[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [local‑first/Shared](https://evolu.dev/docs/api-reference/common/local-first/Shared) › BuildWaiting

```ts
const BuildWaiting: object({
  type: literal("BuildWaiting"),
  workerId: SharedWorkerId,
});
```

Defined in: [packages/common/src/local-first/Shared.ts:545](https://github.com/evoluhq/evolu/blob/bc4578a260dd15d5bbf94b83765ca05984d194cb/packages/common/src/local-first/Shared.ts#L545)

Posted on [buildsBroadcastChannelName](https://evolu.dev/docs/api-reference/common/local-first/Shared/variables/buildsBroadcastChannelName) by a tab whose worker waits for
the build lock, unless an automatic reload loaded the page, when it starts
waiting and for each [BuildWaitingRequest](https://evolu.dev/docs/api-reference/common/local-first/Shared/variables/BuildWaitingRequest). A tab connected to another
worker reloads for it; see Builds.