In terms of practical engineering, this is also why I love to do side projects that reject existing bodies of libraries, and try to work up from first principle

In terms of practical engineering, this is also why I love to do side projects that reject existing bodies of libraries, and try to work up from first principles, and/or focus on composability rather than integration. It's a trade-off, at first it takes longer to iterate on features, but sometimes a more minimal and/or composable tool finds its way to production. Real Systems are made of duct tape anyways.