Depending on other services

I mentioned how some services like connmand and bluetoothd require D-Bus. D-Bus is a message system bus that enables publish-subscribe interprocess communication. The Buildroot package for D-Bus provides a system dbus-daemon and a reference libdbus library. The libdbus library implements the low-level D-Bus C API but higher-level bindings to libdbus exist for other languages like Python. Some languages also offer alternative implementations of the D-Bus protocol that do not depend on libdbus at all. D-Bus services such as connmand and bluetoothd expect the system dbus-daemon to already be running before they can start.

Start dependencies

The official runit documentation recommends using sv start to express dependencies on other services under the control of runit. To make sure D-Bus is available before connmand starts, you should define your /etc/sv/connmand/run accordingly:

#!/bin/sh
/bin/sv start /etc/sv/dbus > /dev/null || exit 1
exec /usr...