• Install ConfettiBlock App.
• Add Dependency of ConfettiBlock to your app.
• Choose screen which you want to show confetti or celebrate. 

      -> Normally it will be the final screen of specific user process like finalizing order or confirm submitting data.

• Place ConfettiBlock block to your screen anywhere you want. It's invisible block.
• Create local variable of your Screen IsConfettiStart.
• Assign Input parameter of ConfettiBlock to IsConfettiStart you just created.
• Set IsConfettiStart local variable of your screen to True to show confetti.