# ProviderProps

Already-built services merged over the parent or explicit runtime. Safe for SSR.

## Signatures

```ts
export interface ProviderProps<R = never, ER = never, Services = never> {
    readonly runtime?: Runtime<R, ER>;
    readonly context?: Context.Context<Services>;
    readonly layer?: Layer.Layer<R, ER>;
    readonly fallback?: ReactNode;
    readonly onError?: (cause: Cause.Cause<ER>) => void;
    readonly children?: ReactNode;
}
```

## Property: context

Already-built services merged over the parent or explicit runtime. Safe for SSR.

## Property: layer

Provider-owned Layer. Acquisition starts after commit; cleanup disposes its runtime.

## Property: onError

Handles acquisition failures; without a handler they reach the nearest React error boundary.

## Property: runtime

Borrowed runtime. The caller owns its disposal.