diff --git a/.github/workflow-scripts/__tests__/publishTemplate-test.js b/.github/workflow-scripts/__tests__/publishTemplate-test.js
index 9ddc6001680..9f735a63397 100644
--- a/.github/workflow-scripts/__tests__/publishTemplate-test.js
+++ b/.github/workflow-scripts/__tests__/publishTemplate-test.js
@@ -117,13 +117,13 @@ describe('#verifyPublishedTemplate', () => {
     it('will timeout if npm does not update package version after a set number of retries', async () => {
       const RETRIES = 2;
 
-      await verifyPublishedTemplate('0.77.0', true, RETRIES),
+      (await verifyPublishedTemplate('0.77.0', true, RETRIES),
         expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
           '@react-native-community/template',
           '0.77.0',
           'latest',
           2,
-        );
+        ));
     });
   });
 });
diff --git a/.github/workflow-scripts/__tests__/verifyReleaseOnNpm-test.js b/.github/workflow-scripts/__tests__/verifyReleaseOnNpm-test.js
index 4850e256b5a..761c4352b40 100644
--- a/.github/workflow-scripts/__tests__/verifyReleaseOnNpm-test.js
+++ b/.github/workflow-scripts/__tests__/verifyReleaseOnNpm-test.js
@@ -83,13 +83,13 @@ describe('#verifyReleaseOnNPM', () => {
     it('will timeout if npm does not update package version after a set number of retries', async () => {
       const RETRIES = 2;
 
-      await verifyReleaseOnNpm('0.77.0', true, RETRIES),
+      (await verifyReleaseOnNpm('0.77.0', true, RETRIES),
         expect(mockVerifyPublishedPackage).toHaveBeenCalledWith(
           'react-native',
           '0.77.0',
           'latest',
           2,
-        );
+        ));
     });
 
     it('will timeout if npm does not update latest tag after a set number of retries', async () => {
diff --git a/package.json b/package.json
index 36721dd8003..03d3261c8ad 100644
--- a/package.json
+++ b/package.json
@@ -102,7 +102,7 @@
     "node-fetch": "^2.2.0",
     "nullthrows": "^1.1.1",
     "prettier": "3.6.2",
-    "prettier-plugin-hermes-parser": "0.30.0",
+    "prettier-plugin-hermes-parser": "0.31.1",
     "react": "19.1.1",
     "react-test-renderer": "19.1.1",
     "rimraf": "^3.0.2",
diff --git a/packages/dev-middleware/src/__tests__/ServerUtils.js b/packages/dev-middleware/src/__tests__/ServerUtils.js
index f67b6a83f49..df0c3177d2b 100644
--- a/packages/dev-middleware/src/__tests__/ServerUtils.js
+++ b/packages/dev-middleware/src/__tests__/ServerUtils.js
@@ -62,11 +62,11 @@ export function withServerForEachTest(options: CreateServerOptions): $ReadOnly<{
     ({server, app} = await createServer(options));
     const serverBaseUrl = baseUrlForServer(
       server,
-      options.secure ?? false ? 'https' : 'http',
+      (options.secure ?? false) ? 'https' : 'http',
     );
     const serverBaseWsUrl = baseUrlForServer(
       server,
-      options.secure ?? false ? 'wss' : 'ws',
+      (options.secure ?? false) ? 'wss' : 'ws',
     );
     Object.defineProperty(ref, 'serverBaseUrl', {value: serverBaseUrl});
     Object.defineProperty(ref, 'serverBaseWsUrl', {value: serverBaseWsUrl});
diff --git a/packages/react-native/Libraries/Components/Pressable/Pressable.js b/packages/react-native/Libraries/Components/Pressable/Pressable.js
index 42d94a758aa..e8b58984889 100644
--- a/packages/react-native/Libraries/Components/Pressable/Pressable.js
+++ b/packages/react-native/Libraries/Components/Pressable/Pressable.js
@@ -243,7 +243,7 @@ function Pressable({
   };
 
   const accessibilityLiveRegion =
-    ariaLive === 'off' ? 'none' : ariaLive ?? props.accessibilityLiveRegion;
+    ariaLive === 'off' ? 'none' : (ariaLive ?? props.accessibilityLiveRegion);
 
