The ARM nodes which are exactly the topic of this submission could be a place where you can self-host your GH runners :)
https://github.com/actions-runner-controller/actions-runner-... works quite well with its autoscaling. You could create a zonal GKE cluster, which is in free tier, and create a small spot vm node pool with ARM nodes. It wouldn't be entirely free but it would cost quite low amount of money.
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The ARM nodes which are exactly the topic of this submission could be a place where you can self-host your GH runners :)
https://github.com/actions-runner-controller/actions-runner-... works quite well with its autoscaling. You could create a zonal GKE cluster, which is in free tier, and create a small spot vm node pool with ARM nodes. It wouldn't be entirely free but it would cost quite low amount of money.