This is an alpha quality prerelease. Not everything works, but some functionality exists. Namely, you can:
Lemmy posts can be read (defaulting to "lemmy.ml" for Guest)
Logging in should work, via ...
Detail in the link. Crash reporting should make this a lot easier now though!
Got it working, i was using email in username field. Tried using username now and not its opening. Comments colapse not working as of now. Hope that works. Also after turning on community in tabs option(Setting > General > Display > View Type) set to Subreddit tabs, all posts only display Swipe navigation help screen.