One of the questions that I keep hearing is "[H]ow do I start if I already have a fully deployed environment?" I attempted to answer that question in https://macadminmusings.com/blog/2026/03/03/from-clickops-to-code-terraforming-a-live-system/. I try to take a high level view and define the steps to take to avoid breaking everything. I hope it helps to guide people onto a path toward success.

