LaTeX Preamble for Heretics of Piedmont

\documentclass[11pt,twoside,openright]{memoir}

% CORE FONTS (LuaLaTeX)
\usepackage{fontspec}
\defaultfontfeatures{Ligatures=TeX}
\setmainfont{Adobe Garamond Pro}[
    Ligatures={Common, TeX},
    Numbers=OldStyle,
    SmallCapsFeatures={LetterSpace=5, Letters=SmallCaps},
]
\newfontfamily\chapterfont{Latin CG Elongated}

% LANGUAGES
\usepackage{polyglossia}
\setmainlanguage{english}

\usepackage[
    lines=3,
    loversize=0.15,
]{lettrine}
\renewcommand{\LettrineTextFont}{\scshape}

% IMAGES
\usepackage{graphicx}
\graphicspath{{images/}}
% \borderedimage[graphicx options]{filename} — double border (2pt outer, 1pt inner)
\newcommand{\borderedimage}[2][]{%
  \setlength{\fboxsep}{2pt}%
  \setlength{\fboxrule}{2pt}%
  \fbox{%
    \setlength{\fboxsep}{0pt}%
    \setlength{\fboxrule}{1pt}%
    \fbox{\includegraphics[#1]{#2}}%
  }%
}

% MICROTYPOGRAPHY
\usepackage[
  activate={true,nocompatibility},
  final,
  factor=1100,
  stretch=30,
  shrink=30,
]{microtype}

% Because of flushbottom, the engine needs permission to be messier with inter-word spacing
\pretolerance=150
\tolerance=2000
\emergencystretch=3em  % Allows an extra pass to find line breaks

\widowpenalty=9999
\clubpenalty=9996
\brokenpenalty=4991
\predisplaypenalty=10000
\postdisplaypenalty=1549
\displaywidowpenalty=1602
\cleartorecto

% DEBUG: remove before final output
% \usepackage{lua-visual-debug}

% LAYOUT
\setstocksize{9in}{6in}
\settrimmedsize{9in}{6in}{*}
\setlrmarginsandblock{0.85in}{0.55in}{*}
\setheadfoot{\baselineskip}{\baselineskip}
\setheaderspaces{*}{\baselineskip}{*}
\setulmarginsandblock{0.65in}{0.42in}{*}
\setlength{\parindent}{1.25em}
\checkandfixthelayout[lines]

% HEADERS
\makepagestyle{fiction}
\makeevenhead{fiction}{\thepage}{\small D. J. SPECKHALS}{}
\makeoddhead{fiction}{}{\small HERETICS OF PIEDMONT}{\thepage}
\makeevenfoot{fiction}{}{}{}
\makeoddfoot{fiction}{}{}{}
\aliaspagestyle{chapter}{empty}

% EPIGRAPH STYLING
\setlength{\epigraphrule}{0pt}
\renewcommand{\epigraph}[2]{%
  \vspace{\beforeepigraphskip}
  {\setlength{\parindent}{0em}%
   #1\par
   \ifx\relax#2\relax\else
     \vskip\onelineskip
     {\centering #2\par}
   \fi}
  \vspace{\afterepigraphskip}
}
\setlength{\afterepigraphskip}{3\onelineskip}

% PDF PAGE LABELS
\usepackage{hyperref}
\hypersetup{hidelinks}

% Precision tracking for pulling lines
% Usage: \pulltext[amount]{The paragraph text...}
\newcommand{\pulltext}[2][-1.0]{%
    {%
        \addfontfeature{LetterSpace=#1}%
        #2\par%
    }%
}

\setotherlanguage[variant=ecclesiastic]{latin}
\setotherlanguage{occitan}

% SEMANTIC TEXT COMMANDS (polyglossia)
\let\polyfontlatin\textlatin
\renewcommand{\textlatin}[1]{\textit{\polyfontlatin{#1}}}
\let\polyfontoccitan\textoccitan
\renewcommand{\textoccitan}[1]{\textit{\polyfontoccitan{#1}}}
% SEMANTIC TEXT COMMANDS
\newcommand{\textligurian}[1]{\textit{#1}}% lij
\newcommand{\textpiedmontese}[1]{\textit{#1}}% pms
\newcommand{\textsavoyard}[1]{\textit{#1}}% frp
\newcommand{\worktitle}[1]{\textit{#1}}% i