This is a very experimental tool designed to detect when a home security system is disarmed and check that it has been disarmed by one of a known list of persons, by checking for the presence of a known device (e.g. smart phone) that uniquely identifies that individual. If the event that no such device can be found, an alert can be sent.
See also: high-level architecture diagram
PRs are very welcome, but for any big changes or new features please open an issue to discuss first.