JSR: WHAT WE KNOW SO FAR ABOUT DENO’S NEW JAVASCRIPT PACKAGE REGISTRY

Summary from the TLDR newsletter

JSR is a new package registry from the team behind Deno. It has several significant technical divergences from npm. JSR is specifically built for Deno and its content is controlled to prevent squatters and abandoned modules from taking up namespace. Access to JSR is still restricted to a waiting list.