Deploying a site with the RT Customizer is no different than deploying a site without it. Navigate to your "Launch-New-Site" page and here, you can follow the following process:
Step 1:
Enter in the URL that you would like your brand new site to be hosted under
Step 2:
Select the blueprint you've just created
Step 3:
Fill out the data fields provided by the Real-Time Customizer
And that's everything, you've fully set up and deployed from the Real-Time Customizer