diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..0af1186
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+registry=https://packagefeedproxy.microsoft.io/npm/
diff --git a/README.md b/README.md
index 3266ebb..b07644e 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,9 @@ selected model from its prebuilt model catalog on first use.
 
 ## Development
 
+The repository's `.npmrc` configures npm to use Microsoft's approved package feed at
+`https://packagefeedproxy.microsoft.io/npm/`.
+
 ```bash
 npm install
 npm run dev