Проектирование API
https://proglib.io/p/21-luchshiy-metod-vyvedet-vashi-navyki-proektirovaniya-api-na-novyy-uroven-2021-04-29
BY Python. Собеседование. Книги.
Telegram is a free app and runs on donations. According to a blog on the telegram: We believe in fast and secure messaging that is also 100% free. Pavel Durov, who shares our vision, supplied Telegram with a generous donation, so we have quite enough money for the time being. If Telegram runs out, we will introduce non-essential paid options to support the infrastructure and finance developer salaries. But making profits will never be an end-goal for Telegram.
telegram from jp