CTAN sync 202210030303

9 files changed, 742 insertions, 470 deletions

diff --git a/macros/latex/contrib/yb-book/DEPENDS.txt b/macros/latex/contrib/yb-book/DEPENDS.txt
index df34424b3d..caa266e1d2 100644
--- a/macros/latex/contrib/yb-book/DEPENDS.txt
+++ b/macros/latex/contrib/yb-book/DEPENDS.txt
@@ -1,23 +1,18 @@
+hard pgf
 hard xkeyval
 hard geometry
-hard fontenc
-hard inputenc
 hard anyfontsize
-hard tikz
 hard chngcntr
 hard lastpage
 hard paralist
 hard xcolor
-hard graphicx
 hard setspace
-hard textcomp
 hard enumitem
 hard float
 hard ulem
 hard qrcode
 hard wrapfig
-hard xfp
-hard soul} % in order to use \st{
+hard soul
 hard xifthen
 hard csquotes
 hard biblatex
@@ -31,3 +26,7 @@ hard fancyhdr
 hard wrapfig
 hard mdframed
 hard changepage
+hard ifmtarg
+hard bigfoot
+hard zref
+hard needspace
\ No newline at end of file
diff --git a/macros/latex/contrib/yb-book/LICENSE.txt b/macros/latex/contrib/yb-book/LICENSE.txt
new file mode 100644
index 0000000000..bd949ffdab
--- /dev/null
+++ b/macros/latex/contrib/yb-book/LICENSE.txt
@@ -0,0 +1,21 @@
+(The MIT License)
+
+Copyright (c) 2021-2022 Yegor Bugayenko
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the 'Software'), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/macros/latex/contrib/yb-book/README.md b/macros/latex/contrib/yb-book/README.md
index a9eae33589..fcc2528d67 100644
--- a/macros/latex/contrib/yb-book/README.md
+++ b/macros/latex/contrib/yb-book/README.md
@@ -1,4 +1,5 @@
-[![make](https://github.com/yegor256/yb-book/actions/workflows/make.yml/badge.svg)](https://github.com/yegor256/yb-book/actions/workflows/make.yml)
+[![make](https://github.com/yegor256/yb-book/actions/workflows/l3build.yml/badge.svg)](https://github.com/yegor256/yb-book/actions/workflows/l3build.yml)
+[![CTAN](https://img.shields.io/ctan/v/yb-book)](https://ctan.org/pkg/yb-book)
 [![License](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/yegor256/yb-book/blob/master/LICENSE.txt)
 
 This LaTeX class I use to format [my books](https://www.yegor256.com/books.html), 
@@ -10,10 +11,14 @@ and then use in the preamble:
 
 ```tex
 \documentclass{yb-book}
+\renewcommand*\thetitle{New Book About OOP}
 \renewcommand*\theauthor{Jeff Lebowski}
 \renewcommand*\thevolume{1}
-\renewcommand*\thetitle{New Book About OOP}
+\renewcommand*\theversion{1.0}
 \begin{document}
+\ybPrintTitlePage
+\chapter{First One}
+\section{About Something Interesting}
 Hello, world!
 \end{document}
 ```
diff --git a/macros/latex/contrib/yb-book/samples/sample.tex b/macros/latex/contrib/yb-book/samples/sample.tex
deleted file mode 100644
index b5528d54ca..0000000000
--- a/macros/latex/contrib/yb-book/samples/sample.tex
+++ /dev/null
@@ -1,41 +0,0 @@
-% (The MIT License)
-%
-% Copyright (c) 2021 Yegor Bugayenko
-%
-% Permission is hereby granted, free of charge, to any person obtaining a copy
-% of this software and associated documentation files (the 'Software'), to deal
-% in the Software without restriction, including without limitation the rights
-% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-% copies of the Software, and to permit persons to whom the Software is
-% furnished to do so, subject to the following conditions:
-%
-% The above copyright notice and this permission notice shall be included in all
-% copies or substantial portions of the Software.
-%
-% THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-% SOFTWARE.
-
-\documentclass{../yb-book}
-\renewcommand*\thetitle{\LaTeX{} Class yb-book}
-\renewcommand*\theauthor{Yegor Bugayenko}
-\begin{document}
-
-\ybPrintTitlePage
-
-\newpage
-
-\chapter{Overview}
-
-\section{Purpose}
-
-\index{computer}
-This is a very interesting book about computers.
-
-\ybPrintIndex
-
-\end{document}
\ No newline at end of file
diff --git a/macros/latex/contrib/yb-book/yb-book.cls b/macros/latex/contrib/yb-book/yb-book.cls
deleted file mode 100644
index 4b99e80514..0000000000
--- a/macros/latex/contrib/yb-book/yb-book.cls
+++ /dev/null
@@ -1,341 +0,0 @@
-% (The MIT License)
-%
-% Copyright (c) 2021-2022 Yegor Bugayenko
-%
-% Permission is hereby granted, free of charge, to any person obtaining a copy
-% of this software and associated documentation files (the 'Software'), to deal
-% in the Software without restriction, including without limitation the rights
-% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-% copies of the Software, and to permit persons to whom the Software is
-% furnished to do so, subject to the following conditions:
-%
-% The above copyright notice and this permission notice shall be included in all
-% copies or substantial portions of the Software.
-%
-% THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-% SOFTWARE.
