diff --git a/colors.js b/colors.js
index 872f33cac..2b282c820 100644
--- a/colors.js
+++ b/colors.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/next-env.d.ts b/next-env.d.ts
index 52e831b43..bc6d2a23d 100644
--- a/next-env.d.ts
+++ b/next-env.d.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
 
diff --git a/next.config.js b/next.config.js
index 861792c8e..5a5755307 100644
--- a/next.config.js
+++ b/next.config.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/plugins/markdownToHtml.js b/plugins/markdownToHtml.js
index 0d5fe7afb..e9b0c3ec3 100644
--- a/plugins/markdownToHtml.js
+++ b/plugins/markdownToHtml.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 const remark = require('remark');
 const externalLinks = require('remark-external-links'); // Add _target and rel to external links
 const customHeaders = require('./remark-header-custom-ids'); // Custom header id's for i18n
diff --git a/plugins/remark-header-custom-ids.js b/plugins/remark-header-custom-ids.js
index 356de1bf1..c5430ce8a 100644
--- a/plugins/remark-header-custom-ids.js
+++ b/plugins/remark-header-custom-ids.js
@@ -1,5 +1,8 @@
 /**
- * Copyright (c) Facebook, Inc. and its affiliates.
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
  */
 
 /*!
diff --git a/plugins/remark-smartypants.js b/plugins/remark-smartypants.js
index 4694ff674..f56f14b61 100644
--- a/plugins/remark-smartypants.js
+++ b/plugins/remark-smartypants.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*!
  * Based on 'silvenon/remark-smartypants'
  * https://github.com/silvenon/remark-smartypants/pull/80
diff --git a/postcss.config.js b/postcss.config.js
index d55c43c90..6b55f9277 100644
--- a/postcss.config.js
+++ b/postcss.config.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/public/js/jsfiddle-integration-babel.js b/public/js/jsfiddle-integration-babel.js
index 56059472f..56133855a 100644
--- a/public/js/jsfiddle-integration-babel.js
+++ b/public/js/jsfiddle-integration-babel.js
@@ -1,5 +1,8 @@
 /**
- * Copyright (c) Facebook, Inc. and its affiliates.
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
  */
 
 // Do not delete or move this file.
diff --git a/public/js/jsfiddle-integration.js b/public/js/jsfiddle-integration.js
index 2151435d4..aeae13607 100644
--- a/public/js/jsfiddle-integration.js
+++ b/public/js/jsfiddle-integration.js
@@ -1,5 +1,8 @@
 /**
- * Copyright (c) Facebook, Inc. and its affiliates.
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
  */
 
 // Do not delete or move this file.
diff --git a/scripts/deadLinkChecker.js b/scripts/deadLinkChecker.js
index 90593b878..46a21cdc9 100644
--- a/scripts/deadLinkChecker.js
+++ b/scripts/deadLinkChecker.js
@@ -1,4 +1,10 @@
 #!/usr/bin/env node
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
 
 const fs = require('fs');
 const path = require('path');
diff --git a/scripts/generateRss.js b/scripts/generateRss.js
index e0f3d5561..3231b1d73 100644
--- a/scripts/generateRss.js
+++ b/scripts/generateRss.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/scripts/headingIDHelpers/generateHeadingIDs.js b/scripts/headingIDHelpers/generateHeadingIDs.js
index 40925d444..79839f513 100644
--- a/scripts/headingIDHelpers/generateHeadingIDs.js
+++ b/scripts/headingIDHelpers/generateHeadingIDs.js
@@ -1,5 +1,8 @@
 /**
- * Copyright (c) Facebook, Inc. and its affiliates.
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
  */
 
 // To do: Make this ESM.
diff --git a/scripts/headingIDHelpers/validateHeadingIDs.js b/scripts/headingIDHelpers/validateHeadingIDs.js
index c3cf1ab8c..798a63e12 100644
--- a/scripts/headingIDHelpers/validateHeadingIDs.js
+++ b/scripts/headingIDHelpers/validateHeadingIDs.js
@@ -1,6 +1,10 @@
 /**
- * Copyright (c) Facebook, Inc. and its affiliates.
