This could be the seed of something fantastic, IMHO.
I'm trying to gain some bulk, and was using the "leading" product (MFP), but stopped because their data is: absolutely filthy via redundant user-submitted info, oriented towards companies rather than simple fresh home-cooking, poor handling of units (should be agnostic with internal conversion), and has friction at every layer of the experience.
Even with basically no features, this is probably easier to adapt into something that I might use.
Part of the problem with calorie/nutrition tracking is that use-cases conflict. I guess this could either become more opinionated, have multiple opinionated structures built on top of it, or just stay lean.
Interested in seeing where this goes, would follow a dev blog.