Can MXC JSON be used for configuration of OS-portable sandboxing policies with OpenShell, too?

"feat(ai-sandbox): accept MXC policy JSON for protected execution · westurner/sandbox@7538c33" https://github.com/westurner/sandbox/commit/7538c3386af8cb62...

"bwrap: Add the option to skip the procfs mount · Pull Request #1508 · microsoft/mxc" https://github.com/microsoft/mxc/pull/1508

"Manage Sandboxes | NVIDIA OpenShell" https://docs.nvidia.com/openshell/latest/how-it-works/sandbo...

To sandbox LSP servers in sphinxdocrs with bwrap in rootless containers, we needed to add a --no-procfs-mount CLI arg (and MXC JSON) to sandboxes, because you can't mount /proc in a rootless container.