Point, learn, speak.
This version runs from a single index.html file, uses
browser-side object detection, stores your flashcards locally, and
speaks the Mandarin word with built-in speech synthesis.
Camera capture
Taking a clear object photo

Use the back camera. It works best when one object is in the photo. Object COCO-SSD is software that spots objects in photos. no API key and no cloud upload.
On smartphone, this opens the camera directly in most browsers.
Current word
Teach the app a better name for this object. Your words stay on this device and replace the built-in name next time.
Flashcard deck
Your cards stay in IndexedDB, storage built into your browser. To export, use the smartphone Share sheet, the smartphone menu for sharing or saving. If it is not there, the app downloads the image.