Various changes to config, see notes under the fold.

- Adds `mySSHKeys` via `inherit` from `system/sshKeys.nix` for easier setting of allowed SSH keys
  - Especially useful for self-built `x86_64-linux` NixOS ISO.
- Swap where user groups are set to `system/users.nix`
- Add `myOptions.isWSL` to identify if an environment is used in WSL or not.
  - Used for setting user groups between WSL and bare-metal.
  - Requires adding `myOptions` as module to WSL systems?
    - Need to investiage if this properly works on bare-metal machines
      - So likely needs tested in VM?
- Added `myOptions.isWSL` option to `nixos-wsl` for group setting reasons, see above.
- Fleshed out `nixosConfigurations.isoimage-pc` to make keep some tools handy for live environment.
  - Plus, gave ssh key access to `root` user on ISO.
  - Need to double check if `nixos` user needs keys too.
    - Is that user still even generated with current config? Need to test.
- Added `unnix_script` to `home-manager` environment's `home.packages`, so I can remove Nix Store paths from text input easily for ease of comparing against other builds.

chimchar-hold_for_flake.nix

@@ -91,11 +91,13 @@
             # Am I going to use "configuration.nix" in this next config?
             # Am I going to put it all into the flake itself?
             # Am I going to do something else?
-          ./system/chimchar/users.nix
           ./system/dotnet_os_codename-workaround.nix
             # Source of this fix file is
             # https://github.com/nazarewk-iac/nix-configs/blob/main/modules/ascii-workaround.nix
           ./system/nix_lix.nix
+            # Enable Nix fork "Lix" instead of default "Nix" version from
+            # upstream
+          ./system/users.nix
           lix-module.nixosModules.default
           home-manager.nixosModules.home-manager
           {

flake.nix

@@ -87,23 +87,48 @@
       system = "x86_64-linux";
       config.allowUnfree = true;
     };
+
+    inherit (import ./system/sshKeys.nix) mySSHKeys;
+    # inherit (import ./system/groups.nix) myWslGroups myHardwareGroups;
+
+    myOptions = { lib, ... }: {
+      options = {
+        isWSL = lib.mkOption {
+          default = false;
+          type = lib.types.bool;
+        };
+      };
+    };
+
   in
   {
+
     nixosConfigurations = {
       nixos-wsl = nixpkgs.lib.nixosSystem {
         system = "x86_64-linux";
         modules = [
+          myOptions
           ./system/nixos-wsl/configuration.nix
           ./system/dotnet_os_codename-workaround.nix
             # Source of this fix file is
             # https://github.com/nazarewk-iac/nix-configs/blob/main/modules/ascii-workaround.nix
           ./system/nix_lix.nix
+          ./system/users.nix
           nixos-wsl.nixosModules.wsl
           lix-module.nixosModules.default
           home-manager.nixosModules.home-manager
           {
             system.configurationRevision = self.shortRev or self.dirtyShortRev or "dirty";
 
+            isWSL = true;
+
+            users.users.whovian = {
+              # extraGroups = myWslGroups;
+                # See above "let" expression
+                # and/or look at "system/groups.nix"
+              openssh.authorizedKeys.keys = mySSHKeys;
+            };
+
             home-manager = {
               useGlobalPkgs = true;
               useUserPackages = true;
@@ -134,26 +159,65 @@
         ];
       };
 
