Does darktable support multiple photo libraries like multiple Catalogs in Photoshop Elements? My purpose is to keep my family and hobby photos separate to ease management and keep the library size manageable.
You can start darktable from the commandline with the options
--cachedir (and several others) to work with different libraries and settings. See darktable 4.0 user manual - darktable for detailed information.
Library size is normally not a problem. I have about 30K images in one library, I know about people having more than 100K.
why have several catalogs when you can filter with keywords?
Or just use a directory structure with two top-level subdirectories
The directory structure suggested by elstoc works for my purpose.
Just tried it, looks like it works.
Thanks for the pointer.