I know the official way to get a new payment gateway supported is using HPSDK by applying for access.
However, my scenario is a little bit complex.
I want to support Alpha pay from Canada in my Shopify store but I'm not part of Alpha pay so I can't really get the SDK.
Is there any way around? I googled for some time and it looks like some people can have a workaround by making a normal app. I'm wondering how this is done.
Any hints would be appreciated.