Hacktoberfest Hack Day Berlin 2026
About
Hacktoberfest Hack Day Berlin 2026 x Code Club Berlin x Hoobit
Join us for a full day of building with open-source AI. This Hacktoberfest 2026 Hack Day brings students, developers, and open-source enthusiasts together to explore open-weight models, open-source tools, and hands-on hacking.
Whether you’re writing your first line of code or you’re an experienced developer, there’s a place for you here. No prior AI experience needed.
What to expect:
- Hands-on hacking with open-source AI tools and open-weight models
- Mentors available throughout the day for support and guidance
- A structured schedule with dedicated time for building, lunch, and presentations
- Live project presentations and judging at the end of the day
- Prizes, swag, and a great community vibe
What to bring:
Your laptop, charger, and a GitHub account. Bring your curiosity too, you don’t need to be an AI expert to take part.
Come build, learn, and celebrate open source with us. Happy hacking!
Sponsors
Proudly supported by CodeCrafters. Winning teams receive CodeCrafters VIP memberships (1st place: 2-year VIP, 2nd place: 1-year VIP, 3rd place: 6-month VIP), giving full access to all CodeCrafters challenges including Git, Redis, and SQLite.
Also supported by n8n, the open-source workflow automation tool. Every participant gets a voucher for one month of n8n, redeemable until one week after the event. The team that wins the “Best Use of n8n” challenge receives one year of n8n Cloud Pro for every team member.
Please Note: This event is only open to participants aged 13 to 23.
Prize Categories
2 categories- View Best Open-Source AI Project
Best Open-Source AI Project
Exclusive Hacktoberfest 2026 Winner DEV Badge & MLH Swag Bag
Build an original project that uses open-source or open-weight AI as an important part of how it works. Teams could create an agent skill, build with an open-weight large or small language model, or build or adapt an open-source model harness.
Build with DigitalOceanView category - View Best Use of n8nEvent prize
Best Use of n8n
Build a project that uses n8n as an important part of how it works.
Teams could automate a workflow, connect multiple tools and APIs
together, or build an agent-style process using n8n as the backbone.
These are examples within one challenge, and teams may combine them.n8n must be an important part of the project, not just a small add-on.
The project must be published in a public GitHub repository.
The workflow itself (exported from n8n) must be included in the
repository so the judges can review how it was built.View category