diff --git a/home/.chezmoiignore.tmpl b/home/.chezmoiignore.tmpl
index 36781b6..8052f49 100644
--- a/home/.chezmoiignore.tmpl
+++ b/home/.chezmoiignore.tmpl
@@ -61,6 +61,7 @@ vim:ft=gotmpl
     .config/bat
     .config/krunnerrc
     .config/fcitx5
+    .config/niri
     .local/share/**
     {{ end }}
 
@@ -136,4 +137,5 @@ vim:ft=gotmpl
 {{/* Secret Management */}}
     {{ if not .manageSecret }}
     .config/aichat
+    .config/pdf2zh
     {{ end }}
diff --git a/nixcfgs/flake.lock b/nixcfgs/flake.lock
index 5bfa77d..d53c1a0 100644
--- a/nixcfgs/flake.lock
+++ b/nixcfgs/flake.lock
@@ -105,6 +105,62 @@
         "type": "github"
       }
     },
+    "niri-flake": {
+      "inputs": {
+        "niri-stable": "niri-stable",
+        "niri-unstable": "niri-unstable",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-stable": "nixpkgs-stable",
+        "xwayland-satellite-stable": "xwayland-satellite-stable",
+        "xwayland-satellite-unstable": "xwayland-satellite-unstable"
+      },
+      "locked": {
+        "lastModified": 1762540449,
+        "narHash": "sha256-AZ/xrJ5JXvpRQYyiVf8Hx4lzFBQAaH9l0utOfvAA28I=",
+        "owner": "sodiboo",
+        "repo": "niri-flake",
+        "rev": "75bacb66302bca38fa6e0c180f1e5369a8115454",
+        "type": "github"
+      },
+      "original": {
+        "owner": "sodiboo",
+        "repo": "niri-flake",
+        "type": "github"
+      }
+    },
+    "niri-stable": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1756556321,
+        "narHash": "sha256-RLD89dfjN0RVO86C/Mot0T7aduCygPGaYbog566F0Qo=",
+        "owner": "YaLTeR",
+        "repo": "niri",
+        "rev": "01be0e65f4eb91a9cd624ac0b76aaeab765c7294",
+        "type": "github"
+      },
+      "original": {
+        "owner": "YaLTeR",
+        "ref": "v25.08",
+        "repo": "niri",
+        "type": "github"
+      }
+    },
+    "niri-unstable": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1762492604,
+        "narHash": "sha256-cjXYF5+gGaapr6d1Jz70GZQVzK4qzwDUwU86p9+H2mM=",
+        "owner": "YaLTeR",
+        "repo": "niri",
+        "rev": "2144f9a6ae7b675213f9bd86d0989c334baa1c00",
+        "type": "github"
+      },
+      "original": {
+        "owner": "YaLTeR",
+        "repo": "niri",
+        "type": "github"
+      }
+    },
     "nix-darwin": {
       "inputs": {
         "nixpkgs": [
@@ -143,21 +199,37 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1761880412,
-        "narHash": "sha256-QoJjGd4NstnyOG4mm4KXF+weBzA2AH/7gn1Pmpfcb0A=",
+        "lastModified": 1762363567,
+        "narHash": "sha256-YRqMDEtSMbitIMj+JLpheSz0pwEr0Rmy5mC7myl17xs=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a7fc11be66bdfb5cdde611ee5ce381c183da8386",
+        "rev": "ae814fd3904b621d8ab97418f1d0f2eb0d3716f4",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1762498405,
+        "narHash": "sha256-Zg/SCgCaAioc0/SVZQJxuECGPJy+OAeBcGeA5okdYDc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6faeb062ee4cf4f105989d490831713cc5a43ee1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-25.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable_2": {
       "locked": {
         "lastModified": 1761999846,
         "narHash": "sha256-IYlYnp4O4dzEpL77BD/lj5NnJy2J8qbHkNSFiPBCbqo=",
