[zupo]

Slack is mostly used as a placeholder in the name. It's trivial to change the code to send the webhook anywhere: https://github.com/teamniteo/sms2slack/blob/master/src/esp32...

[mikece]

Yes, but the limitation of Twillio VoIP numbers is a show-stopper. I can already auto-forward Twilio and Google Voice SMS messages to a team/distribution list. Getting real carrier-issued numbers to do this is the larger challenge.

[zupo]

Which is exactly what the device on the link does. It's using a real SIM card to receive 2FA codes and then forwards it to wherever you configure it to.