diff --git a/configuration.nix b/configuration.nix
index 46c489a..6fa6d97 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -70,6 +70,7 @@
 		};
 	};
   };
+  services.autorandr.enable = true;
 
   #TODO sollte nur bestimmte packages sein nicht alle
   nixpkgs.config.allowUnfree = true;
@@ -167,7 +168,7 @@
   # Copy the NixOS configuration file and link it from the resulting system
   # (/run/current-system/configuration.nix). This is useful in case you
   # accidentally delete configuration.nix.
-  system.copySystemConfiguration = true;
+  # system.copySystemConfiguration = true;
 
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..dade9ea
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,64 @@
+{
+  "nodes": {
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "utils": "utils"
+      },
+      "locked": {
+        "lastModified": 1674556204,
+        "narHash": "sha256-HCRmkZsq01h2Evch08zpgE9jeHdMtGdT1okWotyvuhY=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "c59f0eac51da91c6989fd13a68e156f63c0e60b6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1674459583,
+        "narHash": "sha256-L0UZl/u2H3HGsrhN+by42c5kNYeKtdmJiPzIRvEVeiM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "1b1f50645af2a70dc93eae18bfd88d330bfbcf7f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "home-manager": "home-manager",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "utils": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..9e5659b
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,27 @@
+{
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  inputs.home-manager = {
+	url = "github:nix-community/home-manager";
+	# should use system nixpkgs instead of their own
+	inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = { self, nixpkgs, home-manager, ... }: let
+      system = "x86_64-linux";
+    in {nixosConfigurations.patricknix =
+		nixpkgs.lib.nixosSystem {
+			inherit system;
+      modules = [
+		./configuration.nix
+		home-manager.nixosModules.home-manager
+          {
+            home-manager.useGlobalPkgs = true;
+            home-manager.useUserPackages = true;
+		  }
+	  ];
+    };
+	pkgs = import nixpkgs {
+		inherit system;
+	};
+  };
+}
diff --git a/users/common/autorandr.nix b/users/common/autorandr.nix
index d594924..5b494ef 100644
--- a/users/common/autorandr.nix
+++ b/users/common/autorandr.nix
@@ -73,7 +73,7 @@
 				};
 				DP-1 = {
 					enable = true;
-					mode = "1920x1080";
+					mode = "2560x1440";
 					position = "0x0";
 					rate = "144";
 					gamma = "1";
diff --git a/users/default.nix b/users/default.nix
index 22f4dd0..1ac5e0c 100644
--- a/users/default.nix
+++ b/users/default.nix
@@ -1,13 +1,9 @@
 {
   config,
-  pkgs,
+  home-manager,
   ...
-}: let
-  home-manager = builtins.fetchTarball "https://github.com/nix-community/home-manager/archive/master.tar.gz";
-in {
-  imports = [
-    (import "${home-manager}/nixos")
-  ];
+}:
+{
   home-manager.users.patrick.imports = [./patrick.nix];
   home-manager.users.root = {
     imports = [./common];