@@ -174,6 +246,22 @@
       }
     },
     "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1761880412,
+        "narHash": "sha256-QoJjGd4NstnyOG4mm4KXF+weBzA2AH/7gn1Pmpfcb0A=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a7fc11be66bdfb5cdde611ee5ce381c183da8386",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
       "locked": {
         "lastModified": 1761907660,
         "narHash": "sha256-kJ8lIZsiPOmbkJypG+B5sReDXSD1KGu2VEPNqhRa/ew=",
@@ -192,7 +280,7 @@
     "nur": {
       "inputs": {
         "flake-parts": "flake-parts",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs_3"
       },
       "locked": {
         "lastModified": 1762155241,
@@ -257,10 +345,11 @@
         "caelestia-shell": "caelestia-shell",
         "flake-utils": "flake-utils",
         "home-manager": "home-manager",
+        "niri-flake": "niri-flake",
         "nix-darwin": "nix-darwin",
         "nix-flatpak": "nix-flatpak",
-        "nixpkgs": "nixpkgs",
-        "nixpkgs-stable": "nixpkgs-stable",
+        "nixpkgs": "nixpkgs_2",
+        "nixpkgs-stable": "nixpkgs-stable_2",
         "nur": "nur",
         "plasma-manager": "plasma-manager",
         "sops-nix": "sops-nix"
@@ -300,6 +389,39 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "xwayland-satellite-stable": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1755491097,
+        "narHash": "sha256-m+9tUfsmBeF2Gn4HWa6vSITZ4Gz1eA1F5Kh62B0N4oE=",
+        "owner": "Supreeeme",
+        "repo": "xwayland-satellite",
+        "rev": "388d291e82ffbc73be18169d39470f340707edaa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Supreeeme",
+        "ref": "v0.7",
+        "repo": "xwayland-satellite",
+        "type": "github"
+      }
+    },
+    "xwayland-satellite-unstable": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1762488100,
+        "narHash": "sha256-pD8YqwP0/irHWzJtVElnVljR+OaJPAVbJBwqix+uB5A=",
+        "owner": "Supreeeme",
+        "repo": "xwayland-satellite",
+        "rev": "3cd3edffe1be197326e9314816b16bb4e3d685b1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Supreeeme",
+        "repo": "xwayland-satellite",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/nixcfgs/flake.nix b/nixcfgs/flake.nix
index 047c9f4..f4b03e0 100644
--- a/nixcfgs/flake.nix
+++ b/nixcfgs/flake.nix
@@ -29,6 +29,7 @@
       url = "github:Mic92/sops-nix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    niri-flake.url = "github:sodiboo/niri-flake";
   };
 
   outputs = {
@@ -42,6 +43,7 @@
     nur,
     caelestia-shell,
     sops-nix,
+    niri-flake,
     ...
   } @ inputs: let
     overlays = [
@@ -102,6 +104,7 @@
           plasma-manager.homeModules.plasma-manager
           nix-flatpak.homeManagerModules.nix-flatpak
           sops-nix.homeManagerModules.sops
+          niri-flake.homeModules.niri
         ];
       };
       "js0ny@nixvirt" = home-manager.lib.homeManagerConfiguration {
diff --git a/nixcfgs/users/js0ny/programs/desktop/wayland-wm/niri.nix b/nixcfgs/users/js0ny/programs/desktop/wayland-wm/niri.nix
index 26d96fb..ab5a932 100644
--- a/nixcfgs/users/js0ny/programs/desktop/wayland-wm/niri.nix
+++ b/nixcfgs/users/js0ny/programs/desktop/wayland-wm/niri.nix
@@ -2,33 +2,262 @@
   config,
   pkgs,
   ...
