The sign-in page exists again

Going to the login page answered with “Page Not Found”. The screens were all built — sign in, create an account, forgotten password, reset — they had simply never been connected to an address. They are now, so arriving from the main app lands you at a sign-in box rather than a wall.

Signing in takes you where you were going

Click through from the main app meaning to open a particular book or studio page, and after signing in that is where you land — instead of back at the shelf, hunting for it again.