enable sway on pi400

systems/pi400/default.nix

@@ -32,4 +32,46 @@
   };
 
   powerManagement.cpuFreqGovernor = "ondemand";
+
+  services.gnome.gnome-keyring.enable = true;
+
+  programs.sway = {
+    enable = true;
+    wrapperFeatures.gtk = true;
+  };
+
+  security.polkit.enable = true;
+
+  services.greetd = {
+    enable = true;
+    settings = {
+      default_session = {
+        command = "${pkgs.greetd.tuigreet}/bin/tuigreet --time --cmd sway";
+        user = "greeter";
+      };
+    };
+  };
+
+  fonts = {
+    packages = with pkgs; [
+      noto-fonts
+      noto-fonts-cjk
+      noto-fonts-emoji
+      font-awesome
+      source-han-sans
+      source-han-sans-japanese
+      source-han-serif-japanese
+    ];
+    fontconfig.defaultFonts = {
+      serif = [ "Noto Serif" "Source Han Serif" ];
+      sansSerif = [ "Noto Sans" "Source Han Sans" ];
+    };
+  };
+
+  environment.systemPackages = with pkgs; [
+    grim # screenshot functionality
+    slurp # screenshot functionality
+    wl-clipboard # wl-copy and wl-paste for copy/paste from stdin / stdout
+    mako # notification system developed by swaywm maintainer
+  ];
 }