Lee Reilly
Senior Program Manager, GitHub Developer Relations. Open source hype man, AI whisperer, hackathon and game jam wrangler. I write && manage programs, support dev communities, and occasionally ship something.
Celebrate open source this October by participating in Hacktoberfest, a month-long festival of code organized by our friends at DigitalOcean and hosted on GitHub. To participate, simply open a pull…
Celebrate open source this October by participating in Hacktoberfest, a month-long festival of code organized by our friends at DigitalOcean and hosted on GitHub.
To participate, simply open a pull request and contribute to any open source project. You can fix a bug, add a feature, or even improve some documentation. If you’ve never contributed to an open source project before, check out our contributing to open source guide.
Once you’ve made your contribution, tell the world about it with the #hacktoberfest hashtag on Twitter, Facebook, or Instagram.
If you make four pull requests by October 31st, you’ll get the satisfaction of sharing your code with the world—and a t-shirt, of course.
To make your mark on open source (and secure your Hacktoberfest t-shirt) please visit https://hacktoberfest.digitalocean.com/ for more details.
Discover the latest trends and insights on public software development activity on GitHub with data from the Innovation Graph through Q3 2025.
Read GitHub’s position on the European Open Digital Ecosystem Strategy and learn how to participate.
Now in technical preview, the GitHub Copilot SDK can plan, invoke tools, edit files, and run commands as a programmable layer you can use in any application.