diff --git a/hosts/sakotop/configuration.nix b/hosts/sakotop/configuration.nix
index 1efc57b4..d0970e1b 100644
--- a/hosts/sakotop/configuration.nix
+++ b/hosts/sakotop/configuration.nix
@@ -1,12 +1,17 @@
 # Edit this configuration file to define what should be installed on
 # your system.  Help is available in the configuration.nix(5) man page and in the NixOS manual (accessible by running `nixos-help`).
-
-{ config, pkgs, lib, inputs, outputs, ... }:
 {
-  imports =
-    [ # Include the results of the hardware scan.
-      ./hardware-configuration.nix
-    ];
+  config,
+  pkgs,
+  lib,
+  inputs,
+  outputs,
+  ...
+}: {
+  imports = [
+    # Include the results of the hardware scan.
+    ./hardware-configuration.nix
+  ];
 
   # required for hostname specific configurations
   networking.hostName = "sakotop"; # Define your hostname.
@@ -18,7 +23,7 @@
       awesome.enable = false;
       dwm.enable = true;
       picom.enable = false;
-      gnome.enable =  false;
+      gnome.enable = false;
       dunst.enable = true;
       browsers = {
         qutebrowser.enable = true;
@@ -72,7 +77,7 @@
         # makes nix search nixpkgs <example>
         # ALOT faster
         search.enable = true;
-        # optimize store 
+        # optimize store
         optimize.enable = true;
       };
       zsh.enable = true;
@@ -91,12 +96,12 @@
 
   # TODO(sako):: put this in different files
   # Define a user account. Don't forget to set a password with ‘passwd’.
-  users.users.sako= {
+  users.users.sako = {
     isNormalUser = true;
-    extraGroups = [ "wheel" "networkmanager" ]; # Enable ‘sudo’ for the user.
+    extraGroups = ["wheel" "networkmanager"]; # Enable ‘sudo’ for the user.
   };
 
-    services.xserver.videoDrivers = [ "nvidia" ];
+  services.xserver.videoDrivers = ["nvidia"];
 
   # Enable the OpenSSH daemon.
   # services.openssh.enable = true;
@@ -106,6 +111,4 @@
   # networking.firewall.allowedUDPPorts = [ ... ];
   # Or disable the firewall altogether.
   # networking.firewall.enable = false;
-
 }
-
diff --git a/modules/desktop/bspwm/default.nix b/modules/desktop/bspwm/default.nix
index f9912bd9..c042abaf 100644
--- a/modules/desktop/bspwm/default.nix
+++ b/modules/desktop/bspwm/default.nix
@@ -1,9 +1,14 @@
-{ outputs, options, config, lib, pkgs, ...}:
-with lib;
-let
-  cfg = config.modules.desktop.bspwm;
-in
 {
+  outputs,
+  options,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.modules.desktop.bspwm;
+in {
   imports = [
     ./polybar
     ./lemonbar
@@ -19,19 +24,18 @@ in
         bspwm.enable = true;
       };
       displayManager = {
-       defaultSession = "none+bspwm"; 
-       lightdm = {
-        enable = true;
-        background = ../../../config/bspwm/background.png;
-        greeters.gtk = {
+        defaultSession = "none+bspwm";
+        lightdm = {
           enable = true;
-          theme = {
-            name = "vimix-dark-ruby";
-            package = pkgs.vimix-gtk-themes;
+          background = ../../../config/bspwm/background.png;
+          greeters.gtk = {
+            enable = true;
+            theme = {
+              name = "vimix-dark-ruby";
+              package = pkgs.vimix-gtk-themes;
+            };
           };
         };
-
-       };
       };
       libinput = {
         enable = true;
@@ -46,7 +50,7 @@ in
           accelProfile = "flat";
         };
       };
-    };  
+    };
     users.users.sako.packages = with pkgs; [
       rofi
       # network
@@ -62,9 +66,9 @@ in
       flameshot
     ];
 
-    home-manager.users.sako = { pkgs , ...}: {
+    home-manager.users.sako = {pkgs, ...}: {
       home.pointerCursor = {
-        name = "Catppuccin-Mocha-Dark"; 
+        name = "Catppuccin-Mocha-Dark";
         size = 16;
         x11 = {
           enable = true;
@@ -89,7 +93,7 @@ in
         sxhkd = {
           source = ../../../config/sxhkd;
         };
-     }; 
+      };
     };
   };
 }
diff --git a/modules/desktop/dwm/default.nix b/modules/desktop/dwm/default.nix
index 6c893939..668840d1 100644
--- a/modules/desktop/dwm/default.nix
+++ b/modules/desktop/dwm/default.nix
@@ -1,9 +1,14 @@
-{ outputs, options, config, lib, pkgs, ...}:
-with lib;
-let
-  cfg = config.modules.desktop.dwm;
-in
 {
+  outputs,
+  options,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.modules.desktop.dwm;
+in {
   options.modules.desktop.dwm = {
     enable = mkEnableOption false;
   };
@@ -27,16 +32,16 @@ in
           };
         };
       };
-    libinput = {
-      mouse = {
-        accelProfile = "flat";
-      };
+      libinput = {
+        mouse = {
+          accelProfile = "flat";
+        };
 