-}: {
+}: let
+  term = config.currentUser.defaultTerminal;
+  termRunner = config.currentUser.defaultTerminalRunner;
+  iconTheme = config.currentUser.iconTheme;
+  explorer = config.currentUser.defaultExplorer;
+  explorerTerm = config.currentUser.defaultTerminalExplorer;
+  launcher = "rofi";
+in {
   imports = [
     ./packages.nix
   ];
-  home.file."${config.xdg.configHome}/niri/config.kdl" = {
-    text = ''
-      spawn-at-startup "waybar" // Status Bar
-      spawn-at-startup "dunst" // Notifications
-      spawn-at-startup "fcitx5" // Input Method
-      spawn-at-startup "${pkgs.hyprpolkitagent}/libexec/hyprpolkitagent"
 
-      screenshot-path "~/Pictures/Screenshots/Screenshot from %Y-%m-%d %H-%M-%S.png"
-      prefer-no-csd // client-side decorations (window decorations)
+  programs.niri = {
+    enable = true;
+    package = pkgs.niri;
 
-      input {
-        keyboard {
-            xkb {}
-            numlock
+    settings = {
+      prefer-no-csd = true;
+      screenshot-path = "~/Pictures/Screenshots/Screenshot from %Y-%m-%d %H-%M-%S.png";
+
+      spawn-at-startup = [
+        {argv = ["waybar"];}
+        {argv = ["dunst"];}
+        {argv = ["fcitx5"];}
+        # polkit/portal helpers
+        {argv = ["${pkgs.kdePackages.xdg-desktop-portal-kde}/libexec/xdg-desktop-portal-kde"];}
+        {argv = ["${pkgs.hyprpolkitagent}/libexec/hyprpolkitagent"];}
+      ];
+
+      input = {
+        keyboard = {
+          xkb = {};
+          numlock = true;
+        };
+
+        touchpad = {
+          tap = true;
+          natural-scroll = true;
+        };
+
+        mouse = {};
+        trackpoint = {};
+      };
+
+      layout = {
+        gaps = 16;
+        center-focused-column = "never";
+
+        preset-column-widths = [
+          {proportion = 0.33333;}
+          {proportion = 0.5;}
+          {proportion = 0.66667;}
+        ];
+
+        default-column-width = {proportion = 0.5;};
+
+        focus-ring = {
+          enable = true;
+          width = 4;
+          active.color = "#7fc8ff";
+          inactive.color = "#505050";
+        };
+
+        border = {
+          enable = false;
+          width = 4;
+          active.color = "#ffc87f";
+          inactive.color = "#505050";
+          urgent.color = "#9b0000";
+        };
+
+        shadow = {
+          enable = false;
+          softness = 30;
+          spread = 5;
+          offset = {
+            x = 0;
+            y = 5;
+          };
+          color = "#0007";
+        };
+      };
+
+      window-rules = [
+        {
+          matches = [
+            {
+              app-id = "firefox$";
+              title = "^Picture-in-Picture$";
+            }
+          ];
+          open-floating = true;
         }
-        touchpad {
-            tap
-            naturalscroll
-        }
-        mouse {}
-        trackpoint {}
-      }
-    '';
-    enable = false; # TODO:
+      ];
+
+      binds = with config.lib.niri.actions; {
+        "Mod+Shift+Slash".action = show-hotkey-overlay;
+
+        "Mod+Return".hotkey-overlay.title = "Open a Terminal: ${term}";
+        "Mod+Return".action = spawn "${term}";
+
+        "Mod+D".hotkey-overlay.title = "Run an Application: rofi";
+        "Mod+D".action =
