/proc/thread-self/root/proc/thread-self/root/proc/11/task/15
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 /.
202 0x77fdba0 0x189 0xf02 0x0 0x0 0xffffffff 0x7f173a74bb00 0x7f173c11a37a