\documentclass{article}
\usepackage[fontsize=9pt]{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=25mm, right=25mm,   % static since the codes are a constant size. this is adjusted to right inside the QR codes, use the option "showframe" to show the bounding box
   bottom=12mm
	]{geometry}

\setlength{\headsep}{10mm}
\pagestyle{empty}
\def\nl{\\\vspace{1em}} % just to give some extraspace between the things

\def\paste{% making it a command so that we can easily make multiple pages, easily undone if you don't like it
%  this is VERY SIMPLE, and on purpose. You don't want something? comment that biznatch out. Everything else should shuffle around just fine.
   {\Huge Title}\\
   {\small Owner}
   \nl{\large Model:} model
   \nl{\large Layout:} layout
   \nl{\large Switches:} switches
   \nl{\large Keycaps:} keycaps
   \nl{\large PCB:} PCB
   \nl{\footnotesize\lipsum[1][1-6]\\This is just to show that it'll stay between the QR codes "automatically".}\\
   \vfill   % this one makes the event name all the way at the bottom
   {\LARGE \#EVENT-NAME}\\{\tiny\href{https://daviddaily.dev/david/Keeb-Plaque}{daviddaily.dev}}
% This is the QR codes in the 4 corners, pay attention to the labels. This whole section doesn't conform to the margins and stuff, so check yourself
\vspace{-2em}\begin{tikzpicture}[remember picture, overlay]
   \node [below right=0.6em](TL) at (current page.north west){\qrcode{https://daviddaily.dev}};
   \node [below=.1em] at (TL.south){\footnotesize
      Top Left%your label here
   };
   
   \node [below left=0.6em](TR) at (current page.north east){\qrcode{https://daviddaily.dev}};
   \node [below=.1em] at (TR.south){\footnotesize
      Top Right%your label here
   };
   
   \node [above right=0.6em](BL) at (current page.south west){\qrcode{https://daviddaily.dev}};
   \node [above=.1em] at (BL.north){\footnotesize
      Bottom Left%your label here
   };
   
   \node [above left=0.6em](BR) at (current page.south east){\qrcode{https://daviddaily.dev}};
   \node [above=.1em] at (BR.north){\footnotesize
      Bottom Right%your label here
   };
\end{tikzpicture}\newpage}

\begin{document}{\fontfamily{lmss}\selectfont\begin{center}
%\setmainfont{[Hellvetica.ttf]}  % uncomment if you want a better font
\paste
\paste
\end{center}}\end{document}