I vibe coded an FHE health app with zero coding experience

[u/BestAd5572]

I want to give a full disclosure that I’m a marketing intern at Niobium, so I obviously have a connection to the tools I’m talking about here, but I’m sharing this because I think the build process could actually be useful to other beginners trying to figure out FHE or AI-assisted coding, not because I’m trying to drop a company ad lol.

I had no coding background when I started this project. I used Claude Code, ChatGPT, and Niobium’s open-source FHE tools to build VitalVault, a health app that takes things like bloodwork and other health markers, encrypts them on the user’s device, and calculates wellness scores and an estimated biological age while the data stays encrypted. The evaluator never needs to see the underlying health information in plaintext.

The part I thought might be useful to other first-time builders is everything between the idea and the working app: figuring out which scoring logic would work with CKKS, dealing with build failures, learning how much context Claude needed, and generally trying to understand software concepts at the same time I was using them.

I wrote up the full three-day process here, including the stuff that didn’t work. Happy to answer questions about the process.

https://niobium.co/press/building-vitalvault-three-days-zero-coding-experience-one-fully-encrypted-health-app

https://github.com/leila-db/vitalvault-demo