Fabriek

I know the answer is probably "You can't!", but you never know:

I'm planning to install GrapheneOS or LineageOS and do a full deGoogle. The only thing I'm not looking forward to is saying goodbye to this fantastic app: https://play.google.com/store/apps/details?id=com.natureguides.birdguide

Would there be any way for me to reinstall it without using Google Play?

Scientists are worried about the effect this change could have on orbiting satellites, the ozone layer, and Earth’s weather.