requirements.txt

# ── Core API framework ──────────────────────────────────────────
fastapi
uvicorn[standard]
python-multipart

# ── PyTorch CPU-only build (~200 MB vs ~800 MB for CUDA) ────────
# This is essential for fitting in free-tier Docker containers
--extra-index-url https://download.pytorch.org/whl/cpu
torch
torchvision

# ── Image / Video processing ────────────────────────────────────
Pillow
opencv-python-headless

# ── Scientific computing ─────────────────────────────────────────
numpy
scipy
scikit-learn

# ── Database ORM ─────────────────────────────────────────────────
sqlmodel
psycopg2-binary

# ── Misc utilities ───────────────────────────────────────────────
easydict

# ── HuggingFace Hub (for auto-downloading model weights) ─────────
huggingface_hub