It's coming for my hands

Help, y'all. My PsA is apparently deciding that my fingers are next on its hit list. I am trying to address this whole thing of course with my injections and nsaids, but I wanna ask.

What hacks or tools might start to be useful or necessary if this gets worse?

Are there exercises you've found useful for retaining mobility and strength? (I already use putty and do basic hand tendon glides)