-
-\NeedsTeXFormat{LaTeX2e}
-\ProvidesClass{yb-book}[2022/01/03 0.1.0 YB Branded Book Style]
-
-\RequirePackage{xkeyval}
-
-\makeatletter
-\newif\ifyb@draft
-\DeclareOptionX{draft}{\yb@drafttrue}
-\newif\ifyb@compact
-\DeclareOptionX{compact}{\yb@compacttrue}
-\newif\ifyb@manuscript
-\DeclareOptionX{manuscript}{\yb@manuscripttrue}
-\ProcessOptionsX
-\makeatother
-
-\makeatletter\ifyb@draft
-  \PassOptionsToClass{11pt}{book}
-  \PassOptionsToClass{oneside}{book}
-\else
-  \ifyb@manuscript
-    \PassOptionsToClass{12pt}{book}
-    \PassOptionsToClass{oneside}{book}
-  \else
-    \PassOptionsToClass{11pt}{book}
-    \PassOptionsToClass{twoside}{book}
-  \fi
-\fi\makeatother
-
-\LoadClass{book}
-
-\RequirePackage{geometry}
-  \geometry{paperwidth=6in, paperheight=9in, bindingoffset=0.25in, left=0.75in, right=0.75in, top=0.75in, bottom=1.25in}
-  \makeatletter\ifyb@draft
-    \geometry{a4paper, margin=1in, left=1.5in}
-  \else
-    \ifyb@manuscript
-      \geometry{a4paper, margin=1.2in}
-    \fi
-  \fi\makeatother
-
-\RequirePackage[T1]{fontenc}
-\RequirePackage[utf8]{inputenc}
-\RequirePackage{anyfontsize}
-\RequirePackage{tikz}
-  \usetikzlibrary{positioning}
-  \usetikzlibrary{shapes}
-  \usetikzlibrary{fit}
-\RequirePackage{chngcntr}
-  \counterwithout{footnote}{chapter}
-\RequirePackage{lastpage}
-\RequirePackage{paralist}
-\RequirePackage{xcolor}
-\RequirePackage{graphicx}
-\RequirePackage{setspace}
-  \setstretch{1.2}
-  \makeatletter\ifyb@draft\setstretch{1.1}\fi\makeatother
-  \makeatletter\ifyb@compact\setstretch{1.0}\fi\makeatother
-  \makeatletter\ifyb@manuscript\setstretch{1.1}\fi\makeatother
-\RequirePackage{textcomp}
-\RequirePackage[inline]{enumitem}
-  \setlist{nosep}
-\RequirePackage{float}
-\RequirePackage[normalem]{ulem}
-\RequirePackage{qrcode}
-\RequirePackage{wrapfig}
-  \pagestyle{plain}
-\RequirePackage{xfp}
-\RequirePackage{soul} % in order to use \st{} to strikethrough
-\RequirePackage{xifthen}
-\RequirePackage[autostyle=try]{csquotes}
-
-\RequirePackage[indexing=cite,style=authoryear,natbib=true,maxnames=1,minnames=1,doi=false,url=false,isbn=false,isbn=false]{biblatex}
-  \DeclareCiteCommand{\citetitle}
-    {\boolfalse{citetracker}%
-     \boolfalse{pagetracker}%
-     \usebibmacro{prenote}}
-    {\ifciteindex
-       {\indexnames{labelname}}
-       {}%
-     \printfield[citetitle]{labeltitle}}
-    {\multicitedelim}
-    {\usebibmacro{postnote}}
-  \DeclareCiteCommand*{\citetitle}
-    {\boolfalse{citetracker}%
-     \boolfalse{pagetracker}%
-     \usebibmacro{prenote}}
-    {\ifciteindex
-       {\indexnames{labelname}}
-       {}%
-     \printfield[citetitle]{title}}
-    {\multicitedelim}
-    {\usebibmacro{postnote}}
-\RequirePackage{imakeidx}
-  \renewbibmacro*{citeindex}{\indexnames{labelname}{}}
-  \makeindex
-  \indexsetup{othercode={\hyphenpenalty=10000}}
-
-\newenvironment{condensed}{%
-  \begingroup\setstretch{1.0}%
-  % This lsstyle is defined by 'letterspace' in microtype
-  \lsstyle}{\endgroup}
-
-\makeatletter\ifyb@draft\else
-  \RequirePackage[letterspace=-50]{microtype}
-\fi\makeatother
-
-\makeatletter\ifyb@manuscript
-  \RequirePackage[tt=false,type1=true]{libertine}
-\fi\makeatother
-
-\RequirePackage[bottom,perpage,multiple]{footmisc}
-  % see https://tex.stackexchange.com/questions/40072/incompatibility-between-footmisc-option-multiple-and-hyperref/62091#62091
-  \makeatletter\let\yb@oldfootnote\footnote\makeatother
-  \makeatletter\newcommand\yb@nexttoken\relax\makeatother
-  \makeatletter\newcommand\yb@isfootnote{%
-    \ifx\footnote\yb@nexttoken\textsuperscript{,}\fi}\makeatother
-  \makeatletter\renewcommand\footnote[1]{%
-    \yb@oldfootnote{#1}\futurelet\yb@nexttoken\yb@isfootnote}\makeatother
-
-\makeatletter
-  \let\yb@oldsection\section
-  \ifyb@draft
-    \RequirePackage[medium]{titlesec}
-  \else
-    \RequirePackage[raggedright]{titlesec}
-      \titlespacing{\section}{0in}{6pt}{6pt}[1in]
-    \renewcommand\section{\newpage\yb@oldsection}
-  \fi
-\makeatother
-
-\makeatletter\ifyb@compact
-  \renewcommand\section{\vspace{2em}\yb@oldsection}
-\fi\makeatother
-
-\makeatletter\ifyb@draft
-  \RequirePackage{fancyhdr}
-    \pagestyle{fancy}
-    \renewcommand\headrulewidth{0pt}
-    \renewcommand\footrulewidth{0pt}
-    \fancyhf{}
-    \fancyhead[L,C,LO,CO]{}
-    \fancyhead[R,RO]{
-      \begin{textblock}{4}(11.5,1)
-        \begin{tikzpicture}
-          \node [color=gray, rotate=270, font=\ttfamily\scriptsize, text width=5in] at (0,0) {
-            Copyright \textcopyright{} \the\year{} by \theauthor{}.