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
  */
+
 const fs = require('fs');
 const walk = require('./walk');
 
diff --git a/scripts/headingIDHelpers/walk.js b/scripts/headingIDHelpers/walk.js
index 54cd500ca..f1ed5e0b3 100644
--- a/scripts/headingIDHelpers/walk.js
+++ b/scripts/headingIDHelpers/walk.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 const fs = require('fs');
 
 module.exports = function walk(dir) {
diff --git a/scripts/headingIdLinter.js b/scripts/headingIdLinter.js
index 6b8f75fc7..32116752b 100644
--- a/scripts/headingIdLinter.js
+++ b/scripts/headingIdLinter.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 const validateHeaderIds = require('./headingIDHelpers/validateHeadingIDs');
 const generateHeadingIds = require('./headingIDHelpers/generateHeadingIDs');
 
diff --git a/src/components/Breadcrumbs.tsx b/src/components/Breadcrumbs.tsx
index e64b486d1..177af2c56 100644
--- a/src/components/Breadcrumbs.tsx
+++ b/src/components/Breadcrumbs.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Button.tsx b/src/components/Button.tsx
index 65c0151ba..6b79a958f 100644
--- a/src/components/Button.tsx
+++ b/src/components/Button.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/ButtonLink.tsx b/src/components/ButtonLink.tsx
index 23c971756..bd98d5b38 100644
--- a/src/components/ButtonLink.tsx
+++ b/src/components/ButtonLink.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/DocsFooter.tsx b/src/components/DocsFooter.tsx
index 93c2ca125..158a54971 100644
--- a/src/components/DocsFooter.tsx
+++ b/src/components/DocsFooter.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/ErrorDecoderContext.tsx b/src/components/ErrorDecoderContext.tsx
index 080969efe..77e9ebf7d 100644
--- a/src/components/ErrorDecoderContext.tsx
+++ b/src/components/ErrorDecoderContext.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 // Error Decoder requires reading pregenerated error message from getStaticProps,
 // but MDX component doesn't support props. So we use React Context to populate
 // the value without prop-drilling.
diff --git a/src/components/ExternalLink.tsx b/src/components/ExternalLink.tsx
index 13fe6d3a9..ccd91fe9c 100644
--- a/src/components/ExternalLink.tsx
+++ b/src/components/ExternalLink.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconArrow.tsx b/src/components/Icon/IconArrow.tsx
index 61e4e52cd..2d0b9fecd 100644
--- a/src/components/Icon/IconArrow.tsx
+++ b/src/components/Icon/IconArrow.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconArrowSmall.tsx b/src/components/Icon/IconArrowSmall.tsx
index a70717c9d..81301c047 100644
--- a/src/components/Icon/IconArrowSmall.tsx
+++ b/src/components/Icon/IconArrowSmall.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconBsky.tsx b/src/components/Icon/IconBsky.tsx
index 5d461556f..ec930923d 100644
--- a/src/components/Icon/IconBsky.tsx
+++ b/src/components/Icon/IconBsky.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconCanary.tsx b/src/components/Icon/IconCanary.tsx
index 7f584fed7..97b9f7cef 100644
--- a/src/components/Icon/IconCanary.tsx
+++ b/src/components/Icon/IconCanary.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconChevron.tsx b/src/components/Icon/IconChevron.tsx
index 4d40330ce..15f34e153 100644
--- a/src/components/Icon/IconChevron.tsx
+++ b/src/components/Icon/IconChevron.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconClose.tsx b/src/components/Icon/IconClose.tsx
index d685fb217..dc4ad7c72 100644
--- a/src/components/Icon/IconClose.tsx
+++ b/src/components/Icon/IconClose.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconCodeBlock.tsx b/src/components/Icon/IconCodeBlock.tsx
index 755a2ae34..ba61f237e 100644
--- a/src/components/Icon/IconCodeBlock.tsx
+++ b/src/components/Icon/IconCodeBlock.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconCopy.tsx b/src/components/Icon/IconCopy.tsx
index 500cd4fda..f62134607 100644
--- a/src/components/Icon/IconCopy.tsx
+++ b/src/components/Icon/IconCopy.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconDeepDive.tsx b/src/components/Icon/IconDeepDive.tsx
index dfe1a928c..121391f33 100644
--- a/src/components/Icon/IconDeepDive.tsx
+++ b/src/components/Icon/IconDeepDive.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconDownload.tsx b/src/components/Icon/IconDownload.tsx