+          spawn "${launcher}" "-show" "drun" "-icon-theme" "${iconTheme}" "-show-icons";
+
+        "Alt+Space".hotkey-overlay.title = "Run an Application: rofi";
+        "Alt+Space".action =
+          spawn "${launcher}" "-show" "drun" "-icon-theme" "${iconTheme}" "-show-icons";
+
+        "Mod+Shift+W".hotkey-overlay.title = "Search open Window: rofi";
+        "Mod+Shift+W".action =
+          spawn "${launcher}" "-show" "window" "-icon-theme" "${iconTheme}" "-show-icons";
+
+        "Mod+E".hotkey-overlay.title = "Run file explorer";
+        "Mod+E".action = spawn "${explorer}";
+        "Mod+Shift+E".hotkey-overlay.title = "Run terminal explorer";
+        "Mod+Shift+E".action = spawn "${termRunner}" "${explorerTerm}";
+
+        "XF86AudioRaiseVolume".allow-when-locked = true;
+        "XF86AudioRaiseVolume".action =
+          spawn "wpctl" "set-volume" "@DEFAULT_AUDIO_SINK@" "0.1+";
+        "XF86AudioLowerVolume".allow-when-locked = true;
+        "XF86AudioLowerVolume".action =
+          spawn "wpctl" "set-volume" "@DEFAULT_AUDIO_SINK@" "0.1-";
+        "XF86AudioMute".allow-when-locked = true;
+        "XF86AudioMute".action = spawn "wpctl" "set-mute" "@DEFAULT_AUDIO_SINK@" "toggle";
+        "XF86AudioMicMute".allow-when-locked = true;
+        "XF86AudioMicMute".action = spawn "wpctl" "set-mute" "@DEFAULT_AUDIO_SOURCE@" "toggle";
+
+        "Mod+Tab".action = toggle-overview;
+        "Mod+Q".action = close-window;
+
+        "Mod+Left".action = focus-column-left;
+        "Mod+Down".action = focus-window-down;
+        "Mod+Up".action = focus-window-up;
+        "Mod+Right".action = focus-column-right;
+        "Mod+H".action = focus-column-left;
+        "Mod+J".action = focus-window-down;
+        "Mod+K".action = focus-window-up;
+        "Mod+L".action = focus-column-right;
+
+        "Mod+Shift+Left".action = move-column-left;
+        "Mod+Shift+Down".action = move-window-down;
+        "Mod+Shift+Up".action = move-window-up;
+        "Mod+Shift+Right".action = move-column-right;
+        "Mod+Shift+H".action = move-column-left;
+        "Mod+Shift+J".action = move-window-down;
+        "Mod+Shift+K".action = move-window-up;
+        "Mod+Shift+L".action = move-column-right;
+
+        "Mod+Home".action = focus-column-first;
+        "Mod+End".action = focus-column-last;
+        "Mod+Ctrl+Home".action = move-column-to-first;
+        "Mod+Ctrl+End".action = move-column-to-last;
+
+        "Mod+Alt+Left".action = focus-monitor-left;
+        "Mod+Alt+Down".action = focus-monitor-down;
+        "Mod+Alt+Up".action = focus-monitor-up;
+        "Mod+Alt+Right".action = focus-monitor-right;
+        "Mod+Alt+H".action = focus-monitor-left;
+        "Mod+Alt+J".action = focus-monitor-down;
+        "Mod+Alt+K".action = focus-monitor-up;
+        "Mod+Alt+L".action = focus-monitor-right;
+
+        "Mod+Shift+Ctrl+Left".action = move-column-to-monitor-left;
+        "Mod+Shift+Ctrl+Down".action = move-column-to-monitor-down;
+        "Mod+Shift+Ctrl+Up".action = move-column-to-monitor-up;
+        "Mod+Shift+Ctrl+Right".action = move-column-to-monitor-right;
+        "Mod+Shift+Ctrl+H".action = move-column-to-monitor-left;
+        "Mod+Shift+Ctrl+J".action = move-column-to-monitor-down;
+        "Mod+Shift+Ctrl+K".action = move-column-to-monitor-up;
