nix flake update

flake.lock

@@ -2,7 +2,9 @@
   "nodes": {
     "flake-parts": {
       "inputs": {
-        "nixpkgs-lib": "nixpkgs-lib"
+        "nixpkgs-lib": [
+          "nixpkgs"
+        ]
       },
       "locked": {
         "lastModified": 1701473968,
@@ -20,11 +22,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1702312524,
-        "narHash": "sha256-gkZJRDBUCpTPBvQk25G0B7vfbpEYM5s5OZqghkjZsnE=",
+        "lastModified": 1703637592,
+        "narHash": "sha256-8MXjxU0RfFfzl57Zy3OfXCITS0qWDNLzlBAdwxGZwfY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a9bf124c46ef298113270b1f84a164865987a91c",
+        "rev": "cfc3698c31b1fb9cdcf10f36c9643460264d0ca8",
         "type": "github"
       },
       "original": {
@@ -34,28 +36,26 @@
         "type": "github"
       }
     },
-    "nixpkgs-lib": {
-      "locked": {
-        "dir": "lib",
-        "lastModified": 1701253981,
-        "narHash": "sha256-ztaDIyZ7HrTAfEEUt9AtTDNoCYxUdSd6NrRHaYOIxtk=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "e92039b55bcd58469325ded85d4f58dd5a4eaf58",
-        "type": "github"
-      },
-      "original": {
-        "dir": "lib",
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "flake-parts": "flake-parts",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "systems": "systems"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
       }
     }
   },

flake.nix

@@ -1,22 +1,38 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    flake-parts.url = "github:hercules-ci/flake-parts";
+    nixpkgs = {
+      url = "github:NixOS/nixpkgs/nixos-unstable";
+    };
+    flake-parts = {
+      url = "github:hercules-ci/flake-parts";
+      inputs.nixpkgs-lib.follows = "nixpkgs";
+    };
+    systems = {
+      url = "github:nix-systems/default";
+    };
   };
 
-  outputs = inputs@{ nixpkgs, flake-parts, ... }:
-    flake-parts.lib.mkFlake { inherit inputs; } {
-      systems = [ "x86_64-linux" "aarch64-linux" ];
+  outputs = inputs @ {
+    nixpkgs,
+    flake-parts,
+    ...
+  }:
+    flake-parts.lib.mkFlake {inherit inputs;} {
+      systems = import inputs.systems;
 
-      perSystem = { pkgs, system, ... }: {
-        devShells.default = pkgs.mkShell { packages = with pkgs; [ marp-cli ]; };
+      perSystem = {
+        pkgs,
+        system,
+        ...
+      }: {
+        devShells.default = pkgs.mkShell {packages = with pkgs; [marp-cli];};
 
         packages.slides = pkgs.stdenvNoCC.mkDerivation {
           name = "slides";
 
           src = ./.;
           dontUnpack = true;
-          buildInputs = with pkgs; [ marp-cli ];
+          buildInputs = with pkgs; [marp-cli];
 
           buildPhase = ''
             marp --html $src/slides.md --allow-local-files -o slides.html
@@ -31,4 +47,3 @@
       };
     };
 }
-