{
  config,
  pkgs,
  ...
}:
with config.constants; let
  usrPwdFile = "users/${userName}/password";
in {
  console.enable = false;

  fonts = {
    fontDir.enable = true;
    fontconfig.defaultFonts = {
      sansSerif = ["Inter" "Noto Sans CJK SC"];
      monospace = ["Iosevka" "Noto Sans Mono CJK SC"];
    };
    packages = with pkgs; [
      inter
      iosevka
      noto-fonts-cjk-sans
    ];
  };

  home-manager = {
    useGlobalPkgs = true;
    useUserPackages = true;
    users.${userName} = {
      config,
      osConfig,
      pkgs,
      ...
    }: {
      home = {
        file.kvantum = {
          enable = config.programs.plasma.enable;
          target = ".config/Kvantum/kvantum.kvconfig";
          text = ''
            [General]
            theme=Sweet-Ambar-Blue
          '';
        };
        packages = with pkgs;
          [
            alejandra
            dua
            fd
            jjui
            nil
            rclone
            sops
          ]
          ++ (
            if config.programs.plasma.enable
            then [
              kdePackages.qtstyleplugin-kvantum
              sweet-ambar-blue
              yorha-sound-theme
            ]
            else []
          );
        stateVersion = osConfig.system.stateVersion;
      };
      programs = {
        bat.enable = true;
        bottom.enable = true;
        direnv = {
          enable = true;
          nix-direnv.enable = true;
        };
        eza.enable = true;
        firefox.enable = config.programs.plasma.enable;
        fish.enable = true;
        fzf.enable = true;
        git = {
          enable = true;
          ignores = [
            ".direnv"
            ".envrc"
          ];
          userEmail = postMaster;
          userName = userName;
        };
        helix = {
          enable = true;
          defaultEditor = true;
          settings = {
            editor = {
              lsp.display-inlay-hints = true;
              soft-wrap.enable = true;
            };
            theme = "base16_transparent";
          };
        };
        kitty = {
          enable = config.programs.plasma.enable;
          settings = {
            background_opacity = "0.96";
            hide_window_decorations = "yes";
            remember_window_size = "no";
          };
          themeFile = "tokyo_night_moon";
        };
        jujutsu = {
          enable = true;
          settings = {
            git.sign-on-push = true;
            signing = {
              behaviour = "own";
              backend = "gpg";
            };
            ui = {
              default-command = "status";
              editor = "hx";
              paginate = "never";
            };
            user = {
              email = postMaster;
              name = userName;
            };
          };
        };
        plasma = {
          enable = osConfig.services.desktopManager.plasma6.enable;
          configFile = {
            baloofilerc = {
              "Basic Settings".Indexing-Enabled = true;
              General."only basic indexing" = true;
            };
            kded5rc.Module-browserintegrationreminder.autoload = false;
            kdeglobals.General = {
              TerminalApplication = "kitty";
              TerminalService = "kitty.desktop";
            };
          };
          desktop.icons = {
            alignment = "left";
            arrangement = "leftToRight";
            lockInPlace = true;
            sorting = {
              foldersFirst = true;
              mode = "type";
            };
          };
          immutableByDefault = true;
          kscreenlocker = {
            appearance.wallpaperPictureOfTheDay.provider = "bing";
            autoLock = true;
            lockOnResume = true;
            passwordRequired = true;
            timeout = 30;
          };
          kwin = {
            borderlessMaximizedWindows = true;
            effects = {
              blur.enable = true;
              desktopSwitching.animation = "slide";
              dimAdminMode.enable = true;
              windowOpenClose.animation = "glide";
            };
            virtualDesktops = {
              number = 4;
              rows = 1;
            };
          };
          overrideConfig = true;
          panels = [
            {
              floating = false;
              height = 36;
              widgets = [
                {
                  kickoff = {
                    icon = "nix-snowflake-white";
                    showButtonsFor = "power";
                    sortAlphabetically = true;
                  };
                }
                {
                  pager.general.navigationWrapsAround = true;
                }
                {
                  iconTasks.launchers = [];
                }
                {
                  systemTray = {
                    icons.scaleToFit = false;
                    items.showAll = true;
                  };
                }
                {
                  digitalClock.timeZone.selected = ["Local"];
                }
              ];
            }
          ];
          powerdevil.AC = {
            autoSuspend.action = "nothing";
            dimDisplay = {
              enable = true;
              idleTimeout = 600;
            };
            powerButtonAction = "sleep";
            powerProfile = "performance";
            turnOffDisplay = {
              idleTimeout = 1200;
              idleTimeoutWhenLocked = 60;
            };
            whenSleepingEnter = "standby";
          };
          spectacle.shortcuts.captureRectangularRegion = "Meta+Shift+S";
          workspace = {
            colorScheme = "SweetAmbarBlue";
            iconTheme = "Sweet-Rainbow";
            lookAndFeel = "Sweet-Ambar-Blue";
            soundTheme = "yorha";
            wallpaperPictureOfTheDay.provider = "bing";
          };
        };
        ripgrep.enable = true;
        starship = {
          enable = true;
          enableTransience = true;
        };
        tealdeer.enable = true;
        zoxide = {
          enable = true;
          options = ["--cmd cd"];
        };
      };
    };
  };

  i18n = {
    defaultLocale = "zh_CN.UTF-8";
    supportedLocales = ["all"];
  };

  programs = {
    command-not-found.enable = false;
    fish.enable = true;
    nh.enable = true;
    nix-index.enable = true;
  };

  services = {
    openssh = {
      hostKeys = [
        {
          comment = "host@${config.networking.hostName}";
          path = "/etc/ssh/host";
          rounds = 100;
          type = "ed25519";
        }
      ];
      settings = {
        PasswordAuthentication = false;
        KbdInteractiveAuthentication = false;
      };
    };
    resolved.enable = true;
    syncthing = {
      configDir = "${homeDir}/.config/syncthing";
      dataDir = "${homeDir}/.local/share/syncthing";
      openDefaultPorts = true;
      overrideDevices = true;
      overrideFolders = true;
      settings.devices = syncthingDevices;
      user = userName;
    };
  };

  sops.secrets.${usrPwdFile}.neededForUsers = true;

  users = {
    mutableUsers = false;
    users.${userName} = {
      description = "Sicheng Pan";
      extraGroups = [
        "audio"
        "dialout"
        "input"
        "networkmanager"
        "storage"
        "wheel"
      ];
      hashedPasswordFile = config.sops.secrets.${usrPwdFile}.path;
      home = homeDir;
      isNormalUser = true;
      openssh.authorizedKeys.keys = publicKeys;
      shell = pkgs.fish;
    };
  };
}