index c0e7f49c2..be551d83e 100644
--- a/src/components/Icon/IconDownload.tsx
+++ b/src/components/Icon/IconDownload.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconError.tsx b/src/components/Icon/IconError.tsx
index f101f62b2..966777fd4 100644
--- a/src/components/Icon/IconError.tsx
+++ b/src/components/Icon/IconError.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconExperimental.tsx b/src/components/Icon/IconExperimental.tsx
index c0f69e3f9..c0dce97f4 100644
--- a/src/components/Icon/IconExperimental.tsx
+++ b/src/components/Icon/IconExperimental.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconFacebookCircle.tsx b/src/components/Icon/IconFacebookCircle.tsx
index 7f1080afa..dea2764d5 100644
--- a/src/components/Icon/IconFacebookCircle.tsx
+++ b/src/components/Icon/IconFacebookCircle.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconGitHub.tsx b/src/components/Icon/IconGitHub.tsx
index 1852f52f1..06c8f1556 100644
--- a/src/components/Icon/IconGitHub.tsx
+++ b/src/components/Icon/IconGitHub.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconHamburger.tsx b/src/components/Icon/IconHamburger.tsx
index 8bc90ee0c..5ab29fa37 100644
--- a/src/components/Icon/IconHamburger.tsx
+++ b/src/components/Icon/IconHamburger.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconHint.tsx b/src/components/Icon/IconHint.tsx
index b802bc79c..802382b5d 100644
--- a/src/components/Icon/IconHint.tsx
+++ b/src/components/Icon/IconHint.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconInstagram.tsx b/src/components/Icon/IconInstagram.tsx
index 79def08e3..00d25a909 100644
--- a/src/components/Icon/IconInstagram.tsx
+++ b/src/components/Icon/IconInstagram.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconLink.tsx b/src/components/Icon/IconLink.tsx
index e6e716d00..0f7d4dfed 100644
--- a/src/components/Icon/IconLink.tsx
+++ b/src/components/Icon/IconLink.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconNavArrow.tsx b/src/components/Icon/IconNavArrow.tsx
index f61175e9b..40fde8afe 100644
--- a/src/components/Icon/IconNavArrow.tsx
+++ b/src/components/Icon/IconNavArrow.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconNewPage.tsx b/src/components/Icon/IconNewPage.tsx
index dfa13bac9..aaf3e8157 100644
--- a/src/components/Icon/IconNewPage.tsx
+++ b/src/components/Icon/IconNewPage.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconNote.tsx b/src/components/Icon/IconNote.tsx
index 1510c91c7..82ed947b4 100644
--- a/src/components/Icon/IconNote.tsx
+++ b/src/components/Icon/IconNote.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconPitfall.tsx b/src/components/Icon/IconPitfall.tsx
index ee6247891..a80fc7d68 100644
--- a/src/components/Icon/IconPitfall.tsx
+++ b/src/components/Icon/IconPitfall.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconRestart.tsx b/src/components/Icon/IconRestart.tsx
index b4a6b62f5..976203c65 100644
--- a/src/components/Icon/IconRestart.tsx
+++ b/src/components/Icon/IconRestart.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconRocket.tsx b/src/components/Icon/IconRocket.tsx
index 457736c7c..c5bb2473a 100644
--- a/src/components/Icon/IconRocket.tsx
+++ b/src/components/Icon/IconRocket.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconRss.tsx b/src/components/Icon/IconRss.tsx
index 6208236f4..13029ec96 100644
--- a/src/components/Icon/IconRss.tsx
+++ b/src/components/Icon/IconRss.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconSearch.tsx b/src/components/Icon/IconSearch.tsx
index 917513561..1dda00eb2 100644
--- a/src/components/Icon/IconSearch.tsx
+++ b/src/components/Icon/IconSearch.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconSolution.tsx b/src/components/Icon/IconSolution.tsx
index 668e41afe..b0f1d44b3 100644
--- a/src/components/Icon/IconSolution.tsx
+++ b/src/components/Icon/IconSolution.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconTerminal.tsx b/src/components/Icon/IconTerminal.tsx
index 7b3a97a8c..66dfd47b7 100644
--- a/src/components/Icon/IconTerminal.tsx
+++ b/src/components/Icon/IconTerminal.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconThreads.tsx b/src/components/Icon/IconThreads.tsx
index 9ea0bafdf..72ded5201 100644
