From the project README: > Thruster also wraps the Puma process so that you can use it without managing multiple processes yourself. This is particularly usefu

From the project README: > Thruster also wraps the Puma process so that you can use it without managing multiple processes yourself. This is particularly useful when running in a containerized environment, where you typically won't have a process manager available to coordinate the processes. Instead you can use Thruster as your CMD, and it will manage Puma for you.