Hey HN, here is the tutorial which documents how I built this: <a href="https://medium.com/@neelrao_51658/step-by-step-how-to-write-a-basic-ethereum-smart-contract-with-a-web-interface-3ef4c7efc6a2" rel="nofollow">https://medium.com/@neelrao_51658/step-by-step-how-to-write-...</a> I hope it's helpful!