First try of a slightly cleaner version.

flake.lock

@@ -83,23 +83,6 @@
         "type": "github"
       }
     },
-    "my_packages": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1715061149,
-        "narHash": "sha256-ZM13/Z/7W9POKVIoMIJzRRzKY8v9oMD1nhLdXej0pFY=",
-        "path": "/home/whovian/.flakes",
-        "type": "path"
-      },
-      "original": {
-        "path": "/home/whovian/.flakes",
-        "type": "path"
-      }
-    },
     "nix-index-database": {
       "inputs": {
         "nixpkgs": [
@@ -181,7 +164,6 @@
         "agenix": "agenix",
         "flake-utils": "flake-utils",
         "home-manager": "home-manager",
-        "my_packages": "my_packages",
         "nix-index-database": "nix-index-database",
         "nix-systems_default": "nix-systems_default",
         "nixos-wsl": "nixos-wsl",

flake.nix

@@ -31,11 +31,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    my_packages = {
-      url = "/home/whovian/.flakes";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
     xil = {
       url = "github:Qyriad/Xil";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -71,13 +66,13 @@
     # Needed
     self, nixpkgs, nixos-wsl,
     # Added by me
-    agenix, home-manager, my_packages, nix-index-database, xil, ... }:
+    agenix, home-manager, nix-index-database, xil, ... }:
   {
     nixosConfigurations = {
       nixos-wsl = nixpkgs.lib.nixosSystem {
         system = "x86_64-linux";
         modules = [
-          ./system/configuration.nix
+          ./system/nixos-wsl/configuration.nix
           nixos-wsl.nixosModules.wsl
           home-manager.nixosModules.home-manager
           {
@@ -87,21 +82,23 @@
               useGlobalPkgs = true;
               useUserPackages = true;
               sharedModules = [
-                ./home/home.nix
                 agenix.homeManagerModules.default
                 nix-index-database.hmModules.nix-index
               ];
 
-              users.whovian.home.packages = [
+              users.whovian = ./home/home.nix;
-                agenix.packages.x86_64-linux.default
-              ];
 
               # Optionally, use home-manager.extraSpecialArgs to pass arguments to home.nix
               extraSpecialArgs = {
                 system = "x86_64-linux";
-                inherit my_packages;
                 inherit xil;
-                my_pkgs = my_packages.packages.x86_64-linux;
+                inherit nixpkgs;
+                pkgs = import nixpkgs {
+                  system = "x86_64-linux";
+                };
+                inherit agenix;
+                # inherit my_packages;
+                # my_pkgs = my_packages.packages.x86_64-linux;
               };
             };
           }

home/aliases.nix

@@ -0,0 +1,16 @@
+{
+  home.shellAliases = {
+  # From Windows "%PATH%"
+    "adb" = "adb.exe";
+    "caja" = "explorer.exe";
+    "hactoolnet" = "hactoolnet.exe";
+    "mpv" = "mpv.com";
+    "tailscale" = "tailscale.exe";
+    "yt-dlp" = "yt-dlp.exe";
+    "7zexe" = "/mnt/c/Program\\ Files/7-Zip/7z.exe";
+
+  # From Nix environment
+    "7z" = "7zz";
+      # "7zz" is from "nixpkgs#_7zz"
+  };
+}

home/dotfiles.nix

@@ -0,0 +1,37 @@
+{
+  home.file = {
+    /*
+      # Building this configuration will create a copy of 'dotfiles/screenrc' in
+      # the Nix store. Activating the configuration will then make '~/.screenrc' a
+      # symlink to the Nix store copy.
+      ".screenrc".source = dotfiles/screenrc;
+
+      # You can also set the file content immediately.
+      ".gradle/gradle.properties".text = ''
+       org.gradle.console=verbose
+       org.gradle.daemon.idletimeout=3600000
+      '';
+    */
+
+    ".zshrc".text = ''
+      eval "$(direnv hook zsh)"
+
+      download_nixpkgs_cache_index () {
+        filename="index-$(uname -m | sed 's/^arm64$/aarch64/')-$(uname | tr A-Z a-z)"
+        mkdir -p ~/.cache/nix-index && cd ~/.cache/nix-index
+        # -N will only download a new version if there is an update.
+        wget -q -N https://github.com/Mic92/nix-index-database/releases/latest/download/$filename
+        ln -f $filename files
+      }
+    '';
+
+    ".lftp/rc".text = ''
+      alias s32 "mirror -c --use-pget-n=32"
+      alias p32 "pget -n 32 -c"
+      alias p16 "pget -n 16 -c"
+      alias s16 "mirror -c --use-pget-n=16"
+      alias p8 "pget -n 8 -c"
+      alias ssl "set ssl:verify-certificate false"
+    '';
+  };
+}

