Using browser local storage is actually less work in my opinion. For the other options, it’s a bit more work but not that much and the end result would be a lot more usable. (Especially with all the QuickStart options now)

My main problem is that business logic Id want to code into the backend would now be coded in the front end. Unless I’m going to throwaway all of this code, that’s going to be significantly more work to unwind. If I’m throwing it away, don’t care about security, and need to support multiple computers connecting then this is a good niche product for me.

There’s nothing wrong with it being designed for this niche. Also, I’m just giving you feedback because you asked for it