feat: add lock screen capability

also switch to swaybg from swww because of instability

users/youwen/linux/hyprland/common.nix

@@ -65,7 +65,9 @@
 
         ''$mod, P, exec, grim -g "$(slurp)" - | swappy -f -'' # Screenshot
 
-        "$mod, Backspace, exec, wlogout" # Screenshot
+        "$mod, Backspace, exec, wlogout" # show logout menu
+
+        "$mod, L, exec, hyprlock"
       ];
       bindm = [
         "$mod, mouse:272, movewindow"
@@ -207,4 +209,67 @@
       };
     };
   };
+
+  programs.hyprlock = {
+    enable = true;
+    settings = {
+      general = {
+        hide_cursor = true;
+        grace = 1;
+      };
+      background = {
+        monitor = "";
+        path = "screenshot";
+        blur_passes = 3;
+        blur_size = 7;
+        noise = 1.17e-2;
+        contrast = 0.8916;
+        brightness = 0.8172;
+        vibrancy = 0.1696;
+        vibrancy_darkness = 0.0;
+      };
+      input-field = {
+        monitor = "";
+        size = "200, 50";
+        outline_thickness = 3;
+        dots_size = 0.33;
+        dots_spacing = 0.15;
+        dots_center = false;
+        dots_rounding = -1;
+        outer_color = "rgb(151515)";
+        inner_color = "rgb(200, 200, 200)";
+        font_color = "rgb(10, 10, 10)";
+        fade_on_empty = true;
+        fade_timeout = 1000;
+        placeholder_text = "<i>Input Password...</i>";
+        hide_input = false;
+        rounding = -1;
+        check_color = "rgb(204, 136, 34)";
+        fail_color = "rgb(204, 34, 34)";
+        fail_text = "<i>$FAIL <b>($ATTEMPTS)</b></i>";
+        fail_timeout = 2000;
+        fail_transition = 300;
+        capslock_color = -1;
+        numlock_color = -1;
+        bothlock_color = -1;
+        invert_numlock = false;
+        swap_font_color = false;
+
+        position = "0, -20";
+        halign = "center";
+        valign = "center";
+      };
+    };
+  };
+
+  services.hypridle = {
+    enable = true;
+    settings = {
+      lock_cmd =
+        "pidof hyprlock || hyprlock"; # avoid starting multiple hyprlock instances.
+      before_sleep_cmd = "loginctl lock-session"; # lock before suspend.
+      after_sleep_cmd =
+        "hyprctl dispatch dpms on"; # to avoid having to press a key twice to turn on the display.
+    };
+  };
 }

users/youwen/linux/packages/common-packages.nix

@@ -27,8 +27,8 @@ with pkgs; [
   slurp
   swappy
   pavucontrol
-  swww
   waypaper
+  swaybg
 
   # desktop apps
   dolphin