kinda works

nix/configurations/vm.nix

@@ -7,6 +7,7 @@ in
   {
     config,
     lib,
+    pkgs,
     ...
   }: let
     inherit (lib.modules) mkAliasOptionModule;
@@ -29,20 +30,12 @@ in
       {
         nixpkgs = {
           overlays = map import [
-            ../overlays/agenix.nix
-            ../overlays/disko.nix
-            ../overlays/nur.nix
-            ../overlays/wired-notify.nix
-            ../overlays/nix-tree.nix
-            ../overlays/wallpapers.nix
-
             ../overlays/packages.nix
-            ./vanadium/overlay.nix
           ];
-
+          config.allowUnfreePredicate = pkg:
-          # Set NIX_PATH and flake registry at the same time
+            builtins.elem (lib.getName pkg) [
-          # https://github.com/NixOS/nixpkgs/pull/254405
+              "posy-cursors"
-          flake.source = sources.nixpkgs;
+            ];
         };
 
         system.nixos.version = lib.substring 0 8 sources.nixpkgs.rev;
@@ -51,15 +44,30 @@ in
       #
       # NixOS modules
       #
-      ./vanadium/nixos/gui.nix
+      {
+        services.xserver.windowManager.xmonad = {
+          enable = true;
+          enableContribAndExtras = true;
+        };
 
-      ./vanadium/nixos/locale.nix
+        services.xserver = {
-      ./vanadium/nixos/unfree-predicate.nix
+          enable = true;
+          autoRepeatDelay = 300;
+          autoRepeatInterval = 40;
+        };
+
+        services.xserver.displayManager.lightdm = {
+          enable = true;
+          background = "#000000";
+          # greeters.gtk.cursorTheme = {
+          #   name = "Posy_Cursor_Black";
+          #   package = pkgs.posy-cursors;
+          #   size = 72;
+          # };
+        };
+      }
 
       ../nixosModules/extra/layouts
-      ../nixosModules/extra/leana.nix
-
-      (import (sources.lix-module + "/module.nix") {lix = sources.lix;})
 
       #
       # home-manager
@@ -81,10 +89,24 @@ in
           #
           # home modules
           #
-          ./vanadium/home/misc.nix
+          ({nixosConfig, ...}: {
+            programs.kitty.enable = true;
+            programs.firefox.enable = true;
+            home.packages = with pkgs; [
+              dmenu
+            ];
 
-          ./vanadium/home/firefox.nix
+            xdg.configFile = {
-          ./vanadium/home/xmobar.nix
+              "xmonad".source = "${./vm/home/xmonad}";
+            };
+            home.pointerCursor = {
+              x11.enable = true;
+              gtk.enable = true;
+              name = "Posy_Cursor_Black";
+              package = pkgs.posy-cursors;
+              size = 72;
+            };
+          })
         ];
       }
 
@@ -93,5 +115,21 @@ in
         users.mutableUsers = false;
         me.password = "";
       }
+
+      {
+        # Me
+        programs.fish.enable = true;
+        nix.settings.trusted-users = ["leana"];
+        users.users."leana" = {
+          isNormalUser = true;
+          home = "/home/leana";
+          description = "Leana";
+          group = "leana";
+          extraGroups = ["wheel"];
+          shell = pkgs.fish;
+          openssh.authorizedKeys.keys = config.users.users.root.openssh.authorizedKeys.keys;
+        };
+        users.groups.leana = {};
+      }
     ];
   }