   const accessibilityLabel = ariaLabel ?? props.accessibilityLabel;
   const restPropsWithDefaults: React.ElementConfig<typeof View> = {
diff --git a/packages/react-native/Libraries/Components/StatusBar/StatusBar.js b/packages/react-native/Libraries/Components/StatusBar/StatusBar.js
index 5c266b11405..5cbc674ecf3 100644
--- a/packages/react-native/Libraries/Components/StatusBar/StatusBar.js
+++ b/packages/react-native/Libraries/Components/StatusBar/StatusBar.js
@@ -235,8 +235,8 @@ class StatusBar extends React.Component<StatusBarProps> {
   static _defaultProps: any = createStackEntry({
     backgroundColor:
       Platform.OS === 'android'
-        ? NativeStatusBarManagerAndroid.getConstants()
-            .DEFAULT_BACKGROUND_COLOR ?? 'black'
+        ? (NativeStatusBarManagerAndroid.getConstants()
+            .DEFAULT_BACKGROUND_COLOR ?? 'black')
         : 'black',
     barStyle: 'default',
     translucent: false,
diff --git a/packages/react-native/Libraries/Components/TextInput/TextInput.js b/packages/react-native/Libraries/Components/TextInput/TextInput.js
index 8bd86ccc2f0..46c1d6c61a3 100644
--- a/packages/react-native/Libraries/Components/TextInput/TextInput.js
+++ b/packages/react-native/Libraries/Components/TextInput/TextInput.js
@@ -915,8 +915,8 @@ const TextInput: component(
         Platform.OS === 'android'
           ? // $FlowFixMe[invalid-computed-prop]
             // $FlowFixMe[prop-missing]
-            autoCompleteWebToAutoCompleteAndroidMap[autoComplete] ??
-            autoComplete
+            (autoCompleteWebToAutoCompleteAndroidMap[autoComplete] ??
+            autoComplete)
           : undefined
       }
       textContentType={
diff --git a/packages/react-native/Libraries/Components/Touchable/TouchableBounce.js b/packages/react-native/Libraries/Components/Touchable/TouchableBounce.js
index db6bd60d793..3a81bc78281 100644
--- a/packages/react-native/Libraries/Components/Touchable/TouchableBounce.js
+++ b/packages/react-native/Libraries/Components/Touchable/TouchableBounce.js
@@ -138,7 +138,7 @@ class TouchableBounce extends React.Component<
     const accessibilityLiveRegion =
       this.props['aria-live'] === 'off'
         ? 'none'
-        : this.props['aria-live'] ?? this.props.accessibilityLiveRegion;
+        : (this.props['aria-live'] ?? this.props.accessibilityLiveRegion);
     const _accessibilityState = {
       busy: this.props['aria-busy'] ?? this.props.accessibilityState?.busy,
       checked:
diff --git a/packages/react-native/Libraries/Components/Touchable/TouchableHighlight.js b/packages/react-native/Libraries/Components/Touchable/TouchableHighlight.js
index 015afef3157..ba1518a85e8 100644
--- a/packages/react-native/Libraries/Components/Touchable/TouchableHighlight.js
+++ b/packages/react-native/Libraries/Components/Touchable/TouchableHighlight.js
@@ -328,7 +328,7 @@ class TouchableHighlightImpl extends React.Component<
     const accessibilityLiveRegion =
       this.props['aria-live'] === 'off'
         ? 'none'
-        : this.props['aria-live'] ?? this.props.accessibilityLiveRegion;
+        : (this.props['aria-live'] ?? this.props.accessibilityLiveRegion);
 
     const accessibilityLabel =
       this.props['aria-label'] ?? this.props.accessibilityLabel;
diff --git a/packages/react-native/Libraries/Components/Touchable/TouchableNativeFeedback.js b/packages/react-native/Libraries/Components/Touchable/TouchableNativeFeedback.js
index 7cf4ffd42e1..97d2900eb99 100644
--- a/packages/react-native/Libraries/Components/Touchable/TouchableNativeFeedback.js
+++ b/packages/react-native/Libraries/Components/Touchable/TouchableNativeFeedback.js
@@ -332,7 +332,7 @@ class TouchableNativeFeedback extends React.Component<
     const accessibilityLiveRegion =
       this.props['aria-live'] === 'off'
         ? 'none'
-        : this.props['aria-live'] ?? this.props.accessibilityLiveRegion;
+        : (this.props['aria-live'] ?? this.props.accessibilityLiveRegion);
 
