Initial setup

configuration.nix

@@ -0,0 +1,119 @@
+# Edit this configuration file to define what should be installed on
+# your system. Help is available in the configuration.nix(5) man page, on
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{ config, lib, pkgs, ... }:
+
+{
+  imports = [ # Include the results of the hardware scan.
+    ./hardware-configuration.nix
+  ];
+
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  # networking.hostName = "nixos"; # Define your hostname.
+  # Pick only one of the below networking options.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+  # networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
+
+  # Set your time zone.
+  # time.timeZone = "Europe/Amsterdam";
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Select internationalisation properties.
+  # i18n.defaultLocale = "en_US.UTF-8";
+  # console = {
+  #   font = "Lat2-Terminus16";
+  #   keyMap = "us";
+  #   useXkbConfig = true; # use xkb.options in tty.
+  # };
+
+  # Enable the X11 windowing system.
+  # services.xserver.enable = true;
+
+  # Configure keymap in X11
+  # services.xserver.xkb.layout = "us";
+  # services.xserver.xkb.options = "eurosign:e,caps:escape";
+
+  # Enable CUPS to print documents.
+  # services.printing.enable = true;
+
+  # Enable sound.
+  # services.pulseaudio.enable = true;
+  # OR
+  # services.pipewire = {
+  #   enable = true;
+  #   pulse.enable = true;
+  # };
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.libinput.enable = true;
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  # users.users.alice = {
+  #   isNormalUser = true;
+  #   extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+  #   packages = with pkgs; [
+  #     tree
+  #   ];
+  # };
+
+  # programs.firefox.enable = true;
+
+  # List packages installed in system profile.
+  # You can use https://search.nixos.org/ to find more packages (and options).
+  # environment.systemPackages = with pkgs; [
+  #   vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+  #   wget
+  # ];
+
+  # Some programs need SUID wrappers, can be configured further or are
+  # started in user sessions.
+  # programs.mtr.enable = true;
+  # programs.gnupg.agent = {
+  #   enable = true;
+  #   enableSSHSupport = true;
+  # };
+
+  # List services that you want to enable:
+
+  # Enable the OpenSSH daemon.
+  # services.openssh.enable = true;
+
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # Copy the NixOS configuration file and link it from the resulting system
+  # (/run/current-system/configuration.nix). This is useful in case you
+  # accidentally delete configuration.nix.
+  # system.copySystemConfiguration = true;
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "25.05"; # Did you read the comment?
+
+}
+

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1758589230,
+        "narHash": "sha256-zMTCFGe8aVGTEr2RqUi/QzC1nOIQ0N1HRsbqB4f646k=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "d1d883129b193f0b495d75c148c2c3a7d95789a0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-25.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,18 @@
+{
+  description = "My Homelab setup for NixOS";
+
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
+
+  outputs = { self, nixpkgs }: {
+    nixosConfigurations.homelab = nixpkgs.lib.nixosSystem {
+      modules = [
+        ./configuration.nix
+        ./hardware-configuration.nix
+        ./networking/host.nix
+        ./packages.nix
+        ./users.nix
+        ./networking/ssh.nix
+      ];
+    };
+  };
+}

hardware-configuration.nix

@@ -0,0 +1,51 @@
+# 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" "sd_mod" "rtsx_pci_sdmmc" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/887383a8-555c-4156-9b62-337ae007ce51";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/6979-163D";
+      fsType = "vfat";
+      options = [ "fmask=0077" "dmask=0077" ];
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/3fc91af7-13f4-4088-bb9a-7d6c8adf6d73"; }
+    ];
+
+  # 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.cni0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp0s31f6.useDHCP = lib.mkDefault true;
+  # networking.interfaces.flannel.1.useDHCP = lib.mkDefault true;
+  # networking.interfaces.veth17db2936.useDHCP = lib.mkDefault true;
+  # networking.interfaces.veth43e2454a.useDHCP = lib.mkDefault true;
+  # networking.interfaces.veth4c6fcbd9.useDHCP = lib.mkDefault true;
+  # networking.interfaces.veth55d9b858.useDHCP = lib.mkDefault true;
+  # networking.interfaces.veth61cf02b5.useDHCP = lib.mkDefault true;
+  # networking.interfaces.vethe8736672.useDHCP = lib.mkDefault true;
+  # networking.interfaces.vethf6a2e389.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wg0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp2s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

networking/host.nix

@@ -0,0 +1,37 @@
+{ config, lib, pkgs, ... }: {
+  services.avahi = {
+    enable = true;
+    nssmdns4 = true;
+    openFirewall = true;
+    publish = {
+      enable = true;
+      userServices = true;
+      addresses = true;
+    };
+  };
+
+  # DNS server
+  services.resolved.enable = true;
+
+  networking = {
+    nameservers = [ "205.171.3.25" "8.8.8.8" ];
+
+    enableIPv6 = false;
+
+    # Avahi port
+    firewall.allowedUDPPorts = [ 5353 ];
+
+    hostName = "homelab";
+    interfaces.enp0s31f6 = {
+      ipv4.addresses = [{
+        address = "192.168.0.10";
+        prefixLength = 24;
+      }];
+    };
+
+    defaultGateway = {
+      address = "192.168.0.1";
+      interface = "enp0s31f6";
+    };
+  };
+}

networking/ssh.nix

@@ -0,0 +1,5 @@
+{ config, lib, pkgs, ... }: {
+  services.openssh.enable = true;
+
+  networking.firewall.allowedTCPPorts = [ 22 ];
+}

packages.nix

@@ -0,0 +1,8 @@
+{ config, lib, pkgs, ... }: {
+  environment.systemPackages = with pkgs; [
+    neovim
+    vimPlugins.LazyVim
+    git
+    wget
+  ];
+}

system.nix

@@ -0,0 +1,5 @@
+{ config, lib, pkgs, ... }: {
+  # System boots
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+}

users.nix

@@ -0,0 +1,15 @@
+{ config, lib, pkgs, ... }: {
+  programs.fish.enable = true;
+
+  users.users.lucas = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ];
+
+    shell = pkgs.fish;
+
+    packages = with pkgs; [eza];
+
+    hashedPassword =
+      "$6$X.mw03yY/VFjDThj$t1I68HZz6NBihZGhiJ6Ct8ZuOufX6ZX9pydnK4puTjT1XKfMO1FY5VL1DwywJHrXOEJtohV99TmrABfjdBQY21";
+  };
+}