Open hassio UI without connecting to internet with the yaml files present in local system

Downloaded backend source code of home assistant from here:

Executed setup.py using the following command:
sudo python3 setup.py install

Opened Web UI of home assistant using the following command:
python3 main.py --open-ui

Want to download and install hassio souce code also in the similar manner and merge it with the complete source code of home assistant. The hassio UI should get opened without connecting to internet with the configuration and automation files configured in my local system.

Is there any way to do this?

That is not how any of this works.