Ah, ok. In any case I was TA with Pierre teaching that class at Chambéry this semester, to run the gamesaves from the student without being too worried about my files i just ran the thing inside a bubblewrap bash session:

bwrap --dev /dev --ro-bind /usr/bin /usr/bin --ro-bind /usr/lib /usr/lib --symlink usr/bin /bin --symlink usr/lib /lib64 --unshare-user --uid 256 --gid 512 --bind TP2 /TP2 /usr/bin/bash