Add latex packages for org export.

nix/configuration/roles/emacs/default.nix

@@ -134,6 +134,7 @@ in
                     final.prettier # Format yaml, json, and JS
                     final.terraform-ls
                     final.typescript-language-server
+                    final.tex
                   ]
                 }
               '';

nix/configuration/roles/emacs/files/emacs/elisp/lang-org.el

@@ -87,4 +87,8 @@
 (use-package gnuplot)
 (use-package graphviz-dot-mode)
 
+(use-package htmlize
+  ;; For syntax highlighting when exporting to HTML.
+  )
+
 (provide 'lang-org)

nix/configuration/roles/latex/default.nix

@@ -5,22 +5,6 @@
   ...
 }:
 
-let
-  tex = (
-    pkgs.texlive.combine {
-      inherit (pkgs.texlive)
-        scheme-basic
-        dvisvgm
-        dvipng # for preview and export as html in org-mode
-        wrapfig
-        amsmath
-        ulem
-        hyperref
-        capt-of
-        ;
-    }
-  );
-in
 {
   imports = [ ];
 
@@ -40,6 +24,35 @@ in
           tex
         ];
       }
+      {
+        nixpkgs.overlays = [
+          (final: prev: {
+            tex = (
+              pkgs.texlive.combine {
+                inherit (pkgs.texlive)
+                  scheme-basic
+                  dvisvgm
+                  dvipng # for preview and export as html in org-mode
+                  wrapfig
+                  amsmath
+                  ulem
+                  hyperref
+                  capt-of
+                  svg # emacs org-mode pdf export
+                  catchfile # emacs org-mode pdf export
+                  xcolor # emacs org-mode pdf export
+                  transparent # emacs org-mode pdf export
+                  pgf # emacs org-mode pdf export
+                  minted # emacs org-mode pdf export code block highlighting
+                  upquote # emacs org-mode pdf export
+                  lineno # emacs org-mode pdf export
+                  ;
+              }
+            );
+          })
+        ];
+
+      }
     ]
   );
 }