I am new to shopify app development. I ran through the tutorial (https://shopify.dev/apps/getting-started/build-app-example). I read various docs about shopify POS, embedded links, point of sale links, cart extensions, App bridge, etc.) But I am still quite confused. Is there a sample/example basic app where I can start? The various instructions seem piecemeal. For example on https://shopify.dev/apps/tools/app-bridge/getting-started/app-setup it has the great line "Now that you've initialized your app, you can use any Shopify App Bridge actions." under next steps, but I have no idea how to integrate the various pieces on that page with my App.
Lets say I start with the app i built on the tutorial. How would that serve up something that can be embedded in the POS?
