compiler-explorer/etc/cewrapper/compilers-and-tools.json

{
  "use_appcontainer": true,
  "pids_max": 72,
  "mem_max": 1342177280,
  "allowed_paths": [
    {
      "path": "NUL",
      "rw": true
    }
  ],
  "allowed_registry": []
}