let
  inherit (import (import ../nix/sources.nix).nixpkgs { }) lib;
  makeConfig = hostName: imports:
    { ... }: {
      imports = imports ++ [ ./roles/default.nix ];
      m-0.hostName = hostName;
    };
in {
  apollo = let
    setStartpage = startpage:
      { ... }: {
        programs.firefox.profiles."fz2sm95u.default".settings = {
          "browser.startup.homepage" = startpage;
        };
      };
    makeBlock = list:
      { pkgs, lib, ... }: {
        systemd.user = {
          services.blockserver = {
            Unit = { Description = "Serve a blocklist"; };
            Service = {
              ExecStart = "${pkgs.python3}/bin/python -m http.server 8842 -d ${
                  pkgs.writeTextDir "blocklist"
                  (lib.concatStringsSep "\r\n" list)
                }";
              Restart = "always";
            };
            Install = { WantedBy = [ "default.target" ]; };
          };
        };
      };
    tinkerPages = [
      "reddit.com"
      "github.com"
      "*.ccc.de"
      "haskell.org"
      "*.haskell.org"
      "*.nixos.org"
      "nixos.org"
      "matrix.org"
      "element.io"
      "youtube.de"
      "youtube.com"
      "*.element.io"
    ];
    leisurePages = [
      "zeit.de"
      "heise.de"
      "spiegel.de"
      "xkcd.com"
      "smbc-comics.com"
      "tagesschau.de"
      "welt.de"
      "ndr.de"
      "ard.de"
      "zdf.de"
      "twitter.com"
      "chaos.social"
    ];
    apolloConfig = imports:
      makeConfig "apollo" (imports ++ [
        ./roles/zettelkasten.nix
        ./roles/hoogle.nix
        ./roles/battery.nix
        ./roles/mpd.nix
        ./roles/beets.nix
        ./roles/mpclient.nix
        ./roles/on-my-machine.nix
        ./roles/desktop
        ./roles/git-sign.nix
        ./roles/laptop.nix
        ./roles/mail.nix
        ./roles/update_tasks.nix
      ]);
    unrestricted = [
      ./roles/accounting.nix
      ./roles/mail-client.nix
      ./roles/pythia.nix
      ./roles/research.nix
      ./roles/tinkering.nix
      ./roles/chat.nix
      (setStartpage "https://stats.maralorn.de/d/health-status")
      (makeBlock [ ])
    ];
  in {
    unrestricted = apolloConfig unrestricted;
    orga = apolloConfig [
      ./roles/mail-client.nix
      ./roles/accounting.nix
      ./roles/pythia.nix
      (setStartpage "https://habitica.com")
      (makeBlock (tinkerPages ++ leisurePages))
    ];
    research = apolloConfig [
      ./roles/research.nix
      (makeBlock (tinkerPages ++ leisurePages))
      (setStartpage "http://localhost:8042")
    ];
    gaming = apolloConfig (unrestricted ++ [ ./roles/games.nix ]);
  };
  hera = {
    default = makeConfig "hera" [
      ./roles/on-my-machine.nix
      ./roles/headless.nix
      ./roles/weechat
      ./roles/kassandra-server.nix
      ./roles/headless-mpd.nix
      ./roles/mail.nix
    ];
  };
}