I see that you’ve released a Shopify App (which is great!) – we use your solution on a ton of Shopify websites, and have had to manually set it up in the theme etc.
However in its current state I can’t recommend it..
There’s a few problems:
  1. It doesn’t appear to integrate with Shopify’s Privacy API which is an absolute must for any Cookie Consent App.
  1. There’s no facility for Google Consent Mode within the App, i.e. you still have to add code to turn on Google Consent mode for this to work correctly. Ideally the App should handle this for you, but I appreciate it can be difficult to get your script outputted before Google Analytics. Google Tag Manager isn't really an option on Shopify since Shopify's own solution offers far more out of the box in terms of E-Commerce Tracking.
I’m happy to share our solution that we use to Integrate CookieScript with Shopify’s Customer Privacy API.