I built an AI writing tool for authors as a solo dev from Nigeria — here's how

I've spent years in self-publishing and one thing always slowed me down — writing book descriptions, finding keywords, and crafting back cover copy.
So I built PublishAI.
It's a free AI-powered web app that generates:

• Book descriptions
• Title and subtitle ideas
• Amazon KDP keywords
• Back cover copy All in seconds. Just enter your book topic, pick a genre, add keywords, and click generate. The stack:
• Frontend: HTML, CSS, Vanilla JS
• Backend: Node.js + Express
• AI: Groq API (llama-3.3-70b-versatile)
• Hosting: Vercel (free tier) I built this solo from Kaduna, Nigeria while studying at university. No funding, no team — just code and consistency. It's live and free right now: https://kdp-tool-nu.vercel.app Would love feedback from the DEV community — what features would you add?