Loopstudios with BEM and Sass

What are you most proud of, and what would you do differently next time?

I liked my use of a sass function that converts pixels to a rem ratio:

@use "sass:math";

@function rem($pixel) {
    @if math.is-unitless($pixel) {
        @return math.div($pixel, 16) + rem;
    } @else {
        @error 'Don\'t use units when using the rem function. Only numbers.';
    }
}

@function em($pixel) {
    @if math.is-unitless($pixel) {
        @return math.div($pixel, 16) + em;
    } @else {
        @error 'Don\'t use units when using the em function. Only numbers.';
    }
}

What challenges did you encounter, and how did you overcome them?

One challenge I encountered was how to layout the file structure for all of my scss files. I looked into the 7-1 architectures and settled on a hybrid of that.

What specific areas of your project would you like help with?

I'd like any tips on how to setup and structure sass projects.