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.

Drag-and-drop is a highly interactive and visual interface. We often use drag-and-drop to perform tasks like uploading files, reordering browser bookmarks, or even moving a card in solitaire.

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.

We’ve made improvements to the way users of assistive technology can interact with and navigate lists of issues and pull requests and tables across GitHub.com.

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.

A peek under the hood of GitHub Advanced Security code scanning autofix.

The npm engineering team recently transitioned to using GitHub Codespaces for local development for npm registry services. This shift to Codespaces has substantially reduced the friction of our inner development loop and boosted developer productivity.

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.

GitHub uses MySQL to store vast amounts of relational data. This is the story of how we seamlessly upgraded our production fleet to MySQL 8.0.

Use our new open source Trace2 receiver component and OpenTelemetry to capture and visualize telemetry from your Git commands.

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.