diff --git a/README.md b/README.md
index 03e9bde..54ef5e4 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,43 @@ const {
 })
 ```
 
+## Options
+
+trpc-nuxt accepts the following options exposed under `~/server/trpc.index.ts`:
+
+```ts
+import * as trpc from '@trpc/server'
+import type { inferAsyncReturnType } from '@trpc/server'
+import type { CompatibilityEvent } from 'h3'
+import type { OnErrorPayload } from 'trpc-nuxt/api'
+
+export const router = trpc.router<inferAsyncReturnType<typeof createContext>>()
+
+// Optional
+// https://trpc.io/docs/context
+export const createContext = (event: CompatibilityEvent) => {
+  // ...
+  return {
+    /** context data */
+  }
+}
+
+// Optional
+// https://trpc.io/docs/caching#using-responsemeta--to-cache-responses
+export const responseMeta = () => {
+  // ...
+  return {
+    // { headers: ... }
+  }
+}
+
+// Optional
+// https://trpc.io/docs/error-handling#handling-errors
+export const onError = (payload: OnErrorPayload<typeof router>) => {
+  // Do whatever here like send to bug reporting and stuff
+}
+```
+
 ## Recipes
 
 - [Validation](/recipes/validation.md)
diff --git a/src/runtime/client.ts b/src/runtime/client.ts
index 742e680..d7f5551 100644
--- a/src/runtime/client.ts
+++ b/src/runtime/client.ts
@@ -49,6 +49,7 @@ export async function useAsyncQuery<
     options,
   )
 
+  // @ts-expect-error: Resolved by Nuxt
   if (process.server && error.value && !serverError.value)
     serverError.value = error.value as any