Using arm64 on GitHub Actions

Question

I can't seem to get a straight answer to this question.

I want to use GitHub Actions to automate an installation script on macOS running on arm64.

Is this possible today?

Is there an alternative runner with the arm64 architecture that replicates that of the M1/M2 chips?

Answer 1

https://github.com/actions/runner/releases has "OSX arm64 (Apple silicon)".

So, while GitHub hosted runners might not land on M1/M2 chip yet, you can use self-hosted runners on your own.

Update: ARM64 runners from GitHub itself are available as public beta, since Oct 2023