A common step after installation is an obligatory Hello World page — a page that simply displays the text Hello World so you know things are basically setup correctly.
In the Getting Started with Wappler course I show how to create that Hello World page, and also show a basic dynamic page to verify the database and server model is setup along with the web server.
If either of these videos were helpful, you can take the entire Getting Started with Wappler course at https://learning.uniqueideas.com