\documentclass{article} \usepackage[T1]{fontenc} \usepackage[]{cascadia-code} \usepackage{lipsum} \begin{document} \renewcommand*\familydefault{\ttdefault} \ttfamily \subsection*{Regular} \lipsum[1] \subsection*{Bold} \textbf{\lipsum[2]} \subsection*{Extra Light} {\ttfamily \fontseries{el}\selectfont\lipsum[5]} \subsection*{Light} {\ttfamily \fontseries{l}\selectfont\lipsum[5]} \subsection*{Semi Light} {\ttfamily \fontseries{sl}\selectfont\lipsum[5]} \subsection*{Semi Bold} {\ttfamily \fontseries{sb}\selectfont\lipsum[6]} \subsection*{Default Numbers} \ttfamily 1234567890 \end{document}