sass

CSS with 

superpowers

https://sass-lang.com/

ES6

JavaScript ES6 — write less, do more

http://es6-features.org/#Constants

https://www.w3schools.com/js/js_es6.asp

https://www.freecodecamp.org/news/write-less-do-more-with-javascript-es6-5fd4a8e50ee2/

https://developer.mozilla.org/ar/docs/Web/JavaScript/Reference/Classes

TCC-GUI

GUI Builder for TCC:

https://github.com/swsoyee