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Hi, I'm trying to use this for unity, yet it keeps crashing

Hello, the reason why it kept crashing is because this is a Godot project. After looking through the page i realized this wasn't mentioned anywhere.  Also, I'm impressed it launched at all! 
I will not be porting it to Unity, however, i can explain how the trickiest part(locating the cursor on screen) works if you want to recreate it.