Arduino

Hi all, intuitively it seems to make sense to split different parts of code to different files, so it is easier to navigate and read.

For example to have separate files for servos, controllers and web which are included in the main code, and only variables are passed through.

And if this is a good practice, how do you deal with separation of setup and loop parts? I have not found reaources on this, so thinking to ask the community.