[replying on the list] Hi, On 12/22/18 5:15 PM, jack(a)microfx.de wrote: It's a file where I keep all changes that are specific to a particular Raspi box, so that my service files are generic. If you're only interested in your one studio machine, you might as well not use it and hardcode the necessary jack options below. Caveat: while you might think systemd can parse shell syntax, it really doesn't, its parser is very simple. So you have to make to with simple KEY=value pairs, even multiline variables will make it choke. -- Jörn Nettingsmeier Tuinbouwstraat 180, 1097 ZB Amsterdam, Nederland Tel. +49 177 7937487 Meister für Veranstaltungstechnik (Bühne/Studio), Tonmeister VDT http://stackingdwarves.net