Easier said than done, obviously. And even with docker images and Infra as Code and pinned builds and virtual environments, it is difficult to be absolutely sur

Easier said than done, obviously. And even with docker images and Infra as Code and pinned builds and virtual environments, it is difficult to be absolutely sure about the last 1% of the environment, and it requires a ton of effort and engineering discipline to properly maintain. Reducing the number of environments the team has to maintain means by definition more time for each environment.