Nix flakes

configuration.nix

{ pkgs, ... }: {
  imports = [ ./hardware-configuration.nix ];

  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  networking.hostName = "eva04"; # Define your hostname.
  networking.networkmanager.enable = true;

  # Set your time zone.
  time.timeZone = "America/Chicago";

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";

  i18n.extraLocaleSettings = {
    LC_ADDRESS = "en_US.UTF-8";
    LC_IDENTIFICATION = "en_US.UTF-8";
    LC_MEASUREMENT = "en_US.UTF-8";
    LC_MONETARY = "en_US.UTF-8";
    LC_NAME = "en_US.UTF-8";
    LC_NUMERIC = "en_US.UTF-8";
    LC_PAPER = "en_US.UTF-8";
    LC_TELEPHONE = "en_US.UTF-8";
    LC_TIME = "en_US.UTF-8";
  };

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.malev = {
    isNormalUser = true;
    description = "malev";
    extraGroups = [ "docker" "networkmanager" "wheel" ];
    shell = pkgs.zsh;
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIN3TfkWl/U0TJwQYi686C3/aQ5rKQpjts27uo1cGdb5K [email protected]"
      "ssh-rsa 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 [email protected]"
    ];
  };

  nix.settings.experimental-features = [ "nix-command" "flakes" ];

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    git
    htop
    k3s
    kubectx
    kubectl
    kubernetes-helm
    neovim
  ];
  programs.zsh.enable = true;

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  services.openssh.enable = true;
  services.openssh.settings.PasswordAuthentication = false;

  # Configure keymap in X11
  services.xserver.xkb = {
    layout = "us";
    variant = "";
  };

  system.stateVersion = "24.05"; # Did you read the comment?
}

flake.nix

{
  description = "NixOS flake";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, home-manager, ... }@inputs:
    let inherit (self) outputs;
    in {
      nixosConfigurations = {
        eva04 = nixpkgs.lib.nixosSystem {
          specialArgs = { inherit inputs outputs; };
          modules = [ ./configuration.nix ];
        };
      };
    };
}

hardware-configuration.nix

# Do not modify this file!  It was generated by ‘nixos-generate-config’
# and may be overwritten by future invocations.  Please make changes
# to /etc/nixos/configuration.nix instead.
{ config, lib, pkgs, modulesPath, ... }:

{
  imports =
    [ (modulesPath + "/installer/scan/not-detected.nix")
    ];

  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" "sdhci_pci" ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ ];

  fileSystems."/" =
    { device = "/dev/disk/by-uuid/c8e0f417-0bb2-49dd-bc32-8602e3111d51";
      fsType = "ext4";
    };

  fileSystems."/boot" =
    { device = "/dev/disk/by-uuid/999B-F740";
      fsType = "vfat";
      options = [ "fmask=0077" "dmask=0077" ];
    };

  swapDevices = [ ];

  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
  # (the default) this is the recommended approach. When using systemd-networkd it's
  # still possible to use this option, but it's recommended to use it in conjunction
  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
  networking.useDHCP = lib.mkDefault true;
  # networking.interfaces.enp2s0.useDHCP = lib.mkDefault true;
  # networking.interfaces.wlp1s0.useDHCP = lib.mkDefault true;

  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
}