     const accessibilityLabel =
       this.props['aria-label'] ?? this.props.accessibilityLabel;
diff --git a/packages/react-native/Libraries/Components/Touchable/TouchableOpacity.js b/packages/react-native/Libraries/Components/Touchable/TouchableOpacity.js
index 8bb207b2724..9733b42c7aa 100644
--- a/packages/react-native/Libraries/Components/Touchable/TouchableOpacity.js
+++ b/packages/react-native/Libraries/Components/Touchable/TouchableOpacity.js
@@ -294,7 +294,7 @@ class TouchableOpacity extends React.Component<
     const accessibilityLiveRegion =
       this.props['aria-live'] === 'off'
         ? 'none'
-        : this.props['aria-live'] ?? this.props.accessibilityLiveRegion;
+        : (this.props['aria-live'] ?? this.props.accessibilityLiveRegion);
 
     const accessibilityLabel =
       this.props['aria-label'] ?? this.props.accessibilityLabel;
diff --git a/packages/react-native/Libraries/Components/Touchable/TouchableWithoutFeedback.js b/packages/react-native/Libraries/Components/Touchable/TouchableWithoutFeedback.js
index d375fe7b899..15fa6b1ec07 100755
--- a/packages/react-native/Libraries/Components/Touchable/TouchableWithoutFeedback.js
+++ b/packages/react-native/Libraries/Components/Touchable/TouchableWithoutFeedback.js
@@ -189,7 +189,7 @@ export default function TouchableWithoutFeedback(
       disabled:
         disabled !== null
           ? disabled
-          : ariaDisabled ?? accessibilityState?.disabled,
+          : (ariaDisabled ?? accessibilityState?.disabled),
       hitSlop: hitSlop,
       delayLongPress: delayLongPress,
       delayPressIn: delayPressIn,
@@ -272,7 +272,7 @@ export default function TouchableWithoutFeedback(
         ? 'no-hide-descendants'
         : props.importantForAccessibility,
     accessibilityLiveRegion:
-      ariaLive === 'off' ? 'none' : ariaLive ?? props.accessibilityLiveRegion,
+      ariaLive === 'off' ? 'none' : (ariaLive ?? props.accessibilityLiveRegion),
     nativeID: props.id ?? props.nativeID,
   };
 
diff --git a/packages/react-native/Libraries/Modal/Modal.js b/packages/react-native/Libraries/Modal/Modal.js
index 2bdcbecc4dd..d1da4166414 100644
--- a/packages/react-native/Libraries/Modal/Modal.js
+++ b/packages/react-native/Libraries/Modal/Modal.js
@@ -292,7 +292,7 @@ class Modal extends React.Component<ModalProps, ModalState> {
       backgroundColor:
         this.props.transparent === true
           ? 'transparent'
-          : this.props.backdropColor ?? 'white',
+          : (this.props.backdropColor ?? 'white'),
     };
 
     let animationType = this.props.animationType || 'none';
diff --git a/packages/react-native/Libraries/NativeComponent/ViewConfig.js b/packages/react-native/Libraries/NativeComponent/ViewConfig.js
index 6f4ac624923..9dae3155a9a 100644
--- a/packages/react-native/Libraries/NativeComponent/ViewConfig.js
+++ b/packages/react-native/Libraries/NativeComponent/ViewConfig.js
@@ -47,6 +47,6 @@ function composeIndexers<T>(
   maybeB: ?{+[string]: T},
 ): {+[string]: T} {
   return maybeA == null || maybeB == null
-    ? maybeA ?? maybeB ?? {}
+    ? (maybeA ?? maybeB ?? {})
     : {...maybeA, ...maybeB};
 }
diff --git a/packages/react-native/jest/mockComponent.js b/packages/react-native/jest/mockComponent.js
index 6ff4f6bd3e2..7dedd4343b0 100644
--- a/packages/react-native/jest/mockComponent.js
+++ b/packages/react-native/jest/mockComponent.js
@@ -50,7 +50,7 @@ export default function mockComponent<
     (RealComponent.render == null
       ? 'Unknown'
       : // $FlowFixMe[incompatible-use]
-        RealComponent.render.displayName ?? RealComponent.render.name);
+        (RealComponent.render.displayName ?? RealComponent.render.name));
 
   const nameWithoutPrefix = name.replace(/^(RCT|RK)/, '');
 
diff --git a/packages/react-native/scripts/codegen/generate-artifacts-executor/constants.js b/packages/react-native/scripts/codegen/generate-artifacts-executor/constants.js
index 7f653a5ff60..8fc50a9111e 100644
--- a/packages/react-native/scripts/codegen/generate-artifacts-executor/constants.js
+++ b/packages/react-native/scripts/codegen/generate-artifacts-executor/constants.js
@@ -22,31 +22,31 @@ const REACT_NATIVE_REPOSITORY_ROOT = path.join(
   '..',
 );
 
