No compilers or CMSes were harmed in the making of this website. In fact, not a single compiler was even used to build it.
No python, ruby, SASS/LESS, lint, node.js, etc.
I can use them, mind you; I just choose not to. I prefer to code using the native web dev languages instead of relying on compilers to do the heavy lifting. It's a nice feeling to be able to simply open Notepad (or any other simple text editor), make a quick fix on a file, upload it, and be done with it without a compiler middleman getting in the way.
Nor did I rely on CMSes like WordPress, Wix, SquareSpace, or the like.
They're built for non-designers, so they strip away any control I would have over the design, actions, reactions, file hierarchy, and tracking systems. If a front-end or back-end bugaboo pops up, CMSes purposely make it damn near impossible to pinpoint the bug and squash it. CMSes great for quick, dirty jobs, but they're simply not for me.
As long as I remain a freelancer, I don't see any of this changing anytime soon.