Single host — add projects under /projects/<slug>/ without new nginx server blocks. Ordinals /content/ + /inscription/ are proxied once at this vhost.
Generate project.json, umi-registry.json, and a mint scaffold script from one form: /new-brc333-project.html.
See which source each part uses: ?p=umi, ?p=metaweb-book, ?p=metaweb-book-ordinal (loads project.json → project-slots.json; hover rows). UMi also uses umi-registry.json.
Use /preview.html to load any static entry under /projects/… inside an iframe — no per-project preview host and no extra nginx. Example: UMi in the shell (?p=umi is shorthand for the default preview.html in that folder).
Deploy: rsync repo folders into /var/www/brc333-projects/<slug>/. Optional: add a line above using /preview.html?path=/projects/your-slug/preview.html.
Open generated files under /projects/umi/mints/ if deployed — src="/content/…" resolves via this host’s ordinals proxy.