Ok great. Now when I run npm install --production I get the below output. Am I ok to go on to run node install now?

Only thing that looks strange to me is 

npmnotice created a lockfile as package-lock.json. You should commit this file.

Do I need to worry about that?

iMac:adapt_authoring briar$ npm install --production

> typechecker@2.0.8 preinstall /Users/briar/Applications/adapt_authoring/node_modules/extendr/node_modules/typechecker

> node ./cyclic.js

> typechecker@2.0.8 preinstall /Users/briar/Applications/adapt_authoring/node_modules/extract-opts/node_modules/typechecker

> node ./cyclic.js

> phantomjs-prebuilt@2.1.16 install /Users/briar/Applications/adapt_authoring/node_modules/phantomjs-prebuilt

> node install.js

PhantomJS not found on PATH

Downloading https://github.com/Medium/phantomjs/releases/download/v2.1.1/phantomjs-2.1.1-macosx.zip

Saving to /var/folders/xx/9kjn8gmn4c5cfnct1p7lkny00000gn/T/phantomjs/phantomjs-2.1.1-macosx.zip

Receiving...

  [=====================================---] 94%

Received 16746K total.

Extracting zip contents

Removing /Users/briar/Applications/adapt_authoring/node_modules/phantomjs-prebuilt/lib/phantom

Copying extracted folder /var/folders/xx/9kjn8gmn4c5cfnct1p7lkny00000gn/T/phantomjs/phantomjs-2.1.1-macosx.zip-extract-1536268238420/phantomjs-2.1.1-macosx -> /Users/briar/Applications/adapt_authoring/node_modules/phantomjs-prebuilt/lib/phantom

Writing location.js file

Done. Phantomjs binary available at /Users/briar/Applications/adapt_authoring/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs

npmnotice created a lockfile as package-lock.json. You should commit this file.

added 209 packages in 58.194s

iMac:adapt_authoring briar$