@cranky welcome to the siduction forum! FYI, once you have it installed, there are very few aspects of your siduction system and configuration that don't follow the same as a pure Debian system, so you should normally first check for Debian wiki guidance (which is extensive) and if it concerns the desktop environment, the Arch wiki also often has what you need. As you have found, the siduction manual is very good for siduction-specific items, and finally this forum is a good last resort when the other sources don't seem to address your issue. Again, welcome!