So, it looks like you can’t sent development links to another computer for a client to work on a site Correct? Because, it is app driven? And, will this change?
You can’t work on the site simultaneously with another person on different computers, but you can share the site by right-clicking on it in the sidebar and going to "Export.
Then, on the other person (or on your other computer) can take that export file and import it into Local simply by dragging and dropping it onto Local’s window.