We love open source, but not enough to share code for our own app, says GitHub

The GitHub app however is aimed at all the other things developers do, such as raising or commenting on issues, approving pull requests (requests to merge new code), and responding to notifications such as @mentions.

In an interview, Nystrom and GitHub designer Brian Lovin explained how they mocked up a design for one platform and had the team on the other platform replicate it with appropriate adjustments. The downside of the approach is that the app works differently from visiting the GitHub website with a mobile browser, meaning more to learn.