This is another Java framework you can learn in 2023. Micronaut is a modern, JVM-based, full-stack framework for building modular, easily testable microservice and serverless applications.

It’s a polyglot framework and allows you to create an application using Java, Kotlin, or Groovy. Some of the key talking points of Micronaut are reduced startup time, blazing-fast throughput, and minimal memory footprint.

If you want to learn more about MicroNaut, you can also check out Learn Micronaut — cloud-native microservices with Java course on Udemy. There are not many courses but this one and MicroNaut documentation are sufficient to start developing applications with MicroNaut.