-            All rights reserved. No part of the contents of this book may be
-            reproduced or transmitted in any form or by any means without the
-            written permission of the publisher.
-            This particular manuscript is printed for
-            \textbf{\thereviewer{}} and may be used only for one-time review. The
-            manuscript has to be destroyed after the review.
-          };
-        \end{tikzpicture}
-      \end{textblock}
-    }
-    \fancyfoot[C,CO]{\small\ttfamily page \#\thepage{} of \pageref{LastPage}}
-\fi\makeatother
-
-\renewcommand\maketitle{
-  {\LARGE\textbf{\thetitle}}
-  \\[1em]
-  by \theauthor{}
-  \\[4em]
-  \ifx\thevolume\empty\else%
-    Volume \thevolume{}\\
-  \fi
-  \ifx\thedate\empty\else%
-    Rendered on \thedate{}
-  \fi
-  \ifx\theversion\empty\else%
-    \\
-    Ver. \theversion{}
-  \fi
-}
-
-\makeatletter\newcommand\ybPrintTitlePage{
-  \ifyb@draft\else
-    \begin{titlepage}
-      \ttfamily
-      \vspace*{\fill}
-      \noindent
-      {\Huge\textbf{\thetitle}}
-      \\[1em]
-      by \theauthor{}
-      \\[4em]
-      \ifx\thevolume\empty\else%
-        Volume \thevolume{}\\
-      \fi
-      \ifx\thedate\empty\else%
-        \thedate{}
-      \fi
-      \ifx\thedate\empty\else%
-        \\
-        \theversion{}
-      \fi
-      \vspace*{\fill}
-    \end{titlepage}
-  \fi
-}\makeatother
-
-\makeatletter\newcommand\ybPrintTOC{
-  \ifyb@draft\else
-    \ifyb@compact\else\cleardoublepage\fi
-    {\setstretch{0.7}\tableofcontents}
-  \fi
-}\makeatother
-
-\makeatletter\newcommand\ybPrintIndex[1][Index]{
-  \ifyb@draft\else
-    \cleardoublepage
-    {
-      \setstretch{1.0}
-      \small
-      \addcontentsline{toc}{chapter}{#1}
-      \printindex
-    }
-  \fi
-}\makeatother
-
-\newcommand\ybPrintIcons{%
-  \ifdefempty{\theemail{}}{}{%
-    \includegraphics[height=1em]{images/icon-email.pdf}%
-    \theemail{}%
-  }%
-  \includegraphics[height=1em]{images/icon-twitter.pdf}%
-  \includegraphics[height=1em]{images/icon-linkedin.pdf}%
-  \includegraphics[height=1em]{images/icon-github.pdf}%
-  \includegraphics[height=1em]{images/icon-instagram.pdf}%
-  \includegraphics[height=1em]{images/icon-facebook.pdf}%
-  \thesocial{}%
-}
-
-% quotes
-\RequirePackage{wrapfig}
-\RequirePackage{mdframed}
-\RequirePackage{changepage}
-  \strictpagecheck
-\mdfdefinestyle{quoteodd}{backgroundcolor=black!0,
-  leftmargin=6pt,rightmargin=0pt,
-  innerleftmargin=6pt,innerrightmargin=0pt,
-  innertopmargin=0pt,innerbottommargin=0pt,
-  skipabove=0pt,skipbelow=0pt,
-  linewidth=2pt,
-  topline=false,bottomline=false,rightline=false}
-\mdfdefinestyle{quoteeven}{backgroundcolor=black!0,
-  rightmargin=6pt,leftmargin=0pt,
-  innerrightmargin=6pt,innerleftmargin=0pt,
-  innertopmargin=0pt,innerbottommargin=0pt,
-  skipabove=0pt,skipbelow=0pt,
-  linewidth=2pt,
-  topline=false,bottomline=false,leftline=false}
-\makeatletter\newcommand\ybQuote[3]{%
-  \ifthenelse{\isempty{#3}}{}{
-    \ifx\hfuzz#2\hfuzz%
-      \index{#3}%
-    \else%
-      \index{#3, #2}%
-    \fi%
-  }%
-  \def\yb@body{%
-    \raggedright%
-    \ifx\hfuzz#3\hfuzz%
-      #1%
-    \else%
-      ``#1''\\\raggedleft---#2 #3%
-    \fi%
-  }
-  \ifyb@draft%
-    \begin{wrapfigure}{r}{0.4\textwidth}%
-      \begin{mdframed}[style=quoteodd]%
-        \yb@body%
-      \end{mdframed}%
-    \end{wrapfigure}%
-  \else%
-    \begin{wrapfigure}{o}[12pt]{0.4\textwidth}%
-      \sffamily\checkoddpage%
-      \ifoddpage%
-        \begin{mdframed}[style=quoteodd]\yb@body\end{mdframed}%
-      \else%
-        \begin{mdframed}[style=quoteeven]\yb@body\end{mdframed}%
-      \fi%
-      \vspace{-12pt}
-    \end{wrapfigure}%
-  \fi%
-}\makeatother
-
-\makeatletter\newcommand\ybPrintBibliography{%
-  \AtNextBibliography{\small}%
-  \raggedright%
-  \ifyb@manuscript%
-    \setlength\bibitemsep{0pt}%
-    \newpage%
-    \begin{multicols}{2}{\setstretch{1.0}\printbibliography}\end{multicols}
-  \else
-    \printbibliography
-  \fi
-}\makeatother
-
-\AtBeginDocument{%
-  \raggedbottom%
-  \setlength\topskip{0mm}%
-  \setlength\parindent{0pt}%
-  \setlength\parskip{6pt}%
-  \interfootnotelinepenalty=10000%
-}
-
-\newcommand*\thetitle{\textbackslash{}thetitle}
-\newcommand*\thevolume{}
-\newcommand*\thedate{}
-\newcommand*\theemail{\textbackslash{}theemail}
