When a modular jar is published, it cross-publishes the jar's module view into the Jenesis layout over the bridge the shared module exports to just these two: it {@code uses} the {@code ModuleView} the Jenesis format provides. This is the one required cross-publish, and it goes one way - Maven into the module layout, never a module back to Maven. {@code MavenMetadata} is generated on read here. Discovered through {@code provides}, so the layout plugs in like any other format.