> Even an improvement of a few second per iteration can compound into hours of time savings, both for you and your fellow contributors

Completely agree with this. I’ve recently been dealing with building few CI workflows, and honestly, I was very frustrated by how much time everything was taking. A lot of that frustration came from having nothing to do while waiting for the CI to pass, and I could clearly see how much time all of it was costing me.

Looking back, I realize that I’ve wasted far more time during my normal development workflow because of small inefficiencies here and there.

This has led me to believe that the human mind is much more prone to thinking linearly than in a compounding way.