diff --git a/Dockerfile b/Dockerfile
index 23f7627..36c9180 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,13 +1,17 @@
 # Load Node.js
-FROM --platform=$BUILDPLATFORM node:24.12.0-bullseye-slim
+FROM --platform=$BUILDPLATFORM node:20-bullseye-slim
 
 # Set working directory
 WORKDIR /app
 
+# Run as root
+USER root
+
 # Install packages
 RUN apt-get update
 RUN apt-get install -y build-essential
 RUN apt-get install -y python3
+RUN apt-get install -y libsqlite3-dev
 RUN rm -rf /var/lib/apt/lists/*
 
 # Copy package.json
@@ -19,6 +23,11 @@ RUN npm ci --unsafe-perm
 # Copy source
 COPY ./src ./
 
+# Copy default memory
+RUN if [ ! -s /app/memory.db ]; then \
+    cp /app/memory.default.db /app/memory.db; \
+  fi
+
 # Create replied_ids.json
 RUN touch replied_ids.json
 
diff --git a/src/memory.db b/src/memory.default.db
similarity index 100%
rename from src/memory.db
rename to src/memory.default.db