Hello :)
I downloaded this with the itch.io app on Windows 10 and got the following message:
Unable to parse Build/NewDemo20.framework.js.br! This can happen if build compression was enabled but web server hosting the content was misconfigured to not serve the file with HTTP Response Header "Content-Encoding: br" present. Check browser Console and Devtools Network tab to debug.
Apparently this is not so difficult to fix and it would be nice to be able to be able to use this in the itch app along with everything else...
Thank you for your time and effort <3