oh boy if there's one thing you can do with LaTeX/CTAN it is produce bitwise identical PDFs if you want to
https://www.opencrypto.org/2024-01-23_Schedule_of_Dr_Wrights_Further_Forgeries-COPAvWright.pdf
lmao this was what @mjg59 was talking about, that is extremely good
https://nondeterministic.computer/@mjg59/111974382004359776
you seriously have to appreciate how funny this is given how slow moving, conservative, and old fashioned the entire TeX universe is. a modern npm package with as wide usage as some CTAN packages will get like hundreds of commits a day and nightly releases. CTAN packages have like 5 versions ever and they were all in 2006
literally every useful feature in LaTeX and its derivatives was a battle against the history of the typesetting engine having been written by a single dude with an EXTREMELY specific idea about what was good for documents. i haven't read the history of this specific change, but the thing about \newgeometry not existing in 2009 is probably a HUGE DEAL because knuth almost certainly hated the idea of changing page layout mid-document and purposely sabotaged the ability to do that
@jonny (Not that he was really any more successful at that, of course)