--- a/src/components/Icon/IconThreads.tsx
+++ b/src/components/Icon/IconThreads.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconTwitter.tsx b/src/components/Icon/IconTwitter.tsx
index e84971f4e..01802c253 100644
--- a/src/components/Icon/IconTwitter.tsx
+++ b/src/components/Icon/IconTwitter.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Icon/IconWarning.tsx b/src/components/Icon/IconWarning.tsx
index 83534ec5f..90b7cd41e 100644
--- a/src/components/Icon/IconWarning.tsx
+++ b/src/components/Icon/IconWarning.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/Feedback.tsx b/src/components/Layout/Feedback.tsx
index 34db728ce..fe9272517 100644
--- a/src/components/Layout/Feedback.tsx
+++ b/src/components/Layout/Feedback.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/Footer.tsx b/src/components/Layout/Footer.tsx
index 9cdf256fb..d11e1469d 100644
--- a/src/components/Layout/Footer.tsx
+++ b/src/components/Layout/Footer.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/HomeContent.js b/src/components/Layout/HomeContent.js
index 12fe32106..3cf7d5c2c 100644
--- a/src/components/Layout/HomeContent.js
+++ b/src/components/Layout/HomeContent.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/Page.tsx b/src/components/Layout/Page.tsx
index c3224e517..89c25f46f 100644
--- a/src/components/Layout/Page.tsx
+++ b/src/components/Layout/Page.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/Sidebar/SidebarButton.tsx b/src/components/Layout/Sidebar/SidebarButton.tsx
index dc1f29a8d..744172bec 100644
--- a/src/components/Layout/Sidebar/SidebarButton.tsx
+++ b/src/components/Layout/Sidebar/SidebarButton.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/Sidebar/SidebarLink.tsx b/src/components/Layout/Sidebar/SidebarLink.tsx
index aadb6cf4d..5c01fefc3 100644
--- a/src/components/Layout/Sidebar/SidebarLink.tsx
+++ b/src/components/Layout/Sidebar/SidebarLink.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/Sidebar/SidebarRouteTree.tsx b/src/components/Layout/Sidebar/SidebarRouteTree.tsx
index 72003df74..863355bfd 100644
--- a/src/components/Layout/Sidebar/SidebarRouteTree.tsx
+++ b/src/components/Layout/Sidebar/SidebarRouteTree.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/Sidebar/index.tsx b/src/components/Layout/Sidebar/index.tsx
index d0e291547..69664e6bc 100644
--- a/src/components/Layout/Sidebar/index.tsx
+++ b/src/components/Layout/Sidebar/index.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/SidebarNav/SidebarNav.tsx b/src/components/Layout/SidebarNav/SidebarNav.tsx
index 171270960..77beb4d72 100644
--- a/src/components/Layout/SidebarNav/SidebarNav.tsx
+++ b/src/components/Layout/SidebarNav/SidebarNav.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/SidebarNav/index.tsx b/src/components/Layout/SidebarNav/index.tsx
index b268bbd29..f9680d803 100644
--- a/src/components/Layout/SidebarNav/index.tsx
+++ b/src/components/Layout/SidebarNav/index.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/Toc.tsx b/src/components/Layout/Toc.tsx
index 5308c602c..e2e2169fd 100644
--- a/src/components/Layout/Toc.tsx
+++ b/src/components/Layout/Toc.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/TopNav/BrandMenu.tsx b/src/components/Layout/TopNav/BrandMenu.tsx
index 3bd8776f2..218e423ce 100644
--- a/src/components/Layout/TopNav/BrandMenu.tsx
+++ b/src/components/Layout/TopNav/BrandMenu.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import * as ContextMenu from '@radix-ui/react-context-menu';
 import {IconCopy} from 'components/Icon/IconCopy';
 import {IconDownload} from 'components/Icon/IconDownload';
diff --git a/src/components/Layout/TopNav/TopNav.tsx b/src/components/Layout/TopNav/TopNav.tsx
index a4b431189..148098933 100644
--- a/src/components/Layout/TopNav/TopNav.tsx
+++ b/src/components/Layout/TopNav/TopNav.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/TopNav/index.tsx b/src/components/Layout/TopNav/index.tsx
index 8472fb126..e76fa5ed0 100644
--- a/src/components/Layout/TopNav/index.tsx
+++ b/src/components/Layout/TopNav/index.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/getRouteMeta.tsx b/src/components/Layout/getRouteMeta.tsx
index b3d14725d..5a85a3e21 100644
--- a/src/components/Layout/getRouteMeta.tsx
