1tuns http dev:3000 ssh tuns.sh
2# turns into
3ssh -R dev:80:localhost:3000 tuns.sh
4# user has access to the ssh command and can pass whatever to it
5tuns http :3000 ssh -o IdentitiesOnly=yes -i ~/.ssh/id_ed25519 tuns.sh
6# result
7ssh -R 80:localhost:3000 -o IdentitiesOnly=yes -i ~/.ssh/id_ed25519 tuns.sh
8# we can super default for tuns.sh
9tuns :3000
10# result
11ssh -R 80:localhost:3000 tuns.sh
12