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might well as gab about some bits: I'll put more in my running week notes https://www.jacky.wtf/weeknotes/ (one's due next Monday) but so far:

* currently building koreader from source b/c it's easy
* mocked a little wrapper over `calibredb`
* overengineered the data format (but will shave parts off)

ideally by monday, I can show something (but god, my library is big)