Just an FYI, the max you can earned by listening is 60 sats / day. Also the app is still a bit buggy.

I was able to earn up to 500 sats/day before the recent update, now it's dwindled down to 30-60 sats tops.

the problem with getting into the audiobook market is competing with audible, so many titles are audible exclusives. would be great if it works out though.