The commit history of a popular open source project tells a story. Feature commits: hundreds. Bug fix commits: dozens. Documentation commits: seventeen, most of them from two contributors, several of them fixing typos. The project has 8,000 GitHub stars. The getting-started guide assumes you already understand three concepts that are never explained. The FAQ hasn’t been updated since 2022.
The documentation gap in open source is not a talent problem. The contributors who built this project are capable writers. It’s a structural problem.
Documentation doesn’t generate the same excitement as features. A new contributor who ships a clever optimization gets stars, comments, and gratitude. A new contributor who rewrites the getting-started guide gets a polite “thank you” and maybe a review that takes two weeks because nobody prioritized it. The incentive structure pushes toward code and away from docs.
The person who understands the project well enough to document it is usually the person who built it — and who stopped being a beginner years ago. They document what still surprises them, not what confused them then. The things they’ve absorbed so completely that they feel obvious are the exact things a new user needs explained. The gap is invisible from the inside.
Projects that handle documentation well treat it as a first-class contribution. Django, Python, and Kubernetes are frequently cited as examples. Their documentation has style guides, review processes, and dedicated maintainers. A documentation PR gets reviewed with the same seriousness as a code PR. The documentation is versioned alongside the code, tested for broken links, and updated as part of the release process.
The Write the Docs community has resources specifically for open source documentation, including guides for building documentation culture and practical advice for maintainers who want to make documentation contributions easier. One of the simpler recommendations: write a documentation contribution guide. A contributor who wants to help with docs needs to know the style conventions, the tooling setup, and the review process. Without that guide, even willing contributors give up before they start.
Documentation is also a contributor recruitment tool. A well-documented project is easier to contribute to: not just easier to document, but easier to understand well enough to contribute code. A new contributor who can read clear documentation about the architecture and the design decisions can start contributing faster than one who has to reverse-engineer everything from the source.
Open source projects often talk about lowering the barrier to contribution. Documentation is one of the most direct ways to do that. It tells potential contributors that the maintainers value their time, have thought about onboarding, and want help from people who haven’t been in the project since the beginning.
That’s a message worth sending clearly.