Tracer
Self-hosted live GPS
Add a device, then pair it with the tracker page to stream its GPS position here.
Give the device a friendly name and the phone number you want to label it with.
Tracer reads positions only from devices that run its tracker. The phone number is a label — nothing is queried from a carrier or the phone network.
Open the link on the device you want to follow.
and its full position history will be removed. The tracker on the phone will stop working.