Hi @Harrock:
I am curious to know if you managed to use iris_opt_flow.
Whenever I try to run the MAVSDK takeoff and land or offboard scripts, I get stuck in the pre-flight checks. More specifically the is_home_position_ok check returns a 0 and thus prevents the vehicle from arming and taking off.
Further insight into my issue: Example scripts on SITL: model iris_opt_flow does not respond well to example scripts 'offboard' and 'take off and land'