L'extension `newcomputermodern` utilise [fspolddefault.tex](https://mirrors.ctan.org/macros/unicodetex/latex/fontsetup/tex/fspolddefault.tex) :
% !TeX TS-program = lualatex
\documentclass{article}
\usepackage{kpfonts-otf}
\setmonofont[%
ItalicFont=NewCMMono10-Italic.otf,%
BoldFont=NewCMMono10-Bold.otf,%
BoldItalicFont=NewCMMono10-BoldOblique.otf,%
SlantedFont=NewCMMono10-Regular.otf,%
SlantedFeatures={FakeSlant=0.25},
BoldSlantedFont=NewCMMono10-Bold.otf,%
BoldSlantedFeatures={FakeSlant=0.25},
SmallCapsFeatures={Numbers=OldStyle}]{NewCMMono10-Regular.otf}
\begin{document}
En slanted: \textsl{test \textsc{testsc \texttt{testsctt}}}
\end{document}\end{document}
![alt text][1]
[1]: https://texnique.fr/osqa/upfiles/Screenshot_2024-01-21_at_13.20.12.png
