Describe the medicaltourism.ai stack, and note which tools are paramount to its optimal performance.

My stack is LangChain, Pinecone, Vercel, and Next.js for web app development—and that’s basically it. I didn't have much machine learning AI experience before this. I'm actually a coding bootcamp graduate. I don't even have a CS degree or a degree. That's probably the whole cool thing about this, which is that AI is being democratized.