\documentclass{article}
\usepackage[a4paper,margin=2.54cm]{geometry}

\usepackage{acrn}

\acrnDefName\copyrightVincent{Vincent Kuhlmann}{2021-2022}
\acrnDefName\copyrightTim{Tim Weijers}{2022}
\acrnDefName\copyrightHanneke{Hanneke Schroten}{2022}
\acrnDefName\copyrightThomas{Thomas van Maaren}{2022}

\begin{document}
    \copyrightHanneke
    \copyrightTim
    \copyrightHanneke
    \copyrightTim
    \copyrightThomas
    \copyrightThomas
    \copyrightThomas
    \copyrightThomas

    \acrnPrepare
    \ifbool{isCopyrightEmpty}{
        No copyright information
    }{
        \def\acrnCopyrightline#1#2#3{%
            \item Copyright (c) #2 \textbf{#1}\relax
        }
        %\adjustbox{scale=0.8,set depth={0.4\textheight}}{%
        \begin{varwidth}{25em}%
            \ttfamily
            \begin{list}{}{
                \setlength{\leftmargin}{20pt}
                \itemindent-\leftmargin
                \setlength{\itemsep}{0pt}
                \setlength{\parskip}{0pt}
            }
                \copyrightlines
            \end{list}
        \end{varwidth}%
        %}
    }
\end{document}
