To get started you should probably edit and then run node specify.js.
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From your unreal project folder:
npm init
npm install TEMPLATE --save
echo node_modules >> .gitignore
The package and all its dependencies will be installed in your Plugins folder.
npm will always link, and therefore, not install, local packages. To install a local copy,
you have to use npm pack to generate a snapshot.
npm pack
cd /project/folder
npm install path/to/package/unreal-TEMPLATE-0.0.1.tgz