Following the Tutorial Video Nr.1 https://www.youtube.com/watch?v=6BozpmSjk-Y , similar to @dcode-youtube's repo https://github.com/dcode-youtube/single-page-app-vanilla-js Execute installations as described in the tutorial video to get the needed Node Packages, e.g. for running the server.
Following the Tutorial Video Nr.2 https://www.youtube.com/watch?v=OstALBk-jTc .