In an IaC environment, we don’t make changes to systems directly. Instead, we update the code and data that are used to create our environments. 
One thing I am learning as a developer working on enterprise software is the importance of a configuration management system. When you have a software system that's installed on-premises for each customer, that is configured and customized separately, managing configuration becomes a challenge. You can't just use environment variables or simple files to store config. You need to have a good strategy to deal with the configuration.  
September 22, 2020
Currently I am reading the the Practice of System and Network Administration, by Thomas Limoncelli. In this book, I came across the concept of pets vs. cattle when it comes to managing your IT infrastructure. It's one of those ideas that changes the way you look at your servers. 
September 17, 2020
In operational theory, the term bottleneck refers to the point in a system where Work-In-Progress (WIP) accumulates. 
With Windows 10 and Windows Server 2016, a new and simplified IISAdministration module was released side by side with the existing WebAdministration Cmdlets. The new module contains simple cmdlets and provide direct access to the server manager. It also offers better support for pipeline and scaling.