\documentclass[aspectratio=169]{beamer}

\usepackage{graphicx}
\usepackage[backend=biber,style=alphabetic]{biblatex}
\addbibresource{$HOME/me/bibliotheca.bib}

\usetheme{Luebeck}
\usecolortheme{beaver}

\author[A. U. Thor, Foo Bar]{A. U. Thor\\and\\Foo Bar}
\title{Fooing a bar}

\begin{document}
\begin{frame}
	\maketitle
\end{frame}

\begin{frame}
	\frametitle{This is a cool title}
	\framesubtitle{Not as cool, but still cool, this is a subtitle}
	Lisp can be used to foo a bar \cite{sicp}
\end{frame}

\begin{frame}
	\frametitle{Bibliography}
	\printbibliography
\end{frame}
\end{document}