At first I thought about running it inside termux but then I found the SMS forwarding apk which I linked in the post so I chose the easier way.

I chose flask because it’s very easy to create APIs using flask. I also tried to make the API using Java but I couldn’t figure out how to package it and host it on my server

Good question.

• I am not GreyTechno. I have just used an apk made by them to forward messages to my server.
• I got it when I went for a tour, I had to get an SIM from there because the SIM I have doesn’t work there. However since I am back home I no longer need that SIM so I thought let’s do some experiments with it.
• basically to create throwaway accounts like we use temp mails.

It’s supposed to be used to create throwaway accounts. Or to give a number for random sites which you don’t care about.

Sorry I have chosen duckdns as a domain provider… It gives some errors sometimes

You can try to reload it a few times, it will load eventually.