--- a/docs/_latex/my-doc-fonts.sty	Fri May 15 14:34:43 2026 +0200
+++ b/docs/_latex/my-doc-fonts.sty	Fri May 15 16:35:34 2026 +0200
@@ -14,37 +14,68 @@
     \RequirePackage{color}
 }
 
-\newif\if@mdf@@sscode\@mdf@@sscodefalse
-\newif\if@mdf@@inconsolata\@mdf@@inconsolatafalse
+\newif\if@mdf@mono@dejavusansmono\@mdf@mono@dejavusansmonofalse
+\newif\if@mdf@mono@sscode\@mdf@mono@sscodefalse
+\newif\if@mdf@mono@inconsolata\@mdf@mono@inconsolatafalse
 
 \newif\if@mdf@WithDejaVuSansMono
-\newif\if@mdf@WithPlexMono
-\newif\if@mdf@WithAdobeSource
+\newif\if@mdf@WithIBMPlex
+\newif\if@mdf@WithIBMPlexDejaVuSansMono
+\newif\if@mdf@WithAdobeSourcePro
 \newif\if@mdf@WithSpectral
 \newif\if@mdf@WithCharter
 
-\def\@mdf@reset@font@options{\@mdf@WithDejaVuSansMonofalse\@mdf@WithPlexMonofalse\@mdf@WithAdobeSourcefalse\@mdf@WithCharterfalse}
-
-\DeclareOptionX{dejavusansmono}[true]{\@mdf@reset@font@options\csname @mdf@WithDejaVuSansMono#1\endcsname}
-\DeclareOptionX{plexmono}[true]{\@mdf@reset@font@options\csname @mdf@WithPlexMono#1\endcsname}
-\DeclareOptionX{adobesource}[true]{\@mdf@reset@font@options\csname @mdf@WithAdobeSource#1\endcsname}
-\DeclareOptionX{spectral}[true]{\@mdf@reset@font@options\csname @mdf@WithSpectral#1\endcsname}
-\DeclareOptionX{charter}[true]{\@mdf@reset@font@options\csname @mdf@WithCharter#1\endcsname}
+% A key compatible with options processing as option "fonts" but choices.
+\define@choicekey*{my-doc-fonts.sty}{fonts}[\val\nr]{%
+  dejavusansmono,
+  plex, ibmplex,
+  plex-dejavusansmono,
+  adobesource, adobesourcepro,
+  spectral,
+  charter}{%
+  \@mdf@WithDejaVuSansMonofalse
+  \@mdf@WithIBMPlexfalse
+  \@mdf@WithIBMPlexDejaVuSansMonofalse
+  \@mdf@WithAdobeSourceProfalse
+  \@mdf@WithSpectralfalse
+  \@mdf@WithCharterfalse
+  \ifcase\nr\relax
+    \@mdf@WithDejaVuSansMonotrue
+  \or
+    \@mdf@WithIBMPlextrue
+  \or
+    \@mdf@WithIBMPlextrue
+  \or
+    \@mdf@WithIBMPlexDejaVuSansMonotrue
+  \or
+    \@mdf@WithAdobeSourceProtrue
+  \or
+    \@mdf@WithAdobeSourceProtrue
+  \or
+   \@mdf@WithSpectraltrue
+  \or
+    \@mdf@WithChartertrue
+  \fi
+  % Not used for now : store the normalized option value (global and expanded)
+  \xdef\@mdf@fonts{\val}
+}
 
 %
 % By default use the safe option dejavusansmono because is contains
 % all characters without any hacks.
 %
-\ExecuteOptionsX{dejavusansmono}
+\ExecuteOptionsX{fonts=dejavusansmono}
 \ProcessOptionsX\relax
 
