Deploy Julian

Deploy Julian to an exe.xyz VM. Two paths: provision a new VM or update an existing one. The instance registry at deploy/instances.json tracks which VMs have been provisioned.

Target VM

Determine the target VM name:

1. If $ARGUMENTS is provided, use it as the VM name (e.g., /julian:deploy screen-test)
2. If no arguments, derive from current git branch: julian-<branch> (e.g., branch screen → julian-screen)
3. Strip any characters not valid in hostnames (keep alphanumeric and hyphens)

PRODUCTION SAFETY: If the resolved VM name is exactly julian (the production instance), STOP and warn the user before proceeding. Only proceed after explicit confirmation.

Routing: Provision or Update?

Read deploy/instances.json. If the target VM name exists in the registry, run the Update path. Otherwise, run the Provision path.

If deploy/instances.json doesn't exist, create it as {}.