emacs: Try out some new unicode and variable pitch font

modules/dev-common.nix

@@ -2,7 +2,7 @@
 {
   services.avahi = {
     enable = true;
-    nssmdns = true;
+    nssmdns4 = true;
     openFirewall = true;
   };
 }

modules/emacs/doom/config.org

@@ -219,6 +219,7 @@ Customize Modus-themes a little to make it more peppy and vibrant.
          modus-themes-bold-constructs t
          modus-themes-mixed-fonts t
          modus-themes-org-blocks 'gray-background
+         modus-themes-variable-pitch-ui t
          modus-themes-prompts '(medium italic))
   :custom
   (modus-themes-common-palette-overrides
@@ -315,6 +316,8 @@ Customize Modus-themes a little to make it more peppy and vibrant.
 (use-package! doom-ui
   :config
   (setq! doom-font (font-spec :family "IBM Plex Mono" :size 19)
+         doom-serif-font (font-spec :family "IBM Plex Mono" :size 19)
+         doom-variable-pitch-font (font-spec :family "Merriweather" :size 18)
          doom-symbol-font (font-spec :family "JuliaMono")
          doom-theme 'modus-vivendi
          which-key-idle-delay 0.1))

modules/fonts.nix

@@ -12,6 +12,9 @@
       nerdfonts
       fira-code-nerdfont
       julia-mono
+      symbola
+      merriweather
+      merriweather-sans
     ];
     fontconfig = {
       enable = true;