Five books, two readers, no hurry. Check in whenever you feel like it. There is no wrong pace and nothing here is keeping score.
The sky fills in as you read. It only ever goes up, so there is nothing to fall behind on.
Change these any time; it updates for both of you.
Suggestions, not assignments. Tap your name whenever you finish one and log how it went. Slide a week later and the rest simply slides with it.
These arrive on their own as you go. Nothing to claim, nothing to lose.
Tap one whenever it happens to you. Purely for the joy of being seen.
Rough dates. Move them freely, that is what phones are for.
Open the book you just finished. Bring a drink.
A backup, in case syncing is ever down. Ignore it otherwise.
Copy this and text it over. Whoever receives it pastes it in and loads it, and their board matches yours exactly.
There is no behind. Move a week, refill your glass, carry on. The books will wait, and so will the two of you.