daemontools does not support "start service B once service A is up and running", it can only do "start service A before starting service B". For services that t

daemontools does not support "start service B once service A is up and running", it can only do "start service A before starting service B". For services that take a while after starting before they are ready, such as databases, that can be a problem. Traditional sh init scripts were able to handle this as most such services could fork and exit once they were ready, but fork and exit is incompatible with daemontools. Some daemontools clones have ways to handle this, but IIRC daemontools itself does not.