libdbus-1-3 - 1.12.20-0+deb10u1 main

D-Bus is a message bus, used for sending messages between applications.
Conceptually, it fits somewhere in between raw sockets and CORBA in
terms of complexity.
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D-Bus supports broadcast messages, asynchronous messages (thus
decreasing latency), authentication, and more. It is designed to be
low-overhead; messages are sent using a binary protocol, not using
XML. D-Bus also supports a method call mapping for its messages, but
it is not required; this makes using the system quite simple.
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It comes with several bindings, including GLib, Python, Qt and Java.
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The daemon can be found in the dbus package.