diff --git a/config/karabiner/karabiner.json b/config/karabiner/karabiner.json
index 3016513..863dbef 100644
--- a/config/karabiner/karabiner.json
+++ b/config/karabiner/karabiner.json
@@ -3,48 +3,6 @@
     {
       "complex_modifications": {
         "rules": [
-          {
-            "description": "Caps Lock + 6 = Open Telegram",
-            "manipulators": [
-              {
-                "from": {
-                  "key_code": "6",
-                  "modifiers": {
-                    "mandatory": [
-                      "option"
-                    ]
-                  }
-                },
-                "to": [
-                  {
-                    "shell_command": "open -a 'Telegram'"
-                  }
-                ],
-                "type": "basic"
-              }
-            ]
-          },
-          {
-            "description": "Caps Lock + 5 = Open Riptide",
-            "manipulators": [
-              {
-                "from": {
-                  "key_code": "5",
-                  "modifiers": {
-                    "mandatory": [
-                      "option"
-                    ]
-                  }
-                },
-                "to": [
-                  {
-                    "shell_command": "open -a 'Riptide-Beta'"
-                  }
-                ],
-                "type": "basic"
-              }
-            ]
-          },
           {
             "description": "Caps Lock to Control (held) / Escape (tapped)",
             "manipulators": [
@@ -71,90 +29,6 @@
               }
             ]
           },
-          {
-            "description": "Caps Lock + 1 = Open Helium",
-            "manipulators": [
-              {
-                "from": {
-                  "key_code": "1",
-                  "modifiers": {
-                    "mandatory": [
-                      "option"
-                    ]
-                  }
-                },
-                "to": [
-                  {
-                    "shell_command": "open -a 'Helium'"
-                  }
-                ],
-                "type": "basic"
-              }
-            ]
-          },
-          {
-            "description": "Caps Lock + 2 = Open Ghostty",
-            "manipulators": [
-              {
-                "from": {
-                  "key_code": "2",
-                  "modifiers": {
-                    "mandatory": [
-                      "option"
-                    ]
-                  }
-                },
-                "to": [
-                  {
-                    "shell_command": "open -a 'Ghostty'"
-                  }
-                ],
-                "type": "basic"
-              }
-            ]
-          },
-          {
-            "description": "Caps Lock + 3 = Open Messages",
-            "manipulators": [
-              {
-                "from": {
-                  "key_code": "3",
-                  "modifiers": {
-                    "mandatory": [
-                      "option"
-                    ]
-                  }
-                },
-                "to": [
-                  {
-                    "shell_command": "open -a 'Messages'"
-                  }
-                ],
-                "type": "basic"
-              }
-            ]
-          },
-          {
-            "description": "Caps Lock + 4 = Open Signal",
-            "manipulators": [
-              {
-                "from": {
-                  "key_code": "4",
-                  "modifiers": {
-                    "mandatory": [
-                      "option"
-                    ]
-                  }
-                },
-                "to": [
-                  {
-                    "shell_command": "open -a 'Signal'"
-                  }
-                ],
-                "type": "basic"
-              }
-            ]
-          },
           {
             "description": "Caps Lock + H = Left Arrow",
             "manipulators": [
diff --git a/home/aerospace.nix b/home/aerospace.nix
new file mode 100644
index 0000000..fb90776
--- /dev/null
+++ b/home/aerospace.nix
@@ -0,0 +1,187 @@
+{ ... }:
+{
+  programs.aerospace = {
+    enable = true;
+
+    launchd = {
+      enable = true;
+      keepAlive = true;
+    };
+
+    settings = {
+      # Normalizations
+      enable-normalization-flatten-containers = true;
+      enable-normalization-opposite-orientation-for-nested-containers = true;
+
+      # Layout defaults
+      default-root-container-layout = "tiles";
+      default-root-container-orientation = "auto";
+      accordion-padding = 30;
+
+      # Mouse follows focus when switching monitors
+      on-focused-monitor-changed = [ "move-mouse monitor-lazy-center" ];
+
+      # Gaps between windows
+      gaps = {
+        inner.horizontal = 10;
+        inner.vertical = 10;
+        outer.left = 10;
+        outer.right = 10;
+        outer.top = 10;
+        outer.bottom = 10;
+      };
+
+      # Auto-assign apps to workspaces
+      on-window-detected = [
+        # Browsers -> workspace 1
