Prefix: We aren't doing branching right; I'm trying to see what would happen if I created an RDS instance in a branch my co-worker is using. So I do a

pulumi up

which tells me it's going to update like 500 resources (obviously source has drifted), and create my resource. Which is almost good enough to do a PR, but like, it'd be cool if I can

-target

a resource that doesn't exist yet and try to create it. Can I do that? If so, how do I predict a URN.

The URN is predictable, but quite long so probably easiest to copy it from

pulumi stack export

or use the Pulumi Console to get it (my preferred way).