How to write custom pixel code in my shopify app so when install app add code to custompixel.

[jayeshcspl1]

I have created app using remix template. 

I want that when shopify admin install pirsch-demo1 app. Following Customer events >> custom pixel should automatically created to track purchase and want to show that data in pirsch analytics. 

This custom pixel code runs only when order is successfully placed. Currently I created pirsch Custom pixel manually. I want to create it through my shopify app. How can I do that. Please guide me.