search for: git_ssh_command

If you want to use your key to authenticate, you need to set your remote URL to the SSH one: git remote set-url --push origin git at github.com:llvm/llvm-project.git You can get the SSH URL by going to https://github.com/llvm/llvm-project/ and clicking on Clone or download to get the appropriate URL ... it should give you the option to Clone with SSH. I've not had a ton of luck with HTTPS