watchexec

Watchexec is a tool that runs commands based on file changes. It can be used to automatically run unit tests, linters or other commands after each file change. This can be useful for automating the development process and ensuring that your code is always functional.

Watchexec is very easy to use. Just specify the path to the folder you want to monitor and the commands you want to run when the file is changed. Watchexec will then monitor the folder and run the commands whenever the file is changed.