Out of my own needs I developed a node.js boilerplate that I can hopefully use in further projects. You can use it too as it is open source and on GitHub.
The Idea was to have a good starting point for a backend for my web apps. So this needs to contain authentication, session handling, storage access and a RESTful API structure for frontends.
Also I like to keep it clean so the project structure is based on community best practices. To help others use this project - and myself to remember what I did - I extensively inline documented what is going on where.
To get more details, please refer to the README file of the project on GitHub.