{
  environment.variables = {
    # OpenGL
    __GL_GSYNC_ALLOWED = "1";
    __GL_VRR_ALLOWED = "0";
    __GL_MaxFramesAllowed = "1";

    # Java
    _JAVA_AWT_WM_NONREPARENTING = "1";

    # Qt
    QT_AUTO_SCREEN_SCALE_FACTOR = "1";
    QT_WAYLAND_DISABLE_WINDOWDECORATION = "1";
    QT_QPA_PLATFORM = "wayland;xcb";
    DISABLE_QT5_COMPAT = "0";
    DISABLE_QT_COMPAT = "0";
    QT_QPA_PLATFORMTHEME = "qt5ct";
    # QT_STYLE_OVERRIDE = "kvantum";

    # Electron
    # ELECTRON_OZONE_PLATFORM_HINT = "auto";
    # OZONE_PLATFORM = "wayland";
    NIXOS_OZONE_WL = "1";

    # Proton
    PROTON_ENABLE_NGX_UPDATER = "1";

    # wlroots
    WLR_NO_HARDWARE_CURSORS = "1";
    WLR_DRM_NO_ATOMIC = "1";
    WLR_USE_LIBINPUT = "1";
    WLR_RENDERER_ALLOW_SOFTWARE = "1";
    WLR_DRM_DEVICES = "/dev/dri/card0";
    WLR_EGL_NO_MODIFIERS = "1";
    WLR_BACKEND = "vulkan";
    WLR_RENDERER = "vulkan";

    # Mozilla
    MOZ_ENABLE_WAYLAND = "1";
    MOZ_DISABLE_RDD_SANDBOX = "1";

    # Nvidia
    LIBVA_DRIVER_NAME = "nvidia";
    __GLX_VENDOR_LIBRARY_NAME = "nvidia";
    GBM_BACKEND = "nvidia-drm";
    __VK_LAYER_NV_optimus = "NVIDIA_only";
    __NV_PRIME_RENDER_OFFLOAD = "1";
    NVD_BACKEND = "direct";

    # Fcitx
    # https://fcitx-im.org/wiki/Using_Fcitx_5_on_Wayland
    QT_IM_MODULE = "fcitx";
    XMODIFIERS = "@im=fcitx";
    # GTK_IM_MODULE = "wayland";
    # GTK_IM_MODULE = "fcitx";
    SDL_IM_MODULE = "fcitx";
    GLFW_IM_MODULE = "ibus";
    INPUT_METHOD = "fcitx";
    CUDA_CACHE_PATH = "$XDG_CACHE_HOME/nv";

    # Other Wayland
    GDK_BACKEND = "wayland,x11,*";
    SDL_VIDEODRIVER = "wayland";
    CLUTTER_BACKEND = "wayland";
    XWAYLAND_NO_GLAMOR = "1"; # Gamescope
    ANKI_WAYLAND = "1";
    XDG_SESSION_TYPE = "wayland";

    # Other
    GTK_USE_PORTAL = "1";
    DIRENV_LOG_FORMAT = "";
    SSH_AUTH_SOCK = "/run/user/1000/keyring/ssh";
  };
}