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{
  inputs = {
    nixpkgs.url = "nixpkgs";
    zig.url = "github:silversquirl/zig-flake";
    zig.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = {
    self,
    nixpkgs,
    zig,
    ...
  }: let
    forAllSystems = f:
      builtins.mapAttrs
      (system: pkgs: f pkgs zig.packages.${system}.nightly)
      nixpkgs.legacyPackages;
  in {
    devShells = forAllSystems (pkgs: zig: {
      default = pkgs.mkShellNoCC {
        packages = [pkgs.bash zig zig.zls];
      };
    });

    packages = forAllSystems (pkgs: zig: {
      default = zig.makePackage {
        pname = "zhttpws";
        version = "0.0.0";
        src = ./.;
        zigReleaseMode = "fast";
        depsHash = "sha256-pQpattmS9VmO3ZIQUFn66az8GSmB4IvYhTTCFn6SUmo=";
      };
    });

    nixosModules.default = { config, lib, pkgs }:
      let cfg = config.services.zhttpws;
      in {
        options.services.zhttpws = {
          enable = lib.mkEnableOption "zhttpws";
          domain = lib.mkOption {
            type = lib.types.str;
          };
          port = lib.mkOption {
            type = lib.types.port;
          };
        };

        config = lib.mkIf cfg.enable {
          systemd.services.zhttpws = {
            wantedBy = [ "multi-user.target" ];
            after = [ "network.target" ];
            serviceConfig = {
              ExecStart = "${self.packages.${pkgs.system}.default}/bin/zhttpws";
              DynamicUser = true;
              Restart = "always";
            };
            environment = {
              PORT = toString cfg.port;
            };
          };

          services.caddy.virtualHosts."${cfg.domain}".extraConfig = ''
              reverse_proxy localhost:${toString cfg.port}
          '';
        };
      };
  };
}