the form on this page is broken
https://analyzify.app/shopify-ga4-kit

if you are going to "give" it then give it.
Place it here on GitHub

This experience has made me "not want" to consider the paid shopify app (nor recommend it to clients)
Lets examine why:
1- The download page does not work (used 2 emails, gmail, and checked spam folder, waited 20 min)
2- even if it did work, you are still "trying" to get an email (we all know why)
3- if you want emails THAT badly, whats to stop your app from sucking them out of shopify?
4- you clearly know how GIThub works- why then is the JSON container "not" on this page?
5- maybe the company is incompetent, or worse... "shady"

QED
All really bad experiences from a UX/brand perspective

Why?
Well...
1- if the company can not set up SPF and DKIM records to properly deliver email, why should I trust this?
2- as soon as I type my email into that field I know its been harvested
3- so... do they REALLY believe in OpenSource?

QED
Likely not...

I have implemented the ga4-kit into Shopify but was seeing some strange behaviour where the analyzify_productDetail event was not firing on certain product pages.

I've realised that it was an issue with quotes " being used in our Shopify variants.

I've managed to correct the issue by updating line 21 in datalayer-product.js from

var productVariantTitle = "{{ product.selected_variant.title | default: product.variants[0].title }}";
to
var productVariantTitle = {{ product.selected_variant.title | json | default: product.variants[0].title | json }};

and the event now successfully triggers on all my product pages.

Not sure if that is the best way to fix it, but it's working