DevDay Community Hackathon: Berlin
Hosted by Codex Community Events + Max Jendrall + Pauline P. Narvas
Register with organizer
What to look forward to
Hosted by Max Jendrall, a local OpenAI Codex Ambassador, this community-led hackathon will bring developers, students, founders, and go-to-market builders together to create with Codex and ChatGPT across three tracks. Attendees will exchange practical workflows, advance projects, and may have a chance to win a ticket to DevDay Exchange.
Inside the event
Join us for DevDay Exchange Community Hackathon: Berlin, hosted by Max Jendrall, your local OpenAI Codex Ambassador in Berlin!
Build something useful with Codex and ChatGPT alongside Berlin's developers, students, founders and go-to-market builders.
This community-led hackathon is a chance to explore ideas and tools from DevDay, exchange practical workflows and find collaborators ahead of Berlin's official DevDay Exchange and maybe get a chance to win a ticket to the DevDay Exchange on the 26th.
Saturday, 24 October 2026 · 10:00-18:00 CEST.
The plan includes Developer, GTM and Founder tracks, all centred on building with Codex. The detailed timetable and track-lead assignments will be confirmed before the final announcement.
Bring a laptop, a project idea or a work in progress, and spend the day making progress with other builders.
Whether you use Codex and ChatGPT every day or are still exploring agents, you're welcome to apply. You don't need a finished project: tell us what you've built so far, or what you'd like to try.
Registration
Attendance is free and subject to host approval. Please include your LinkedIn profile when applying. The additional account, organization, food-planning, company/role and project questions are optional. Never enter API keys or secrets.
Berlin, Germany
Venue listed by the organizer · Berlin, Germany. Confirm the final address before traveling.
Open in Google Maps ↗Discovered through Cerebral Valley. Details come from the event listing and the organizer page; registration is managed by the organizer.
Last checked: Oct 21, 2026. Confirm current availability before making plans.
Organizer page checked: Oct 21, 2026. Check registration for the latest details.