{ config, pkgs, ... }: {
  imports = [
    ./hardware-configuration.nix
    ../../common/fragments/bin.nix
    ../../common/fragments/fail2ban.nix
    ../../common/fragments/grafana.nix
    ../../common/fragments/homepage.nix
    ../../common/fragments/mastodon-ebooks.nix
    ../../common/fragments/matterbridge.nix
    ../../common/fragments/nyandroid.nix
    ../../common/fragments/prometheus_exporters.nix
    ../../common/fragments/vsftpd.nix
    ../../common/home_manager/common.nix
  ];

  nixpkgs.overlays = [
    (self: super: {
      bin = self.callPackage ../../common/pkgs/bin.nix { };
      vampysite = self.callPackage ../../common/pkgs/vampysite.nix { };
    })
  ];

  # Bootloader.
  boot.loader.grub.enable = true;
  boot.loader.grub.device = "/dev/sda";
  boot.loader.grub.useOSProber = true;

  networking.hostName = "bloodletting";

  # Enable networking
  networking.networkmanager.enable = true;

  # Enable the OpenSSH daemon.
  services.openssh = {
    enable = true;
    banner = ''
      Hello mistress ^,,^
    '';
    passwordAuthentication = false;
  };

  # Open ports in the firewall.
  networking.firewall = {
    allowedTCPPorts = [ 80 443 20 21 22 990 6162 ];
    allowedTCPPortRanges = [{
      from = 40000;
      to = 40200;
    }];
  };

  virtualisation = {
    podman = {
      enable = true;
      dockerCompat = true;
      defaultNetwork.dnsname.enable = true;
    };
    oci-containers = { backend = "podman"; };
  };

  # SSL/TLS Certificates
  security.acme.acceptTerms = true;
  security.acme.defaults.email = "letsencrypt@technogothic.net";

  security.acme.certs."technogothic.net" = {
    domain = "*.technogothic.net";
    dnsProvider = "rfc2136";
    credentialsFile = "/var/lib/secrets/rfc2136-technogothic-net";
    group = "nginx";
  };

  security.acme.defaults.reloadServices = [ "nginx" "vsftpd" ];

  # Nginx
  services.nginx = {
    enable = true;

    statusPage = true;

    # Use recommended settings
    recommendedGzipSettings = true;
    recommendedOptimisation = true;
    recommendedProxySettings = true;
    recommendedTlsSettings = true;

    virtualHosts."technogothic.net" = {
      useACMEHost = "technogothic.net";
      forceSSL = true;
      root = pkgs.vampysite;

      locations."=/cv.pdf" = { alias = "/home/ftp/cv.pdf"; };

      extraConfig = ''
        error_page 404 /404.html;
      '';
    };

    virtualHosts."grafana.technogothic.net" = {
      useACMEHost = "technogothic.net";
      forceSSL = true;

      locations."/" = {
        proxyPass = "http://localhost:2342";
        proxyWebsockets = true;
      };
    };

    virtualHosts."home.technogothic.net" = {
      useACMEHost = "technogothic.net";
      forceSSL = true;

      locations."/" = {
        proxyPass = "http://localhost:3000";
        proxyWebsockets = true;
      };
    };

    virtualHosts."thermalpaste.technogothic.net" = {
      useACMEHost = "technogothic.net";
      forceSSL = true;

      locations."/" = {
        proxyPass = "http://localhost:6162";
        proxyWebsockets = true;
      };
    };
  };

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "22.11"; # Did you read the comment?
}