Comment by benterix

The author has a point about CI being a build system and I saw it used and abused in various ways (like the CI containing only one big Makefile with the justification that we can easily migrate from one CI system to another).

However, with time, you can have a very good feel of these CI systems, their strong and weak points, and basically learn how to use them in the simplest way possible in a given situation. Many problems I saw IRL are just a result of an overly complex design.