Make use of flake-parts

flake.lock

@@ -75,6 +75,24 @@
         "type": "github"
       }
     },
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1719994518,
+        "narHash": "sha256-pQMhCCHyQGRzdfAkdJ4cIWiw+JNuWsTX7f0ZYSyz0VY=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "9227223f6d922fee3c7b190b2cc238a99527bbb7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "locked": {
         "lastModified": 1629284811,
@@ -186,6 +204,18 @@
         "type": "github"
       }
     },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1719876945,
+        "narHash": "sha256-Fm2rDDs86sHy0/1jxTOKB1118Q0O3Uc7EC0iXvXKpbI=",
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/5daf0514482af3f97abaefc78a6606365c9108e2.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/5daf0514482af3f97abaefc78a6606365c9108e2.tar.gz"
+      }
+    },
     "nixpkgs-stable": {
       "locked": {
         "lastModified": 1720282526,
@@ -207,6 +237,7 @@
         "betterfox": "betterfox",
         "disko": "disko",
         "firefox-addons": "firefox-addons",
+        "flake-parts": "flake-parts",
         "home-manager": "home-manager",
         "nix-index-database": "nix-index-database",
         "nix-vscode-extensions": "nix-vscode-extensions",

flake.nix

@@ -2,6 +2,8 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 
+    flake-parts.url = "github:hercules-ci/flake-parts";
+
     home-manager = {
       url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -50,34 +52,39 @@
   };
 
   outputs =
-    { self, nixpkgs, ... }@inputs:
-    let
-      system = "x86_64-linux";
-      pkgs = nixpkgs.legacyPackages.${system};
-    in
-    {
+    inputs:
+    inputs.flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [ "x86_64-linux" ];
+
+      flake = {
         nixosConfigurations = {
-        north = nixpkgs.lib.nixosSystem {
+          north = inputs.nixpkgs.lib.nixosSystem {
             specialArgs = {
-            inherit self inputs;
+              inherit (inputs) self;
+              inherit inputs;
             };
             modules = [
               ./hosts/north
-            "${self}/users/seb/@north"
+              "${inputs.self}/users/seb/@north"
             ];
           };
-        inspiron = nixpkgs.lib.nixosSystem {
+          inspiron = inputs.nixpkgs.lib.nixosSystem {
             specialArgs = {
-            inherit self inputs;
+              inherit (inputs) self;
+              inherit inputs;
             };
             modules = [
               ./hosts/inspiron
-            "${self}/users/seb/@inspiron"
+              "${inputs.self}/users/seb/@inspiron"
             ];
           };
         };
+      };
 
-      devShells.${system}.sops = pkgs.mkShell {
+      perSystem =
+        { pkgs, ... }:
+        {
+          devShells.sops = pkgs.mkShell {
             packages = [
               pkgs.sops
               pkgs.age
@@ -85,11 +92,12 @@
             ];
           };
 
-      formatter.${system} =
+          formatter =
             (inputs.treefmt-nix.lib.evalModule pkgs {
               projectRootFile = "flake.nix";
               programs.nixfmt.enable = true;
               programs.prettier.enable = true;
             }).config.build.wrapper;
         };
+    };
 }