My question is basically the title. I'm making my own Puppy Linux remaster and it already has a .PDF reader for it that is very small. I think it's called Evince? It has a native GTK UI and starts in a second, uses very little RAM and CPU. Now I need a .EPUB reader. I've seen a couple different .EPUB reader apps out there for different distros, and they all the .EPUB readers seem to fall into a couple categories:

• humongous JS monstrosity that runs inside a web browser OR packages an entire chrome copy into it with a bloated dependency hell

• something else that is humongous and has dependency hell but non secretly a massive web app inside a web browser under the hood.

So is there some third option that's small and light and easy to install like the normal .PDF reader? I'm just asking because I honestly didn't find one that fit the bill.