It’s been a long time since I used Tasker and I clearly don’t understand it anymore (it’s like a gas plant).
So I tried Automate.
Simple editor 
and native geofencing.
Regarding the documentation, I was tricked regarding the OpenAPI URL.
There is a « : » before the Token, I thought it was necessary. But no.
I will test in real conditions and if it’s OK I will write some documentation.