--- a/docs/_latex/my-doc-fonts.sty	Fri May 15 21:49:27 2026 +0200
+++ b/docs/_latex/my-doc-fonts.sty	Fri May 15 22:29:11 2026 +0200
@@ -30,6 +30,7 @@
 \newif\if@mdf@WithCharter
 \newif\if@mdf@WithLibertinus
 \newif\if@mdf@WithGaramond
+\newif\if@mdf@WithTufte
 
 % A key compatible with options processing as option "fonts" but choices.
 \define@choicekey*{my-doc-fonts.sty}{fonts}[\val\nr]{%
@@ -47,6 +48,7 @@
   charter,         % use XCharter (with XCharter Math), Lato and Inconsolata
   libertinus,      % use Libertinus family (incl. Math)
   garamond,        % EB Garamond (with Math), Libre Franklin and Inconsolata
+  tufte,      % Tufte fonts: ETbb (with Math), GilliusADFNo2, DejaVu Sans Mono
   }{%
   % Not used for now : store the normalized option value (global and expanded)
   \xdef\@mdf@fonts{\val}%
@@ -61,6 +63,7 @@
   \@mdf@WithCharterfalse
   \@mdf@WithLibertinusfalse
   \@mdf@WithGaramondfalse
+  \@mdf@WithTuftefalse
   % Now set the needed font selection flag
   \ifcase\nr\relax
     \relax
@@ -92,6 +95,8 @@
     \@mdf@WithLibertinustrue
   \or
     \@mdf@WithGaramondtrue
+  \or
+    \@mdf@WithTuftetrue
   \fi
 }
 
@@ -245,6 +250,15 @@
   \@mdf@mono@inconsolatatrue
 \fi
 
+\if@mdf@WithTufte
+  \RequirePackage{unicode-math}
+  \defaultfontfeatures{Numbers={Lining,Tabular},Ligatures=TeX}
+  \setmainfont{ETbb}
+  \setsansfont{GilliusADFNo2}[Scale=MatchLowercase]
+  \setmathfont{Libertinus Math}[Scale=MatchLowercase]
+  \@mdf@mono@dejavusansmonotrue
+\fi
+
 \defaultfontfeatures{}
 
 \if@mdf@mono@dejavusansmono