I’m looking to build a small entertainment device for use in my offgrid place. I’d like to use it for reading, music and movies. I’d like for it to have low power needs. And for it to carry a varied library.

How would you build such a thing?

My initial idea is to repurpose an android phone, install VLC, and an SD card with pirated video transcoded to 720p, ebooks and mp3s.

Does it make sense to maximize battery life by jailbreaking the phone and disabling background services?

Thanks for your input