impnattypo doesn't seem to function correctly

[mun-tonsi]

I have TeXLive 2024 installed under Manjaro / Arch Linux (via the texlive meta package for pacman). I can't build using the custard class under pdfTeX, as impnattypo.sty isn't found; I have checked I have the impnattypo package installed using tlmgr, but kpsewhich impnattypo.sty returns nothing. Preliminary DuckDuckGo-fu revealed someone has had problems with impnattypo under LuaTeX, but seems unrelated: https://tex.stackexchange.com/questions/318810/problem-with-impnattypo-package.

Not sure if this is reproducible on another TeXLive install (say MiKTeX or MacTeX)?

[simonrob]

I can't replicate this I'm afraid (though I've only tried macOS, not Linux). The simplest fix is just to comment out this line in your local copy.