diff --git a/flake.lock b/flake.lock
index 58af383..0482a43 100644
--- a/flake.lock
+++ b/flake.lock
@@ -53,24 +53,6 @@
         "type": "github"
       }
     },
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1694529238,
-        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "ipmihddtemp": {
       "inputs": {
         "nixpkgs": [
@@ -94,11 +76,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1708979614,
-        "narHash": "sha256-FWLWmYojIg6TeqxSnHkKpHu5SGnFP5um1uUjH+wRV6g=",
+        "lastModified": 1715542476,
+        "narHash": "sha256-FF593AtlzQqa8JpzrXyRws4CeKbc5W86o8tHt4nRfIg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b7ee09cf5614b02d289cd86fcfa6f24d4e078c2a",
+        "rev": "44072e24566c5bcc0b7aa9178a0104f4cfffab19",
         "type": "github"
       },
       "original": {
@@ -124,11 +106,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1708984720,
-        "narHash": "sha256-gJctErLbXx4QZBBbGp78PxtOOzsDaQ+yw1ylNQBuSUY=",
+        "lastModified": 1715534503,
+        "narHash": "sha256-5ZSVkFadZbFP1THataCaSf0JH2cAH3S29hU9rrxTEqk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "13aff9b34cc32e59d35c62ac9356e4a41198a538",
+        "rev": "2057814051972fa1453ddfb0d98badbea9b83c06",
         "type": "github"
       },
       "original": {
@@ -143,8 +125,7 @@
         "ipmihddtemp": "ipmihddtemp",
         "nixpkgs": "nixpkgs",
         "nixpkgs-unstable": "nixpkgs-unstable",
-        "simple-nixos-mailserver": "simple-nixos-mailserver",
-        "utils": "utils_2"
+        "simple-nixos-mailserver": "simple-nixos-mailserver"
       }
     },
     "simple-nixos-mailserver": {
@@ -175,21 +156,6 @@
         "type": "gitlab"
       }
     },
-    "systems": {
-      "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": 1605370193,
@@ -204,25 +170,6 @@
         "repo": "flake-utils",
         "type": "github"
       }
-    },
-    "utils_2": {
-      "inputs": {
-        "flake-utils": "flake-utils"
-      },
-      "locked": {
-        "lastModified": 1696281284,
-        "narHash": "sha256-xcmtTmoiiAOSk4abifbtqVZk0iwBcqJfg47iUbkwhcE=",
-        "owner": "gytis-ivaskevicius",
-        "repo": "flake-utils-plus",
-        "rev": "6cf1e312fb259693c4930d07ca3cbe1d07ef4a48",
-        "type": "github"
-      },
-      "original": {
-        "owner": "gytis-ivaskevicius",
-        "ref": "v1.4.0",
-        "repo": "flake-utils-plus",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index ef5839c..ca27da5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,6 @@
   inputs = {
     nixpkgs.url = "flake:nixpkgs/nixos-23.11";
     nixpkgs-unstable.url = "flake:nixpkgs/nixos-unstable";
-    utils.url = "github:gytis-ivaskevicius/flake-utils-plus/v1.4.0";
     simple-nixos-mailserver = {
       url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-23.11";
       inputs = {
@@ -20,46 +19,50 @@
     };
   };
 
-  outputs = inputs@{ self, utils, nixpkgs, nixpkgs-unstable, simple-nixos-mailserver, dogetipbot-telegram, ipmihddtemp }: utils.lib.mkFlake {
+  outputs = { self, nixpkgs, nixpkgs-unstable, simple-nixos-mailserver, dogetipbot-telegram, ipmihddtemp }: {
 
-    inherit self inputs;
-
-    channels.nixpkgs-unstable.config = { allowUnfree = true; };
-
-    supportedSystems = [ "x86_64-linux" ];
-
-    # Patch example
-
-    # channels.nixpkgs-unstable.patches = [
-    #   (nixpkgs-unstable.legacyPackages."x86_64-linux".fetchpatch {
-    #     name = "electron-cash.patch";
-    #     url = "https://github.com/NixOS/nixpkgs/pull/160607.patch";
-    #     sha256 = nixpkgs.lib.fakeHash;
-    #   })
-    # ];
-
-    hostDefaults.modules = [
-      nixpkgs.nixosModules.notDetected
-      {
-        nix.generateRegistryFromInputs = true;
-        nix.linkInputs = true;
-        nix.generateNixPathFromInputs = true;
-      }
-    ];
-
-    hosts.loutreos.modules = [
-      simple-nixos-mailserver.nixosModule
-      dogetipbot-telegram.nixosModule
-      ipmihddtemp.nixosModule
-      ./systems/LoutreOS/configuration.nix
-    ];
-
-    hosts.paul-fixe = {
-      channelName = "nixpkgs-unstable";
+    nixosConfigurations.paul-fixe = nixpkgs-unstable.lib.nixosSystem {
+      system = "x86_64-linux";
       modules = [
+        nixpkgs-unstable.nixosModules.notDetected
+        {
+          nixpkgs.config.allowUnfree = true;
+          nix = {
+            settings.experimental-features = [ "nix-command" "flakes" ];
+            registry = {
+              nixpkgs.to = {
+                type = "path";
+                path = nixpkgs-unstable.legacyPackages.x86_64-linux.path;
+              };
+            };
+          };
+        }
         ./systems/PC-Fixe/configuration.nix
       ];
     };
+
+    nixosConfigurations.loutreos = nixpkgs-unstable.lib.nixosSystem {
+      system = "x86_64-linux";
+      modules = [
+        nixpkgs-unstable.nixosModules.notDetected
+        simple-nixos-mailserver.nixosModule
+        dogetipbot-telegram.nixosModule
+        ipmihddtemp.nixosModule
+        {
+          nix = {
+            settings.experimental-features = [ "nix-command" "flakes" ];
+            registry = {
+              nixpkgs.to = {
+                type = "path";
+                path = nixpkgs.legacyPackages.x86_64-linux.path;
+              };
+            };
+          };
+        }
+        ./systems/LoutreOS/configuration.nix
+      ];
+    };
+
   };
 }