-      isoimage = nixpkgs.lib.nixosSystem {
+      isoimage-pc = nixpkgs.lib.nixosSystem {
+        # How to build:
+        # $ nix build .#nixosConfigurations.isoimage-pc.config.system.build.isoImage
+        # TODO: Add to "packages.x86_64-linux" later?
+        # "packages.x86_64-linux.isoimage-pc = self.<iso_entry>"
         system = "x86_64-linux";
         modules = [
-          # ./configuration.nix
+          "${nixpkgs}/nixos/modules/installer/cd-dvd/installation-cd-graphical-gnome.nix"
           {
-            nix = {
+            environment.systemPackages = [
-              extraOptions = "
+              pkgs._7zz
+              pkgs.bat
+              pkgs.dhex
+              pkgs.fd
+              pkgs.file
+              pkgs.git
+              pkgs.lynx
+              pkgs.ncdu
+              pkgs.progress
+              pkgs.ripgrep
+              pkgs.sshfs
+              pkgs.wget
+              pkgs.xxd
+              pkgs.yq
+              xil.packages.x86_64-linux.xil
+            ];
+
+            nix.extraOptions = ''
                 experimental-features = nix-command flakes
-              ";
+              '';
-            };
+
             programs = {
+              nano.enable = true;
+              screen.enable = true;
               zsh = {
                 enable = true;
+                # Honestly unsure if I should be using `programs.zsh.envExtra` or
+                # `programs.zsh.localVariables` here.
+              /*
+                localVariables = {
+                  DISABLE_MAGIC_FUNCTIONS = true;
+                };
+              */
+                ohMyZsh = {
+                  enable = true;
+                  theme = "bira";
                 };
               };
+            };
+
             users = {
               defaultUserShell = pkgs.zsh;
+              users.root = {
+                shell = pkgs.zsh;
+                openssh.authorizedKeys.keys = mySSHKeys;
+                  # Check if needed for "nixos" ISO user.
+              };
             };
           }
-          "${nixpkgs}/nixos/modules/installer/cd-dvd/installation-cd-graphical-gnome.nix"
         ];
       };
 

home/pkgs_and_programs.nix

@@ -22,9 +22,14 @@ let
         patches = [ ./packages/new_rclone/patches/rclone_8ffe3e462cbf5688c37c54009db09d8dcb486860.diff ];
       }
     );
+    unnix_script = pkgs.writeShellApplication {
+      name = "unnix";
+      /* runtimeInputs = [ sed ]; */
+      text = '' sed -r 's@/nix/store/[0-9a-z]{32}-@/<<NIX>>/@g' '';
+        # Quick command to remove Nix Store paths from output. Original source:
+        # https://trofi.github.io/posts/247-NixOS-22.05-release.html
+    };
   };
-
-
 in
 {
   programs = {
@@ -126,6 +131,7 @@ in
     my_packages.sabretools
     my_packages.new_rclone
     my_packages.rom-properties
+    my_packages.unnix_script
     # my_packages.hactoolnet-bin
 
     agenix.packages.${system}.default

system/groups.nix

@@ -0,0 +1,23 @@
+{
+  myWslGroups = [
+    "wheel"
+      # Enable 'sudo' for the user.
+  ];
+
+  myHardwareGroups = [
+    "wheel"
+      # Enable 'sudo' for the user.
+    "networkmanager"
+      # Enable use of NetworkManager
+    "usb"
+      # This should enable access to usb devices.
+    "docker"
+      # Enable 'docker' for the user.
+  ];
+
+  users.groups = {
+    usb = {
+      # Placeholder to create group.
+    };
+  };
+}

system/nixos-wsl/configuration.nix

@@ -9,7 +9,7 @@
 {
   imports = [
     ./packages.nix
-    ./users.nix
+    # ./users.nix
     ./wsl.nix
   ];
 

system/sshKeys.nix

@@ -0,0 +1,5 @@
+{
+  mySSHKeys = [
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE5E4BLKTeFAeRdIMJbdi1ZcphWF3WnJAZ6FX6zbKHI3" # NixOS WSL
+  ];
+}

system/users.nix

@@ -0,0 +1,30 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}:
+{
+  users = {
+    users = {
+      whovian = {
+        name = "whovian";
+        description = "Whovian9369";
+        shell = pkgs.zsh;
+        initialPassword = "abcde"; # I need to log in somehow
+        extraGroups = [
+          "wheel"
+            # Enable 'sudo' for the user.
+        ] ++ lib.optionals (!config.isWSL) [
+        # These are the groups for baremetal machines, or possibly VMs.
+          "networkmanager"
+            # Enable use of NetworkManager
+          "usb"
+            # This should enable access to usb devices.
+          "docker"
+            # Enable 'docker' for the user.
+        ];
+      };
+    };
+  };
+}