flake: no more utils

flake.lock

@@ -17,41 +17,7 @@
     },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs"
-        "utils": "utils"
-      }
-    },
-    "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": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
       }
     }
   },

flake.nix

@@ -1,32 +1,28 @@
 {
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs";
-    utils.url = "github:numtide/flake-utils";
   };
 
   outputs =
-    {
+    { self, nixpkgs }:
-      self,
-      nixpkgs,
-      utils,
-    }:
-    (utils.lib.eachDefaultSystem (
-      system:
     let
-        pkgs = import nixpkgs {
+      lib = nixpkgs.lib;
+      makePkgs =
+        system:
+        import nixpkgs {
           inherit system;
           overlays = [ self.overlays.default ];
         };
+      forAllSystems = f: lib.genAttrs lib.systems.flakeExposed (system: f (makePkgs system));
     in
     {
-        formatter = pkgs.nixfmt-rfc-style;
+      formatter = forAllSystems (pkgs: pkgs.nixfmt-rfc-style);
-        packages.default = pkgs.artemist-blog;
+      packages = forAllSystems (pkgs: {
-        devShells.default = pkgs.mkShell {
+        default = pkgs.artemist-blog;
-          buildInputs = pkgs.artemist-blog.buildInputs ++ (with pkgs; [ bundix ]);
+      });
-        };
+      devShells = forAllSystems (pkgs: {
-      }
+        default = pkgs.mkShell { buildInputs = pkgs.artemist-blog.buildInputs ++ (with pkgs; [ bundix ]); };
-    ))
+      });
-    // {
       overlays.default = final: prev: {
         artemist-blog =
           let