no server.js file after installing shopify CLI environment on my local windows 10 machine

[alkhan]

New to shopify dev. All the instructional videos showcase the server.js file created during install within the server directory.  I tried multiple times to install each of the components, etc., pretty sure I am not missing anything, but no luck. What might I be missing? thank you for any suggestions..... that file is used to make mods to for demo purposes.  thanks....