mn4w - My NixOS for work ❄️

My NixOS configuration (using Flakes and Home Manager).

---

1. Create a new host

Create a new directory under modules/hosts using your hostname.

Example:

# modules/hosts/mypc/default.nix

{ config, pkgs, lib, inputs, ... }: {
    time.timeZone = "Asia/Ho_Chi_Minh";
    i18n.defaultLocale = "en_US.UTF-8";

    imports = [
        ./hardware-configuration.nix
        ./gaming.nix
        # You can also import shared modules here
    ];

    # Host-specific options go here
}

A host module is responsible for:

• System-level configuration
• Hardware configuration
• Importing shared system modules

Hosts do not import users directly.

2. Define users

Users are defined under modules/users. Each user lives in its own module.

You can define users directly inside a host configuration, but this repository avoids that approach to keep user definitions reusable across multiple hosts and to make user selection explicit at the flake level.

Example:

modules/users/
├── katou/
│   └── default.nix
├── alice/
│   └── default.nix
└── bob/
    └── default.nix

# modules/users/katou/default.nix

{ config, pkgs, lib, inputs, ... }: {
    users.users.katou = {
        isNormalUser = true;
        extraGroups = [ "wheel" ];
    };

    # Optional: attach Home Manager configuration
    home-manager = {
        useUserPackages = true;
        useGlobalPkgs = true;

        users.katou = {
            programs.kitty.enable = true;
            # Import shared Home Manager modules here if needed
        };
    };

    # You can also import shared modules here
}

Each user module may:

• Define exactly one system user
• Optionally attach Home Manager configuration
• Reuse shared Home Manager modules

3. Assign users to a host (via flake.nix)

# flake.nix

nixosConfigurations = {
    mypc = mkSystem   "x86_64-linux"   "25.05"          "mypc"      [ "katou" "alice" "bob" ];
                      #system          #state_version   #hostname   #all_users

    # More hosts...
};

The user list determines:

• Which user modules are imported
• Which system users and Home Manager configs are enabled on that host

Hosts themselves remain user-agnostic.

4. Apply the configuration

sudo nixos-rebuild switch --flake .#mypc