I think it would be nice if only put as much of the path as is necessary into the runApp call. We do this now for devtools::load_all (you can see the code in BuildPresenter, find usages of devtoolsLoadAllPath_). That implementation is a bit complicated because I am attempting to only call the server when I need to, that's probably a premature optimization. I'll merge the PR without this change but I think you should add it to the list.