How to make subdomain for frontend (frappe ui) on frappe framework?

Hello, sorry for asking.
Can i make frontend (frappe ui) run on subdomain?
For example
for default frappe ui run on path like
host.com/mobile

but i want frappe ui run on subdomain like
mobile.host.com

Because when i try to access url host.com/xxxxx, it automaticly open my pwa, so maybe when i use subdomain it solve my problem, and when access host.com/xxxx will open browser not pwa.

Can anyone help for this? Thank you