dpkg had a bit weird experience, because the "easy" way of building (binary)package is literally "just put files that need to be deployed in one directory, and

dpkg had a bit weird experience, because the "easy" way of building (binary)package is literally "just put files that need to be deployed in one directory, and some metadata in the other and run a command to package it", i.e. extremely easy and entirely independent on how you build it. But the "proper" way includes million scripts and checks that make sure your .dpkg is "distribution grade" and it can be quite complex