backend developer next js

I need a next.js [BACKEND] developer that can build the backend of a next.js app. if you're interested, kindly review the project on Trello and watch the demo video.

https://trello.com/b/IgJm1OMG
https://res.cloudinary.com/dyyjk9ktx/video/upload/v1675757784/videos/qa_rjne1x.mp4

what is your budget and timeline for the v0.1 tasks in the red labels?