add gitignore

.gitignore

@@ -0,0 +1 @@
+result/

builder.sh

@@ -0,0 +1,3 @@
+export PATH="$coreutils/bin"
+mkdir $out
+cp $src/*\.{png,webp} $out

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1719254875,
+        "narHash": "sha256-ECni+IkwXjusHsm9Sexdtq8weAq/yUyt1TWIemXt3Ko=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "2893f56de08021cffd9b6b6dfc70fd9ccd51eb60",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,28 @@
+{
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+
+  outputs =
+    { nixpkgs, ... }:
+    let
+      systems = [ "aarch64-linux" "x86_64-linux" ];
+      forAllSystems =
+        function:
+        nixpkgs.lib.genAttrs systems (
+          system: function nixpkgs.legacyPackages.${system} system
+        );
+    in
+    {
+      packages = forAllSystems (pkgs: system: rec {
+        default = backgrounds;
+        backgrounds = derivation
+          {
+            inherit system;
+            inherit (pkgs) coreutils;
+            name = "backgrounds";
+            builder = "${pkgs.bash}/bin/bash";
+            args = [ ./builder.sh ];
+            src = ./.;
+          };
+      });
+    };
+}