The Immich machine-learning service provides smart search (CLIP),
duplicate detection, facial recognition and OCR (text search in
images) for an Immich server.  It is a FastAPI application that
executes ONNX models with onnxruntime on the CPU.  Models are
downloaded automatically on first use into the cache directory.

The service listens on port 3003 by default and is consumed by
www/immich; point the Immich server at it via its machine-learning
URL setting.