home/home.nix

@@ -1,94 +1,55 @@
 {
+  lib,
+  agenix,
   config,
+  modulesPath,
+  nixosConfig,
+  nixpkgs,
+  options,
+  osConfig,
   pkgs,
-  my_pkgs,
+  specialArgs,
-  xil,
   system,
-  ...
+  xil
 }:
-
 {
-  # Home Manager needs a bit of information about you and the paths it should
+  imports = [
-  # manage.
+    ./pkgs_and_programs.nix # home.packages and programs
-  home.username = "whovian";
+    ./dotfiles.nix # home.file
-  home.homeDirectory = "/home/whovian";
+    ./variables.nix # home.sessionVariables
+    ./aliases.nix # home.shellAliases
+  ];
 
-  /*
+  home = {
-  This value determines the Home Manager release that your configuration is
+    # Home Manager needs a bit of information about you and the paths it should
-  compatible with. This helps avoid breakage when a new Home Manager release
+    # manage.
-  introduces backwards incompatible changes.
+    username = "whovian";
+    homeDirectory = "/home/whovian";
 
-  You should not change this value, even if you update Home Manager. If you do
+    /*
-  want to update the value, then make sure to first check the Home Manager
+    This value determines the Home Manager release that your configuration is
-  release notes.
+    compatible with. This helps avoid breakage when a new Home Manager release
-  */
+    introduces backwards incompatible changes.
-  home.stateVersion = "23.05"; # Please read the comment before changing.
     
-  # The home.packages option allows you to install Nix packages into your
+    You should not change this value, even if you update Home Manager. If you do
-  # environment.
+    want to update the value, then make sure to first check the Home Manager
-  nixpkgs = {
+    release notes.
-    config = {
+    */
-      allowUnfree = true;
+    stateVersion = "23.05"; # Please read the comment before changing.
-    };
+
+    # The home.packages option allows you to install Nix packages into your
+    # environment.
+
+    # Let Home Manager install and manage itself.
+    # Probably not needed for a module?
+    # programs.home-manager.enable = true;
   };
 
-  home.packages = [
+  # nixpkgs = {
-    pkgs._7zz
+  #   config = {
-    pkgs.bat
+  #     allowUnfree = true;
-    pkgs.binwalk
+  #   };
-    pkgs.cdecrypt
+  # };
-    pkgs.colorized-logs
-    pkgs.croc
-    pkgs.dhex
-    pkgs.fd
-    pkgs.file
-    pkgs.gdrive3
-    pkgs.git
-    pkgs.hactool
-    pkgs.instaloader
-    pkgs.internetarchive
-    pkgs.lynx
-    pkgs.megatools
-    pkgs.ncdu
-    pkgs.nixfmt-classic
-    pkgs.progress
-    pkgs.pyrosimple
-    pkgs.python3
-    pkgs.quickbms
-    pkgs.rclone
-    pkgs.screen
-    pkgs.sshfs
-    pkgs.unrar-wrapper
-    pkgs.wget
-    pkgs.xxd
-    pkgs.yq
-
-    # my_pkgs.irdkit
-    my_pkgs.ird_tools
-    my_pkgs.rom-properties
-
-    xil.packages.${system}.xil
-   ];
-
-  /*
-    Disabled
-      pkgs.binutils
-        # Instead just do `nix shell nixpkgs#binutils -c strings -- INPUT.ext > INPUT.ext.strings
-      pkgs.mpv
-      pkgs.terminator
-      pkgs.yt-dlp
-      pkgs.p7zip
-        # Replaced in favour of nixpkgs#_7zz
-    Disabled
-  */
-
-  /*
-    # It is sometimes useful to fine-tune packages, for example, by applying
-    # overrides. You can do that directly here, just don't forget the
-    # parentheses. Maybe you want to install Nerd Fonts with a limited number of
-    # fonts?
-    (pkgs.nerdfonts.override { fonts = [ "FantasqueSansMono" ]; })
-  */
 
