diff --git a/home/modules/default.nix b/home/modules/default.nix
index f5bf6d5..0ac2c86 100644
--- a/home/modules/default.nix
+++ b/home/modules/default.nix
@@ -11,5 +11,6 @@
     ./steam
     ./yubikey.nix
     ./browsers.nix
+    ./gui
   ];
 }
diff --git a/home/modules/gui/autorandr.nix b/home/modules/gui/autorandr.nix
new file mode 100644
index 0000000..ed35e99
--- /dev/null
+++ b/home/modules/gui/autorandr.nix
@@ -0,0 +1,32 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.local.gui;
+in {
+  programs.autorandr = {
+    profiles."default" = {
+      fingerprint =
+        mapAttrs
+        (monitorId: monitor: monitor.fingerprint)
+        cfg.monitors;
+
+      config =
+        mapAttrs (
+          monitorId:
+            filterAttrs
+            (k: v:
+              !elem k [
+                #list of options to exclude from this list
+                "fingerprint"
+                "initialI3Workspace"
+                "monitorId"
+              ])
+        )
+        cfg.monitors;
+    };
+  };
+}
diff --git a/home/modules/gui/default.nix b/home/modules/gui/default.nix
new file mode 100644
index 0000000..9dcf14c
--- /dev/null
+++ b/home/modules/gui/default.nix
@@ -0,0 +1,116 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.local.gui;
+  monitorType = {setName}: (
+    types.submodule ({name ? null, ...}: {
+      options = {
+        monitorId = mkOption {
+          type = types.str;
+          example = "DP-1";
+          readOnly = true;
+          internal = true;
+        };
+        primary = mkOption {
+          type = types.bool;
+          default = false;
+          description = "is primary monitor";
+          example = "true";
+        };
+        position = mkOption {
+          type = types.str;
+          example = "0x0";
+        };
+        mode = mkOption {
+          type = types.str;
+          description = "resolution";
+          default = "1920x1080";
+          example = "1920x1080";
+        };
+        rate = mkOption {
+          type = types.str;
+          description = "refresh rate";
+          example = "143.85";
+        };
+        rotate = mkOption {
+          type = types.str;
+          default = "normal";
+          example = "left";
+        };
+        fingerprint = mkOption {
+          type = types.str;
+          example = "00ffffffffffff003669a03bd4040000231e0104a5341d783bd005ac5048a627125054bfcf00814081809500714f81c0b30001010101023a801871382d40582c450009252100001e0882805070384d400820f80c09252100001a000000fd003090b4b422010a202020202020000000fc004d53492047323443340a20202001a2020320f14d010304131f120211900e0f1d1e230907078301000065030c001000866f80a0703840403020350009252100001a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e9";
+        };
+        initialI3Workspace = mkOption {
+          type = types.nullOr types.int;
+          default = null;
+          example = 1;
+        };
+      };
+      config = optionalAttrs setName {
+        # make this better later
+        monitorId = name;
+      };
+    })
+  );
+in {
+  options.local.gui = {
+    enable = mkEnableOption "GUI settings";
+    primaryMonitor = mkOption {
+      type = monitorType {setName = false;};
+      readOnly = true;
+      internal = true;
+    };
+    monitors = mkOption {
+      type = types.attrsOf (monitorType {setName = true;});
+    };
+    displayBatteryLevel = mkOption {
+      type = types.bool;
+      default = false;
+      description = "show battery level on polybar";
+      example = "true";
+    };
+  };
+
+  imports = [
+    ./autorandr.nix
+    ./fonts.nix
+    ./i3.nix
+    ./polybar.nix
+    ./startx.nix # move to ly once 24.11 comes out :(
+    ./picom.nix
+  ];
+
+  config = let
+    primaryMonitors =
+      filter (monitor: monitor.primary)
+      (attrValues cfg.monitors);
+  in
+    mkIf cfg.enable {
+      assertions = [
+        {
+          assertion = length primaryMonitors == 1;
+          message = "Exactly one (1) primary monitor is requiered.";
+        }
+      ];
+
+      local.gui.primaryMonitor = head primaryMonitors;
+
+      xsession = {
+        enable = true;
+        windowManager.i3.enable = true;
+      };
+
+      programs.autorandr.enable = true;
+      services = {
+        dunst.enable = true;
+        betterlockscreen.enable = true;
+        polybar.enable = true;
+        picom.enable = true;
+      };
+    };
+}
diff --git a/home/platforms/fabian@posixlycorrect/gui/fonts.nix b/home/modules/gui/fonts.nix
similarity index 100%
rename from home/platforms/fabian@posixlycorrect/gui/fonts.nix
rename to home/modules/gui/fonts.nix
diff --git a/home/platforms/fabian@posixlycorrect/gui/gtk.nix b/home/modules/gui/gtk.nix
similarity index 72%
rename from home/platforms/fabian@posixlycorrect/gui/gtk.nix
rename to home/modules/gui/gtk.nix
index eae736f..fdd2712 100644
--- a/home/platforms/fabian@posixlycorrect/gui/gtk.nix
+++ b/home/modules/gui/gtk.nix
@@ -1,4 +1,3 @@
-#TODO: do i really need to take all these args?
 {
   config,
   lib,
diff --git a/home/platforms/fabian@posixlycorrect/gui/i3.nix b/home/modules/gui/i3.nix
similarity index 88%
rename from home/platforms/fabian@posixlycorrect/gui/i3.nix
rename to home/modules/gui/i3.nix
index d38e9f2..1ed3030 100644
--- a/home/platforms/fabian@posixlycorrect/gui/i3.nix
+++ b/home/modules/gui/i3.nix
@@ -6,7 +6,6 @@
 }:
 with lib; {
   xsession.windowManager.i3 = {
-    enable = true;
     package = pkgs.i3-gaps;
 
