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Glossary

Term Meaning
VNode A discriminated-union object representing a widget instance in the render tree.
Widget A constructor that produces a VNode (via ui.* helpers or direct objects).
Drawlist (ZRDL) Binary command stream produced by Rezi and executed by the Zireael engine.
Event batch (ZREV) Binary event stream produced by the engine and parsed by Rezi into structured events.
id User-facing identity used for focus and routed events. Must be stable and unique among interactive widgets.
key Reconciliation hint for stable identity in lists; used to reduce churn across renders.