diff --git a/port/scripts/boot.gd b/port/scripts/boot.gd
index b1d95cd6..42dd2ee6 100644
--- a/port/scripts/boot.gd
+++ b/port/scripts/boot.gd
@@ -1333,6 +1333,22 @@ func _run_script() -> void:
 	# at, not the one it started from. See the note beside the early capture.
 	if _capture_to != "":
 		await _capture(_capture_to)
+	# 🔴 `--linger=SECONDS` KEEPS A SCRIPTED RUN ALIVE AFTER THE WALK SETTLES.
+	#
+	# Without it a scripted run quits the moment the last step settles, and
+	# ANYTHING THE SCREEN DOES AFTERWARDS IS UNOBSERVABLE. That is not
+	# hypothetical: the plate on a returned title arrives on its own declared
+	# ramp at t=214..236, which is ~3.6 s after the screen settles, and a film of
+	# `--script=cancel` stopped at 168 units and never reached it. The behaviour
+	# was inferred from code-path identity because the harness could not watch it.
+	#
+	# `_script_settled` waiting for a hold is right -- a shot taken mid-fade is a
+	# photograph of a fade. This does not change that. It changes what happens
+	# after the shot, which was "exit" and is now optionally "keep running".
+	var linger := float(_args().get("linger", "0"))
+	if linger > 0.0:
+		print("linger: holding %.2f s past the walk so late arrivals are observable" % linger)
+		await get_tree().create_timer(linger).timeout
 	get_tree().quit(0)