[plicense]

To summarize:

1. Your build pipeline has a lot of hermetic actions.

2. To speed it up, you execute these actions remotely on isolated environments, cache the results and reuse when possible.

Pretty neat.

You might want to look into https://goo.gl/TB49ED and https://console.cloud.google.com/marketplace/details/google/... if you need a managed service to do just that.