Sure at the end of the day the only thing that matters is if my use case is handled, but after decent effort I was unable to determine that for myself. The problem is that there are a lot of different things that have the properties you've described, and several of my key requirements are not entailed by your description.
As an example, I remember seeing a product that takes a command line tool, inspects the available flags, and produces a UI that lets you fill them in visually. I believe this has all the properties that you have used to describe your product (turns backend code into a tool anyone can use), but I suspect that Onu is different in some essential ways.
Though fwiw for my personal use case I'm hoping for something lighter-weight. It's great you offer a self-hosted option (exposing this stuff to a third party is a non starter for me and I suspect many others) but "self-hosting" connotes mental burden to me, vs other options in the space which are not exactly "hosted" in any sense. I think maybe I'm not really your target customer.
Anyway, I wish you luck! I'm happy to see more competition in the space.