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@@ -2,33 +2,35 @@
 FROM pytorch/pytorch:2.5.1-cuda12.1-cudnn9-runtime
 
 ENV PYTHONUNBUFFERED=1 \
-    PIP_DISABLE_PIP_VERSION_CHECK=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    PIP_PREFER_BINARY=1
 
 WORKDIR /app
 
-# System deps
+# System deps + build toolchain
 RUN apt-get update && \
-    apt-get install -y --no-install-recommends ffmpeg libsox-dev git && \
+    apt-get install -y --no-install-recommends \
+      ffmpeg libsox-dev git \
+      build-essential cmake ninja-build pkg-config && \
     rm -rf /var/lib/apt/lists/*
 
 # Get GPT-SoVITS source
 RUN git clone --depth 1 https://github.com/RVC-Boss/GPT-SoVITS.git /app
 
-# Python deps (repo's + API server)
+# Python deps
 RUN pip install --upgrade pip && \
     pip install --no-deps --no-cache-dir -r /app/extra-req.txt && \
     pip install --no-cache-dir -r /app/requirements.txt && \
     pip install --no-cache-dir fastapi uvicorn soundfile huggingface_hub ffmpeg-python
 
-# Pre-download essential support models (Chinese frontends & encoders, sv/*)
+# Pre-download essentials
 COPY download_support_models.py /app/download_support_models.py
 RUN python /app/download_support_models.py || true
 
-# Put your weights and reference audio into image
+# Your weights & reference audio
 COPY weights/ /app/pretrained_models/shantianliang/
 COPY reference_audio/ /app/reference_audio/
 
 EXPOSE 7860
 
-# Start REST API v2 (FastAPI)
 CMD ["python", "api_v2.py", "-a", "0.0.0.0", "-p", "7860", "-c", "GPT_SoVITS/configs/tts_infer.yaml"]