diff --git a/home/duti.nix b/home/duti.nix
index e69de29..5cf2576 100644
--- a/home/duti.nix
+++ b/home/duti.nix
@@ -0,0 +1,35 @@
+{ 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 defaults after linking config
+  home.activation.dutiApply = {
+    script = ''
+      ${pkgs.duti}/bin/duti -d ${config.xdg.configHome}/duti/config
+    '';
+  };
+}