-\newcommand*\thesocial{\textbackslash{}thesocial}
-\newcommand*\theversion{\textbackslash{}theversion}
-\newcommand*\theauthor{\textbackslash{}theauthor}
-\newcommand*\thereviewer{\textbackslash{}thereviewer}
-\newcommand*\theyear{\textbackslash{}theyear}
-\newcommand*\theprice{\textbackslash{}theprice}
-
-\endinput
diff --git a/macros/latex/contrib/yb-book/yb-book.dtx b/macros/latex/contrib/yb-book/yb-book.dtx
new file mode 100644
index 0000000000..2ca33cb55e
--- /dev/null
+++ b/macros/latex/contrib/yb-book/yb-book.dtx
@@ -0,0 +1,653 @@
+% \iffalse meta-comment
+% (The MIT License)
+%
+% Copyright (c) 2021-2022 Yegor Bugayenko
+%
+% Permission is hereby granted, free of charge, to any person obtaining a copy
+% of this software and associated documentation files (the 'Software'), to deal
+% in the Software without restriction, including without limitation the rights
+% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+% copies of the Software, and to permit persons to whom the Software is
+% furnished to do so, subject to the following conditions:
+%
+% The above copyright notice and this permission notice shall be included in all
+% copies or substantial portions of the Software.
+%
+% THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+% SOFTWARE.
+% \fi
+
+%%% \CheckSum{0}
+%
+% \CharacterTable
+%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+%   Digits        \0\1\2\3\4\5\6\7\8\9
+%   Exclamation   \!     Double quote  \"     Hash (number) \#
+%   Dollar        \$     Percent       \%     Ampersand     \&
+%   Acute accent  \'     Left paren    \(     Right paren   \)
+%   Asterisk      \*     Plus          \+     Comma         \,
+%   Minus         \-     Point         \.     Solidus       \/
+%   Colon         \:     Semicolon     \;     Less than     \<
+%   Equals        \=     Greater than  \>     Question mark \?
+%   Commercial at \@     Left bracket  \[     Backslash     \\
+%   Right bracket \]     Circumflex    \^     Underscore    \_
+%   Grave accent  \`     Left brace    \{     Vertical bar  \|
+%   Right brace   \}     Tilde         \~}
+
+% \GetFileInfo{yb-book.dtx}
+% \DoNotIndex{\end,\empty,\defined,\def,\begin,\if,\isempty,\endgroup,\begingroup,\let,\else,\fi,\newcommand,\newenvironment}
+
+% \iffalse
+%<*driver>
+\ProvidesFile{yb-book.dtx}
+%</driver>
+%<class>\NeedsTeXFormat{LaTeX2e}
+%<class>\ProvidesClass{yb-book}
+%<*class>
+[02.10.2022 0.2.0 YB Branded Book Style]
+%</class>
+%<*driver>
+\documentclass{ltxdoc}
+\usepackage[tt=false, type1=true]{libertine}
+\usepackage{href-ul}
+\usepackage{graphicx}
+\PageIndex
+\EnableCrossrefs
+\CodelineIndex
+\RecordChanges
+\begin{document}
+	\DocInput{yb-book.dtx}
+	\PrintChanges
+	\PrintIndex
+\end{document}
+%</driver>
+% \fi
+
+% \title{\includegraphics[width=0.75in]{yb-book-logo.pdf} \\ \LaTeX{} Class |yb-book|\thanks{The sources are in GitHub at \href{https://github.com/yegor256/yb-book.cls}{yegor256/yb-book.cls}}}
+% \author{Yegor Bugayenko \\ \texttt{yegor256@gmail.com}}
+% \date{\filedate, \fileversion}
+%
+% \maketitle
+%
+% \section{Introduction}
+%
+% \index{Amazon}
+% The provided class |yb-book| helps me design
+% \href{https://www.yegor256.com/books.html}{my books} and
+% publish them
+% \href{https://www.amazon.com/Yegor-Bugayenko/e/B01AM1QMDK}{on Amazon}.
+% You are welcome to use is for your own books. It is as simple
+% as this:
+%\iffalse
+%<*verb>
+%\fi
+\begin{verbatim}
+\documentclass{yb-book}
+\renewcommand*\thetitle{New Book About OOP}
+\renewcommand*\theauthor{Jeff Lebowski}
+\renewcommand*\thevolume{1}
+\renewcommand*\theversion{1.0}
+\begin{document}
+\ybPrintTitlePage
+\chapter{First One}
+\section{About Something Interesting}
+Hello, world!
+\end{document}
+\end{verbatim}
+%\iffalse
+%</verb>
+%\fi
+
+% You are welcome to suggest additional options and commands, but the style
+% of my books is intentionally as simple as possible, avoiding formatting
+% as much as possible. Here is \href{https://www.yegor256.com/2019/05/21/dont-improvise.html}{why}.
+
+% \section{Options}
+
+% There are a few class options you can use:
+
+% \begin{macro}{compact}
+% Use this package option when you need to make text more compact
+% and take less vertical space. This may be convenient fiction books.
+% I use this option to render \href{https://www.yegor256.com/code-ahead.html}{Code Ahead} book.
