Hacktoberfest Hack Day Madrid
Hacktoberfest 2026
Diego de leon 47 Madrid, Madrid 28021 Spain
Event Description
Hacktoberfest Madrid 2026 es un Hack Day presencial y gratuito para gente con ganas de construir cosas con open source y AI.
Durante la tarde vamos a trabajar en equipos, probar herramientas y modelos open-weight, armar proyectos y cerrar con demos de lo que salió. No hace falta venir con equipo ni con una idea cerrada: la idea es conocer gente, experimentar y construir algo juntos.
Si te interesa open source, AI, programar, aprender algo nuevo o simplemente pasar una tarde rodeado de gente tech, sos más que bienvenido.
Who can attend?
Locations have different requirements for who can attend. This location is open to the following:
Links & Resources
Agent Skills Explained: What They Are, What They Aren't, and How to Use Them
Overview of the Agent Skill Open Standard and SKILL.md authoring.
Open link →A Developer's Guide to Open-Weight LLM API Integration
Guide to deploying and integrating large open-weight LLMs.
Open link →How to Run Google's Gemma 4 Locally with Ollama
Local setup and edge execution for models under 10B parameters.
Open link →Hermes Agent: A Practical Guide
Setting up and orchestrating workflows using open-source agent harnesses.
Open link →Hosted by
Lara Diaz and Santiago Persico are independent developers and community organizers based in Madrid. We are organizing a free, in-person Hacktoberfest Hack Day focused on open source, open-weight AI, collaboration, and building projects with the local tech community.