Wikimedia Apps/Synced Reading Lists/Sync stories

Trying to organized by four dimensions: opt-in status, number of devices, number of accounts and whether the user is "cross OS".

1 device, 1 account

- activation

- device full

- slow/interrupted connection

- de-activation

- API limit (total saved articles)

- API limit (maximum number of lists)

- API limit (maximum number of saved articles in a single list)

1 device, 2+ accounts

- logging out

- switching accounts

2 or more devices, 1 account

- activation

-- merge conflicts

- additional device activation