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+# ============================================================
+# Fish Speech API Server — HuggingFace Spaces Dockerfile
+# Target: GPU Space (T4 or better) on HuggingFace
+# Port: 7860 (required by HF Spaces)
+# ============================================================
+
+FROM nvidia/cuda:12.6.1-devel-ubuntu22.04
+
+# HF Spaces runs containers as UID 1000
+ARG USERNAME=user
+ARG USER_UID=1000
+ARG USER_GID=1000
+
+ENV DEBIAN_FRONTEND=noninteractive \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    # Where the model will be downloaded at startup
+    MODEL_DIR=/app/models/fish-speech-1.5 \
+    # HF Spaces requires the app to bind to 7860
+    APP_PORT=7860 \
+    APP_BIND=0.0.0.0 \
+    APP_WORKERS=1
+
+WORKDIR /app
+
+# ── System dependencies ──────────────────────────────────────
+RUN apt-get update -q && \
+    apt-get install -fyq \
+        bash git cmake curl \
+        portaudio19-dev \
+        python3 python3-pip \
+        time && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# ── Python dependencies ──────────────────────────────────────
+# Clone the repo so we get the submodule (fish_speech) too.
+# We pin to main; swap for a specific commit/tag for reproducibility.
+RUN git clone --recurse-submodules \
+        https://github.com/EvilFreelancer/docker-fish-speech-server.git \
+        /app
+
+RUN pip install --no-cache-dir -r /app/requirements.txt && \
+    pip install --no-cache-dir "huggingface_hub[cli]"
+
+# ── Non-root user (required by HF Spaces) ────────────────────
+RUN groupadd --gid ${USER_GID} ${USERNAME} && \
+    useradd --uid ${USER_UID} --gid ${USER_GID} -m ${USERNAME} && \
+    mkdir -p /app/models && \
+    chown -R ${USER_UID}:${USER_GID} /app
+
+USER ${USERNAME}
+
+# ── Entrypoint: download model on first run, then start API ──
+# HF Spaces GPU Spaces provide CUDA at runtime via the host driver.
+# The model download is deferred to startup so the Docker image
+# itself stays small and HF caching can be reused across restarts.
+COPY --chown=${USER_UID}:${USER_GID} entrypoint_hf.sh /app/entrypoint_hf.sh
+RUN chmod +x /app/entrypoint_hf.sh
+
+EXPOSE 7860
+
+ENTRYPOINT ["/app/entrypoint_hf.sh"]

entrypoint_hf.sh

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+#!/bin/bash
+# entrypoint_hf.sh — runs inside the HF Spaces container at startup
+
+set -e
+cd "$(dirname "$0")"
+
+MODEL_REPO="fishaudio/fish-speech-1.5"
+MODEL_DIR="${MODEL_DIR:-/app/models/fish-speech-1.5}"
+
+echo "==> Checking for model at ${MODEL_DIR} ..."
+if [ ! -f "${MODEL_DIR}/model.pth" ] && [ ! -f "${MODEL_DIR}/config.json" ]; then
+    echo "==> Model not found. Downloading from HuggingFace Hub..."
+    huggingface-cli download "${MODEL_REPO}" \
+        --local-dir "${MODEL_DIR}" \
+        --local-dir-use-symlinks False
+    echo "==> Model download complete."
+else
+    echo "==> Model already present, skipping download."
+fi
+
+APP_PORT="${APP_PORT:-7860}"
+APP_BIND="${APP_BIND:-0.0.0.0}"
+APP_WORKERS="${APP_WORKERS:-1}"
+
+echo "==> Starting Fish Speech API on ${APP_BIND}:${APP_PORT} ..."
+exec uvicorn \
+    --host "${APP_BIND}" \
+    --port "${APP_PORT}" \
+    --workers "${APP_WORKERS}" \
+    main:app