Everyone says that. Idk what the big deal is

Aren’t there any open source period tracking apps?

Many. On F-Droid.

drip. menstrual cycle and fertility tracking (Open-source, non-commercial and leaves your data on your phone.) https://f-droid.org/packages/com.drip/

I notice nobody has commented on the fact that the driver should’ve reacted to the deer. It’s not Tesla’s responsibility to emergency brake, even if that is a feature in the system. Drivers are responsible for their vehicle’s movements at the end of the day.