+++ b/src/components/Layout/getRouteMeta.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Layout/useTocHighlight.tsx b/src/components/Layout/useTocHighlight.tsx
index 544396c68..02385409f 100644
--- a/src/components/Layout/useTocHighlight.tsx
+++ b/src/components/Layout/useTocHighlight.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Logo.tsx b/src/components/Logo.tsx
index 8c4f7da4f..3ea4ba9ac 100644
--- a/src/components/Logo.tsx
+++ b/src/components/Logo.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/BlogCard.tsx b/src/components/MDX/BlogCard.tsx
index 1a16013a2..479617bed 100644
--- a/src/components/MDX/BlogCard.tsx
+++ b/src/components/MDX/BlogCard.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Challenges/Challenge.tsx b/src/components/MDX/Challenges/Challenge.tsx
index e54bf920a..8129ecb2a 100644
--- a/src/components/MDX/Challenges/Challenge.tsx
+++ b/src/components/MDX/Challenges/Challenge.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Challenges/Challenges.tsx b/src/components/MDX/Challenges/Challenges.tsx
index 21fc6865c..1b5dcfb1f 100644
--- a/src/components/MDX/Challenges/Challenges.tsx
+++ b/src/components/MDX/Challenges/Challenges.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Challenges/Navigation.tsx b/src/components/MDX/Challenges/Navigation.tsx
index b4d8c0924..0511bd05a 100644
--- a/src/components/MDX/Challenges/Navigation.tsx
+++ b/src/components/MDX/Challenges/Navigation.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Challenges/index.tsx b/src/components/MDX/Challenges/index.tsx
index 413fd4611..27e3df1ef 100644
--- a/src/components/MDX/Challenges/index.tsx
+++ b/src/components/MDX/Challenges/index.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/CodeBlock/CodeBlock.tsx b/src/components/MDX/CodeBlock/CodeBlock.tsx
index 42165c57d..3eeac3945 100644
--- a/src/components/MDX/CodeBlock/CodeBlock.tsx
+++ b/src/components/MDX/CodeBlock/CodeBlock.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/CodeBlock/index.tsx b/src/components/MDX/CodeBlock/index.tsx
index 551c1d1b6..d3ed3a065 100644
--- a/src/components/MDX/CodeBlock/index.tsx
+++ b/src/components/MDX/CodeBlock/index.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/CodeDiagram.tsx b/src/components/MDX/CodeDiagram.tsx
index 2a198fc56..ba18ae973 100644
--- a/src/components/MDX/CodeDiagram.tsx
+++ b/src/components/MDX/CodeDiagram.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/ConsoleBlock.tsx b/src/components/MDX/ConsoleBlock.tsx
index 6044b1370..1847abc5c 100644
--- a/src/components/MDX/ConsoleBlock.tsx
+++ b/src/components/MDX/ConsoleBlock.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Diagram.tsx b/src/components/MDX/Diagram.tsx
index 649f48dff..579c86ebe 100644
--- a/src/components/MDX/Diagram.tsx
+++ b/src/components/MDX/Diagram.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/DiagramGroup.tsx b/src/components/MDX/DiagramGroup.tsx
index 6c5130a3d..8e3bf46c3 100644
--- a/src/components/MDX/DiagramGroup.tsx
+++ b/src/components/MDX/DiagramGroup.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/ErrorDecoder.tsx b/src/components/MDX/ErrorDecoder.tsx
index a9b7455df..423790198 100644
--- a/src/components/MDX/ErrorDecoder.tsx
+++ b/src/components/MDX/ErrorDecoder.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import {useEffect, useState} from 'react';
 import {useErrorDecoderParams} from '../ErrorDecoderContext';
 import cn from 'classnames';
diff --git a/src/components/MDX/ExpandableCallout.tsx b/src/components/MDX/ExpandableCallout.tsx
index 41d3d65d9..ba93d3e27 100644
--- a/src/components/MDX/ExpandableCallout.tsx
+++ b/src/components/MDX/ExpandableCallout.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/ExpandableExample.tsx b/src/components/MDX/ExpandableExample.tsx
index 1e709e483..c11cd6c3c 100644
--- a/src/components/MDX/ExpandableExample.tsx
+++ b/src/components/MDX/ExpandableExample.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Heading.tsx b/src/components/MDX/Heading.tsx
index a9f3efc38..5890a3a48 100644
--- a/src/components/MDX/Heading.tsx
+++ b/src/components/MDX/Heading.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/InlineCode.tsx b/src/components/MDX/InlineCode.tsx
index 5759a7c0a..17e4683b9 100644
--- a/src/components/MDX/InlineCode.tsx
