/proc
This explorer reads the filesystem of the server it runs on, so /workspace/user isn't present here. Browsing and the terminal still work against this server's own disk from /.
#subsys_name hierarchy num_cgroups enabledcpuset 3 1 1cpu 5 61 1cpuacct 5 61 1blkio 7 58 1memory 2 76 1devices 10 58 1freezer 4 4 1net_cls 9 1 1perf_event 8 1 1net_prio 9 1 1hugetlb 11 1 1pids 6 58 1