I have hear of ConTeXt, but never tried it. I originally wanted to write my resume in LaTeX, but I quickly realized that my choice was either to use a template and have a resume that looks like everyone else's, or dig deeply into the arcane working of TeX. In the end I had my sister do it in InDesign, but now she is the only one who can update it. I would love to remake it in something I can actually edit myself, whether ConTeXt, Typst or Sile.
I really think Context is the correct starting point if you want to make your own thing with the Tex quality. So many people frustrated that Latex makes it kinda hard to customize things and I was too. There is a learning curve to use the advanced features of Context but at least it feels like a sane system (and generally no need to add packages, the power to change the style of your document is fully granted to you).
