$ cat door

cat: door: encrypted (AES-256-GCM)

This door is still shut. If you have not started the game yet, type ctf in the terminal first. After that, the right flag opens the door with submit, and hint helps if you are stuck.

The game runs in the terminal, which only shows from tablet width up.

drnhfr-sh 1.0 (x86_64-unknown-linux-gnu) * Documentation: type "help" or "?" * Getting around: type "ls", then "cd" Last login: never, from a machine much like this one.