Talks & Presentations

• 2026
  • 🇬🇧 XMPP - XEP-0490: Message Displayed Synchronization, IETF 126
    recording, slides
  • 🇩🇪 UnifiedPush, CLT 2026
    event page, recording, slides
  • 🇬🇧 XMPP - XEP-0202: Entity Time, IETF 125
    recording, slides
  • 🇬🇧 UnifiedPush - Push notifications. Decentralized and Open Source, FOSDEM 2026
    event page, recording, slides
• 2025
  • 🇩🇪 UnifiedPush, MRMCD 2025
    event page, recording, slides
  • 🇩🇪 UnifiedPush, Datenspuren
    event page, recording, recording (mirror), slides
• 2024
  • 🇬🇧 Intro to Ltt.rs: A JMAP client for Android, FOSDEM 2024
    event page, recording, slides
• 2023
  • 🇩🇪 Der Angriff auf jabber.ru, XMPP Meetup Berlin
    recording, slides
• 2021
  • 🇬🇧 Intro to JMAP: A spiritual successor to IMAP & Submission, XMPP Happy Hour
    recording, slides
• 2020
  • 🇬🇧 Jingle & WebRTC: An introduction to audio/video calls with XMPP, XMPP Meetup Berlin
    recording, slides
• 2019
  • 🇬🇧 The state of the XMPP Community, FrOSCon 2019
    event page, recording, slides
  • 🇩🇪 XMPP for developers, XMPP Meetup Dresden
    slides
  • 🇦🇹 Regulierung von Instant Messengern, PrivacyWeek Wien
    event page (archive.org), recording, slides
  • 🇬🇧 JMAP & Ltt.rs, 36C3
    recording, slides
• 2018
  • 🇩🇪 Open Source darf auch was kosten – vom Hobby zum Beruf, CLT 2018
    event page, recording, slides
  • 🇸🇬 Federated Instant Messaging with Jabber/XMPP, FOSSASIA 2018
    event page, recording, slides
  • 🇬🇧 The Ecosystem is Moving, Varia
    event page, slides
  • 🇩🇪 Open Source darf auch was kosten, FrOSCon 2018
    event page,recording, slides
  • 🇩🇪 Copying WhatsApp the right way, Datengarten
    event page, recording, recording (mirror), slides
• 2017
  • 🇩🇪 Jabber/XMPP: Instant Messaging selber in die Hand nehmen, MRMCD 2017
    event page, recording
  • 🇬🇧 The Past, The Presence & The Future, 34C3
    recording, slides
• 2016
  • 🇬🇧 Settling the IM war, FrOCSCon 2016
    event page, recording
  • 🇩🇪 Beenden wir den Krieg der Instant Messenger, Datenspuren 2016
    event page,recording
• 2015
  • 🇬🇧 XMPP 2015 - challenges of modern day instant messaging, FrOSCon 2015
    event page, recording
• 2009
  • 🇩🇪 Verteiltes Suchen – Ein aktueller Überblick, CLT 2009
    event page