+        "Mod+Shift+Ctrl+L".action = move-column-to-monitor-right;
+
+        "Mod+Page_Down".action = focus-workspace-down;
+        "Mod+Page_Up".action = focus-workspace-up;
+        "Mod+U".action = focus-workspace-down;
+        "Mod+I".action = focus-workspace-up;
+        "Mod+Ctrl+Page_Down".action = move-column-to-workspace-down;
+        "Mod+Ctrl+Page_Up".action = move-column-to-workspace-up;
+        "Mod+Ctrl+U".action = move-column-to-workspace-down;
+        "Mod+Ctrl+I".action = move-column-to-workspace-up;
+
+        "Mod+Shift+Page_Down".action = move-workspace-down;
+        "Mod+Shift+Page_Up".action = move-workspace-up;
+        "Mod+Shift+U".action = move-workspace-down;
+        "Mod+Shift+I".action = move-workspace-up;
+
+        "Mod+WheelScrollDown".cooldown-ms = 150;
+        "Mod+WheelScrollDown".action = focus-workspace-down;
+        "Mod+WheelScrollUp".cooldown-ms = 150;
+        "Mod+WheelScrollUp".action = focus-workspace-up;
+        "Mod+Ctrl+WheelScrollDown".cooldown-ms = 150;
+        "Mod+Ctrl+WheelScrollDown".action = move-column-to-workspace-down;
+        "Mod+Ctrl+WheelScrollUp".cooldown-ms = 150;
+        "Mod+Ctrl+WheelScrollUp".action = move-column-to-workspace-up;
+
+        "Mod+WheelScrollRight".action = focus-column-right;
+        "Mod+WheelScrollLeft".action = focus-column-left;
+        "Mod+Ctrl+WheelScrollRight".action = move-column-right;
+        "Mod+Ctrl+WheelScrollLeft".action = move-column-left;
+
+        "Mod+Shift+WheelScrollDown".action = focus-column-right;
+        "Mod+Shift+WheelScrollUp".action = focus-column-left;
+        "Mod+Ctrl+Shift+WheelScrollDown".action = move-column-right;
+        "Mod+Ctrl+Shift+WheelScrollUp".action = move-column-left;
+
+        "Mod+1".action = focus-workspace 1;
+        "Mod+2".action = focus-workspace 2;
+        "Mod+3".action = focus-workspace 3;
+        "Mod+4".action = focus-workspace 4;
+        "Mod+5".action = focus-workspace 5;
+        "Mod+6".action = focus-workspace 6;
+        "Mod+7".action = focus-workspace 7;
+        "Mod+8".action = focus-workspace 8;
+        "Mod+9".action = focus-workspace 9;
+        "Mod+Shift+1".action.move-column-to-workspace = 1;
+        "Mod+Shift+2".action.move-column-to-workspace = 2;
+        "Mod+Shift+3".action.move-column-to-workspace = 3;
+        "Mod+Shift+4".action.move-column-to-workspace = 4;
+        "Mod+Shift+5".action.move-column-to-workspace = 5;
+        "Mod+Shift+6".action.move-column-to-workspace = 6;
+        "Mod+Shift+7".action.move-column-to-workspace = 7;
+        "Mod+Shift+8".action.move-column-to-workspace = 8;
+        "Mod+Shift+9".action.move-column-to-workspace = 9;
+
+        "Mod+BracketLeft".action = consume-or-expel-window-left;
+        "Mod+BracketRight".action = consume-or-expel-window-right;
+        "Mod+Comma".action = consume-window-into-column;
+        "Mod+Period".action = expel-window-from-column;
+
+        "Mod+R".action = switch-preset-column-width;
+        "Mod+Shift+R".action = switch-preset-window-height;
+        "Mod+Ctrl+R".action = reset-window-height;
+        "Mod+F".action = maximize-column;
+        "Mod+Shift+M".action = fullscreen-window;
+        "Mod+Ctrl+F".action = expand-column-to-available-width;
