aiosqlite, cryptography, hyperliquid-python-sdk

Dockerfile

@@ -1,13 +1,20 @@
 FROM python:3.11-slim
 
-# System deps
+# System deps needed for native extensions:
+#   gcc, libpq-dev  → asyncpg (Postgres driver)
+#   libffi-dev      → cryptography
+#   build-essential → general C compilation fallback
+#   curl            → healthcheck probe
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    gcc libpq-dev curl \
+    gcc build-essential libpq-dev libffi-dev curl \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
-# Install Python deps first (layer cache)
+# Upgrade pip + install wheel first so pre-built wheels are preferred
+RUN pip install --no-cache-dir --upgrade pip wheel setuptools
+
+# Install Python deps (separate layer for cache efficiency)
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt