A lot of infrastructure exists because somebody once clicked through a console. It works, nobody can explain all of it, and rebuilding it would be an archaeology project.
Describing it in code changes that. The environment can be rebuilt from scratch, every change is reviewed like any other change, and the setup stops living in one person's memory.
Existing infrastructure gets imported and described gradually rather than torn down. You can still change things quickly, the difference is there is a record of what changed and why, instead of a mystery setting nobody can account for in six months.
Bring us a plan or just an idea. We will arrange a discovery meeting with you to go through it.