mashu: Init phosh (though it's broken)

hosts/mashu.nix

@@ -48,5 +48,17 @@ in mkHost config {
         kernelModules = [ "kvm-intel" ];
       };
     };
+
+    services.gnome.gnome-settings-daemon.enable = true;
+    programs.phosh = {
+      enable = true;
+      phocConfig = {
+        outputs = {
+          "eDP-1" = {
+             scale = 2;
+          };
+        };
+      };
+    };
   };
 }