Earlier quoted context omitted.
Why don't you just make that app for iOS/Android and let food truck owners download it? I know that is a useless thing to suggest given your intent but I think it's equally useless for food truck owners to want to build their own app. There must be a better range of use cases.
You were flagged but this is a great question. I think the more useful ability for the food truck operator is the ability to modify the software their business runs on, not the ability to build it from scratch. Imagine everything on everyone's desk was bolted to it, and you could only choose between a few desk packages. Someone comes along and says "people should be able to put together their own desk packages!" But…
I think we do. Excel, and the various systems implemented on top of it. To my understanding systems built on top of Excel are used to run all sorts of things, even live hardware, because it's so approachable and easy to modify.
Perhaps Eve can be 'sold' to the industries that rely on Excel. First the project can just add @excel database....