The Web app for sengab still under development. This is built in angularjs v1.5.3.
Simply clone this repo, then run npm install to install all the required node_modules. From there, you are ready to go!
You have to make the backend running locally. go here Sengab backend
To start the app, run http-server [path] -p8081 which will run the client at http://localhost:8081.