\documentclass{article}
\usepackage[fontsize=10pt]{fontsize} % will need adjusted if you change the paper size
\usepackage{parskip,tikz,lmodern,fontspec,lipsum,qrcode,hyperref}
\usepackage[%
	papersize={5.5in,4.25in},   % this is a quarter of letter paper, half was too big
   left=7.25em, right=7.25em,   % this is adjusted to right inside the QR codes, use the option "showframe" to show the bounding box
   bottom=2em
	]{geometry}

\setlength{\headsep}{3em}

\pagestyle{empty}

\def\nl{\\\vspace{1.5em}}

\def\paste{%
{\Huge Robot Lander}\\
{\small Daily}\nl
{\large Model:} ZSA Moonlander\nl
{\large Layout:} Colemak {\footnotesize with \href{https://eurkey.steffen.bruentjen.eu/}{EurKEY}}\nl
{\large Switches:} MMK Shark {\footnotesize+ O-rings cause I slam them keys}\nl
{\large Keycaps:} Drop$\times$LotR Mordor ortho set\nl
I made this card, that's pretty neat!\\
\vfill
{\tiny\href{https://daviddaily.dev/david/Keeb-Plaque}{daviddaily.dev}}
\begin{tikzpicture}[remember picture, overlay]   
   \node [below left=0.6em](TR) at (current page.north east){\qrcode{https://daviddaily.dev/david/Keeb-Plaque}};
   \node [below=.1em] at (TR.south){\footnotesize
      My website
   };
   
   \node [above right=0.6em](BL) at (current page.south west){\qrcode{https://configure.zsa.io/moonlander/layouts/3yJ7D}};
   \node [above=.1em] at (BL.north){\footnotesize
      Layout
   };
   
   \node [above left=0.6em](BR) at (current page.south east){\qrcode{https://www.theremingoat.com/blog/momoka-shark-switch-review}};
   \node [above=.1em] at (BR.north){\footnotesize
      Switches
   };
\end{tikzpicture}\newpage}

\begin{document}{\fontfamily{lmss}\selectfont\begin{center}   
\paste
\setmainfont{[Hellvetica.ttf]}
\paste
\end{center}}\end{document}