Show HN: I vibecoded a 35k LoC recipe app
tomblomfield Wednesday, April 02, 2025
Over the last 2-3 weeks, I vibecoded the recipe app that I always wished existed - recipeninja.ai . It now includes a fully interactive voice assistant so you don't need to get your dirty hands over your new iPad when you're cooking.
Background: I’m a startup founder turned investor. I taught myself (bad) PHP in 2000, and picked up Ruby on Rails in 2011. I’d guess 2015 was the last time I wrote a line of Ruby professionally. Last month, I decided to use Windsurf to build a Rails 8 API backend and React front-end app, using OpenAI's realtime API for voice-to-voice responses. Over the last few days, I also used Claude Code and Gemini 2.5 Pro for some of the trickier features. 35,000 LoC later, this is what I built!
The site uses function-calling to navigate the site in realtime as you chat with the voice assistant, which I think is pretty neat.
For the long version, see https://tomblomfield.com/post/778601470234918912/vibecoding-...
I'd love any feedback you have!
Demo video of the voice assistant: https://www.youtube.com/watch?v=kRhVc9D5kcg
Generate and edit new recipes: https://www.youtube.com/watch?v=VwwZF6dHcHg