VietProHub Blog
Scoring Japanese Pronunciation on the Phone: DTW, Rust, and the Bugs That Made It Real
No audio leaves the device: how Kaiwa Coach scores mora timing and pitch with a Rust engine behind Dart FFI — and the three bugs that nearly made a working engine look broken.
9/24/20264 min
VietProHub Blog
RAG on a Raspberry Pi: Cited Answers From a $100 Board
Chunking, MiniLM embeddings, FAISS, hybrid rerank, and URL-validated citations — what it actually takes to run retrieval-augmented generation locally for financial research.
9/2/20263 min
VietProHub Blog
Edge AI Surveillance: Raspberry Pi, YOLO, MQTT, and the Parts Everyone Forgets
SentinelVision Edge in production shape: why inference lives on the camera node, how MQTT topics stay debuggable, and the TURN/stream-health items most IoT builds discover far too late.
8/27/20263 min