I was able to flash them from install.konnected.io but if I make a change in the app like rename the device and flash it via the app it will no longer connect via ESPHome in HA.
I can go to the IP of each device, see the setting and even send the commands from it.
Currently I have them running with just the default flash but now I am concerned that I will not be able to flash them with future updates without connecting a USB cable.