No, no save unfortunately sorry
Got to a point where I overloaded a host and my system melted taking me back to the start, is that the end or should I try again to get past that?
The other thing is if you click on the name of a core, it gives you some more actions you can take.
Wish it was way longer now haha, although it's already been quite a bit of procrastinating :)
It would be nice if you could synchronize the state down to local storage periodically and attempt to restore it upon page load. You could add an explicit "Reset" button to null this out.