+++ b/src/components/MDX/InlineCode.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Intro.tsx b/src/components/MDX/Intro.tsx
index 0522df678..b0bee624d 100644
--- a/src/components/MDX/Intro.tsx
+++ b/src/components/MDX/Intro.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/LanguagesContext.tsx b/src/components/MDX/LanguagesContext.tsx
index 776a11c0d..cd9f88816 100644
--- a/src/components/MDX/LanguagesContext.tsx
+++ b/src/components/MDX/LanguagesContext.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Link.tsx b/src/components/MDX/Link.tsx
index 7bf041e56..8a47c401f 100644
--- a/src/components/MDX/Link.tsx
+++ b/src/components/MDX/Link.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/MDXComponents.tsx b/src/components/MDX/MDXComponents.tsx
index afcb9c265..7a258370c 100644
--- a/src/components/MDX/MDXComponents.tsx
+++ b/src/components/MDX/MDXComponents.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/PackageImport.tsx b/src/components/MDX/PackageImport.tsx
index 5e2da820e..222353ff5 100644
--- a/src/components/MDX/PackageImport.tsx
+++ b/src/components/MDX/PackageImport.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Recap.tsx b/src/components/MDX/Recap.tsx
index d91ed48b4..293304367 100644
--- a/src/components/MDX/Recap.tsx
+++ b/src/components/MDX/Recap.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/ClearButton.tsx b/src/components/MDX/Sandpack/ClearButton.tsx
index 868f9fb66..be7451ab3 100644
--- a/src/components/MDX/Sandpack/ClearButton.tsx
+++ b/src/components/MDX/Sandpack/ClearButton.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/Console.tsx b/src/components/MDX/Sandpack/Console.tsx
index b5276fc13..3417e11f1 100644
--- a/src/components/MDX/Sandpack/Console.tsx
+++ b/src/components/MDX/Sandpack/Console.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/CustomPreset.tsx b/src/components/MDX/Sandpack/CustomPreset.tsx
index 7d6e566d2..4a241c87c 100644
--- a/src/components/MDX/Sandpack/CustomPreset.tsx
+++ b/src/components/MDX/Sandpack/CustomPreset.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/DownloadButton.tsx b/src/components/MDX/Sandpack/DownloadButton.tsx
index 94cf13ddc..b51627d89 100644
--- a/src/components/MDX/Sandpack/DownloadButton.tsx
+++ b/src/components/MDX/Sandpack/DownloadButton.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/ErrorMessage.tsx b/src/components/MDX/Sandpack/ErrorMessage.tsx
index 7c67ee461..3dbeb113b 100644
--- a/src/components/MDX/Sandpack/ErrorMessage.tsx
+++ b/src/components/MDX/Sandpack/ErrorMessage.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/LoadingOverlay.tsx b/src/components/MDX/Sandpack/LoadingOverlay.tsx
index de883629c..1945f0c6f 100644
--- a/src/components/MDX/Sandpack/LoadingOverlay.tsx
+++ b/src/components/MDX/Sandpack/LoadingOverlay.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import {useState} from 'react';
 
 import {
diff --git a/src/components/MDX/Sandpack/NavigationBar.tsx b/src/components/MDX/Sandpack/NavigationBar.tsx
index d115868dd..3fe743a2d 100644
--- a/src/components/MDX/Sandpack/NavigationBar.tsx
+++ b/src/components/MDX/Sandpack/NavigationBar.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/OpenInCodeSandboxButton.tsx b/src/components/MDX/Sandpack/OpenInCodeSandboxButton.tsx
index a27122ed6..83b968fab 100644
--- a/src/components/MDX/Sandpack/OpenInCodeSandboxButton.tsx
+++ b/src/components/MDX/Sandpack/OpenInCodeSandboxButton.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/OpenInTypeScriptPlayground.tsx b/src/components/MDX/Sandpack/OpenInTypeScriptPlayground.tsx
index 7284912e3..ca0286530 100644
--- a/src/components/MDX/Sandpack/OpenInTypeScriptPlayground.tsx
+++ b/src/components/MDX/Sandpack/OpenInTypeScriptPlayground.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/Preview.tsx b/src/components/MDX/Sandpack/Preview.tsx
index e4fe0afe4..ead9341b6 100644
--- a/src/components/MDX/Sandpack/Preview.tsx
+++ b/src/components/MDX/Sandpack/Preview.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/ReloadButton.tsx b/src/components/MDX/Sandpack/ReloadButton.tsx
index f828a6c2d..71a25ea47 100644
--- a/src/components/MDX/Sandpack/ReloadButton.tsx
+++ b/src/components/MDX/Sandpack/ReloadButton.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/SandpackRoot.tsx b/src/components/MDX/Sandpack/SandpackRoot.tsx
