nix-config/hosts/dnsc-server/default.nix

{
  config,
  inputs,
  outputs,
  pkgs,
  ...
}:
{
  imports = [
    ./hardware-configuration.nix
    inputs.home-manager.nixosModules.home-manager
    ../../modules/docker
    ../../modules/ups
    ../../modules/restic
    ../../modules/samba
    ../../modules/openssh
    ../../modules/jellyfin
    ../../modules/actual-server
    ../../modules/immich
    ../../modules/cockpit
    ../../modules/backrest
  ];

  # General
  time.timeZone = "Europe/Berlin";
  i18n.defaultLocale = "en_US.UTF-8";

  # Boot
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  boot.loader.systemd-boot.configurationLimit = 10;
  boot.supportedFilesystems = [ "zfs" ];
  boot.zfs.forceImportRoot = false;
  boot.zfs.extraPools = [ "main" ];

  # Secrets
  age = {
    identityPaths = [ "${config.users.users.dennis.home}/.ssh/id_ed25519" ];
    secrets."restic/password" = {
      file = ../../secrets/restic/password.age;
    };
  };

  # Nix Settings
  # Perform garbage collection weekly to maintain low disk usage
  nix.gc = {
    automatic = true;
    dates = "weekly";
    options = "--delete-older-than 1w";
  };
  nix.settings.auto-optimise-store = true;

  programs.bash = {
    enable = true;
  };

  # Networking
  networking.hostName = "dnsc-server";
  networking.hostId = "380f584e";
  networking.networkmanager.enable = true;
  # Fix due to https://github.com/NixOS/nixpkgs/issues/180175
  systemd.services.NetworkManager-wait-online.enable = false;

  # Firewall
  networking.firewall = {
    enable = true;
    allowedTCPPorts = [
      22
      443
      9004
    ];
    allowedUDPPorts = [
      22
      443
      9004
    ];
  };

  # My user account
  users.users.dennis = {
    description = "dennis";
    isNormalUser = true;
    extraGroups = [
      "wheel"
      "networkmanager"
    ];
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILvXWZOPOJJDAoF+Sx/ZLoAVu6G/7/MAWoknBgMAzjul dennis@dnsc-mac"
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKnmuxDkpDIku5t1Tykz21u78xoQ7LJR8JEcfth32LGu dennis@dnsc-work"
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF8LXdDU3C4PcCHb/BEm1xQIZyo2KTR5Dcuw6ni+SxmH dennis@dnsc-machine"
    ];
  };

  security.sudo.enable = true;

  # Home Manager Setup
  home-manager = {
    extraSpecialArgs = { inherit inputs outputs; };
    backupFileExtension = "backup";
    users = {
      dennis = import ../../home/server.nix;
    };
  };

  # Enable new Nix CLI and flakes
  nix.settings.experimental-features = [
    "nix-command"
    "flakes"
  ];

  # Install system wide packages
  environment.systemPackages = with pkgs; [
    git
    btop
    neovim
    wget
    jellyfin
    jellyfin-web
    jellyfin-ffmpeg
    usbutils
    restic
    mkcert
    actual-server
    cockpit
  ];

  # GnuPG
  programs.gnupg.agent = {
    enable = true;
    enableSSHSupport = true;
  };

  # ZFS
  services.zfs = {
    autoSnapshot.enable = true;
    trim.enable = true;
  };

  # Caddy
  services.caddy = {
    enable = true;
    virtualHosts."media.home.lan".extraConfig = ''
      reverse_proxy http://127.0.0.1:8096
      tls internal
    '';
    virtualHosts."finance.home.lan".extraConfig = ''
      encode gzip zstd
      reverse_proxy http://127.0.0.1:9002
      tls internal
    '';
    virtualHosts."photos.home.lan".extraConfig = ''
      reverse_proxy http://127.0.0.1:9003
      tls internal
    '';
    virtualHosts."backup.home.lan".extraConfig = ''
      reverse_proxy http://127.0.0.1:9004
      tls internal
    '';
  };

  # Environment variables
  environment.variables.EDITOR = "nvim";

  # 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;

  # 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 = "24.11";
}