CodeXR

Sass provides variables which allow css that is used very frequently such as colors and alphas to be put into files that can be imported neatly into other scss files.

Although python adds fast development times due to the little code needed for a large impact, and Go provides a fast, typed environment, Node.js provides libraries such as Express that make it much easier to scale.

Although TypeScript adds extra features such as type security to JavaScript, it wouldn't have been as useful due to CodeXR being mostly back-end.