I'm really thankful for Yarn.

npm is the buggies software I had to deal with! Also God forbids if you want to fix a bug! First the code is absolute piece of poop and when you figure all this "smart" hacks they wrote and fix it you will have a hard time getting it merged. They close prs and force their way of doing things without caring about community feedback. Take for example that stupid error output or randomly running prepublish script for example

There are so many bad architectural decisions in npm that there is no way you can fix it by a few changes.