diff --git a/agent-queue/demo/start-fleet.example.sh b/agent-queue/demo/start-fleet.example.sh
index e7a7030..169ffe7 100755
--- a/agent-queue/demo/start-fleet.example.sh
+++ b/agent-queue/demo/start-fleet.example.sh
@@ -32,6 +32,11 @@ FLEET_TOKEN_FILE="${FLEET_TOKEN_FILE:-$SB/.token}"
 PRODUCTS="${PRODUCTS:-lysnrai chronomind mindlyst nomgap}"
 AGENT_QUEUE_MAX="${AGENT_QUEUE_MAX:-3}"
 LONGRUN_ALIAS="${LONGRUN_ALIAS:-$HERE/../../aliases/_longrun.alias}"
+# PR mode: where the product repos are checked out, so a job's `repo` resolves to
+# a local checkout and the factory opens a PR off a git worktree. Set FLEET_PR=0
+# to run plain (no PR) jobs in $SB instead.
+FLEET_PR="${FLEET_PR:-1}"
+REPO_BASE="${REPO_BASE:-$(cd "$HERE/../../.." && pwd)}"
 
 [ -f "$AQ" ] || { echo "agent-queue.sh not found at $AQ (set AQ=)"; exit 1; }
 [ -s "$FLEET_TOKEN_FILE" ] || { echo "fleet token not found at $FLEET_TOKEN_FILE (set FLEET_TOKEN_FILE=)"; exit 1; }
@@ -55,6 +60,8 @@ for p in $PRODUCTS; do
     AQ_FACTORY_ID="mac-$p" \
     AQ_FLEET_GATE=1 \
     AQ_FLEET_LEASE_RENEW_SEC=30 \
+    AQ_FLEET_PR="$FLEET_PR" \
+    AQ_FLEET_REPO_BASE="$REPO_BASE" \
     "$AQ" run
   echo "----"
 done
@@ -69,6 +76,13 @@ done
 #                             coordinator's 90s stale threshold, or a healthy
 #                             factory flaps to "stale"/"no live factory" between
 #                             beats (the 300s default caused exactly that).
+#   AQ_FLEET_PR=1 + AQ_FLEET_REPO_BASE  WITHOUT these a job's `repo` is ignored and
+#                             Devin just runs the prompt in the sandbox cwd (no PR).
+#                             With them, the factory checks out a worktree of
+#                             $REPO_BASE/<repo>, commits, pushes, and opens a PR.
+#
+# Subset restart (leave a busy factory running):
+#   PRODUCTS="lysnrai mindlyst" bash start-fleet.example.sh
 #
 # Stop a factory:  tmux kill-session -t gigafactory-<product>
 # Tail a factory:  tail -f "$SB"/longrun-gigafactory-<product>-*.log