Oh that’s cool, I assumed the DevOps project was just examples!

There’s a jupyter_url property there that is http://{instance's_private_ip_address}:8888?token={jupyter_token}

There’s also
external_address {instance_public_ip_address} internal_ssh_port 10022 internal_stable_ssh_port 10023 jupyter_port 8888 jupyter_token {jupyter_toke} vscode_port 9000
Maybe this is something stupid to do with VPCs that I should understand better!