This is my personal preference boilerplate and starting-point for my three.js projects.

// git clone, download or otherwise obtain sourcecode and switch to project-directory
npm install
npm start

• a minimalistic demo-application
• three.js, dat-gui preconfigured for simple applications
• npm run-based build and development/autobuild-toolchain
• browserify and babel configured for ES6
• configuration to load three.js externally
• stylus is used for stylesheets (with autoprefixer)
• a development-server (budo)
• build-for-production task (uglify, html-inline)

If you like it, tell me.

Licensed under WTFPL, just take it. Please adhere to the code-of-conduct (it's a good idea in general).