Implementing Flexbox with SCSS mixins

I was scouring the internet for a good mixin for flexbox but I would always come across mixins like these,

@mixin flexbox() { display: -webkit-box; display: -moz-box; display: -ms-flexbox; display: -webkit-flex; display: flex; } 

with a mixin for every possible property,

@mixin justify-content($justify) { -webkit-justify-content: $justify; -moz-justify-content: $justify; -ms-justify-content: $justify; justify-content: $justify; -ms-flex-pack: $justify; } 

While this may work for a lot of people, I still felt that it could be made simpler, or "DRY'er". I'm pretty sure someone must have done something like this before, but I couldn't find it. So after a little bit of struggling around with SCSS mixins and functions, I came up with this,

More functions can be created and extended into the mixin such as flex-direction, flex-wrap, flex-grow, etc. with the @content directive in a similar way. It can also be used on properties that use the same values like justify-self or align-self. I will be updating this post with a github repo for all the functions and mixins soon.

Would love to know if anyone finds it useful. Thanks.