Whiz was created to support the development of Metatype [1] and an example of the configuration file can be seen on GitHub [2]. At its core, every process lives inside an actor [3] and uses message passing for controls, logs and reloads. Because of its architecture and tabs, it offers an interesting alternative to Concurrently [4] when there are a lot of parallel processes.

[1] https://metatype.dev [2] https://github.com/metatypedev/metatype/blob/main/whiz.yaml [3] https://actix.rs/docs/actix/actor/ [4] https://github.com/open-cli-tools/concurrently