JSR Is Not Another Package Manager

Over the past years, new package managers like yarn and pnpm have emerged, enhancing how packages are downloaded. However, the npm package registry, a cornerstone of the JavaScript ecosystem, has barely evolved. Its last notable update was a “files” tab added years ago. The JavaScript language, known for its vibrant evolution, seems paradoxically mired in a distribution model that hasn’t kept pace.

Source: JSR Is Not Another Package Manager

Ryan Dahl is well known for creating NodeJS, and more recently Deno an ‘open-source JavaScript runtime for the modern web’ and JSR, which explain here.