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{
  inputs.openarc = {
    path = "../../openarc";
    type = "path";
  };
  inputs.files-watcher = {
    path = "../../files-watcher";
    type = "path";
  };
  inputs.my-lib = {
    path = "../../lib";
    type = "path";
  };
  inputs.nix-lib.url = "github:NixOS/nixpkgs";

  description = "Private configuration for openarc";
  outputs = { self, nix-lib, my-lib, files-watcher, openarc }:
    let
      cfg = name': { config, lib, pkgs, name, ... }: {
        imports = [ (my-lib.lib.withNarKey files-watcher "nixosModule") ];
        config = lib.mkIf (name == name') {
          services.openarc = {
            enable = true;
            user = "opendkim";
            socket = "local:${config.myServices.mail.milters.sockets.openarc}";
            group = config.services.postfix.group;
            configFile = pkgs.writeText "openarc.conf" ''
              AuthservID              mail.immae.eu
              Domain                  mail.immae.eu
              KeyFile                 ${config.secrets.fullPaths."opendkim/eldiron.private"}
              Mode                    sv
              Selector                eldiron
              SoftwareHeader          yes
              Syslog                  Yes
              '';
          };
          systemd.services.openarc.serviceConfig.Slice = "mail.slice";
          systemd.services.openarc.postStart = lib.optionalString
                (lib.strings.hasPrefix "local:" config.services.openarc.socket) ''
            while [ ! -S ${lib.strings.removePrefix "local:" config.services.openarc.socket} ]; do
              sleep 0.5
            done
            chmod g+w ${lib.strings.removePrefix "local:" config.services.openarc.socket}
            '';
          services.filesWatcher.openarc = {
            restart = true;
            paths = [
              config.secrets.fullPaths."opendkim/eldiron.private"
            ];
          };
        };
      };
    in
      openarc.outputs //
      { nixosModules = openarc.nixosModules or {} // nix-lib.lib.genAttrs ["eldiron" "backup-2"] cfg; };
}