nix/configurations/vm/home/xmonad/xmonad.hs

@@ -0,0 +1,158 @@
+{-# LANGUAGE NegativeLiterals  #-}
+{-# LANGUAGE LambdaCase        #-}
+
+import XMonad
+
+import XMonad.Actions.SwapWorkspaces(swapWithCurrent)
+import XMonad.Actions.Submap        (submap)
+
+import XMonad.Util.EZConfig         (additionalKeys, removeKeys)
+import XMonad.Util.NamedScratchpad  (NamedScratchpad (NS),
+                                     customFloating,
+                                     namedScratchpadAction,
+                                     namedScratchpadManageHook, scratchpadWorkspaceTag)
+import XMonad.Util.SpawnOnce        (spawnOnce)
+
+import XMonad.Layout.NoBorders      (smartBorders)
+import XMonad.Layout.Reflect        (reflectHoriz)
+import XMonad.Layout.Spacing        (smartSpacingWithEdge)
+import XMonad.Layout.ResizableTile  (ResizableTall(ResizableTall), MirrorResize (MirrorShrink, MirrorExpand))
+
+import XMonad.Hooks.ManageHelpers   (isFullscreen, (~?), composeOne, (-?>))
+import XMonad.Hooks.FadeWindows     (fadeWindowsLogHook, opaque, isUnfocused, transparency, isFloating)
+import XMonad.Hooks.EwmhDesktops    (ewmh, ewmhFullscreen)
+import XMonad.Hooks.InsertPosition  (insertPosition, Focus(Newer, Older), Position(Below, Above))
+import XMonad.Hooks.RefocusLast     (refocusLastLogHook)
+import XMonad.Hooks.StatusBar       (StatusBarConfig, statusBarProp, dynamicEasySBs)
+import XMonad.Hooks.DynamicLog      (PP(ppHiddenNoWindows, ppCurrent, ppSep), xmobarColor, filterOutWsPP, wrap)
+
+import XMonad.Util.Hacks            (javaHack)
+
+import XMonad.StackSet              qualified as W
+
+
+import Data.Map.Strict              qualified as M
+import Graphics.X11.ExtraTypes.XF86
+import System.Posix.Env             (putEnv)
+import Data.Char                    (chr, ord, toUpper)
+import System.Exit (exitSuccess)
+
+
+-- Note: `xmonad --restart` will make Firefox's fullscreen work duck the xmobar stop working
+-- You need restart Firefox
+main :: IO ()
+main = do
+  xmonad
+       . javaHack
+       . dynamicEasySBs xmobar
+       . ewmhFullscreen . ewmh
+       $ def
+          { modMask            = superMask
+          , focusFollowsMouse  = True
+          , workspaces         = myWorkspaces
+          , terminal           = myTerm
+          , startupHook = do
+              spawn "xterm"
+
+          , layoutHook =
+              let tallr = reflectHoriz
+                          $ ResizableTall 1 (1/10) (3/7) []
+               in smartBorders
+                  ( smartSpacingWithEdge 5 tallr
+                    |||  Full
+                  )
+          }
+
+        -- Only remove mappings that needs pass through (it's a map).
+        `removeKeys`
+          [ (superMask, xK_h)
+          , (superMask, xK_l)
+          , (superMask, xK_p)
+
+            -- It has been more than once that I actidently killed xmonad >:(
+          , (superMask .|. shiftMask, xK_q)
+          ]
+          ++ [ (superMask              , n) | n <- [xK_1 .. xK_9] ]
+          ++ [ (superMask .|. shiftMask, n) | n <- [xK_1 .. xK_9] ]
+
+        `additionalKeys`
+          [
+          -- Toggle fullscreen
+            ((superMask, xK_Escape), sendMessage NextLayout)
+
+          -- Resize windows
+          , ((superMask, xK_equal               ), sendMessage $ IncMasterN  1)
+          , ((superMask, xK_minus               ), sendMessage $ IncMasterN -1)
+          , ((superMask, xK_comma               ), sendMessage Shrink         )
+          , ((superMask, xK_period              ), sendMessage Expand         )
+          , ((superMask .|. shiftMask, xK_comma ), sendMessage MirrorShrink   )
+          , ((superMask .|. shiftMask, xK_period), sendMessage MirrorExpand   )
+          ]
+
+          -- Yeet
+          ++ (let
+              workspaceKeys = [xK_h, xK_t, xK_n, xK_s, xK_m, xK_w, xK_v, xK_z]
+          in
+          [ ((superMask, k), windows $ W.greedyView space)
+          | (k, space) <- zip workspaceKeys myWorkspaces
+          ]
+          ++
+          [ ((superMask .|. altMask, k), windows $ W.greedyView space . W.shift space)
+          | (k, space) <- zip workspaceKeys myWorkspaces
+          ]
+          ++
+          [ ((superMask .|. controlMask, k), windows $ swapWithCurrent space)
+          | (k, space) <- zip workspaceKeys myWorkspaces
+          ])
+
+          -- Launcher
+          ++ (let
+              launchFirefox = "if type firefox; then firefox; else firefox-esr; fi"
+              launchDmenu = "dmenu_run -i -fn \"Iosevka Extended-17\" -nb \"#36363a\" -nf \"#e2e2e4\" -sb \"#f7f7f8\" -sf \"#36363a\" -l 10"
+              lock = "xscreensaver-command -lock"
+          in
+          [ ((controlMask .|. altMask, xK_b), spawn launchFirefox)
+          , ((superMask,               xK_o), spawn launchDmenu  )
+          , ((superMask,               xK_l), spawn lock         )
+          ])
+
+
+myTerm :: String
+myTerm = "kitty"
+
+superMask, altMask :: KeyMask
+superMask = mod4Mask
+altMask = mod1Mask
+
+myWorkspaces :: [String]
+myWorkspaces = map pure ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']
+
+xmobar :: ScreenId -> X StatusBarConfig
+xmobar = \case
+  0 -> pure $ statusBarProp "xmobar -x 0" (pure myPrettyPrinter)
+  1 -> pure $ statusBarProp "xmobar -x 1" (pure myPrettyPrinter)
+  _ -> mempty
+  where
+    myPrettyPrinter =
+      filterOutWsPP [scratchpadWorkspaceTag]
+      $ def
+          { ppCurrent         = xmobarColor "#000000" "#ffffff" . wrap " " " " . fmap toUpper
+          , ppHiddenNoWindows = xmobarColor "#9c9c9c" "" . const "⋅"
+          , ppSep             = " | "
+          }
+
+isFirefoxPIP :: Query Bool
+isFirefoxPIP =
+  className =? "firefox"
+    <&&> title =? "Picture-in-Picture"
+
+isFirefoxFullscreen :: Query Bool
+isFirefoxFullscreen =
+  className =? "firefox"
+    <&&> isFullscreen
+
+-- Firefox having multimedia content
+isFirefoxVideo :: Query Bool
+isFirefoxVideo =
+  className =? "firefox"
+    <&&> title ~? "YouTube"