Hacktoberfest
The October open source event that ran for a decade as a pull request challenge. From 2026 it is stewarded by Major League Hacking and DEV and has been reshaped into online and local events about building with open source AI, such as open weight models and agents, instead of counting pull requests. Join it for a structured reason to learn and meet other builders each October, not for the old four pull requests and a t-shirt format.
Community
Other
Major League Hacking and DEV
October
Beginner
Free
The October open source event that ran for a decade as a pull request challenge. From 2026 it is stewarded by Major League Hacking and DEV and has been reshaped into online and local events about building with open source AI, such as open weight models and agents, instead of counting pull requests. Join it for a structured reason to learn and meet other builders each October, not for the old four pull requests and a t-shirt format.
Ready to start?
Opens on Major League Hacking and DEV in a new tab.
Stuck on something specific?
Writing only gets you so far. If you want an answer to your situation rather than the general case, book a session and we will work through it together. Sessions are free for approved Sefism members, and a few slots open each week.
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New writing, resources and project ideas land here first.