The |+| button is only activated if you have multiple nodes selected. Clicking it will add a new node thats placed inbetween the other nodes. Like A->B, (then click), will result in A -> new -> B. There's a html title on that button but you have to hover for a second to get the details.
Sorry for the json bug :/. That probably happened when serializing to the url. I'll have to try to reproduce it. Maybe I allowed you to introduce a cyclic connection or something.
For Scaffoldly:
How do you see it as compared to Netlify or Github pages for folks like myself just deploying a static site? At some point I'll build a backend but I don't need it yet.
Is there a way I can give some feedback without altering my aws/github accounts?
Thanks again for the detailed feedback.