Thanks for sharing @CodeSharePaul - I was not aware Smidge was going so that's handy to know.

You can still use it yourself but it doesn't come with Umbraco anymore

For my SCSS I use it's native compiling, bundling and minifying and my JS is tiny. As we be using Vite anyway I assume that will be a better option: https://accreditly.io/articles/setting-up-vite-for-combining-and-minifying-scss-and-javascript