use Noizu.Tessera.Package, components: [MyApp.PersonaCard, ...]
Marks a library as a tessera component package:
components/0— the component module list, verbatim;manifest/0— every component's__tessera_manifest__/0entry, in list order;cem/0— the package's Custom Elements Manifest (Noizu.Tessera.Codegen.cem/1over the components' specs);__tessera_package__/0— discovery marker used by the mix tasks.
Gallery support is included by default: every package exposes cem/0,
and mix tessera.gen.gallery scaffolds the built-in interactive gallery
(live demos + typed attr/prop editors + slot editing + event log) from it
— no opt-in flag. mix tessera.cem writes the package's
custom-elements.json standalone.
mix tessera.manifest aggregates across all loaded apps that use this
macro, and mix tessera.install adds file: npm entries for component
packages that ship a priv/js runtime.