.includeIPv6(false)
      .build()
  }

  private fun buildCryptoSx(bootstrapClient: OkHttpClient): DnsOverHttps {
    return DnsOverHttps.Builder()
      .client(bootstrapClient)
      .url("https://doh.crypto.sx/dns-query".toHttpUrl())
      .includeIPv6(false)
      .build()
  }

  @JvmStatic
  fun providers(
    client: OkHttpClient,
    http2Only: Boolean,
    workingOnly: Boolean,
    getOnly: Boolean,