diff --git a/flake.lock b/flake.lock
index bcfe083..14755c7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -68,11 +68,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1732645828,
-        "narHash": "sha256-+4U2I2653JvPFxcux837ulwYS864QvEueIljUkwytsk=",
+        "lastModified": 1730135292,
+        "narHash": "sha256-QUU1P8x42b8moaUsxJkamfcRXdyNjIq79ZThzT3CVUA=",
         "owner": "nix-community",
         "repo": "disko",
-        "rev": "869ba3a87486289a4197b52a6c9e7222edf00b3e",
+        "rev": "0e55423bf8c241cf18676a8b8424c7eadd170ffc",
         "type": "github"
       },
       "original": {
@@ -83,17 +83,18 @@
     },
     "emacs": {
       "inputs": {
+        "flake-utils": "flake-utils",
         "nixpkgs": [
           "nixpkgs"
         ],
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1732724585,
-        "narHash": "sha256-pO5sNOYN1FHUw1/rUWamL+A3cktUG5ZOo3F3yMUCfMI=",
+        "lastModified": 1730132590,
+        "narHash": "sha256-5XCF16oq/NBmx/2cJ8mK1kv+kOKNULcNWP0MsgMraq8=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "96e0bac0682868c890d4d36168024853e8dee174",
+        "rev": "64c6af10947cd17201570726eba26046e95ed58b",
         "type": "github"
       },
       "original": {
@@ -134,6 +135,24 @@
         "type": "github"
       }
     },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1726560853,
+        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
@@ -183,11 +202,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1732482255,
-        "narHash": "sha256-GUffLwzawz5WRVfWaWCg78n/HrBJrOG7QadFY6rtV8A=",
+        "lastModified": 1730016908,
+        "narHash": "sha256-bFCxJco7d8IgmjfNExNz9knP8wvwbXU4s/d53KOK6U0=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "a9953635d7f34e7358d5189751110f87e3ac17da",
+        "rev": "e83414058edd339148dc142a8437edb9450574c8",
         "type": "github"
       },
       "original": {
@@ -268,11 +287,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1732521221,
-        "narHash": "sha256-2ThgXBUXAE1oFsVATK1ZX9IjPcS4nKFOAjhPNKuiMn0=",
+        "lastModified": 1729880355,
+        "narHash": "sha256-RP+OQ6koQQLX5nw0NmcDrzvGL8HDLnyXt/jHhL1jwjM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "4633a7c72337ea8fd23a4f2ba3972865e3ec685d",
+        "rev": "18536bf04cd71abd345f9579158841376fdd0c5a",
         "type": "github"
       },
       "original": {
@@ -331,11 +350,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1732632634,
-        "narHash": "sha256-+G7n/ZD635aN0sEXQLynU7pWMd3PKDM7yBIXvYmjABQ=",
+        "lastModified": 1729973466,
+        "narHash": "sha256-knnVBGfTCZlQgxY1SgH0vn2OyehH9ykfF8geZgS95bk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6f6076c37180ea3a916f84928cf3a714c5207a30",
+        "rev": "cd3e8833d70618c4eea8df06f95b364b016d4950",
         "type": "github"
       },
       "original": {
@@ -347,11 +366,11 @@
     },
     "nixpkgs-stable_2": {
       "locked": {
-        "lastModified": 1730741070,
-        "narHash": "sha256-edm8WG19kWozJ/GqyYx2VjW99EdhjKwbY3ZwdlPAAlo=",
+        "lastModified": 1720386169,
+        "narHash": "sha256-NGKVY4PjzwAa4upkGtAMz1npHGoRzWotlSnVlqI40mo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d063c1dd113c91ab27959ba540c0d9753409edf3",
+        "rev": "194846768975b7ad2c4988bdb82572c00222c0d7",
         "type": "github"
       },
       "original": {
@@ -434,11 +453,11 @@
         "nixpkgs-stable": "nixpkgs-stable_2"
       },
       "locked": {
-        "lastModified": 1732021966,
-        "narHash": "sha256-mnTbjpdqF0luOkou8ZFi2asa1N3AA2CchR/RqCNmsGE=",
+        "lastModified": 1729104314,
+        "narHash": "sha256-pZRZsq5oCdJt3upZIU4aslS9XwFJ+/nVtALHIciX/BI=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "3308484d1a443fc5bc92012435d79e80458fe43c",
+        "rev": "3c3e88f0f544d6bb54329832616af7eb971b6be6",
         "type": "github"
       },
       "original": {
@@ -497,6 +516,21 @@
         "type": "github"
       }
     },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "utils": {
       "locked": {
         "lastModified": 1659877975,
diff --git a/hosts/igor/default.nix b/hosts/igor/default.nix
index 31ab701..02d17e9 100644
--- a/hosts/igor/default.nix
+++ b/hosts/igor/default.nix
@@ -1,8 +1,4 @@
-{
-  inputs,
-  pkgs,
-  ...
-}:
+{ config, inputs, lib, pkgs, ... }:
 
 {
   imports = [
@@ -16,61 +12,54 @@
     ./disko-config.nix
   ];
 
-  config.networking =
-    let
-      extIface = "ens3";
-    in
-    {
-      hostName = "igor";
-      domain = "failco.de";
-      wireless.enable = false;
-      useDHCP = false;
-      enableIPv6 = false;
-      interfaces.${extIface} = {
-        ipv4.addresses = [
-          {
-            address = "192.168.0.2";
-            prefixLength = 24;
-          }
-        ];
-      };
-      defaultGateway = "192.168.0.1";
-      nameservers = [
-        "192.168.0.1"
-        "1.1.1.1"
-        "8.8.8.8"
-      ];
-
-      firewall.enable = true;
+  networking = let extIface = "ens3";
+  in {
+    hostName = "igor";
+    domain = "failco.de";
+    wireless.enable = false;
+    useDHCP = false;
+    enableIPv6 = false;
+    interfaces.${extIface} = {
+      ipv4.addresses = [{
+        address = "192.168.0.2";
+        prefixLength = 24;
+      }];
     };
+    defaultGateway = "192.168.0.1";
+    nameservers = [ "1.1.1.1" "8.8.8.8" ];
+    firewall = {
+      allowedTCPPorts = [ 22 80 443 ];
+      allowedUDPPorts = [ ];
+    };
+  };
 
-  config.security.sudo = {
+  security.sudo = {
     enable = true;
     execWheelOnly = true;
   };
 
   # Select internationalization properties.
-  config.i18n.defaultLocale = "en_US.UTF-8";
-  config.console = {
+  i18n.defaultLocale = "en_US.UTF-8";
+  console = {
     font = "Lat2-Terminus16";
     keyMap = "dvorak";
   };
 
   # Define a user account. Don't forget to set a password with ‘passwd’.
-  config.users.users.alex = {
+  users.users.me = {
     isNormalUser = true;
     extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
     shell = pkgs.zsh;
   };
 
-  config.programs.neovim = {
+  programs.neovim = {
     enable = true;
     defaultEditor = true;
     viAlias = true;
     vimAlias = true;
   };
 
-  config.programs.zsh.enable = true;
+  programs.zsh.enable = true;
 
-  config.system.stateVersion = "24.05";
+  system.stateVersion = "23.11";
 }