feat(emacs): TeX things

modules/home/users/crumb/emacs.nix

@@ -37,6 +37,20 @@ in {
           en en-computers en-science
         ]);
 
+      my-tex = pkgs.texlive.combine {
+        inherit (pkgs.texlive)
+          scheme-basic # Set of common packages.
+          fontspec
+          dvisvgm dvipng wrapfig # For Org-mode previews/export.
+          amsmath # Essential for mathematics.
+          ulem hyperref
+          capt-of
+          pgf # Includes TikZ.
+          tikz-cd # Commutative diagrams w/ TikZ.
+          metafont
+          ;
+      };
+
       my-emacs =
         let ewp = (pkgs.emacsPackagesFor emacsBasePackage).emacsWithPackages
           (epkgs: with epkgs; [
@@ -52,6 +66,7 @@ in {
             pkgs.git # Dependency of Straight.el.
             my-aspell
             pkgs.direnv
+            pkgs.ghostscript # For TeX.
           ];
           postBuild = ''
             find "$out/bin" -name emacs -or -name "emacs-*" \
@@ -65,7 +80,7 @@ in {
                   --prefix PATH : "${pkgs.git}/bin" \
                   --prefix PATH : "${my-aspell}/bin" \
                   --prefix PATH : "${pkgs.direnv}/bin" \
-                  --prefix PATH : "${pkgs.texliveFull}/bin" \
+                  --prefix PATH : "${my-tex}/bin" \
                   --set ASPELL_CONF "dict-dir ${my-aspell}/lib/aspell"
               done
           '';