Three reference files, each stating whether a fact was measured, read from
source, or asserted — an unattributed number is a rumour.
math-on-the-web: MathML is the only no-JS route, the one pure-Go TeX→MathML
library is an untagged 2023 commit, and writing MathML directly costs nothing
since raw HTML renders.
syntax-highlighting-choices: chroma is two modules and ~5MB, every alternative a
search returns is JavaScript, and custom lexers load from XML at runtime without
a rebuild.
goldmark-behaviours: the seven surprises that caused or nearly caused defects —
strikethrough claiming a single tilde, delimiter runs pairing across whitespace,
per-parse heading id counters, footnote id prefixes, raw HTML being dropped
rather than escaped, the language class already in the output, and ParseFS
globbing.
