diff --git a/options/custom/desktops/niri/rules.nix b/options/custom/desktops/niri/rules.nix
index cea22a0..14bdd0c 100644
--- a/options/custom/desktops/niri/rules.nix
+++ b/options/custom/desktops/niri/rules.nix
@@ -13,20 +13,158 @@ in {
   config = mkIf cfg.enable {
     home-manager.users.${config.custom.username} = {
       # https://github.com/YaLTeR/niri/wiki/Configuration:-Window-Rules
-      programs.niri.settings.window-rules = [
-        {
-          geometry-corner-radius = let
-            radius = config.custom.rounding + 0.0; # Convert to float
-          in {
-            top-left = radius;
-            top-right = radius;
-            bottom-right = radius;
-            bottom-left = radius;
-          };
+      programs.niri.settings = {
+        # HACK: Name workspaces after index to use open-on-workspace rule
+        workspaces = {
+          "1" = {};
+          "2" = {};
+          "3" = {};
+        };
 
-          clip-to-geometry = true;
-        }
-      ];
+        window-rules = [
+          ### Defaults
+
+          {
+            # Global
+            geometry-corner-radius = let
+              radius = config.custom.rounding + 0.0; # Convert to float
+            in {
+              top-left = radius;
+              top-right = radius;
+              bottom-right = radius;
+              bottom-left = radius;
+            };
+
+            clip-to-geometry = true;
+          }
+
+          {
+            # Startup
+            #?? <= 60 secs after niri launches
+            matches = [{at-startup = true;}];
+          }
+
+          {
+            # Android
+            matches = [{app-id = "^[Ww]aydroid.*$";}];
+          }
+
+          {
+            # Browsers
+            matches = [
+              {app-id = "^brave-browser$";}
+              {app-id = "^chromium-browser$";}
+              {app-id = "^firefox.*$";}
+              {app-id = "^google-chrome$";}
+              {app-id = "^vivaldi.*$";}
+            ];
+
+            open-on-workspace = "2";
+          }
+
+          {
+            # Chats
+            matches = [
+              {app-id = "^cinny$";}
+              {app-id = "^discord$";}
+              {app-id = "^Element$";}
+              {app-id = "^org\.telegram\.desktop$";}
+            ];
+          }
+
+          {
+            # Dropdown terminal
+            matches = [{app-id = "^dropdown$";}];
+          }
+
+          {
+            # Editors
+            matches = [
+              {app-id = "^codium$";}
+              {app-id = "^obsidian$";}
+            ];
+
+            open-on-workspace = "2";
+          }
+
+          {
+            # Files
+            matches = [{app-id = "^org\.gnome\.Nautilus$";}];
+          }
+
+          {
+            # Games
+            matches = [
+              {app-id = "^.*\.(exe|x86_64)$";}
+              {app-id = "^moe\.launcher\..+$";}
+              {app-id = "^net\.retrodeck\.retrodeck$";}
+              {app-id = "^steam_app_.+$";}
+            ];
+
+            open-on-workspace = "1";
+            variable-refresh-rate = true;
+          }
+
+          {
+            # Media
+            matches = [
+              {app-id = "^org\.gnome\.Loupe$";}
+              {app-id = "^Spotify$";}
+              {app-id = "^totem$";}
+              {app-id = "^YouTube Music$";}
+            ];
+
+            open-on-workspace = "3";
+          }
+
+          {
+            # Office
+            matches = [
+              {app-id = "^draw\.io$";}
+              {app-id = "^libreoffice$";}
+              {app-id = "^ONLYOFFICE Desktop Editors$";}
+            ];
+
+            open-on-workspace = "2";
+          }
+
+          {
+            # PiP
+            matches = [{title = "^Picture.in.[Pp]icture$";}];
+          }
+
+          {
+            # Terminals
+            matches = [
+              {app-id = "^foot$";}
+              {app-id = "^kitty$";}
+              {app-id = "^org\.wezfurlong\.wezterm$";}
+            ];
+          }
+
+          {
+            # Vaults
+            matches = [
+              {app-id = "^1Password$";}
+              {app-id = "^Bitwarden$";}
+            ];
+          }
+
+          {
+            # Virtual machines
+            matches = [
+              {app-id = "^(sdl-|wl|x)freerdp$";}
+              {app-id = "^looking-glass-client$";}
+              {app-id = "^org\.remmina\.Remmina$";}
+              {app-id = "^virt-manager$";}
+            ];
+
+            open-on-workspace = "1";
+          }
+
+          ### Overrides
+        ];
+      };
     };
   };
 }