init

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1752687322,
+        "narHash": "sha256-RKwfXA4OZROjBTQAl9WOZQFm7L8Bo93FQwSJpAiSRvo=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "6e987485eb2c77e5dcc5af4e3c70843711ef9251",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,24 @@
+{
+  description = "A very basic flake";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+  };
+
+  outputs = { self, nixpkgs }:
+  let pkgs = nixpkgs.legacyPackages.x86_64-linux; in
+  {
+    packages.x86_64-linux.default = pkgs.callPackage (
+      {
+        dockerTools
+      }:
+      dockerTools.buildImage {
+        name = "nix-remote-builder";
+        tag = "latest";
+        config = {
+          Cmd = [ "${pkgs.fastfetch}" ];
+        };
+      }
+    ) {};
+  };
+}

result

@@ -0,0 +1 @@
+/nix/store/b6dnrw0lx8l8q1r163axba4wg83bwbsw-docker-image-nix-remote-builder.tar.gz