I said there were a number of frustrations, but that was the driver.
In the new repo format each repo produces a single library/module, and can be versioned as a whole. When I run an application for dev, I can run a given library from a release or from live code (with a dev server serving ES modules from a configured path). This works well when one of the repos is not changing. But I end up developing in a significant number of repos at the same time, so I just configure it to run from live code rather than release for all those libraries i'm working on. This feels like working with a monorepo except I have the hassle of managing commits to all thse repos. Long story short, right now I am working out of the master branch because I screwed up commits. You may have figured out by now my strength is not in dev ops.