Can anyone provide a solution to integrating HP Wallart (https://www.hpwallart.com/) with Shopify? I may have to go the route of creating an app but I'm not 100% sure how to accomplish this. I have basic app creating knowledge using ruby on rails. Any help will be greatly appreciated.
I've had a quick look online and I can't see anything obvious. You might have to be a pioneer! I can certainly help you with app development if you need to - drop me an email :)