Update fifty-suits-shout.md

.changeset/fifty-suits-shout.md

@@ -2,4 +2,21 @@
 "@latticexyz/store-indexer": major
 ---
 
-Adds a [Fastify](https://fastify.dev/) server in front of tRPC and puts tRPC endpoints under `/trpc` to make way for other top-level endpoints (e.g. [tRPC panel](https://github.com/iway1/trpc-panel) or other API frontends like REST or gRPC)
+Adds a [Fastify](https://fastify.dev/) server in front of tRPC and puts tRPC endpoints under `/trpc` to make way for other top-level endpoints (e.g. [tRPC panel](https://github.com/iway1/trpc-panel) or other API frontends like REST or gRPC).
+
+If you're using `@latticexyz/store-sync` packages with an indexer (either `createIndexerClient` or `indexerUrl` argument of `syncToRecs`), then you'll want to update your indexer URL:
+
+```diff
+ createIndexerClient({
+-  url: "https://indexer.dev.linfra.xyz",
++  url: "https://indexer.dev.linfra.xyz/trpc",
+ });
+```
+
+```diff
+ syncToRecs({
+   ...
+-  indexerUrl: "https://indexer.dev.linfra.xyz",
++  indexerUrl: "https://indexer.dev.linfra.xyz/trpc",
+ });
+```