     config = let
@@ -87,17 +86,17 @@ with lib; {
         }
       ];
 
-      workspaceOutputAssign = [
-        {
-          output = "DP-1";
-          workspace = "1";
-        }
-        {
-          output = "DP-2";
-          workspace = "10";
-        }
-      ];
-
+      workspaceOutputAssign =
+        mapAttrsToList (
+          monitorId: v:
+            {
+              output = monitorId;
+            }
+            // optionalAttrs (v.initialI3Workspace != null) {
+              workspace = toString v.initialI3Workspace;
+            }
+        )
+        config.local.gui.monitors;
       bars = [];
     };
   };
diff --git a/home/platforms/fabian@posixlycorrect/gui/picom.nix b/home/modules/gui/picom.nix
similarity index 97%
rename from home/platforms/fabian@posixlycorrect/gui/picom.nix
rename to home/modules/gui/picom.nix
index 22a18ab..8807f67 100644
--- a/home/platforms/fabian@posixlycorrect/gui/picom.nix
+++ b/home/modules/gui/picom.nix
@@ -5,7 +5,6 @@
   ...
 }: {
   services.picom = {
-    enable = true;
     fade = true;
     fadeSteps = [0.1 0.1];
     fadeDelta = 10;
diff --git a/home/platforms/fabian@posixlycorrect/gui/polybar.nix b/home/modules/gui/polybar.nix
similarity index 97%
rename from home/platforms/fabian@posixlycorrect/gui/polybar.nix
rename to home/modules/gui/polybar.nix
index c6bf6d2..8012b3b 100644
--- a/home/platforms/fabian@posixlycorrect/gui/polybar.nix
+++ b/home/modules/gui/polybar.nix
@@ -6,7 +6,6 @@
 }:
 with lib; {
   services.polybar = {
-    enable = true;
     package = pkgs.polybarFull;
     script = ''
       # Terminate already running bar instances
@@ -33,7 +32,7 @@ with lib; {
       };
 
       "bar/main" = {
-        monitor = "DP-1";
+        monitor = config.local.gui.primaryMonitor.monitorId;
         width = "100%";
         height = 30;
         offset-x = "0%";
@@ -82,7 +81,9 @@ with lib; {
       };
 
