Super quick fix for NPM registry, without having to actually mirror anything. Thanks to @framp for pointing out the workaround.
git clone git@github.com:hughsk/npm-quickfix.git
cd npm-quickfix
npm set registry http://localhost:8080/
node index.js
Now you should be able to npm install
as normal :)
To change back to the original registry:
npm set registry https://registry.npmjs.org/