Thanks for your feedback! As more further investigate, the DevTest Labs supports VSTS Git and GitHub today. I’ve added this into the backlog. Given different Git repo offers different client for Labs to use and connect to, it’d be helpful if you could share with us which one you want to support first, so that the Labs can support them one by one. Thanks!
An error occurred while saving the commentSam commented
Also I would say it would be nice to be able to diagnose connectivity issues to GitHub repositories, I am currently having issues adding my public GitHub to our Azure DevTest labs.