I use the Android app Automate, which is similar to Tasker. Based on Wi-Fi connection state and then GPS location, I can reliably detect that I’m away within just a few blocks of leaving my home, and then generally as soon as I’m back in the garage when returning. Automate just sends HTTP requests to the Home Assistant REST API to call the device_tracker.see service, which I’ve posted about previously here. I’ve got plans to share all of the details of my presence setup in a future blog post.