New posts in Plain Tex

Unicode math at TeX primitive level

Expand control sequence previously written to file

Does \end command issue a \vfill

Can two \vtop boxes exist side by side?

Why does \def not work as TikZ parameters?

Why is the \bye command not used by LaTeX?

What are good resources for a beginner, non-computer genius type of person, to learn Plain TeX?

Trailing space in parameter delimited with \par

Partially transparent gray chronoevents in my chronosys timeline? Or using any other Plain-TeX, LaTeX, LuaLaTeX, or even a XeLaTex package or method?

Detect whether running on pdfTeX or Knuth's TeX for conditional include