Codespaces provide instant developer environments right from your repo. With a Codespace you can get the full VS Code experience inside of GitHub so you can write, build, test, and debug your code all from the browser. To sign up for the waitlist for Codespaces beta, go to https://github.com/features/codespaces.
We’re still early on in the beta and will continue rolling out Codespaces to new users. Please do not use the forum to request access, and as a policy we will close any posts that are requests for access. We can’t wait to have more users in our beta, but for right now we are capping the number of users and progressively adding more with time.