add kanata config

hosts/del/default.nix

@@ -5,6 +5,7 @@ _: {
         ./firefox.nix
         ./git.nix
         ./hardware-configuration.nix
+        ./kanata.nix
         ./profile.nix
         ./programs.nix
         ./ssh.nix

hosts/del/kanata.nix

@@ -0,0 +1,26 @@
+_: {
+    services.kanata = {
+        enable = true;
+        keyboards.kolmakdeha.config = ''
+            (defsrc
+                q   w   e   r   t   y   u   i   o   p
+                   a   s   d   f   g   h   j   k   l   ;
+                <   z   x   c   v   b   n   m
+            )
+
+            (deflayer colemakdh
+                q   w   f   p   b   j   l   u   y   ;
+                   a   r   s   t   g   m   n   e   i   o
+                z   x   c   d   v @arr  k   h
+            )
+
+            (deflayer arrows
+                _   _   _   _   _   _   _   _   _   _
+                   _   _   _   _   _   _ lft down up rght
+                _   _   _   _   _   _   _   _
+            )
+
+            (defalias arr (layer-while-held arrows))
+        '';
+    };
+}