   age = {
     identityPaths = [
@@ -106,112 +67,4 @@
       };
     };
   };
-
-  programs = {
-    bat = {
-      enable = true;
-    };
-    direnv = {
-      enable = true;
-      enableBashIntegration = true;
-      enableZshIntegration = true;
-      nix-direnv.enable = true;
-    };
-    git = {
-      enable = true;
-      userName = "Whovian9369";
-      userEmail = "Whovian9369@gmail.com";
-      extraConfig = {
-        init = {
-          defaultBranch = "main";
-        };
-      };
-    };
-    jq = {
-      enable = true;
-    };
-    nix-index = {
-      enable = true;
-      enableZshIntegration = false;
-    };
-    ripgrep = {
-      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;
-      };
-      # enableAutosuggestions = true;
-      # enableCompletion = true;
-      oh-my-zsh = {
-        enable = true;
-        plugins = [
-          "git"
-          "sudo"
-        ];
-        theme = "bira";
-      };
-    };
-  };
-
-  home.file = {
-    /*
-      # Building this configuration will create a copy of 'dotfiles/screenrc' in
-      # the Nix store. Activating the configuration will then make '~/.screenrc' a
-      # symlink to the Nix store copy.
-      ".screenrc".source = dotfiles/screenrc;
-
-      # You can also set the file content immediately.
-      ".gradle/gradle.properties".text = ''
-       org.gradle.console=verbose
-       org.gradle.daemon.idletimeout=3600000
-      '';
-    */
-
-    ".zshrc".text = ''
-      eval "$(direnv hook zsh)"
-
-      download_nixpkgs_cache_index () {
-        filename="index-$(uname -m | sed 's/^arm64$/aarch64/')-$(uname | tr A-Z a-z)"
-        mkdir -p ~/.cache/nix-index && cd ~/.cache/nix-index
-        # -N will only download a new version if there is an update.
-        wget -q -N https://github.com/Mic92/nix-index-database/releases/latest/download/$filename
-        ln -f $filename files
-      }
-    '';
-
-    ".lftp/rc".text = ''
-      alias s32 "mirror -c --use-pget-n=32"
-      alias p32 "pget -n 32 -c"
-      alias p16 "pget -n 16 -c"
-      alias s16 "mirror -c --use-pget-n=16"
-      alias p8 "pget -n 8 -c"
-      alias ssl "set ssl:verify-certificate false"
-    '';
-  };
-
-  home.sessionVariables = {
-    EDITOR = "nano";
-    DOTNET_CLI_TELEMETRY_OPTOUT = "1";
-    OPENAI_API_KEY = "\$(cat ${config.age.secrets."openai".path})";
-    CURSEFORGE_API_KEY = "\$(cat ${config.age.secrets."cursed".path})";
-    ITCHIO_API_KEY = "\$(cat ${config.age.secrets."itchy".path})";
-  };
-
-  home.shellAliases = {
-    "adb" = "adb.exe";
-    "caja" = "explorer.exe";
-    "hactoolnet" = "hactoolnet.exe";
-    "mpv" = "mpv.com";
-    "tailscale" = "tailscale.exe";
-    "yt-dlp" = "yt-dlp.exe";
-    "7zexe" = "/mnt/c/Program\\ Files/7-Zip/7z.exe";
-    "7z" = "7zz";
-  };
-
-  # Let Home Manager install and manage itself.
-  programs.home-manager.enable = true;
 }

home/pkgs_and_programs.nix

@@ -0,0 +1,117 @@
+{
+  agenix,
+  pkgs,
+  system,
+  xil,
+  ...
+}:
+{
+  programs = {
+    bat = {
+      enable = true;
+    };
+    direnv = {
+      enable = true;
+      enableBashIntegration = true;
+      enableZshIntegration = true;
+      nix-direnv.enable = true;
+    };
+    git = {
+      enable = true;
+      userName = "Whovian9369";
+      userEmail = "Whovian9369@gmail.com";
+      extraConfig = {
+        init = {
+          defaultBranch = "main";
+        };
+      };
+    };
+    jq = {
+      enable = true;
+    };
+    nix-index = {
+      enable = false;
+    };
+    ripgrep = {
+      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;
+      };
+      # enableAutosuggestions = true;
+      # enableCompletion = true;
+      oh-my-zsh = {
+        enable = true;
+        plugins = [
+          "git"
+          "sudo"
+        ];
+        theme = "bira";
+      };
+    };
+  };
+
+  home.packages = [
+    pkgs._7zz
+    pkgs.bat
+    pkgs.binwalk
+    pkgs.cdecrypt
+    pkgs.colorized-logs
+    pkgs.croc
+    pkgs.dhex
+    pkgs.fd
+    pkgs.file
+    pkgs.gdrive3
+    pkgs.git
+    pkgs.hactool
+    pkgs.instaloader
+    pkgs.internetarchive
+    pkgs.lynx
+    pkgs.megatools
+    pkgs.ncdu
+    pkgs.nixfmt-classic
+    pkgs.progress
+    pkgs.pyrosimple
+    pkgs.python3
+    pkgs.quickbms
+    pkgs.rclone
+    pkgs.screen
+    pkgs.sshfs
+    pkgs.unrar-wrapper
+    pkgs.wget
+    pkgs.xxd
+    pkgs.yq
+
+    # my_pkgs.irdkit
+    # my_pkgs.ird_tools
+    # my_pkgs.rom-properties
+
+    agenix.packages.${system}.default
+    xil.packages.${system}.xil
+   ];
+
+  /*
+    Disabled
+      pkgs.binutils
+        # Instead just do `nix shell nixpkgs#binutils -c strings -- INPUT.ext > INPUT.ext.strings
+      pkgs.mpv
+      pkgs.terminator
+      pkgs.yt-dlp
+      pkgs.p7zip
+        # Replaced in favour of nixpkgs#_7zz
+    Disabled
+  */
+
+  /*
+    # It is sometimes useful to fine-tune packages, for example, by applying
+    # overrides. You can do that directly here, just don't forget the
+    # parentheses. Maybe you want to install Nerd Fonts with a limited number of
+    # fonts?
+    (pkgs.nerdfonts.override { fonts = [ "FantasqueSansMono" ]; })
+  */
+
+}

