Update

[ghstack-poisoned]

Author: larryliu0820

.github/workflows/cuda.yml

@@ -103,8 +103,8 @@ jobs:
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
       script: |
         set -eux
-        # Install executorch
-        bash ./install_executorch.sh
+        # Install executorch in editable mode so custom op libs land in-tree
+        bash ./install_executorch.sh --editable
 
         # Build ExecuTorch with CUDA support
         cmake --workflow --preset llm-release-cuda