I built a free multilingual web app for Chinese Purple Star Astrology (Zi Wei Dou Shu). You enter your birth details and it draws the chart with its 12 palaces and 14 major stars, then an AI model writes a short plain-language introduction to what it sees. The chart and the short reading are free; longer detailed readings are a paid option. Available in English, Simplified and Traditional Chinese, Japanese, Korean and Vietnamese. Sharing it here because the AI part was the interesting bit: the model needed a small reference of the traditional terms to avoid drifting into Western astrology vocabulary.