If you might need to share anything to Windows devices (unlikely), Localsend is much better. Also I think Warpinator couldn't share text (maybe I just didn't see that option or it has been added), but Localsend can do that. But they're not that different.
I personally use KOReader for EBooks. You can download a dictionary on it and it'll tell you the meaning of any words you select. I suggest you give it a try. Oh, and if you wanted to read PDFs MJ PDF is great.
Maybe try delta.chat? I use it, and it's quite good. Just make sure the guaranteed end to end encryption thing is on.
Write. Anything you like. Nonsense, the issues of the world, a memory, a story. Sometimes, things (thoughts/memories) hurt less when written. Then you can burn the paper. Or tear it. Or do nothing with it. But burning it feels so good. It's like burning your sad thoughts.
@QuestionMark
@lemmy.world