@Sandra, I think this might be possible; not easy, but possible.
My Pinephone CE, 2GB RAM, runs Deltatouch fine. Really long chats get a bit slow to load. This is hardly straightforward, but if you can get Droidian or mobile Linux on your InkPalm (not hopeless, as Xiaomi and Pine64 tend to use similar processors), then you might be able to install using the DeltaTouch’s Mobian/Droidian installer (which is in my experience very quick and easy to use).
If you don’t want to mess around that much, that is entirely fair. Maybe someone else will show up in this thread to tell us how they did something similar.