diff --git a/fish/.config/fish/functions/gdk.fish b/fish/.config/fish/functions/gdk.fish
new file mode 100644
index 0000000..a5a7a1b
--- /dev/null
+++ b/fish/.config/fish/functions/gdk.fish
@@ -0,0 +1,3 @@
+function gdk
+  git difftool --tool=kitty $argv
+end
diff --git a/fish/.config/fish/functions/gdt.fish b/fish/.config/fish/functions/gdt.fish
new file mode 100644
index 0000000..58970c9
--- /dev/null
+++ b/fish/.config/fish/functions/gdt.fish
@@ -0,0 +1,3 @@
+function gdt
+  git difftool $argv
+end