+% \end{macro}
+
+% \begin{macro}{manuscript}
+% When the format is not for Amazon printing,
+% but for some other purposes (the page size is A4), this option may be
+% convenient. I also use it when I want the book to be rendered for
+% printing on paper for review purposes.
+% \end{macro}
+
+% \begin{macro}{draft}
+% When it's a draft for reviewers (the page size is A4)
+% and you want to have a watermark and a compact form of the content. This
+% option goes together with |\thereviewer{}| command, which you may redefine,
+% in order to embed the name of the reviewed in the watermark. This may
+% help you prevent theft of your book:
+%\iffalse
+%<*verb>
+%\fi
+\begin{verbatim}
+\documentclass[draft]{yb-book}
+\renewcommand*\thereviewer{Walter Sobchak}
+\begin{document}
+Hello, world!
+\end{document}
+\end{verbatim}
+%\iffalse
+%</verb>
+%\fi
+% \end{macro}
+
+% \section{Meta Commands}
+
+% There are a number of commands that you may redefine in the preamble:
+%\iffalse
+%<*verb>
+%\fi
+\begin{verbatim}
+\documentclass{yb-book}
+\newcommand*\thetitle{My New Book About OOP}
+\newcommand*\theauthor{Yegor Bugayenko}
+\newcommand*\thevolume{1}
+\newcommand*\thedate{24 Feb 2022}
+\newcommand*\theversion{1.4}
+\newcommand*\thereviewer{Jeff Lebowski}
+\begin{document}
+... the content goes here ...
+\end{document}
+\end{verbatim}
+%\iffalse
+%</verb>
+%\fi
+
+% \section{Printers}
+
+% There are a number of printers --- commands that print large blocks of text
+% in the expected format:
+
+% \begin{macro}{\ybPrintTitlePage}
+% Prints the first page of a book. It expects at least |\thetitle|
+% and |theauthor| to be defined:
+%\iffalse
+%<*verb>
+%\fi
+\begin{verbatim}
+\documentclass{yb-book}
+\renewcommand*\thetitle{My New Book}
+\renewcommand*\theauthor{Yegor Bugayenko}
+\begin{document}
+\ybPrintTitlePage
+.. the rest of the book goes here
+\end{document}
+\end{verbatim}
+%\iffalse
+%</verb>
+%\fi
+% \end{macro}
+
+% \begin{macro}{\ybPrintTOC}
+% Prints the table of contents.
+% \end{macro}
+
+% \begin{macro}{\ybQuote}
+% Prints a side quote:
+%\iffalse
+%<*verb>
+%\fi
+\begin{verbatim}
+\documentclass{yb-book}
+\begin{document}
+Hello, world!
+\ybQuote{Never tell the truth to people who
+  are not worthy of it}{Mark Twain}{}
+\end{document}
+\end{verbatim}
+%\iffalse
+%</verb>
+%\fi
+% \end{macro}
+
+% \begin{macro}{\ybPrintBibliography}
+% Prints the list of bib references.
+% \end{macro}
+
+% \begin{macro}{\ybPrintIndex}
+% Prints index with an optional name of the section (instead of ``Index''):
+%\iffalse
+%<*verb>
+%\fi
+\begin{verbatim}
+\documentclass{yb-book}
+\begin{document}
+Hello, world!
+\ybPrintIndex{Recommended Books}
+\end{document}
+\end{verbatim}
+%\iffalse
+%</verb>
+%\fi
+% \end{macro}
+
+% \StopEventually{}
+
+% \section{Implementation}
+
+% \changes{v0.1.0}{2022/01/09}{Initial version}
+% \changes{v0.2.0}{2022/10/02}{Started using l3build}
+
+% First, we use |xkeyval| package for package options parsing:
+%    \begin{macrocode}
+\RequirePackage{xkeyval}
+\makeatletter
+\newif\ifyb@draft
+\DeclareOptionX{draft}{\yb@drafttrue}
+\newif\ifyb@compact
+\DeclareOptionX{compact}{\yb@compacttrue}
+\newif\ifyb@manuscript
+\DeclareOptionX{manuscript}{\yb@manuscripttrue}
+\ProcessOptionsX
+\makeatother
+%    \end{macrocode}
+
+% Then, depending on the options like |draft| and |manuscript|, we preset
+% options of the class |book| and then load it:
+%    \begin{macrocode}
+\makeatletter\ifyb@draft
+  \PassOptionsToClass{11pt}{book}
+  \PassOptionsToClass{oneside}{book}
+\else
+  \ifyb@manuscript
+    \PassOptionsToClass{12pt}{book}
+    \PassOptionsToClass{oneside}{book}
+  \else
+    \PassOptionsToClass{11pt}{book}
+    \PassOptionsToClass{twoside}{book}
+  \fi
+\fi\makeatother
+\LoadClass{book}
+%    \end{macrocode}
+
+% \begin{macro}{geometry}
+% Then, using |geometry|, we setup page layout:
+%    \begin{macrocode}
+\RequirePackage{geometry}
+\geometry{paperwidth=6in, paperheight=9in, bindingoffset=0.25in,
+  left=0.75in, right=0.75in, top=0.75in, bottom=1.25in}
+\makeatletter\ifyb@draft
+  \geometry{a4paper, margin=1in, left=1.5in}
+\else
+  \ifyb@manuscript
+    \geometry{a4paper, margin=1.2in}
+  \fi
+\fi\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% Then, we configure input encoding for UTF-8:
