How to fork and try the sample?

Hello, I would like to try this repo, the instructions say:
1. Fork and then clone the repo.
2. Run and try the sample.

I tried setup it on: apache, node, and arcgis web appbuilder (developer edition). However, none of they work for me.
In apache (httpd) an error occurs when index.html require the file app/welcome.js

<script>
  require(["c-through/welcome",  "dojo/domReady!"],function(Welcome){
    var welcome = new Welcome();
    welcome.init();    
  });
</script>

Help me please @lisastaehli.