diff --git a/bin/bootstrap b/bin/bootstrap
new file mode 100644
index 0000000..8437b2f
--- /dev/null
+++ b/bin/bootstrap
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# Install Pi-side system packages required by the test projects.
+# Idempotent — safe to re-run. apt-get only installs what's missing.
+
+set -euo pipefail
+
+PI_USER="${PI_USER:-pi}"
+PI_HOST="${PI_HOST:-192.168.50.115}"
+PI_PASS="${PI_PASS:-assistant}"
+
+sshpass -p "$PI_PASS" ssh -o StrictHostKeyChecking=accept-new \
+  "$PI_USER@$PI_HOST" \
+  "echo '$PI_PASS' | sudo -S -p '' apt-get update -qq && \
+   echo '$PI_PASS' | sudo -S -p '' apt-get install -y --no-install-recommends libportaudio2 libsndfile1 python3-venv" \
+  2>&1 | sed -E "s/${PI_PASS}/***/g"