RedisGears is a new module for Redis that allows developers to write Python scripts and run them in a full-fledged Python interpreter inside Redis. It enables reactive programming at the database level, allowing developers to process data in real-time without having to spin up client consumers. The module can be used to query data in Redis, perform complex computations, and even launch demanding jobs without blocking the Redis instance. With RedisGears, developers can tap into the full power of Python libraries like NumPy and access their own code inside Redis. The module is still in preview but can already be tried out with a Docker container or by installing it on an open-source Redis server.