This is my 'hail mary' play...

Some of you may recall that I posted about this a while back. I have a
friend who is asking for a door that allows his users to buy credits to use
in an online store. He also wants it to be able to sell the credits back to
the users, and allow the users to transfer credits to each other.

My programming skills are dated and I have no experience in JS. So, any attempt I make to do this in JS would be horribly feeble at best and likely expose my friend to sabotage at worst.

He's willing to pay for this if anyone is willing to give it a go.