Telegram is a proprietary messenger that gained some popularity recently. It has FOSS client, API and binding for the API. It has private chats, group chats and "channels". Channels are content feeds.

RSS allows users to access updates to online content in a standardized, computer-readable format.

Telegram requires an account to read channels. Creating an account requires you to give Telegram your phone number. Unfortunately, some good content is being posted to Telegram channels. But it is unacceptable for some people to give phone number to Telegram, which is ran by some Russian billionaires, who might turn out to be evil. Also, RSS/Atom is standardized and has a lot of great readers.

The idea is to create a FOSS gate that would allow to convert Telegram channels to RSS/Atom. The gate will be hosted somewhere.

UI: A user posts channel name into input, presses "submit" and URL with RSS/Atom feed is being created. Posts from channels should be fetched in the background, for example, with cron jobs