+        {
+          "if".app-id = "com.apple.Safari";
+          run = "move-node-to-workspace 1";
+        }
+        {
+          "if".app-id = "company.thebrowser.Browser";
+          run = "move-node-to-workspace 1";
+        }
+        # Terminals -> workspace 2
+        {
+          "if".app-id = "com.apple.Terminal";
+          run = "move-node-to-workspace 2";
+        }
+        {
+          "if".app-id = "com.mitchellh.ghostty";
+          run = "move-node-to-workspace 2";
+        }
+        {
+          "if".app-id = "com.googlecode.iterm2";
+          run = "move-node-to-workspace 2";
+        }
+        # Editors -> workspace 3
+        {
+          "if".app-id = "com.microsoft.VSCode";
+          run = "move-node-to-workspace 3";
+        }
+        {
+          "if".app-id = "dev.zed.Zed";
+          run = "move-node-to-workspace 3";
+        }
+        # Chat -> workspace 4
+        {
+          "if".app-id = "com.tinyspeck.slackmacgap";
+          run = "move-node-to-workspace 4";
+        }
+        {
+          "if".app-id = "ru.keepcoder.Telegram";
+          run = "move-node-to-workspace 4";
+        }
+        {
+          "if".app-id = "org.whispersystems.signal-desktop";
+          run = "move-node-to-workspace 4";
+        }
+        {
+          "if".app-id = "com.apple.MobileSMS";
+          run = "move-node-to-workspace 4";
+        }
+        # Media -> workspace 5
+        {
+          "if".app-id = "com.spotify.client";
+          run = "move-node-to-workspace 5";
+        }
+      ];
+
+      mode.main.binding = {
+        # Focus windows (arrow keys - alt+hjkl taken by Karabiner scroll)
+        alt-left = "focus left";
+        alt-down = "focus down";
+        alt-up = "focus up";
+        alt-right = "focus right";
+
+        # Move windows
+        alt-shift-left = "move left";
+        alt-shift-down = "move down";
+        alt-shift-up = "move up";
+        alt-shift-right = "move right";
+
+        # Switch workspaces
+        alt-1 = "workspace 1";
+        alt-2 = "workspace 2";
+        alt-3 = "workspace 3";
+        alt-4 = "workspace 4";
+        alt-5 = "workspace 5";
+        alt-6 = "workspace 6";
+        alt-7 = "workspace 7";
+        alt-8 = "workspace 8";
+        alt-9 = "workspace 9";
+
+        # Move window to workspace
+        alt-shift-1 = "move-node-to-workspace 1";
+        alt-shift-2 = "move-node-to-workspace 2";
+        alt-shift-3 = "move-node-to-workspace 3";
+        alt-shift-4 = "move-node-to-workspace 4";
+        alt-shift-5 = "move-node-to-workspace 5";
+        alt-shift-6 = "move-node-to-workspace 6";
+        alt-shift-7 = "move-node-to-workspace 7";
+        alt-shift-8 = "move-node-to-workspace 8";
+        alt-shift-9 = "move-node-to-workspace 9";
+
+        # Layout toggles
+        alt-slash = "layout tiles horizontal vertical";
+        alt-comma = "layout accordion horizontal vertical";
+
+        # Fullscreen
+        alt-f = "fullscreen";
+
+        # Float toggle
+        alt-shift-f = "layout floating tiling";
+
+        # Balance window sizes
+        alt-shift-b = "balance-sizes";
+
+        # Last workspace
+        alt-backtick = "workspace-back-and-forth";
+
+        # Monitor focus/move
+        alt-period = "focus-monitor next";
+        alt-shift-period = "move-node-to-monitor next";
+        alt-shift-comma = "move-workspace-to-monitor next";
+
+        # Modes
+        alt-shift-r = "mode resize";
+        alt-shift-semicolon = "mode service";
+
+        # Screenshot to clipboard
+        alt-shift-s = "exec-and-forget screencapture -i -c";
+      };
+
+      mode.resize.binding = {
+        h = "resize width -50";
+        j = "resize height +50";
+        k = "resize height -50";
+        l = "resize width +50";
+        minus = "resize smart -50";
+        equal = "resize smart +50";
+        enter = "mode main";
+        esc = "mode main";
+      };
+
+      mode.service.binding = {
+        r = [
+          "reload-config"
+          "mode main"
+        ];
+        f = [
+          "flatten-workspace-tree"
+          "mode main"
+        ];
+        b = [
+          "balance-sizes"
+          "mode main"
+        ];
+        esc = "mode main";
+        backspace = [
+          "close-all-windows-but-current"
+          "mode main"
+        ];
+      };
+    };
+  };
+}
diff --git a/home/default.nix b/home/default.nix
index 50a110c..ec4573d 100644
--- a/home/default.nix
+++ b/home/default.nix
@@ -10,7 +10,7 @@
   ++ lib.optionals hostConfig.isDarwin [
     ./colima.nix
     ./helium.nix
-    ./rectangle.nix
+    ./aerospace.nix
     ./karabiner.nix
   ]
   ++ lib.optionals hostConfig.isLinux [
diff --git a/home/rectangle.nix b/home/rectangle.nix
deleted file mode 100644
index cf7c154..0000000
--- a/home/rectangle.nix
+++ /dev/null
@@ -1,6 +0,0 @@
-{ lib, ... }:
-{
-  home.activation.importRectanglePreferences = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
-    /usr/bin/defaults import com.knollsoft.Rectangle ${../config/rectangle/Rectangle.plist}
-  '';
-}