Firebase
Firebase helps you build and run successful apps
Backed by Google and loved by app development
teams - from startups to global enterprises
https://github.com/iamshaunjp/firebase-auth/tree/lesson-23
易于集成到 iOS、Android 和 Web 应用中
文档
Firepad
Open source collaborative code and text editing
Real-time collaboration with no server code.
Firepad was designed to be embedded inside larger applications. Since it uses the Firebase Realtime Database as a backend it requires no server-side code and can be added to any web app simply by including the JavaScript files. Here we'll explain how to do this.
Firepad uses CodeMirror as the underlying text editor. If you'd like to use Ace as your code editor instead, skip to Getting Started with Ace.
Examples: https://firepad.io/examples/#richtext-vjpQH7ziPR
> git clone git://github.com/firebase/firepad.git
> open firepad/examples/index.html
Font Awesome
https://fontawesome.com/download