Technical interviews via Codespaces
Codespaces is a great tool for technical hiring exercises and helps level the playing field for candidates.
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Engineering
Over the course of a year, GitHub’s engineers make millions of commits across all of our internal repositories, process billions of API requests, and run tens of thousands of deployments across the internal apps that power GitHub’s services. We use many of GitHub’s products and plenty of other open source tools to operate at this scale. Here’s an inside look into how we do it.
A brief history of code search at GitHub
This blog post tells the story of why we built a new search engine optimized for code.
Improving GitHub code search
Today, we are rolling out a technology preview for GitHub code search, the next iteration for search, discovery, and navigation on GitHub.
Using ChatOps to help Actions on-call engineers
You can multiply the impact of your domain experts by building their common workflows into ChatOps.
Partitioning GitHub’s relational databases to handle scale
In 2019, to meet GitHub’s growth and availability challenges, we set a plan in motion to improve our tooling and ability to partition relational databases.
GitHub’s Engineering Team has moved to Codespaces
Over the past months, we’ve left our macOS model behind and moved to Codespaces for the majority of GitHub.com development.
Why (and how) GitHub is adopting OpenTelemetry
Over the years, GitHub engineers have developed many ways to observe how our systems behave. We mostly make use of statsd for metrics, the syslog format for plain text logs…
Security keys are now supported for SSH Git operations
GitHub has been at the forefront of security key adoption for many years. We were an early adopter of Universal 2nd Factor (“U2F”) and were also one of the first…
How we use Web Components at GitHub
At GitHub, we pride ourselves on delivering a first-class developer experience. A considerable part of our work is on our front end, which we strive to keep as lightweight, fast,…
How we use GitHub Actions to manage GitHub Docs
👋 Hello from the GitHub Docs team! We build everything you see at docs.github.com. Over the past year, we’ve written a bunch of GitHub Actions workflows to do some fun…
How we ship code faster and safer with feature flags
At GitHub, we’re continually working to improve existing features and shipping new ones all the time. From our launch of GitHub Discussions to the release of manual approvals for GitHub…
Behind GitHub’s new authentication token formats
We’re excited to share a deep dive into how our new authentication token formats are built and how these improvements are keeping your tokens more secure. As we continue to…
How we scaled the GitHub API with a sharded, replicated rate limiter in Redis
About a year ago, we migrated an old rate limiter in order to serve more traffic and accommodate a more resilient platform architecture. We adopted a replicated Redis backend with…
How GitHub Actions renders large-scale logs
Rendering logs in a web UI might seem simple: they are just lines of plain text. However, there are a lot of additional features that make them more useful to…
Scripting with GitHub CLI
It has been a year since we’ve launched the first public release of GitHub CLI. Since, we have added functionality to manage your repositories, comment on issues, enable auto-merge for…
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