So what was my part in this project?

Simply put - everything "tech"

I developed the iOS mobile app that enables clients to pick photos from their camera roll, crop them and complete the order. It's fully integrated with our chosen payment processor (Maksekeskus / MakeCommerce).

I wrote the back-end in Go and hosted it on the Heroku platform. There's also a custom back-office system to manage orders with a fancy Vue JS frontend.

Oh, and I also designed/coded a simple landing page for the app... So like I said - everything "tech"