Security System with: OH2, HomeMatic and Sonos

Hi community,
I plan to create a home security system with OH2, HomeMatic-Contacts and Sonos Player.
What I would like to achieve is, that based on rules (presents, time, switch(Alarm active/disabled), contact(open/closed),…) in case, a file (e.g. mp3) should be played on the Sonos (Play1)

Questions:
-are there already some good “best practice” out there for OH2 and SecuritySolution configs?
-do I need to placed the mp3-files on a e.g. webserver, or can i pass the files from local file-path?
-most important: can someone provide me some working item/rule configuration example, in order to play a file on Sonos based on a rule?

thanks, br
Martin

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