You uncheck the box that says "allow network permission" when installing it. It's not available as a git download apk. If you don't have Google play services or use Google play for apps that are not available elsewhere, you can use Aurora to download it. 

 Hard to trust google! Maybe stick with typo! 🙄 

 That's the best thing, you don't have to. If you block internet access, it can't call home. This is one of the benefits of using GrapheneOS. 

 Ill try getting over my allergy  

 That we know about lol. I'm convinced Google has backdoored the pixel hardware.