Intergrate a firebase backend for project.

I have a project currently deployed which is an online coding enviroment called codebook. You can have a look at the application https://www.codebook.studio/. It is an online React coding enviroment which allows people to add and run react code along with writing documentation. It currently doesnt have a backend and I want to build a backend which allows people to authenticate and save their work sheets that they generate. I am looking for a freelancer that could create a firebase backend that allows people to authenticate with a backend and also allow people to save a workbook that they generate in the frontend and access them from anywhere. My budget for this project is $50 AUD. Looking forward to working on this project with you,