I’ll cover item 1: start by writing a document, describing what you want to achieve: what do you mean by package, what do you mean by package manager, what features you want to have, what features you do not want to have, how you’re going to build and distribute the packages.
The reason why this is important is that a) this will be a useful reference for the implementation, b) you will learn a lot about the subject matter by trying to answer these questions, and c) you’ll learn to write such documents which is a very useful skill.
I’ll cover item 1: start by writing a document, describing what you want to achieve: what do you mean by package, what do you mean by package manager, what features you want to have, what features you do not want to have, how you’re going to build and distribute the packages.
The reason why this is important is that a) this will be a useful reference for the implementation, b) you will learn a lot about the subject matter by trying to answer these questions, and c) you’ll learn to write such documents which is a very useful skill.