I want to write on my blog not only about science and code, but also about popular open source. Because it's fast, cool and saves time.
Among the popular chats where you don’t even need to have a phone number is mail. An old, proven messenger, but it hasn’t failed for years.

Besides the fact that it is a good service with guaranteed delivery, like Kafka. It is also an optimally sophisticated instrument. Nothing extra.
Messages are stored in a secure service (modern writing stack - Java). Everything is thought out to the smallest detail and doesn't take up much space in the memory of your computer.

• By properly completing your signature, Google account, photo and personal information, you can make a good impression on your employer/partner with one letter
• In letters, you can support threads, reply addressing, and even adjust common documents during correspondence by attaching files
• It doesn't take as long as Zoom, because you're alone, opening the email when it's convenient. And compose your answer in a comfortable environment. It's nice
• You can return to letters as needed, and there is no need to put them in spam. No messenger will allow you to do this (archive != spam)

Artificial intelligence has learned to write letters and replace people in communication, but it doesn’t work that way in a career. The work of a programmer requires logic and sequence of actions, so it’s nice when the letter resembles human speech with personal touches, and not a reply from a machine.