diff --git a/scripts/opax.sh b/scripts/opax.sh
index 6e291ed..ec7b8e3 100644
--- a/scripts/opax.sh
+++ b/scripts/opax.sh
@@ -11,7 +11,7 @@
 
 # --- General Setup ---
 # Exit on error, unset variable, or pipe failure.
-set -euo pipefail
+# set -euo pipefail  # REMOVED: kills shell when sourced
 
 # --- Pre-computation and Environment ---
 OSVAUCO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"