✨ Goal in One Sentence

Use a VPS + ChatGPT API to quickly build and deploy your own AI-powered service, wrap it into a chatbot, web app, or API, and start your side project or SaaS journey.

🧱 What You Need

Item	Recommended Options
VPS Server	LightNode / Vultr/ DigitalOceanS
Operating System	Ubuntu 22.04 LTS
Language / Framework	Python + FastAPI / Node.js + Express
Frontend (optional)	Chat UI / Next.js / React / Vite
ChatGPT API Key	Or use OpenRouter / Claude / Mistral
SSL Certificate	For HTTPS (recommended for public access)