Plant A PR: Open-Source Sprint for Sustainability

Article
Author

Alice Heiman

Published

February 8, 2026

Sustainability-focused open-source projects play a critical role in developing tools for human and planetary health, but many struggle to attract consistent contributors.

At the same time, students and software developers are eager to make a meaningful impact, yet often lack clear entry points for contributing in small, traceable ways. While hackathons can foster innovation and community, they are frequently speculative and focused on demos rather than shipped code.

This short post outlines a focused alternative.

What is Plant a PR?

“Plant a PR” is a short, collaborative sprint where participants contribute pull requests to sustainability-focused open-source projects.

Similar to a mapathon, participants work individually or in small groups to complete clearly scoped issues in existing repositories. Projects can be sourced from Climate Triage with clear “Good First Issues.”

One pull request (PR) = one tree planted in the digital world

By contributing to established projects, participants create immediate, real-world impact while learning practical open-source collaboration skills.

The Plant-A-PR Event Format

Introduction (5-10 minutes) - Overview of the Plant a PR concept and the pre-selected open-source projects for the sprint.

Open-Source Crash Course (15-20 minutes) - Guided walkthrough of GitHub fundamentals, including issues, forking repositories, and submitting pull requests.

Contribution Sprint (1-3 hours) - Participants work solo or in small teams to complete and submit as many pull requests as possible.

Conclusion (5 minutes) - Group wrap-up highlighting total pull requests submitted, reflections, and key learnings.

Looking Ahead

The Plant-A-PR event format can be used to gather participants interested in the intersection of software and sustainability. Similar to tree planting initiatives, communities such as schools can establish leaderboards to motivate participants.

References

  • Cover photo by Wolfgang Hasselmann on Unsplash. Available at https://unsplash.com/photos/a-red-tree-in-the-middle-of-a-purple-field-3dyIfpZLHEA?utm_source=unsplash.