According GitHub [Recommended autoscaling solutions](https://docs.github.com/en/actions/hosting-your-own-runners/autoscaling-with-self-hosted-runners#recommended-autoscaling-solutions), this solution doesn't support **Pull-based autoscaling** feature. I'm not sure to fully understand what is this feature, but it could be nice to support it 😁 (as the other major solution). (No many historic found from [af32d](https://github.com/github/docs/commit/af32d9ab4250324cc0f9e4fe3d1c24077ddacd1e)).