Discussion Build Time Optimization

Hello, I searched the forums for a particular place where asking this makes sense, but I couldn't find anything, so the scripting forum seems ideal.

I am part of a large team, and my main objective is to optimize the overall build time of our project. I realize that advice on this subject can largely depend on our build configuration/setup, but I was hoping to get tips on general things first and foremost.

For the most part, I am looking to become the expert on the Unity build pipeline. There is a bit of documentation on the subject, but I find it lacking, and there are parts of it that I wish I could study, but they are internal functions (for obvious reasons). I was hoping someone had information on where to find the best material to study from in order to be well informed on Unity's build pipeline, other than just studying the code as much as possible.