index 67f40d0b3..48d8daee5 100644
--- a/src/components/MDX/Sandpack/SandpackRoot.tsx
+++ b/src/components/MDX/Sandpack/SandpackRoot.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/Themes.tsx b/src/components/MDX/Sandpack/Themes.tsx
index 3923470ca..8aa34dc95 100644
--- a/src/components/MDX/Sandpack/Themes.tsx
+++ b/src/components/MDX/Sandpack/Themes.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/createFileMap.ts b/src/components/MDX/Sandpack/createFileMap.ts
index 193b07be8..323f936e7 100644
--- a/src/components/MDX/Sandpack/createFileMap.ts
+++ b/src/components/MDX/Sandpack/createFileMap.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/index.tsx b/src/components/MDX/Sandpack/index.tsx
index 6755ba8de..08e7dd6f0 100644
--- a/src/components/MDX/Sandpack/index.tsx
+++ b/src/components/MDX/Sandpack/index.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/Sandpack/runESLint.tsx b/src/components/MDX/Sandpack/runESLint.tsx
index 5fea2f110..a0b835461 100644
--- a/src/components/MDX/Sandpack/runESLint.tsx
+++ b/src/components/MDX/Sandpack/runESLint.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 // @ts-nocheck
 
 import {Linter} from 'eslint/lib/linter/linter';
diff --git a/src/components/MDX/Sandpack/template.ts b/src/components/MDX/Sandpack/template.ts
index dd6fd12bd..358c8616e 100644
--- a/src/components/MDX/Sandpack/template.ts
+++ b/src/components/MDX/Sandpack/template.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 export const template = {
   '/src/index.js': {
     hidden: true,
diff --git a/src/components/MDX/Sandpack/useSandpackLint.tsx b/src/components/MDX/Sandpack/useSandpackLint.tsx
index ec05fbe0d..479b53ee0 100644
--- a/src/components/MDX/Sandpack/useSandpackLint.tsx
+++ b/src/components/MDX/Sandpack/useSandpackLint.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/SandpackWithHTMLOutput.tsx b/src/components/MDX/SandpackWithHTMLOutput.tsx
index 51ce28dc1..c5149deb9 100644
--- a/src/components/MDX/SandpackWithHTMLOutput.tsx
+++ b/src/components/MDX/SandpackWithHTMLOutput.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import {Children, memo} from 'react';
 import InlineCode from './InlineCode';
 import Sandpack from './Sandpack';
diff --git a/src/components/MDX/SimpleCallout.tsx b/src/components/MDX/SimpleCallout.tsx
index ae259bcf5..0e124baa7 100644
--- a/src/components/MDX/SimpleCallout.tsx
+++ b/src/components/MDX/SimpleCallout.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/TeamMember.tsx b/src/components/MDX/TeamMember.tsx
index 2c2fffa73..2d0c65537 100644
--- a/src/components/MDX/TeamMember.tsx
+++ b/src/components/MDX/TeamMember.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/TerminalBlock.tsx b/src/components/MDX/TerminalBlock.tsx
index 475292716..bdcd8e466 100644
--- a/src/components/MDX/TerminalBlock.tsx
+++ b/src/components/MDX/TerminalBlock.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/TocContext.tsx b/src/components/MDX/TocContext.tsx
index 8aeead370..924e6e09e 100644
--- a/src/components/MDX/TocContext.tsx
+++ b/src/components/MDX/TocContext.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/MDX/YouWillLearnCard.tsx b/src/components/MDX/YouWillLearnCard.tsx
index d46a70277..20fc3b5fe 100644
--- a/src/components/MDX/YouWillLearnCard.tsx
+++ b/src/components/MDX/YouWillLearnCard.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/PageHeading.tsx b/src/components/PageHeading.tsx
index 3f15afe95..760542750 100644
--- a/src/components/PageHeading.tsx
+++ b/src/components/PageHeading.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Search.tsx b/src/components/Search.tsx
index c7401487b..24b066d70 100644
--- a/src/components/Search.tsx
+++ b/src/components/Search.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/Seo.tsx b/src/components/Seo.tsx
index b8a8394b6..906041020 100644
--- a/src/components/Seo.tsx
+++ b/src/components/Seo.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/components/SocialBanner.tsx b/src/components/SocialBanner.tsx
index ae87d2050..4e404adcf 100644
--- a/src/components/SocialBanner.tsx
+++ b/src/components/SocialBanner.tsx
@@ -1,6 +1,8 @@
 /**
- * Copyright (c) Facebook, Inc. and its affiliates.
