In the IDE, it is Ctrl-Enter — Save and run the app in developer mode.
However, I just accidentally pressed something I don’t know in the keyboard that open app via public link in the new tab. Anyone know what it is?
Many thanks
Since I’ve started with anvil a few months ago I’ve searched for a shortcut to toggle the line comment and ~2 days ago I’ve pressed by mistake Ctrl + / and worked!
So I suppose that they are preparing something to launch and we’re ruining their party! 
Cheers