Signing in picks your site
Zarla now picks your site when you sign in, so its pages are ready without choosing it first.
With one site, you usually land on its overview. My Sites still comes first when something there is waiting for you, like an invite or your launch video. With more than one, you usually start on My Sites with one already chosen: the one this browser remembers from last time, otherwise the one with the most recent changes.
Your site's name, at the top of the sidebar or of the screen on a phone, opens a menu to switch sites, see all your sites or start a new one.