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
  *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
  */
 
 import {useRef, useEffect} from 'react';
diff --git a/src/components/Tag.tsx b/src/components/Tag.tsx
index 2e63a81f6..9a69d179c 100644
--- a/src/components/Tag.tsx
+++ b/src/components/Tag.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/hooks/usePendingRoute.ts b/src/hooks/usePendingRoute.ts
index 229a36e64..17d7525b4 100644
--- a/src/hooks/usePendingRoute.ts
+++ b/src/hooks/usePendingRoute.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/pages/404.js b/src/pages/404.js
index 2a88fc29a..2b5a83baf 100644
--- a/src/pages/404.js
+++ b/src/pages/404.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/pages/500.js b/src/pages/500.js
index b043e35b2..552dcf77b 100644
--- a/src/pages/500.js
+++ b/src/pages/500.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/pages/[[...markdownPath]].js b/src/pages/[[...markdownPath]].js
index bef4508df..cb2e23a38 100644
--- a/src/pages/[[...markdownPath]].js
+++ b/src/pages/[[...markdownPath]].js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/pages/_app.tsx b/src/pages/_app.tsx
index 5431f87cc..80a0a0f86 100644
--- a/src/pages/_app.tsx
+++ b/src/pages/_app.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/pages/_document.tsx b/src/pages/_document.tsx
index 6849df35d..21b6f4d4f 100644
--- a/src/pages/_document.tsx
+++ b/src/pages/_document.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/pages/errors/[errorCode].tsx b/src/pages/errors/[errorCode].tsx
index c8cf28ad8..67466a1d9 100644
--- a/src/pages/errors/[errorCode].tsx
+++ b/src/pages/errors/[errorCode].tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import {Fragment, useMemo} from 'react';
 import {Page} from 'components/Layout/Page';
 import {MDXComponents} from 'components/MDX/MDXComponents';
diff --git a/src/pages/errors/index.tsx b/src/pages/errors/index.tsx
index d7742f03a..0c154039c 100644
--- a/src/pages/errors/index.tsx
+++ b/src/pages/errors/index.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import ErrorDecoderPage from './[errorCode]';
 export default ErrorDecoderPage;
 export {getStaticProps} from './[errorCode]';
diff --git a/src/siteConfig.js b/src/siteConfig.js
index e731dcec4..a43fbf5fc 100644
--- a/src/siteConfig.js
+++ b/src/siteConfig.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/types/docsearch-react-modal.d.ts b/src/types/docsearch-react-modal.d.ts
index 568ffed80..f169f0364 100644
--- a/src/types/docsearch-react-modal.d.ts
+++ b/src/types/docsearch-react-modal.d.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/utils/analytics.ts b/src/utils/analytics.ts
index c2cc623b9..bd5b5f600 100644
--- a/src/utils/analytics.ts
+++ b/src/utils/analytics.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/utils/compileMDX.ts b/src/utils/compileMDX.ts
index be770c29a..807b50da5 100644
--- a/src/utils/compileMDX.ts
+++ b/src/utils/compileMDX.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 import {LanguageItem} from 'components/MDX/LanguagesContext';
 import {MDXComponents} from 'components/MDX/MDXComponents';
 
diff --git a/src/utils/finishedTranslations.ts b/src/utils/finishedTranslations.ts
index 6f509f0b5..1bd55637a 100644
--- a/src/utils/finishedTranslations.ts
+++ b/src/utils/finishedTranslations.ts
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 // This is a list of languages with enough translated content.
 // Add more languages here when they have enough content.
 // Please DO NOT edit this list without a discussion in the reactjs/react.dev repo.
diff --git a/src/utils/forwardRefWithAs.tsx b/src/utils/forwardRefWithAs.tsx
index 8f8282ab1..c5975c199 100644
--- a/src/utils/forwardRefWithAs.tsx
+++ b/src/utils/forwardRefWithAs.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/utils/prepareMDX.js b/src/utils/prepareMDX.js
index 20a22577d..5ad0a64b0 100644
--- a/src/utils/prepareMDX.js
+++ b/src/utils/prepareMDX.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/utils/processShim.js b/src/utils/processShim.js
index 7d8454988..915a9ea33 100644
--- a/src/utils/processShim.js
+++ b/src/utils/processShim.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/utils/rafShim.js b/src/utils/rafShim.js
index 9c3097d8f..f4984da83 100644
--- a/src/utils/rafShim.js
+++ b/src/utils/rafShim.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/utils/rss.js b/src/utils/rss.js
index 29e5511ea..82764351c 100644
--- a/src/utils/rss.js
+++ b/src/utils/rss.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/src/utils/toCommaSeparatedList.tsx b/src/utils/toCommaSeparatedList.tsx
index e95ee1799..affa1970a 100644
--- a/src/utils/toCommaSeparatedList.tsx
+++ b/src/utils/toCommaSeparatedList.tsx
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */
diff --git a/tailwind.config.js b/tailwind.config.js
index f31a24516..9450cfa59 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 /*
  * Copyright (c) Facebook, Inc. and its affiliates.
  */