home/variables.nix

@@ -0,0 +1,14 @@
+{
+  agenix,
+  config,
+  ...
+}:
+{
+  home.sessionVariables = {
+    EDITOR = "nano";
+    DOTNET_CLI_TELEMETRY_OPTOUT = "1";
+    OPENAI_API_KEY = "\$(cat ${config.age.secrets."openai".path})";
+    CURSEFORGE_API_KEY = "\$(cat ${config.age.secrets."cursed".path})";
+    ITCHIO_API_KEY = "\$(cat ${config.age.secrets."itchy".path})";
+  };
+}

system/nixos-wsl/configuration.nix

@@ -0,0 +1,39 @@
+{ lib,
+  pkgs,
+  config,
+  modulesPath,
+  nixos-wsl,
+  ...
+}:
+
+{
+  imports = [
+    ./packages.nix
+    ./users.nix
+    ./wsl.nix
+  ];
+
+  networking.hostName = "nixos-wsl";
+
+  # Enable nix flakes
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
+
+  time.timeZone = "America/New_York";
+
+  /*
+    Add environment.pathsToLink for auto-completion for system packages (e.g. systemd).
+    Appears to be required due to [GitHub - nix-community/home-manager]:
+    https://github.com/nix-community/home-manager/blob/c781b28add41b74423ab2e64496d4fc91192e13a/modules/programs/zsh.nix#L348-L358
+      [/modules/programs/zsh.nix]
+    https://github.com/nix-community/home-manager/issues/3521#issuecomment-1367197995
+      [Issue #3521]
+  */
+  environment.pathsToLink = [
+    "/share/zsh"
+  ];
+
+  system.stateVersion = "22.05";
+}

system/nixos-wsl/packages.nix

@@ -0,0 +1,52 @@
+{ lib, agenix, pkgs, config, modulesPath, ... }:
+{
+  environment.systemPackages = [
+    pkgs.file
+    pkgs.xterm
+    # `agenix` is currently added via
+    # "<config>.nixos-wsl.modules.environment.systemPackages"
+  ];
+
+
+  nixpkgs = {
+    config = {
+      allowUnfree = true;
+    };
+  };
+
+  programs = {
+    zsh = {
+      enable = true;
+    };
+    nano = {
+      enable = true;
+    };
+
+    # I haven't figured out how to get `cdemu` properly working (in WSL), so
+    # I'm just going to leave it as `programs.cdemu.enable = false;` for now.
+
+    cdemu = {
+      enable = false;
+      group = "cdrom";
+      gui = false;
+      image-analyzer = false;
+    };
+  };
+
+  # `documentation.man.generateCaches` seems to be mainly useful for `whatis`,
+  # but I couldn't really get it working well.
+  # From what I can tell, it depends on a package being installed via
+  # `environment.systemPackages`, *and* for that package to have a manpage.
+  # That's kinda useless for me since I've been mostly installing stuff via
+  # `home-manager`, sooooooooo...
+  /*
+  documentation = {
+    nixos = {
+      includeAllModules = true;
+    };
+    man = {
+      generateCaches = true;
+    };
+  };
+  */
+}

system/nixos-wsl/users.nix

@@ -0,0 +1,22 @@
+{ lib,
+  pkgs,
+  config,
+  modulesPath,
+  ...
+}:
+{
+  users = {
+    users = {
+      whovian = {
+        name = "whovian";
+        description = "Whovian9369";
+        extraGroups = [
+          "wheel"
+          "cdrom"
+        ];
+        shell = pkgs.zsh;
+        initialPassword = "abcde"; # I need to log in somehow
+      };
+    };
+  };
+}

system/nixos-wsl/wsl.nix

@@ -0,0 +1,12 @@
+{
+  wsl = {
+    enable = true;
+    defaultUser = "whovian";
+    startMenuLaunchers = false;
+    wslConf = {
+      automount = {
+        root = "/mnt";
+      };
+    };
+  };
+}