Builds %AshUi.Rendered{} structures straight from a compiled patch table — statics from the table's skeleton, dynamics from evaluator closures over the CURRENT record. The neutral differential contract uses nil-based change tracking: a dynamic whose address is not in the changed set (AshUi.Patch.Runtime.changed_addresses/3) returns nil, and the AshUi.Diff kernel decides the minimal keyed patch. This is the ONE runtime emission path — transports convert or diff its output, never re-emit.

Keyed lists use the core render algebra's keyed comprehensions. Entry keys implement Ash resource identity (AshUi.Patch.Keys — authored key: expression, else the FULL primary key). Entry vars carry the item, the ordinal position when the template declares an index, and the parent record fields the item template reads (:__parent__) — the kernel's retained-variable comparison invalidates exactly the rows a move, item change, or parent-field change touches.

Event binding keys thread through scopes as :__bp_binding_chain__ in scope context: item boundaries append the entry key component, child boundaries append the child address component — producing exactly the keys AshUi.Patch.Bindings.resolve/3 accepts.