You can insert a physical nano-SIM card into Nommi and use it as a regular hotspot. 

Please remember to switch to physical SIM mode in the Settings after inserting the SIM. Please restart Nommi after inserting physical SIM.

Steps for changing SIM mode in Nommi app: 

Open Nommi app > go to main page "Nommi" > click on Connect to Nommi >Profile page > My device > SIM mode.