digital Empowerpent ! B&B Community Meet-Up", "subtitle": "", "track": null, "type": "Meetup 50 Minutes", "language": "de", "abstract": "Du bist schon Teil von Bits & B\u00e4ume oder interessierst dich Bits & B\u00e4ume kennen zu lernen? Komm beim T\u00e4gliches Meetup zum Austausch und Vernetzen zu Themen globaler Gerechtigkeit und Digitaler Selbstbestimmtheit.", "description": "Du bist schon Teil von Bits & B\u00e4ume oder interessierst dich Bits & B\u00e4ume kennen zu lernen? Komm beim T\u00e4gliches Meetup zum Austausch und Vernetzen zu Themen globaler Gerechtigkeit und Digitaler Selbstbestimmtheit.", "recording_license": "", "do_not_record": false, "persons": [{"guid": "08eeb93b-4e8b-5e66-bd02-7524a93c92f9", "id": 368, "code": "9MKSSX", "public_name": "benks", "avatar": null, "biography": "FIfF Berlin", "answers": []}], "links": [], "attachments": [], "answers": []}], "Bits&B\u00e4ume Workshop Area": [{"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/FEJDL3/", "id": 457, "guid": "9f08f3cb-7b16-54ee-bba1-a4c967c8e799", "date": "2025-12-30T12:00:00+01:00", "start": "12:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-457-self-restricting-software-workshop", "title": "Self-Restricting Software Workshop", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "en", "abstract": "Computer programs run with all privileges of the running user. If your user can read your emails, then so can any other program you run. However, many programs do not need most permissions and perhaps should not have them at all.\r\n\r\nThis workshop demonstrates quite simple ways in which software can self-restrict itself. The focus will not be on foreign, potentially malicious software, but on hardening programs against misconduct and future security vulnerabilities.\r\n\r\nSeveral operating systems have developed different interfaces that restrict software beyond its normal scope. This workshop will focus on POSIX and especially OpenBSD because of its user-friendly APIs. Although other operating systems, such as Linux, will be discussed, they will not be covered in depth due to their more complicated APIs.\r\n\r\nWithin the workshop part, software with known security vulnerabilities is then patched together - usually with almost a single line. Ideally, an exploit has hardly any effect afterwards, although the vulnerability is still present. This is not intended to encourage carelessness, but rather to demonstrate the development of a further safety net for software.\r\n\r\nA basic understanding of programming is required and, more importantly, an interest in the topic. You will need to bring an SSH client, for example a laptop with (almost) any operating system.\r\n\r\nThe language will be either English or German, depending on who shows up.", "description": "", "recording_license": "", "do_not_record": false, "persons": [{"guid": "587d941b-4661-52d8-94a3-5568dd7244a4", "id": 393, "code": "JLZXLB", "public_name": "oxzi", "avatar": "https://pretalx.freifunktag.de/media/avatars/oxzi_SoT4aBd.jpg", "biography": "I am part of the FSFE's system hackers team in my free time, next to toying with software in general. At $dayjob, I am developing free software.", "answers": []}], "links": [], "attachments": [], "answers": []}, {"url": "https://pretalx.freifunktag.de/39c3-bub-workshops-2025/talk/KFTFX9/", "id": 445, "guid": "0786f21f-55be-5ebb-9030-a88b82004d83", "date": "2025-12-30T13:00:00+01:00", "start": "13:00", "logo": null, "duration": "00:50", "room": "Bits&B\u00e4ume Workshop Area", "slug": "39c3-bub-workshops-2025-445-running-a-ngo-empowered-by-with-software-freedom", "title": "Running a NGO empowered by with Software Freedom", "subtitle": "", "track": null, "type": "Workshop 50 Minutes", "language": "en", "abstract": "Can organisations with limited resources be digitally sovereign and still provide modern services? It is not trivial, but the FSFE proves it's possible. In this workshop we want to share our story and hear from you how you are running your NGO on FreeSoftware.", "description": "Since its founding more than 20 years ago, the FSFE has been pursuing this way. Right from the start, we have relied on Free Software although it sometimes meant not being able to use and offer trendy services. Also, given the limited resources, we constantly have to choose between useful features and maintainability.\r\n\r\nAnd still, neither is our infrastructure perfect nor is it 1:1 transferable to other organisations. But we think it's important that organisations exchange their experiences and learning, especially when it's about something as important as software freedom. \r\n\r\nYou can find a deep dive of the FSFE IT infrastructure in [our news article from 2021](https://fsfe.org/news/2021/news-20211203-01.html)", "recording_license": "", "do_not_record": false, "persons": [{"guid": "35bfc217-276d-598f-b5c2-4a084b134df6", "id": 361, "code": "NLMSZP", "public_name": "Tobias", "avatar": "https://pretalx.freifunktag.de/media/avatars/Southpark-Tobias-FSFE_z1p2YKU.png", "biography": "FLOSS Enthusiast from Berlin, Fediverse Ambassador, working for the FSFE", "answers": []}], "links": [], "attachments": [], "answers": []}]}}]}}}