Telegram as an Authentication Provider

Hello Grist team!
Please consider using Telegram as an authentication provider.
Looking for a way to simplify using grist (refusal to use third party IdP as Authentik or another) how to make Telegram as IdP provider?
Links Telegram API

  1. User Authorization
  2. Telegram Login Widget
  3. Telegram Login for Websites

The implementation of this will allow easy integration Grist as Web Apps for Bots