How to set up Gulp 4.0?

Question

gulp.js

Good day. I use this assembly https://habr.com/ru/post/484714/ , up to this point I used Gulp 3 versions, everything worked fine. But now I can't get this build to work without Pug. I enter the proxy parameter in the serve file, but when the SCSS changes, the page is completely reloaded.

Answer 1

https://github.com/agragregra/OptimizedHTML-5 use this