Add rtprio, change the waybar and simplify apps

modules/system/programs/security/default.nix

@@ -4,5 +4,6 @@
     ./apparmor
     ./doas
     ./polkit
+    ./rtprio
   ];
 }

modules/system/programs/security/rtprio/default.nix

@@ -0,0 +1,11 @@
+{ ... }:
+{
+  security.pam.loginLimits = [
+    {
+      domain = "@users";
+      item = "rtprio";
+      type = "-";
+      value = 1;
+    }
+  ];
+}

modules/system/services/general/displaymanager/default.nix

@@ -8,7 +8,22 @@
         vt = 2;
         switch = true;
       };
-      default_session.command = "${pkgs.greetd.tuigreet}/bin/tuigreet";
+      default_session.command = ''
+        ${pkgs.greetd.tuigreet}/bin/tuigreet --remember --remember-user-session --user-menu --asterisks --sessions /etc/greetd/environments
+      '';
     };
   };
+
+  environment.etc = {
+    "greetd/environments/sway.desktop".text = ''
+      [Desktop Entry]
+      Name=Sway
+      Exec=sway --unsupported-gpu
+    '';
+    "greetd/environments/niri.desktop".text = ''
+      [Desktop Entry]
+      Name=Niri
+      Exec=niri-session
+    '';
+  };
 }