Limitation on "Execute Shell Command"

Discussions
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1

I was hoping to use gphoto2 to capture images from a DLSR camera.
I imagined using “Execute Shell Command” node to do this, however I get the following error

"dyld: Library not loaded: /opt/local/lib/libgphoto2.6.dylib
Referenced from: /opt/local/bin/gphoto2
Reason: no suitable image found. Did find:
/opt/local/lib/libgphoto2.6.dylib: file system sandbox blocked stat()

I imagine this is some security limitation.
Any way around it, noting of course that the command I’m using works in the Terminal.

2

In Vuo 2.3.1, we added /opt to the list of directories that the (otherwise sandboxed) Execute Shell Command node is allowed to access.