Perhaps a better solution would have been not using the Linux namespaces but using LD_PRELOAD to preload a shared library to intercept all the FS-related API an

Perhaps a better solution would have been not using the Linux namespaces but using LD_PRELOAD to preload a shared library to intercept all the FS-related API and normalize the path. Of course more complex and would only function for dynamically linked executables, but would have not required to launch the executable with a proxy and would also be more stable, not relying on not so stable features such as Linux namespaces.