I like Apple’s feature to unlock a Mac-laptop automatically when the user is wearing their Apple Watch.

I bought a Bluetooth-Low-Energy capable smart watch and want to integrate it into Gnome/ Linux in general.
I want to set a minimum signal strength to lock my device when leaving the room and automatically skip typing my password when having my hands next to it.

BUT, I shouldn’t have to pair it directly with normal BT, since that would kick out my phone and kill it’s battery very fast.

Sadly, I couldn’t find any software that does that. There’s only super old stuff (>10 years abandoned) or stuff that doesn’t work and has no userbase.

I also couldn’t find any Gnome extensions.

Do you have any idea how to implement that?