let
  mods = import ./modules;
  users = import ./users;
  sources = import ./npins;
  mkNixpkgsSrc = (import sources.nix-patches { patchFile = ./patches; }).mkNixpkgsSrc;
in
{
  meta = {
    nixpkgs = mkNixpkgsSrc {
      src = sources.nixpkgs;
      version = "unstable";
    };
    nodeNixpkgs."kat-mail-test" = mkNixpkgsSrc {
      src = sources.nixpkgs;
      version = "betamail";
    };
    specialArgs = {
      inherit mods users sources;
    };
  };
  defaults =
    {
      nodes,
      name,
      pkgs,
      lib,
      config,
      ...
    }:
    {
      imports = [
        ./kat
      ];
      networking.hostName = name;
    };

  kat-probook =
    { users, ... }:
    {
      deployment.allowLocalDeployment = true;

      imports = [
        ./machines/kat-probook
        users.catvayor
      ];
      nix.settings.trusted-users = [
        "root"
        "@wheel"
      ];
    };

  kat-manah =
    { users, ... }:
    {
      deployment.targetHost = "manah.kat";
      services.openssh.enable = true;
      kat.fqdn = "manah.katvayor.net";
      imports = [
        ./machines/kat-manah
      ];
    };

  kat-watcher =
    { users, ... }:
    {
      deployment.targetHost = "watcher.kat";
      services.openssh.enable = true;
      kat.fqdn = "watcher.katvayor.net";
      imports = [
        ./machines/kat-watcher
      ];
    };

  kat-virt =
    { ssh-keys, ... }:
    {
      deployment = {
        targetHost = "virt.kat";
        tags = [ "kat-vms" ];
      };
      services.openssh.enable = true;
      services.qemuGuest.enable = true;
      boot.kernelParams = [ "console=ttyS0" ];
      kat.fqdn = "degette.katvayor.net";

      imports = [
        ./machines/kat-virt
      ];
      users.users.root.openssh.authorizedKeys.keys = with ssh-keys; sylvain ++ gaby;
    };

  kat-mail-test =
    { ssh-keys, ... }:
    {
      deployment = {
        targetHost = "mail-test.kat";
        tags = [ "kat-vms" ];
      };
      services.openssh.enable = true;
      services.qemuGuest.enable = true;
      boot.kernelParams = [ "console=ttyS0" ];
      kat.fqdn = "betamail.katvayor.net";

      imports = [
        ./machines/kat-mail-test
      ];
      users.users.root.openssh.authorizedKeys.keys = ssh-keys.sylvain;
    };

  kat-son =
    { users, ... }:
    {
      deployment = {
        targetHost = "son.kat";
        tags = [ "kat-vms" ];
      };
      services.openssh.enable = true;
      services.qemuGuest.enable = true;
      boot.kernelParams = [ "console=ttyS0" ];
      kat.fqdn = "son.katvayor.net";
      imports = [
        ./machines/kat-son
      ];
    };

  kat-orchid =
    { users, ... }:
    {
      deployment = {
        targetHost = "orchid.kat";
        tags = [ "kat-vms" ];
      };
      services.openssh.enable = true;
      services.qemuGuest.enable = true;
      boot.kernelParams = [ "console=ttyS0" ];
      kat.fqdn = "orchid.katvayor.net";
      imports = [
        ./machines/kat-orchid
      ];
    };

  kat-iso =
    {
      users,
      pkgs,
      modulesPath,
      lib,
      ...
    }:
    {
      deployment = {
        allowLocalDeployment = false;
        targetHost = null;
      };

      imports = [
        (modulesPath + "/installer/cd-dvd/installation-cd-minimal-new-kernel-no-zfs.nix")
      ];

      networking = {
        networkmanager.enable = true;
        wireless.enable = false;
      };
      console.keyMap = "fr";

      environment.systemPackages = with pkgs; [
        perl
        git
      ];
      programs.zsh.enable = true;
      services.openssh.enable = true;
      services.qemuGuest.enable = true;
      boot.supportedFilesystems = {
        bcachefs = true;
        zfs = lib.mkForce false;
      };
      boot.kernelParams = [ "console=ttyS0" ];
      boot.kernelPackages = lib.mkForce pkgs.linuxPackages_latest;
      services.getty.autologinUser = lib.mkForce "root";
      system.stateVersion = lib.mkForce "24.11";
    };

  kat-kexec =
    {
      users,
      pkgs,
      modulesPath,
      lib,
      ...
    }:
    {
      deployment = {
        allowLocalDeployment = false;
        targetHost = null;
      };

      imports = [
        ("${sources.nixos-images}/nix/kexec-installer/module.nix")
      ];

      networking = {
        networkmanager.enable = false;
        wireless.enable = false;
      };
      console.keyMap = "fr";

      environment.systemPackages = with pkgs; [
        perl
        git
      ];
      programs.zsh.enable = true;
      services.openssh.enable = true;
      services.qemuGuest.enable = true;
      boot.kernelParams = [ "console=ttyS0" ];
      boot.kernelPackages = lib.mkForce pkgs.linuxPackages_latest;
      boot.supportedFilesystems = {
        bcachefs = true;
        zfs = lib.mkForce false;
      };
      services.getty.autologinUser = lib.mkForce "root";
      system.stateVersion = lib.mkForce "24.11";
    };
}