I don’t have experience but what i did i tried it twice and work fine , and my to use the screen of the raspberry without need another raspberry or tablet or second screen
1- I installed raspbian ( i use pc to install screen driver)
2- i installed hassio + docker following the steps above
Now i can run hassio in raspberry and also in pc or mobile connected to the same wifi network with radpberry.
Hassio start automatically when restart raspberry but it take few minutes
The next step i will flash sonoff and try control it from the raspberry screen , i hope that success and work.
I hope that help or someone will help you