       "bar/secondary" = {
-        monitor = "DP-2";
+        monitor = head (attrNames (filterAttrs (monitorId: v:
+          !v.primary)
+        config.local.gui.monitors)); # this is bad. will fail if more than 2 monitors. this sets all monitors other than the primary one for this bar.
         "inherit" = "bar/main";
 
         modules-left = "i3";
diff --git a/home/modules/gui/startx.nix b/home/modules/gui/startx.nix
new file mode 100644
index 0000000..6aaaf9f
--- /dev/null
+++ b/home/modules/gui/startx.nix
@@ -0,0 +1,16 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; {
+  config = mkIf config.local.gui.enable {
+    home.file.".xinitrc".source = let
+      content = ''
+        exec ~/.xsession
+      '';
+    in
+      pkgs.writeShellScript "xinitrc" content;
+  };
+}
diff --git a/home/platforms/fabian@posixlycorrect/default.nix b/home/platforms/fabian@posixlycorrect/default.nix
index b24596e..03f82b4 100644
--- a/home/platforms/fabian@posixlycorrect/default.nix
+++ b/home/platforms/fabian@posixlycorrect/default.nix
@@ -8,7 +8,6 @@
   imports = [
     ./apps.nix
     ./systemd
-    ./gui
     ./isolation.nix
   ];
 
@@ -22,6 +21,28 @@
     "unstable".flake = flakes.unstable;
   };
 
+  local.gui = {
+    enable = true;
+    #? wallpaperPath = ""; place wallpaper in config?
+    monitors = {
+      DP-1 = {
+        primary = true;
+        position = "0x0";
+        mode = "1920x1080";
+        rate = "143.85";
+        fingerprint = "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";
+        initialI3Workspace = 1;
+      };
+      DP-2 = {
+        position = "1920x0";
+        mode = "1920x1080";
+        rate = "59.94";
+        fingerprint = "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";
+        initialI3Workspace = 10;
+      };
+    };
+  };
+
   home = {
     stateVersion = "21.11"; # No tocar esto
     username = "fabian";
diff --git a/home/platforms/fabian@posixlycorrect/gui/autorandr.nix b/home/platforms/fabian@posixlycorrect/gui/autorandr.nix
deleted file mode 100644
index d645250..0000000
--- a/home/platforms/fabian@posixlycorrect/gui/autorandr.nix
+++ /dev/null
@@ -1,35 +0,0 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
-}: {
-  programs.autorandr = {
-    enable = true;
-    profiles."posixlycorrect" = {
-      fingerprint = {
-        DP-1 = "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";
-        DP-2 = "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";
-      };
-      config = {
-        DP-1 = {
-          enable = true;
-          primary = true;
-          position = "0x0";
-          mode = "1920x1080";
-          rate = "143.85";
-          rotate = "normal";
-        };
-
-        DP-2 = {
-          enable = true;
-          primary = false;
-          position = "1920x0";
-          mode = "1920x1080";
-          rate = "59.94";
-          rotate = "normal";
-        };
-      };
-    };
-  };
-}
diff --git a/home/platforms/fabian@posixlycorrect/gui/default.nix b/home/platforms/fabian@posixlycorrect/gui/default.nix
deleted file mode 100644
index dd66640..0000000
--- a/home/platforms/fabian@posixlycorrect/gui/default.nix
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  config,
-  pkgs,
-  lib,
-  ...
-}: {
-  imports = [
-    ./autorandr.nix
-    ./fonts.nix
-    ./i3.nix
-    ./polybar.nix
-    ./startx.nix
-    ./picom.nix
-  ];
-
-  services = {
-    dunst.enable = true;
-    betterlockscreen.enable = true;
-  };
-}
diff --git a/home/platforms/fabian@posixlycorrect/gui/startx.nix b/home/platforms/fabian@posixlycorrect/gui/startx.nix
deleted file mode 100644
index d19e317..0000000
--- a/home/platforms/fabian@posixlycorrect/gui/startx.nix
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
-}:
-with lib; {
-  xsession.enable = true;
-
-  home.file.".xinitrc".source = let
-    content = ''
-      exec ~/.xsession
-    '';
-  in
-    pkgs.writeShellScript "xinitrc" content;
-}