After telling him no, I became concerned that I was becoming all the lead developers I’ve worked with in the past that shut me down and, at the time, seemed to be holding back innovation on our team.
I get it now. I totally get it.
I gave up trying to be understanding and reason with them. It just seems new developers, and especially frontend developers see a shiny new package every week and want to try it. Before we put a stop to it we were lumped with a handful of projects that were frankly awful, with a bunch of spaghetti javascript code written in the flavor of the week which wouldn't compile on anything except a very specific version of a bunch of packages, whilst pulling in close to a gigabyte of random dependancies that nobody had any kind of handle on from a security point of view.
Basically you see how elegant or easy to do X in a new library but you don’t see how complicated it is to do Y. Y is complex in the new library and simple in your existing library
that doesn't sound like a big change.
Thankfully, the pages directory model is still just fine, so there’s no immense pressure for existing apps to migrate, and it can be done somewhat incrementally.