 \if@mdf@WithDejaVuSansMono
-  \RequirePackage[DefaultFeatures={Scale=0.92},mono=false]{plex-otf}
-  \RequirePackage[mono=true,serif=false,sans=false,math=false]{dejavu-otf}  % all symbols are available
+  % default but with DejaVu Sans Mono as monospaced font
+  %\RequirePackage[DefaultFeatures={Scale=0.92},mono=false]{plex-otf}
+  %\RequirePackage[mono=true,serif=false,sans=false,math=false]{dejavu-otf}  % all symbols are available
+  \@mdf@mono@dejavusansmonotrue
 \fi
 %
 %
-\if@mdf@WithPlexMono
+\if@mdf@WithIBMPlex
   \RequirePackage{newunicodechar}
   \RequirePackage[DefaultFeatures={Scale=0.92}]{plex-otf}
   % Dont keep all default font features from plex-otf
@@ -79,7 +110,11 @@
     verbatimcontinued={\textcolor{red}{{\DejaVuSansMono^^^^21aa}}}}%
     {sphinx}
 \fi
-\if@mdf@WithAdobeSource
+\if@mdf@WithIBMPlexDejaVuSansMono
+  \RequirePackage[DefaultFeatures={Scale=0.92},mono=false]{plex-otf}
+  \@mdf@mono@dejavusansmonotrue
+\fi
+\if@mdf@WithAdobeSourcePro
   \defaultfontfeatures{Ligatures=TeX,Numbers={Lining,Tabular}}
   \setmainfont{Source Serif Pro}[
     UprightFont = *,
@@ -93,7 +128,7 @@
     ItalicFont = * Italic,
     BoldItalicFont = * Bold Italic,
   ]
-  \@mdf@@sscodetrue
+  \@mdf@mono@sscodetrue
 \fi
 \if@mdf@WithSpectral
   \defaultfontfeatures{Ligatures=TeX,Numbers={Lining,Tabular}}
@@ -109,7 +144,7 @@
     ItalicFont = * Italic,
     BoldItalicFont = * Bold Italic,
   ]
-  \@mdf@@sscodetrue
+  \@mdf@mono@sscodetrue
 \fi
 \if@mdf@WithCharter
   \defaultfontfeatures{Ligatures=TeX,Numbers={Lining,Tabular}}
@@ -121,12 +156,17 @@
     BoldItalicFont = * Bold Italic,
     Scale = MatchLowercase,
   ]
-  \@mdf@@inconsolatatrue
+  \@mdf@mono@inconsolatatrue
 \fi
 
 \defaultfontfeatures{}
 
-\if@mdf@@sscode
+\if@mdf@mono@dejavusansmono
+  % automatically applied with Scale=MatchLowercase,...
+  \RequirePackage[mono=true,serif=false,sans=false,math=false]{dejavu-otf}  % all symbols are available
+\fi
+
+\if@mdf@mono@sscode
   \RequirePackage{newunicodechar}
   \defaultfontfeatures{Ligatures=TeX,Numbers={Lining,Tabular},Scale=MatchLowercase}
   \setmonofont{Source Code Pro}[
@@ -157,7 +197,7 @@
     {sphinx}
 \fi
 
-\if@mdf@@inconsolata
+\if@mdf@mono@inconsolata
   \RequirePackage{newunicodechar}
   \defaultfontfeatures{Ligatures=TeX,Numbers={Lining,Tabular},Scale=MatchLowercase}
   \setmonofont{Inconsolata LGC Nerd Font Mono}[%
@@ -184,4 +224,10 @@
 
 \defaultfontfeatures{}
 
+\def\testmdf{
+  Normalized: \@mdf@fonts\newline
+  % To be used like
+  Normalized: \ifx\@mdf@fonts{adobesourcepro} HUHU\else HAHA\fi\newline
+}
+
 \endinput

--- a/docs/conf.py	Fri May 15 14:34:43 2026 +0200
+++ b/docs/conf.py	Fri May 15 16:35:34 2026 +0200
@@ -146,10 +146,7 @@
 latex_elements = {
     "papersize": "a4paper",
     "babel": r"\usepackage{babel}",
-    "fontpkg": r"\usepackage[adobesource]{my-doc-fonts}",
-#   "fontpkg": r"\usepackage[plexmono]{my-doc-fonts}",
-#   "fontpkg": r"\usepackage[spectral]{my-doc-fonts}",
-#   "fontpkg": r"\usepackage[charter]{my-doc-fonts}",
+    "fontpkg": r"\usepackage[fonts=Adobesourcepro]{my-doc-fonts}",    
     "releasename": "Version",
     "fncychap": r"\usepackage[Sonny]{fncychap}",
     "preamble": r"\usepackage[stdtitle=false]{my-doc-style}",