CreateStoreOptions

The asset store to bind to the document. Kept by identity, so a caller can compare store.props.assets against what it passed. Defaults to an in-memory store.

Binding utils, for the same reason as shapeUtils.

Custom record types this document may contain, beyond shapes and bindings — an app's own top-level entities. Each contributes a record type and its migration sequence to the schema, so the records validate on load and survive a .tldr round trip.

Give a brand new store its document and first page. Defaults to true.

The seeded page uses DEFAULT_PAGE_ID at FIRST_PAGE_INDEX, so two replicas that each built their own store meet on one page. Turn it OFF when the caller owns the document structure and will put its own page in afterwards — a headless pipeline, a fold that replays records, a test that builds a fixture by hand. Leaving it on there gives the store *two* pages at the same index, and equal indices have no defined order.

Already off, without asking, whenever initialData or snapshot is supplied: those bring their own pages.

The shape utils the document will be read with. Their static migrations are collected into the schema, so a board persisted before a prop existed is backfilled on load. Pass the same list you give the editor.