added a simple iso.nix

modules/iso.nix

@@ -0,0 +1,41 @@
+{ config, pkgs, ... }:
+{
+  imports = [
+    <nixpkgs/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix>
+
+    # Provide an initial copy of the NixOS channel so that the user
+    # doesn't need to run "nix-channel --update" first.
+    <nixpkgs/nixos/modules/installer/cd-dvd/channel.nix>
+  ];
+
+  users.users.root.openssh.authorizedKeys.keys = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFyGaBZIZYjiBhOFD2drvG316B9NUVSbMpTIhOCQur8P arch" ];
+
+  users.defaultUserShell = pkgs.zsh;
+
+  time.timeZone = "Europe/Berlin";
+  i18n = {
+    defaultLocale = "en_GB.UTF-8";
+    extraLocaleSettings = {
+      LC_TIME = "de_DE.UTF-8";
+    };
+  };
+
+  programs = {
+    zsh = import ./zsh.nix;
+    vim.defaultEditor = true;
+  };
+
+  environment.systemPackages = with pkgs; [
+    dig
+    eza
+    git
+    htop
+    nmap
+    pv
+    rxvt-unicode-unwrapped.terminfo
+    screen
+    wget
+    (import ./vim.nix)
+  ];
+}
+# vim: set et ts=2 sw=2 ai: