\documentclass{memoir}
%\usepackage[useregional]{datetime2}
\usepackage{polyglossia}
\setdefaultlanguage{icelandic}
\usepackage{stix2}

%\usepackage{graphicx}
\title{Minimal Document for Testing}
\author{Joseph T. Foley \and Someone Else}
% \author:  Use \and as a separator and \thanks{details} for additional info
%\date{2020}{2}{2}
%% TODO:  use datetime2 to be smarter about dates

\begin{document}

%% Titlepage the Memoir way
\maketitle
blah blah blah
\begin{figure}
  \centering
  \caption{A caption}
\end{figure}
\end{document}

%%%%%%%%%%%%%%%%%%%% TeXStudio Magic Comments %%%%%%%%%%%%%%%%%%%%%
%% These comments that start with "!TeX" modify the way TeXStudio works
%% For details see http://texstudio.sourceforge.neit/manual/current/usermanual_en.html   Section 4.10
%%
%% What encoding is the file in?
% !TeX encoding = UTF-8
%% What language should it be spellchecked?
% !TeX spellcheck = en_US
%% What program should I compile this document with?
% !TeX program = pflatex

%%%%%%%%%%%%%%%%%%% Emacs Variables %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Local Variables:
%%% mode: latex
%%% TeX-master: t
%%% TeX-engine: luatex
%%% End: