RUNS_IN

const RUNS_IN: readonly ["cloud", "mac"];

Default executor for a source’s sync. cloud = a Trove-hosted runtime; client = the user’s own device.

The manifest value is both the default and the eligibility bound: a cloud source may be flipped to client for a given user (their machine can run anything), never the reverse — a source that needs a browser or a local file cannot be hoisted into a runtime that has neither.