What is pokemon crystal remake?

As an AI language model, I do not have knowledge or information about activities that happened after October 2021. However, the Pokemon Crystal Remake is a fan-made game that is based on the original Pokemon Crystal game, which was released in 2000. The remake includes updated graphics and gameplay mechanics, as well as new features and content. Some of the notable changes in the remake include the addition of new Pokemon, improved battle animations, and an online multiplayer mode. The game is not an official release from Nintendo or The Pokemon Company, so it is not available on official platforms like the Nintendo Switch. Instead, it can be downloaded and played on fan-made platforms or emulators.