Комментарии:
Absolute legend, clean explanation. Step-by-step and with no skips/edits/movie magic (you're excused for the npm start edit because I get why you wouldn't want a revert step inside a tutorial :P)
My only criticism is in the VERY important app.get('*', ...) function and possibly app.use(static usage with express.static) as someone (like myself) may have stumbled on this video without watching previous bits ... those were only mentioned rather than explained.
Overall excellent tutorial and helped me a lot!!