static const char *KEY_PROVIDER_NVCTRL_ENABLED = "provider-nvctrl-enabled";
static const char *KEY_PROVIDER_UDISKS2_ENABLED = "provider-udisks2-enabled";
static const char *KEY_PROVIDER_NVCTRL_ENABLED = "provider-nvctrl-enabled";
static const char *KEY_PROVIDER_UDISKS2_ENABLED = "provider-udisks2-enabled";