[thinkafterbef]

The 4x faster came from our first attempt - writing a complete CI (UI + infrastructure). The performance improvements mainly came from good hardware, a more aggressive cache on dependencies, and a docker layer cache.

The 2x improvements is referring to our latest product BuildJet for GitHub Actions, which is a plug-in runner for your existing GitHub Action pipeline.

I hope that clarified it.

[typingmonkey]

Yes this clarifies it, thank you.