Preamble for LuaLaTeX

preamble.tex

%!TEX program = lualatex
% Compile twice to settle the table of contents and cross-references.
\documentclass[11pt]{article}

\usepackage{fontspec}       % Select OpenType/TrueType system fonts
\usepackage{microtype}      % Improve spacing, protrusion, and overall typography

\usepackage[british]{babel} % Language-specific hyphenation and document strings
\usepackage{csquotes}       % Context-sensitive quotation marks

\usepackage{mathtools}      % Extensions and fixes for amsmath
\usepackage{amssymb}        % Additional mathematical symbols
\usepackage{unicode-math}   % Use OpenType Unicode math fonts
\usepackage{siunitx}        % Consistent numbers, units, and scientific notation

\usepackage{booktabs}       % Professional-quality table rules
\usepackage{tabularx}       % Tables with automatically stretching columns
\usepackage{array}          % Extended table column definitions
\usepackage{graphicx}       % Include and scale images
\usepackage{xcolor}         % Define and use colours

\usepackage[backend=biber,style=numeric]{biblatex} % Modern bibliography management
\addbibresource{references.bib}

\usepackage{hyperref}       % Clickable links, references, and PDF metadata
\usepackage{cleveref}       % Smart cross-references with object names