+%    \begin{macrocode}
+\RequirePackage[T1]{fontenc}
+\RequirePackage[utf8]{inputenc}
+\RequirePackage{lmodern}
+%    \end{macrocode}
+
+% Then, we load many important packages:
+%    \begin{macrocode}
+\RequirePackage{anyfontsize}
+\RequirePackage{tikz}
+  \usetikzlibrary{positioning}
+  \usetikzlibrary{shapes}
+  \usetikzlibrary{fit}
+\RequirePackage{chngcntr}
+  \counterwithout{footnote}{chapter}
+\RequirePackage{lastpage}
+\RequirePackage{paralist}
+\RequirePackage{xcolor}
+\RequirePackage{graphicx}
+\RequirePackage[inline]{enumitem}
+  \setlist{nosep}
+\RequirePackage{float}
+\RequirePackage[normalem]{ulem}
+\RequirePackage{xfp}
+\RequirePackage{soul}
+\RequirePackage{xifthen}
+\RequirePackage[autostyle=try]{csquotes}
+%    \end{macrocode}
+
+% \begin{macro}{\pagestyle}
+% Then, we set the layout of a page to |plain|:
+%    \begin{macrocode}
+\pagestyle{plain}
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{setspace}
+% Then, using |setspace| package we set the spacing between lines in the text,
+% depending on the package options:
+%    \begin{macrocode}
+\RequirePackage{setspace}
+  \setstretch{1.2}
+  \makeatletter\ifyb@draft\setstretch{1.1}\fi\makeatother
+  \makeatletter\ifyb@compact\setstretch{1.0}\fi\makeatother
+  \makeatletter\ifyb@manuscript\setstretch{1.1}\fi\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{biblatex}
+% Then, we configure |biblatex|, for citation management:
+%    \begin{macrocode}
+\RequirePackage[indexing=cite,style=authoryear,
+  natbib=true,maxnames=1,minnames=1,doi=false,
+  url=false,isbn=false,isbn=false]{biblatex}
+  \DeclareCiteCommand{\citetitle}
+    {\boolfalse{citetracker}%
+     \boolfalse{pagetracker}%
+     \usebibmacro{prenote}}
+    {\ifciteindex
+       {\indexnames{labelname}}
+       {}%
+     \printfield[citetitle]{labeltitle}}
+    {\multicitedelim}
+    {\usebibmacro{postnote}}
+  \DeclareCiteCommand*{\citetitle}
+    {\boolfalse{citetracker}%
+     \boolfalse{pagetracker}%
+     \usebibmacro{prenote}}
+    {\ifciteindex
+       {\indexnames{labelname}}
+       {}%
+     \printfield[citetitle]{title}}
+    {\multicitedelim}
+    {\usebibmacro{postnote}}
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{condensed}
+% Then, we define |condensed| environment for snippets
+% (|lsstyle| is defined by |letterspace| in |microtype|):
+%    \begin{macrocode}
+\newenvironment{condensed}
+  {\begingroup\setstretch{1.0}\lsstyle}
+  {\endgroup}
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{microtype}
+% Then, we include |microtype| for better rendering:
+%    \begin{macrocode}
+\makeatletter\ifyb@draft\else
+  \RequirePackage[letterspace=-50]{microtype}
+\fi\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{libertine}
+% Then, we include |libertine|, for a good looking font:
+%    \begin{macrocode}
+\makeatletter\ifyb@manuscript
+  \RequirePackage[tt=false,type1=true]{libertine}
+\fi\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{\section}
+% Then, we redefine |\section| command:
+%    \begin{macrocode}
+\makeatletter
+\let\yb@oldsection\section
+\ifyb@draft
+  \RequirePackage[medium]{titlesec}
+\else
+  \RequirePackage[raggedright]{titlesec}
+    \titlespacing{\section}{0in}{6pt}{6pt}[1in]
+  \renewcommand\section{\newpage\yb@oldsection}
+\fi
+\ifyb@compact
+  \renewcommand\section{\vspace{2em}\yb@oldsection}
+\fi
+\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% Then, if it's a |draft|, we put a watermark comment:
+%    \begin{macrocode}
+\makeatletter\ifyb@draft
+\RequirePackage{fancyhdr}
+\pagestyle{fancy}
+\renewcommand\headrulewidth{0pt}
+\renewcommand\footrulewidth{0pt}
+\fancyhf{}
+\fancyhead[L,C,LO,CO]{}
+\fancyhead[R,RO]{
+  \begin{textblock}{4}(11.5,1)\begin{tikzpicture}
+    \node [color=gray, rotate=270,
+      font=\ttfamily\scriptsize, text width=5in] at (0,0) {
+      Copyright \textcopyright{} \the\year{} by \theauthor{}.
+      All rights reserved. No part of the contents of
+      this book may be reproduced or transmitted in any
+      form or by any means without the written permission
+      of the publisher. This particular manuscript is
+      printed for \textbf{\thereviewer}} and may be used only
+      for one-time review. The manuscript has to be destroyed
+      after the review.
