GitHub - koreader/koreader: An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Cervantes, Kindle, Kobo, PocketBook and Android deviceshttps://github.com/koreader/koreader
Since my Kindle Paperwhite is not updated anymore and I want to leave Amazon as much as I can, I am going to try KOReader to read my ebooks from now on