The platform is up. This page came from the shared asset bucket, through the one CloudFront distribution, and the bucket is reachable no other way.
There is no Prototype here yet. When there is, it will be at
/p/<slug>/, and its assets at
/static/<slug>/.
Not the lab's address. The lab is reached at
crew-lab.thelegogroup.com once the DNS delegation and the
certificate land; this hostname is working plumbing and is not for
sharing.