+        "Mod+C".action = center-column;
+        "Mod+Ctrl+C".action = center-visible-columns;
+        "Mod+Minus".action = set-column-width "-10%";
+        "Mod+Equal".action = set-column-width "+10%";
+        "Mod+Shift+Minus".action = set-window-height "-10%";
+        "Mod+Shift+Equal".action = set-window-height "+10%";
+        "Mod+V".action = toggle-window-floating;
+        "Mod+Shift+V".action = switch-focus-between-floating-and-tiling;
+        "Mod+W".action = toggle-column-tabbed-display;
+
+        "Mod+Shift+S".action.screenshot = {show-pointer = true;};
+        "Print".action.screenshot = {show-pointer = true;};
+        # "Ctrl+Print".action.screenshot-screen  = {true};
+        "Alt+Print".action.screenshot-window = {write-to-disk = true;};
+
+        "Mod+Escape".allow-inhibiting = false;
+        "Mod+Escape".action = toggle-keyboard-shortcuts-inhibit;
+
+        "Ctrl+Alt+Delete".action = quit;
+      };
+    };
   };
 }
diff --git a/nixcfgs/users/js0ny/programs/desktop/wayland-wm/packages.nix b/nixcfgs/users/js0ny/programs/desktop/wayland-wm/packages.nix
index 5f26780..efb906d 100644
--- a/nixcfgs/users/js0ny/programs/desktop/wayland-wm/packages.nix
+++ b/nixcfgs/users/js0ny/programs/desktop/wayland-wm/packages.nix
@@ -1,4 +1,11 @@
-{pkgs, ...}: {
+{pkgs, ...}: let
+  swayidleWrapper = pkgs.writeShellScriptBin "swayidle-wrapper" ''
+    ${pkgs.swayidle}/bin/swayidle -w \
+             timeout 300 'swaylock -f' \
+             timeout 600 'swaymsg "output * power off"' resume 'swaymsg "output * power on"' \
+             before-sleep 'swaylock -f -c 000000'
+  '';
+in {
   imports = [
     ../../rofi.nix
     ./waybar.nix
@@ -6,9 +13,13 @@
   home.packages = with pkgs; [
     swayidle # Screensaver
     dunst # Notification daemon
-    swaylock-effects # Screensaver
     cliphist # Clipboard daemon
     swww # Wallpaper daemon
     wmname
+    swayidleWrapper
   ];
+  programs.swaylock = {
+    enable = true;
+    package = pkgs.swaylock-effects;
+  };
 }
diff --git a/nixcfgs/users/js0ny/programs/pdf2zh.nix b/nixcfgs/users/js0ny/programs/pdf2zh.nix
index df224fb..75dd442 100644
--- a/nixcfgs/users/js0ny/programs/pdf2zh.nix
+++ b/nixcfgs/users/js0ny/programs/pdf2zh.nix
@@ -7,6 +7,10 @@
 
     IMAGE_TAG="${imageTag}"
 
+    OPENROUTER_API_KEY="$OPENROUTER_API_KEY"
+    OPENROUTER_API_BASE="https://openrouter.ai/api/v1"
+    OPENROUTER_DEFAULT_MODEL="google/gemini-2.5-flash"
+
     if ! podman image exists "$IMAGE_TAG"; then
       echo "[pdf2zh] Pulling image $IMAGE_TAG ..."
       podman pull "$IMAGE_TAG"
@@ -16,7 +20,7 @@
       -p 7860:7860 \
       -v "$(pwd):/data" \
       -w /data \
-      "$IMAGE_TAG" "pdf2zh" "$@"
+      "$IMAGE_TAG" "pdf2zh" --openai-compatible-model $OPENROUTER_DEFAULT_MODEL --openai-compatible-base-url $OPENROUTER_API_BASE --openai-compatible-api-key $OPENROUTER_API_KEY "$@"
   '';
   descEn = "PDF scientific paper translation with preserved formats";
   descZh = "基于 AI 完整保留排版的 PDF 文档全文双语翻译";
@@ -32,7 +36,7 @@ in {
   home.packages = [pdf2zhRunner];
 
   home.file.".local/share/kio/servicemenus/pdf2zh.desktop" = {
-    enable = true;
+    enable = false; # TODO: Write a wrapper for status tracking
     executable = true;
     text = ''
       [Desktop Entry]