+    };
+  \end{tikzpicture}\end{textblock}
+}
+\fancyfoot[C,CO]{\small\ttfamily
+  page \#\thepage{} of \pageref{LastPage}}
+\fi\makeatother
+%    \end{macrocode}
+
+% \begin{macro}{\maketitle}
+% Then, we redefine |\maketitle| command:
+%    \begin{macrocode}
+\renewcommand\maketitle{
+  {\LARGE\textbf{\thetitle}}
+  \\[1em]
+  by \theauthor{}
+  \\[4em]
+  \ifx\thevolume\empty\else%
+    Volume \thevolume{}\\
+  \fi
+  \ifx\thedate\empty\else%
+    Rendered on \thedate{}
+  \fi
+  \ifx\theversion\empty\else%
+    \\
+    Ver. \theversion{}
+  \fi
+}
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{\ybPrintTitlePage}
+% Then, we define |\ybPrintTitlePage| command:
+%    \begin{macrocode}
+\makeatletter\newcommand\ybPrintTitlePage{
+  \ifyb@draft\else
+    \begin{titlepage}
+      \ttfamily
+      \vspace*{\fill}
+      \noindent
+      {\Huge\textbf{\thetitle}}
+      \\[1em]
+      by \theauthor{}
+      \\[4em]
+      \ifx\thevolume\empty\else%
+        Volume \thevolume{}\\
+      \fi
+      \ifx\thedate\empty\else%
+        \thedate{}
+      \fi
+      \ifx\thedate\empty\else%
+        \\
+        \theversion{}
+      \fi
+      \vspace*{\fill}
+    \end{titlepage}
+  \fi
+}\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{\ybPrintTOC}
+% Then, we define |ybPrintTOC| command to print table of contents:
+%    \begin{macrocode}
+\makeatletter\newcommand\ybPrintTOC{
+  \ifyb@draft\else
+    \ifyb@compact\else\cleardoublepage\fi
+    {\setstretch{0.7}\tableofcontents}
+  \fi
+}\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{\ybPrintIndex}
+% Then, we configure |imakeidx| package and define |\ybPrintIndex| command:
+%    \begin{macrocode}
+\RequirePackage{imakeidx}
+  \renewbibmacro*{citeindex}{\indexnames{labelname}{}}
+  \makeindex
+  \indexsetup{othercode={\hyphenpenalty=10000}}
+\makeatletter\newcommand\ybPrintIndex[1][Index]{
+  \ifyb@draft\else
+    \cleardoublepage
+    {
+      \setstretch{1.0}
+      \small
+      \addcontentsline{toc}{chapter}{#1}
+      \printindex
+    }
+  \fi
+}\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% \begin{macro}{\ybQuote}
+% Then, with the help of |wrapfig| and |mdframed|, we define |\ybQuote| command:
+%    \begin{macrocode}
+\RequirePackage{wrapfig}
+\RequirePackage{mdframed}
+\RequirePackage{changepage}
+  \strictpagecheck
+\mdfdefinestyle{quoteodd}{backgroundcolor=black!0,
+  leftmargin=6pt,rightmargin=0pt,
+  innerleftmargin=6pt,innerrightmargin=0pt,
+  innertopmargin=0pt,innerbottommargin=0pt,
+  skipabove=0pt,skipbelow=0pt,
+  linewidth=2pt,
+  topline=false,bottomline=false,rightline=false}
+\mdfdefinestyle{quoteeven}{backgroundcolor=black!0,
+  rightmargin=6pt,leftmargin=0pt,
+  innerrightmargin=6pt,innerleftmargin=0pt,
+  innertopmargin=0pt,innerbottommargin=0pt,
+  skipabove=0pt,skipbelow=0pt,
+  linewidth=2pt,
+  topline=false,bottomline=false,leftline=false}
+\makeatletter\newcommand\ybQuote[3]{%
+  \ifthenelse{\isempty{#3}}{}{
+    \ifx\hfuzz#2\hfuzz%
+      \index{#3}%
+    \else%
+      \index{#3, #2}%
+    \fi%
+  }%
+  \def\yb@body{%
+    \raggedright%
+    \ifx\hfuzz#3\hfuzz%
+      #1%
+    \else%
+      ``#1''\\\raggedleft---#2 #3%
+    \fi%
+  }
+  \ifyb@draft%
+    \begin{wrapfigure}{r}{0.4\textwidth}%
+      \begin{mdframed}[style=quoteodd]%
+        \yb@body%
+      \end{mdframed}%
+    \end{wrapfigure}%
+  \else%
+    \begin{wrapfigure}{o}[12pt]{0.4\textwidth}%
+      \sffamily\checkoddpage%
+      \ifoddpage%
+        \begin{mdframed}[style=quoteodd]\yb@body\end{mdframed}%
+      \else%
+        \begin{mdframed}[style=quoteeven]\yb@body\end{mdframed}%
+      \fi%
+      \vspace{-12pt}
+    \end{wrapfigure}%
+  \fi%
+}\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% Then, we use and configure |footmisc| as suggested
+% \href{https://tex.stackexchange.com/questions/40072/incompatibility-between-footmisc-option-multiple-and-hyperref/62091#62091}{here}:
+%    \begin{macrocode}
+\RequirePackage{perpage}
+\RequirePackage[bottom,perpage,multiple]{footmisc}
+\makeatletter
+  \let\yb@oldfootnote\footnote
+\newcommand\yb@nexttoken\relax
+\newcommand\yb@isfootnote{%
+  \ifx\footnote\yb@nexttoken\textsuperscript{,}\fi}
+\renewcommand\footnote[1]{%
+  \yb@oldfootnote{#1}\futurelet\yb@nexttoken\yb@isfootnote}
+\makeatother
+%    \end{macrocode}
+
+% \begin{macro}{\ybPrintBibliography}
+% Then, we define |\ybPrintBibliography|, to print a list of references:
+%    \begin{macrocode}
+\makeatletter\newcommand\ybPrintBibliography{%
+  \AtNextBibliography{\small}%
+  \raggedright%
+  \ifyb@manuscript%
+    \setlength\bibitemsep{0pt}%
+    \newpage%
+    \begin{multicols}{2}
+      {\setstretch{1.0}\printbibliography}
+    \end{multicols}
+  \else
+    \printbibliography
+  \fi
+}\makeatother
+%    \end{macrocode}
+% \end{macro}
+
+% Then, a few layout configurations at the beginning of the document:
+%    \begin{macrocode}
+\AtBeginDocument{%
+  \raggedbottom%
+  \setlength\topskip{0mm}%
+  \setlength\parindent{0pt}%
+  \setlength\fboxsep{0pt}%
+  \setlength\parskip{6pt}%
+  \interfootnotelinepenalty=10000%
+}
+%    \end{macrocode}
+
+% Finally, a few meta commands with default values:
+%    \begin{macrocode}
+\newcommand*\thetitle{\textbackslash{}thetitle}
+\newcommand*\thevolume{}
+\newcommand*\thedate{}
+\newcommand*\theversion{\textbackslash{}theversion}
+\newcommand*\theauthor{\textbackslash{}theauthor}
+\newcommand*\thereviewer{\textbackslash{}thereviewer}
+%    \end{macrocode}
+
+% \Finale
+
+%\clearpage
+%
+%\PrintChanges
+%\clearpage
+%\PrintIndex
diff --git a/macros/latex/contrib/yb-book/yb-book.ins b/macros/latex/contrib/yb-book/yb-book.ins
new file mode 100644
index 0000000000..a84a03f901
--- /dev/null
+++ b/macros/latex/contrib/yb-book/yb-book.ins
@@ -0,0 +1,55 @@
+%% (The MIT License)
+%%
+%% Copyright (c) 2021-2022 Yegor Bugayenko
+%%
+%% Permission is hereby granted, free of charge, to any person obtaining a copy
+%% of this software and associated documentation files (the 'Software'), to deal
+%% in the Software without restriction, including without limitation the rights
+%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+%% copies of the Software, and to permit persons to whom the Software is
+%% furnished to do so, subject to the following conditions:
+%%
+%% The above copyright notice and this permission notice shall be included in all
+%% copies or substantial portions of the Software.
