Thanks for building and sharing this! As a feature request, which would likely be the decider for me using this, would you please consider an integration into koreader? As far as I know, koreader is the #1 open source app for ereaders. If anyone using their ereader can use this, you can expand your userbase outside of those who just read on mobile. I don't think I'm alone in never wanting to read an actual book with my phone. At any rate, best of luck and great work getting this shipped!
Not quite the same thing, but Vocabsieve (disclosure:my project) can read your KOReader lookup history to generate Anki cards with context and audio. I also feel like reading in your target language is a far better use of your time. Vocabulary is not the only thing you need to learn, you also need to internalize collocations and grammatical structures, which is best done through actual reading.
