Shopify App Development
I did develop 2 public 1 custom Shopify apps from scratch. I touched many aspects of Shopify API like
- Carrier Service
- Fullfilment Service
- Checkout API
- Payment Provider
- Graphql Admin
- Rest Admin
- Syncing stores
- Using webhooks
- Embedded UI
- Metafields
- Shopify flow actions
When it comes to app development I ain't your react developer only guy. You can consult me why your app is not working as well. So.
tl;dr
You app is in good hands.