Mosquitto and Multiple Owntracks Users

Configuration
1

I would like to track both my phone and my wife’s phone with Owntracks and my private Mosquitto broker. Do I have to create two Mosquitto users or can both of us login to the single user that I have already created?

2

I created two users, one for each phone. Or rather said, I created for each device that connects to the mqtt broke a user. this way I can easily retract access in case of lost or something similar.

3

Excellent point
Thanks

4

How did you make multiple users? I’d like to do the same, I am able to log in, but can’t figure out how to add more users.
I’m using hass-io on an rpi-3.

Any help would be greatly appreciated. Thanks