Hello. I just got a google pixel with grapheneos, and would like a way to use Apple’s find-my or something similar with family members who still use Apple. I would like something open source that can either proxy my location to Find My or serve as an alternative. I know these apps and services are inherently not private but I do need it so please don’t be the guy to say “just don’t use it,” I would if it were an option. Thanks.
You cannot use Find My with non Apple devices. The feature is tightly linked to the physical device it’s activated on, all of which are stored server side at Apple. Which is why things like iCloud Activation cannot be bypassed.
The best you can do is an alternative service that won’t be anywhere near as clean and reliable.