The self-hosted version of this project seems to rely on email-to-sms gateways, which many carriers have started to shut down [1]. Do you know if it's still rel

The self-hosted version of this project seems to rely on email-to-sms gateways, which many carriers have started to shut down [1]. Do you know if it's still reliable? It looks like the last commit was 2+ years ago. [1] https://www.att.com/support/article/wireless/KM1061254/ https://www.att.com/support/article/wireless/KM1061254/