For permissive open source licenses, for example Apache 2.0, is it sufficient to include a readable copy of the license.txt/NOTICE/attribution file with the object code in the memory of the device? Or, is the requirement to provide a copy of the license/NOTICE/attribution in a place where a typical end user would see it? For example, a manual for the device.
So many examples I find are about forward facing software that has a UI. What about devices that don't have a user interface (or have a minimal UI).
If something has to be provided in the manual. Exactly what has to be provided? A full copy of the license? If there are 50 open source components, do I really need to provide the full text of 50 open source licenses? Would it be sufficient to provide a links to the licenses on the Internet?