I have also used this template for my builds but I have a bug on the HTML build, the game is not rendering : "The Cross-Origin Policy is not configured properly". I will figure it out but the template is very powerful, very handy.
Yes, I agree the template is awesome. If you uploaded your game to itch.io, did you enable the SharedArrayBuffer option on your game's page? I remember having a similar issue, and enabling that setting kind of solved it for me.