### ssh attempt with ~/.ssh/id_ed25519
Warning: Permanently added '[216.243.220.199]:18876' (ED25519) to the list of known hosts.
** WARNING: connection is not using a post-quantum key exchange algorithm.
** This session may be vulnerable to "store now, decrypt later" attacks.
** The server may need to be upgraded. See https://openssh.com/pq.html
SSH_OK
Linux c8d96afef2f8 6.8.0-100-generic #100-Ubuntu SMP PREEMPT_DYNAMIC Tue Jan 13 16:40:06 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
ls: cannot access '/workspace': No such file or directory
Filesystem      Size  Used Avail Use% Mounted on
overlay          10G   16M   10G   1% /
/usr/bin/rsync
/usr/bin/tmux
/usr/bin/git
/usr/bin/curl
df: /workspace: No such file or directory
exit=0
