Built-in JSON Support in Erlang OTP 27

Erlang OTP version 27 introduces native support for JSON encoding and decoding, affecting all apps running on Erlang, Elixir, and Gleam. This new feature removes the necessity for third-party libraries like Poison or Jason, which were previously required to handle JSON in these languages. The video demonstrates how to utilize the new JSON capabilities in OTP 27 with basic encoding and decoding examples. It also touches on the technical details such as efficiency through the use of IO data for encoding and the intricacies of decoding methods with different arities. Although this isn't a complete drop-in replacement for existing solutions in frameworks like Phoenix yet, it is a significant step toward a more integrated JSON handling in the BEAM ecosystem.