I have seen some videos of using the mobile phone to send gps info to Kstars/Ekos using mobile apps such as Share GPS, etc. I see the drivers for connecting to GPS show up under auxiliary equipment but I am able to make it work. The youtube video of it shows a bunch of terminal commands that I am hoping are not needed if the drivers are already in the indi library. Anyone done this successfully and able to share how its done?
Yes it works, and it isn't terribly difficult to setup. I used to do it myself. However it's one extra thing to do each time you setup, so ultimately a GPS dongle or installed expansion board is more convenient. If your geography doesn't change, you could get away with just an RTC for setting time time.
INDI/KStars on Raspberry Pi 4, 4gb
Raspbian Buster with AstroPi3 script configuration
Skywatcher HEQ5 Pro Mount
Canon 600D Camera
Orion SSAG/ASI120mm @280mm Guide Scope
Adafruit Motor Hat shield
Adafruit GPS Module
Generic Bluetooth Joystick.
Startech 7 port powered USB Hub.