If you run npm run-script bundle after npm install, it fails because es6ify is not installed:
$ npm run-script bundle
> binauralfir@0.1.0 bundle /Users/josephg/src/binauralFIR
> browserify binaural-fir.es6.js > binaural-fir.js -s 'BinauralFIR' -d -t es6ify
Error: Cannot find module 'es6ify' from '/Users/josephg/src/binauralFIR'
es6ify should probably be added to the devDependancies in package.json.
If you run
npm run-script bundleafternpm install, it fails becausees6ifyis not installed:es6ify should probably be added to the devDependancies in package.json.