diff --git a/Dockerfile b/Dockerfile
index 2fc2c4a..cb9b2e9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,14 +2,17 @@ FROM python:3.10-slim
 
 WORKDIR /app
 
+# System dependencies for Postgres & builds
 RUN apt-get update \
  && apt-get install -y gcc libpq-dev --no-install-recommends \
  && rm -rf /var/lib/apt/lists/*
 
+# Python dependencies
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Copy application code
 COPY . .
 
+# Expose Flask port
 EXPOSE 3000
-CMD ["gunicorn", "-b", "0.0.0.0:3000", "app:app"]