Shopify Plug-in

We want to build a Shopify plug in. This plug in would be incredibly simple and “small” on the front end. The back end would be fairly complex. The plug in would add a single line to the check out page of any Shopify store that uses the plug in. The line would ask users “Do you want to donate $1 to charity?” with either a checkbox, or a toggle switch. When the user wants to donate $1 to charity and the box is checked a box would open, either as a pop-up or on the page below the checkbox. The pop up would display 3 charities. With a picture and a line describing each one. There would be a selection box under each charity and the user would then choose what charity they want the $1 to go to. As the transaction is completed we would like for $1 to be sent to our account. And the rest of the money to be sent to the store’s account. We want to receive the Name, Email, and phone number of every user that donates. As well as what charity they selected. Happy Bidding!!!