After you installed and configured web server and database. Go to: http://localhost:1337/ then start to add first settings:
Step 1: Create Super Admin Account: Email, password
Step 2: Add General information for your application: App name, support email, phone, ...
After you have done already settings information, you will navigate to the login screen and ready to work.
Note: You can also modify again the settings as below: From top bar, click on "Settings":
Web:Define some settings for website
App: Define some settings for app
General: Define kindergarten's policy