Implementing a ready code

Hello, I have a new offer for you. If you are interested, please feel free to provide an information about the estimated delivery time and a price. There is an open source application, which can be found at: https://github.com/sboard-team/whitebophir-old. I want to implement to this app the Desmos graphing calculator code from this fork https://github.com/rdbeach/wb/blob/master/client-data/tools/calculator/calculator.js