At the moment I have a prototype built using Raspberry Pi and a small 2.7 inch e-ink display.

I am able to write python programs that can parse a book in text file and write to the e-ink display using a python library that comes with the e-ink manufacturer.

My goal is write a simple GUI so that users can select books they want to read. I have looked into existing GUI library for python but they are too complicated for e-ink display. And, usually these programs are not written for an embedded system in mind. I'd like to write an OS that can go to sleep mode easily when the book is close. The OS also should have low memory, CPU requirement.

I think the Android OS is a good model to follow but maybe an overkill for what I am intend to do with my project. I am looking for suggestions on the approach. I also welcome any recommendations on existing framework, Linux distribution to look into.

Here is more info about my project on Github. Thanks. https://github.com/obicho/ebook