Moving my serverless project to Ruby on Rails

I have a small side project: digital gift cards for hackers. It uses Shopify for all the store-related stuff: frontend, payments, refunds, reports, etc.But unlike regular digital products (ebooks, videos) I wanted each card that the user purchases from the store to be unique. So I made a script that generates personalized images and ran it manually for every order.The next logical step was automating this process. I started with serverless AWS Lambda. At the time it was the hot new tech and I wanted to learn more. It seemed very fitting for my use-case: single-responsibility functions that can run at any time and don’t require server maintenance.