How GitHub builds GitHub

Explore the iterative development journey of GitHub’s sub-issues feature. Learn how we leveraged sub-issues to build and refine sub-issues, breaking down larger tasks into smaller, manageable ones.

GitHub uses GitHub to build GitHub, and our CLI extensions are no exception. Read on to find out how we built the GitHub Skyline CLI extension using GitHub!

Learn how we’re experimenting with open source AI models to systematically incorporate customer feedback to supercharge our product roadmaps.

Solving and staying ahead of problems when scaling up a system of GitHub’s size is a delicate process. Here’s a look at some of the tools in GitHub’s toolbox, and how we’ve used them to solve problems.

Pushing code to GitHub is one of the most fundamental interactions that developers have with GitHub every day. Read how we have significantly improved the ability of our monolith to correctly and fully process pushes from our users.

Learn how GitHub used macOS and Apple Silicon runners for GitHub Actions to build, test, and deploy our iOS app faster.

As part of GitHub’s dedication to accessibility, we expanded our internal accessibility program and scaled up our assessment process to help remove or lower barriers for users with disabilities. Then, we empowered employees from various disciplines to drive accessibility efforts within their teams.

Here’s how merge queue transformed the way GitHub deploys changes to production at scale, so you can do the same for your organization.

Learn how we’re managing feature releases and establishing best practices within and across teams at GitHub using GitHub Projects.

The Fundamentals program has helped us address tech debt, improve reliability, and enhance observability of our engineering systems.

Our latest solution to the ubiquitous engineering problem of integration testing in a distributed service ecosystem here at GitHub.

Take CODEOWNERS and GitHub teams to the next level. Learn about how GitHub engineering solves the age old problem of who owns what.

Learn about how we run a scalable vulnerability management program built on top of GitHub.

Learn more about how we use GitHub to build GitHub, how we turned our guiding communications principles into prescriptive practices to manage our internal communications signal-to-noise ratio, and how you can contribute to the ongoing conversation.

Recently, we’ve been working to make our CI experience better by leveraging the newly released GitHub feature, Actions larger runners, to run our CI.