feat: add markedit and duti for default apps management

home/duti.nix

@@ -0,0 +1,33 @@
+{ config, pkgs, ... }: {
+  home.packages = [ pkgs.duti ];
+
+  xdg.configFile."duti/config".text = ''
+    # browser
+    com.google.chrome public.html
+    com.google.chrome public.url
+    com.google.chrome public.xhtml
+
+    # text editor
+    com.vscodium public.plain-text
+    com.vscodium public.text
+    com.vscodium public.source-code
+
+    # markdown viewer
+    com.godspeedapps.MarkEdit net.daringfireball.markdown
+    com.godspeedapps.MarkEdit public.markdown
+
+    # terminal
+    net.kovidgoyal.kitty public.shell-script
+
+    # pdf
+    net.sourceforge.skim-app com.adobe.pdf
+
+    # mail
+    com.apple.mail public.email-message
+  '';
+
+  # Apply default apps on activation
+  system.activationScripts.defaultApps.text = ''
+    ${pkgs.duti}/bin/duti -d ${config.xdg.configHome}/duti/config || true
+  '';
+}