Relocated & split up darwin & nixos modules

I broke out host specific bits from the configuration that should be
common to all hosts of a given type.

modules/hosts/nixos/rainbow-planet/default.nix

@@ -0,0 +1,110 @@
+{ config, pkgs, ... }: let
+  username = "gene";
+  hostname = "rainbow-planet";
+in {
+  imports = [
+    ./hardware-configuration.nix
+  ];
+
+  system.stateVersion = "23.05";
+
+  boot.loader = {
+    efi.canTouchEfiVariables = true;
+    systemd-boot= {
+      enable = true;
+      consoleMode = "1";
+    };
+  };
+
+  environment.systemPackages = with pkgs; [
+    # host specific apps
+    boinc
+    brightnessctl
+    gnome.nautilus
+    pavucontrol
+    polkit-kde-agent
+    ulauncher
+    whalebird
+    wmctrl
+
+    # common gui apps that really should be in another file
+    firefox
+    libreoffice
+    meld
+    slack
+    tilix
+    vivaldi
+    xfce.xfce4-terminal
+    zoom-us
+  ];
+
+  networking = {
+    hostName = "${hostname}";
+    networkmanager.enable = true;
+  };
+
+  nix.settings.allowed-users = [ "${username}" ];
+
+  programs = {
+    _1password.enable = true;
+    _1password-gui = {
+      enable = true;
+      # Certain features, including CLI integration and system authentication support,
+      # require enabling PolKit integration on some desktop environments (e.g. Plasma).
+      polkitPolicyOwners = [ "${username}" ];
+    };
+    hyprland.enable = true;
+
+    # common programs that really should be in another file
+    # required for setting to be picked up by xfce4-terminal
+    xfconf.enable = true;
+  };
+
+  services = {
+    boinc.enable = true;
+    gnome.gnome-keyring.enable = true; # Provides secret storage
+    gvfs.enable = true; # Used by Nautilus
+    printing.enable = true; # Enable CUPS
+    tailscale = {
+      extraUpFlags = [
+        "--ssh"
+      ];
+    };
+    xserver = {
+      enable = true;    # Enable the X11 windowing system.
+
+      # Configure keymap in X11
+      layout = "us";
+      xkbVariant = "";
+
+      displayManager = {
+        gdm = {
+          enable = true;
+          wayland = true;
+        };
+      };
+    };
+  };
+
+  # Enable sound with pipewire.
+  sound.enable = true;
+  hardware.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    wireplumber.enable = true;
+  };
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.${username} = {
+    isNormalUser = true;
+    description = "Gene Liverman";
+    extraGroups = [ "networkmanager" "wheel" "dialout" "input" ];
+    packages = with pkgs; [
+     tailscale-systray
+    ];
+  };
+}