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If you have a GitHub repository and you have GitHub Actions enabled, you probably use GitHub-hosted runners for CI. That is the default for many projects because it is simple: add a workflow, write runs-on: ubuntu-latest, and GitHub gives you a machine.
That default is convenient, but it also has limits. GitHub Actions can be slow or down for maintenance, the hosted machines are generic, and GPU access is not something most open-source projects can just turn on. For Trackio, those limits started to matter. We wanted both reliable CPU CI for basic unit tests and frontend checks, but also GPU CI for tests that need to run on actual CUDA hardware.
So built an alternative: keep GitHub Actions in charge of CI, but run the jobs on Hugging Face Jobs.
The result: Trackio's CI now runs on Hugging Face Jobs and streams back real-time logs, cutting our CI time for CPU jobs by about 30% and enabling a whole new test suite that runs on GPU machines!
