"Why use custom packages in the first place when thousands of Node packages are already out there? Isn’t this going against the spirit of open-source? ... The r

"Why use custom packages in the first place when thousands of Node packages are already out there? Isn’t this going against the spirit of open-source? ... The reason a lot of packages are Meteor-only is simply that they only make sense in the context of Meteor." Most of the browserify modules are in NPM (see https://npmjs.org/package/buffer-browserify https://npmjs.org/package/buffer-browserify for an example) so the meteor justification is far from satisfactory.