-      touchpad = {
-        accelProfile = "flat";
+        touchpad = {
+          accelProfile = "flat";
+        };
       };
     };
-   };
     users.users.sako.packages = with pkgs; [
       rofi
       # network
@@ -51,7 +56,7 @@ in
       # screen shot (s)
       flameshot
     ];
-    home-manager.users.sako = { pkgs , ...}: {
+    home-manager.users.sako = {pkgs, ...}: {
       home.file = {
         "background.png" = {
           enable = true;
@@ -64,7 +69,7 @@ in
         };
       };
       home.pointerCursor = {
-        name = "Catppuccin-Mocha-Dark"; 
+        name = "Catppuccin-Mocha-Dark";
         size = 16;
         x11 = {
           enable = true;
diff --git a/modules/desktop/xmonad/default.nix b/modules/desktop/xmonad/default.nix
index a2447f19..3be789c4 100644
--- a/modules/desktop/xmonad/default.nix
+++ b/modules/desktop/xmonad/default.nix
@@ -1,25 +1,30 @@
-{ outputs, options, config, lib, pkgs, ...}:
-with lib;
-let
-  cfg = config.modules.desktop.xmonad;
-in
 {
+  outputs,
+  options,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.modules.desktop.xmonad;
+in {
   options.modules.desktop.xmonad = {
     enable = mkEnableOption false;
   };
 
   config = mkIf cfg.enable {
-  # https://nixos.wiki/wiki/XMonad
+    # https://nixos.wiki/wiki/XMonad
     services.xserver = {
       enable = true;
       windowManager.xmonad = {
         enable = true;
         enableContribAndExtras = true;
-         ghcArgs = [
-              "-hidir /tmp" # place interface files in /tmp, otherwise ghc tries to write them to the nix store
-              "-odir /tmp" # place object files in /tmp, otherwise ghc tries to write them to the nix store
-#              "-i${xmonad-contexts}" # tell ghc to search in the respective nix store path for the module
-         ];
+        ghcArgs = [
+          "-hidir /tmp" # place interface files in /tmp, otherwise ghc tries to write them to the nix store
+          "-odir /tmp" # place object files in /tmp, otherwise ghc tries to write them to the nix store
+          #              "-i${xmonad-contexts}" # tell ghc to search in the respective nix store path for the module
+        ];
       };
       displayManager = {
         lightdm = {
@@ -42,7 +47,7 @@ in
           accelProfile = "flat";
         };
 
-        # touchpad 
+        # touchpad
         touchpad = {
           accelProfile = "flat";
         };
@@ -71,9 +76,9 @@ in
       trayer
     ];
 
-    home-manager.users.sako = { pkgs , ...}: {
+    home-manager.users.sako = {pkgs, ...}: {
       home.pointerCursor = {
-        name = "Catppuccin-Mocha-Dark"; 
+        name = "Catppuccin-Mocha-Dark";
         size = 16;
         x11 = {
           enable = true;
@@ -100,7 +105,7 @@ in
           source = ../../../config/xmobar;
           recursive = true;
         };
-     }; 
-    };
+      };
     };
+  };
 }
diff --git a/packages/.nixd.json b/packages/.nixd.json
new file mode 100644
index 00000000..dd149e4b
--- /dev/null
+++ b/packages/.nixd.json
@@ -0,0 +1,7 @@
+{
+  "eval": {
+    "target": {
+      "args": ["--expr", "with import <nixpkgs> { }; ./default.nix { }"]
+    }
+  }
+}
diff --git a/packages/default.nix b/packages/default.nix
index 0a2be808..2aa2711e 100644
--- a/packages/default.nix
+++ b/packages/default.nix
@@ -1,7 +1,7 @@
 # Custom packages, that can be defined similarly to ones from nixpkgs
 # You can build them using 'nix build .#example' or (legacy) 'nix-build -A example'
-
-{ pkgs ? (import ../nixpkgs.nix) { } }: {
+{pkgs ? (import ../nixpkgs.nix) {}}: {
   # example = pkgs.callPackage ./example { };
   sako.davinci-resolve = pkgs.callPackage ./davinci-resolve.nix {};
+  nullpomino = pkgs.callPackage ./nullpomino.nix {};
 }