core/homeassistant/components/nightscout/strings.json

{
  "config": {
    "abort": {
      "already_configured": "[%key:common::config_flow::abort::already_configured_device%]"
    },
    "error": {
      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
      "invalid_auth": "[%key:common::config_flow::error::invalid_auth%]",
      "unknown": "[%key:common::config_flow::error::unknown%]"
    },
    "step": {
      "user": {
        "data": {
          "api_key": "[%key:common::config_flow::data::api_key%]",
          "url": "[%key:common::config_flow::data::url%]"
        },
        "data_description": {
          "api_key": "Optional; only use it if your instance is protected (auth_default_roles != readable).",
          "url": "The address of your Nightscout instance. For example: {example_url}."
        },
        "title": "Enter your Nightscout server information."
      }
    }
  }
}