https is mandatory but it doesn't mean you MUST set it up completely. You can use more more simple ways, let me explain: You can connect your localhost server on your own PC or mac or linux machine, to telegram severs without setting any SSL Certificates. read more
Telegram, the supposedly secure messaging app, has over 100 million users. You might even be one of them. If you are, you should probably stop using it right now. Here’s the unfortunate truth about Telegram: it’s not as secure as the company’s marketing campaigns might lead you to believe. read more