+%%
+%% THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+%% SOFTWARE.
+
+\input docstrip.tex
+\keepsilent
+\usedir{macros/latex/contrib/yb-book}
+\preamble
+(The MIT License)
+
+Copyright (c) 2021-2022 Yegor Bugayenko
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the 'Software'), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+\endpreamble
+\generate{\file{yb-book.cls}{\from{yb-book.dtx}{class}}}
+\obeyspaces
+\Msg{*** To finish the installation you have to move the ".cls"}
+\Msg{*** file into a directory searched by TeX. To produce the}
+\Msg{*** documentation run the file ".dtx" through LaTeX. If any}
+\Msg{*** questions, submit a new GitHub issue.}
+\endbatchfile
diff --git a/macros/latex/contrib/yb-book/yb-book.pdf b/macros/latex/contrib/yb-book/yb-book.pdf
index cde5f931f5..fa56f44647 100644
--- a/macros/latex/contrib/yb-book/yb-book.pdf
+++ b/macros/latex/contrib/yb-book/yb-book.pdf
diff --git a/macros/latex/contrib/yb-book/yb-book.tex b/macros/latex/contrib/yb-book/yb-book.tex
deleted file mode 100644
index 0937552058..0000000000
--- a/macros/latex/contrib/yb-book/yb-book.tex
+++ /dev/null
@@ -1,79 +0,0 @@
-% (The MIT License)
-%
-% Copyright (c) 2021-2022 Yegor Bugayenko
-%
-% Permission is hereby granted, free of charge, to any person obtaining a copy
-% of this software and associated documentation files (the 'Software'), to deal
-% in the Software without restriction, including without limitation the rights
-% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-% copies of the Software, and to permit persons to whom the Software is
-% furnished to do so, subject to the following conditions:
-%
-% The above copyright notice and this permission notice shall be included in all
-% copies or substantial portions of the Software.
-%
-% THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-% SOFTWARE.
-
-\documentclass[compact,manuscript]{./yb-book}
-\usepackage{ffcode}
-\usepackage{href-ul}
-\renewcommand*\theversion{0.1.0}
-\renewcommand*\thedate{2022/01/03}
-\renewcommand*\thetitle{\LaTeX{} Class \ff{yb-book}}
-\renewcommand*\theauthor{Yegor Bugayenko}
-
-\begin{document}
-
-\includegraphics[height=6em]{yb-book-logo.pdf}
-\vspace*{24pt}
-
-\maketitle
-
-\index{Amazon}
-The provided class \ff{yb-book} helps me design
-\href{https://www.yegor256.com/books.html}{my books} and
-publish them
-\href{https://www.amazon.com/Yegor-Bugayenko/e/B01AM1QMDK}{on Amazon}.
-
-There are a few class options you can use:
-
-\ff{compact} --- when you need to make text more compact
-and take less vertical space;
-
-\ff{manuscript} --- when the format is not for Amazon printing,
-but for some other purposes (the page size is A4), like the document
-you are reading right now;
-
-\ff{draft} --- when it's a draft for reviewers (the page size is A4)
-and you want to have a watermark and a compact form of the content;
-
-\section*{Printers}
-
-There are a number of printers, commands that print large blocks of text
-in the expected format:
-
-\ff{\textbackslash{}ybPrintTitlePage} --- prints the first page of a book.
-
-\ff{\textbackslash{}ybPrintTOC} --- prints the table of contents.
-
-\ff{\textbackslash{}ybQuote} --- prints a side quote.
-
-\ff{\textbackslash{}ybPrintBibliography} --- prints the list of bib references.
-
-\ff{\textbackslash{}ybPrintIcons} --- prints your social icons.
-
-\ff{\textbackslash{}ybPrintIndex[1]} --- prints index with an optional name of the section (instead of ``Index'').
-
-For more samples, check the directory \ff{samples/}.
-
-You are welcome to suggest additional commands, but the style
-of my books is intentionally as simple as possible, avoiding formatting
-as much as possible.
-
-\end{document}
\ No newline at end of file