{
  pkgs,
  config,
  service_configs,
  lib,
  ...
}:
{
  imports = [
    (lib.serviceMountWithZpool "matrix-conduit" service_configs.zpool_ssds [
      service_configs.matrix.dataDir
    ])
  ];

  services.matrix-conduit = {
    enable = true;
    package = pkgs.matrix-continuwuity;

    settings.global = {
      port = service_configs.ports.matrix;
      server_name = service_configs.https.domain;
      database_backend = "rocksdb";
      allow_registration = true;
      registration_token = builtins.readFile ../secrets/matrix_reg_token;

      new_user_displayname_suffix = "";

      trusted_servers = [
        "matrix.org"
        "constellatory.net"
        "tchncs.de"
        "envs.net"
      ];

      # without this, conduit fails to start
      address = "0.0.0.0";
    };
  };

  services.caddy.virtualHosts.${service_configs.https.domain}.extraConfig = lib.mkBefore ''
    header /.well-known/matrix/* Content-Type application/json
    header /.well-known/matrix/* Access-Control-Allow-Origin *
    respond /.well-known/matrix/server `{"m.server": "${service_configs.matrix.domain}:${builtins.toString service_configs.ports.https}"}`
    respond /.well-known/matrix/client `{"m.server":{"base_url":"https://${service_configs.matrix.domain}"},"m.homeserver":{"base_url":"https://${service_configs.matrix.domain}"},"org.matrix.msc3575.proxy":{"base_url":"https://${config.services.matrix-conduit.settings.global.server_name}"}}`
  '';

  services.caddy.virtualHosts."${service_configs.matrix.domain}".extraConfig = ''
    reverse_proxy :${builtins.toString service_configs.ports.matrix}
  '';

  # Exact duplicate for federation port
  services.caddy.virtualHosts."${service_configs.matrix.domain}:${builtins.toString service_configs.ports.matrix_federation}".extraConfig =
    config.services.caddy.virtualHosts."${service_configs.matrix.domain}".extraConfig;

  systemd.tmpfiles.rules = [
    "Z ${service_configs.matrix.dataDir} 0770 ${config.systemd.services.conduit.serviceConfig.User} ${config.systemd.services.conduit.serviceConfig.User}"
  ];

  # for federation
  networking.firewall.allowedTCPPorts = [
    service_configs.ports.matrix_federation
  ];

  # for federation
  networking.firewall.allowedUDPPorts = [
    service_configs.ports.matrix_federation
  ];
}