-const REACT_NATIVE_PACKAGE_ROOT_FOLDER = path.join(
-    __dirname,
-    '..',
-    '..',
-    '..',
-  ) /*:: as string */;
+const REACT_NATIVE_PACKAGE_ROOT_FOLDER /*: string */ = path.join(
+  __dirname,
+  '..',
+  '..',
+  '..',
+);
 const CODEGEN_REPO_PATH = `${REACT_NATIVE_REPOSITORY_ROOT}/packages/react-native-codegen`;
 
-const CORE_LIBRARIES_WITH_OUTPUT_FOLDER = {
-    FBReactNativeSpec: {
-      ios: path.join(
-        REACT_NATIVE_PACKAGE_ROOT_FOLDER,
-        'React',
-        'FBReactNativeSpec',
-      ) /*:: as string */,
-      android: path.join(
-        REACT_NATIVE_PACKAGE_ROOT_FOLDER,
-        'ReactAndroid',
-        'build',
-        'generated',
-        'source',
-        'codegen',
-      ) /*:: as string */,
-    },
-  } /*:: as {[string]: $FlowFixMe} */;
+const CORE_LIBRARIES_WITH_OUTPUT_FOLDER /*: {[string]: $FlowFixMe} */ = {
+  FBReactNativeSpec: {
+    ios: path.join(
+      REACT_NATIVE_PACKAGE_ROOT_FOLDER,
+      'React',
+      'FBReactNativeSpec',
+    ) /*:: as string */,
+    android: path.join(
+      REACT_NATIVE_PACKAGE_ROOT_FOLDER,
+      'ReactAndroid',
+      'build',
+      'generated',
+      'source',
+      'codegen',
+    ) /*:: as string */,
+  },
+};
 
 const packageJsonPath = path.join(
   REACT_NATIVE_PACKAGE_ROOT_FOLDER,
@@ -57,12 +57,12 @@ const packageJsonPath = path.join(
 const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));
 const REACT_NATIVE = packageJson.name;
 
-const TEMPLATES_FOLDER_PATH = path.join(
-    REACT_NATIVE_PACKAGE_ROOT_FOLDER,
-    'scripts',
-    'codegen',
-    'templates',
-  ) /*:: as string */;
+const TEMPLATES_FOLDER_PATH /*: string */ = path.join(
+  REACT_NATIVE_PACKAGE_ROOT_FOLDER,
+  'scripts',
+  'codegen',
+  'templates',
+);
 
 module.exports = {
   CODEGEN_REPO_PATH,
diff --git a/packages/react-native/scripts/codegen/generate-artifacts-executor/generateRCTModuleProviders.js b/packages/react-native/scripts/codegen/generate-artifacts-executor/generateRCTModuleProviders.js
index cba1e1d3017..1c8051db5ba 100644
--- a/packages/react-native/scripts/codegen/generate-artifacts-executor/generateRCTModuleProviders.js
+++ b/packages/react-native/scripts/codegen/generate-artifacts-executor/generateRCTModuleProviders.js
@@ -43,7 +43,7 @@ function generateRCTModuleProviders(
   codegenLog(`Generated artifact: ${finalPathH}`);
 
   codegenLog('Generating RCTModuleProviders.mm');
-  let modulesInLibraries = {} /*:: as {[string]: Array<$FlowFixMe>}  */;
+  let modulesInLibraries /*: {[string]: Array<$FlowFixMe>} */ = {};
 
   let app = pkgJson.codegenConfig
     ? {config: pkgJson.codegenConfig, libraryPath: projectRoot}
diff --git a/packages/react-native/scripts/codegen/generate-artifacts-executor/generateRCTThirdPartyComponents.js b/packages/react-native/scripts/codegen/generate-artifacts-executor/generateRCTThirdPartyComponents.js
index fdd7e95c3f9..d54bd708c7b 100644
--- a/packages/react-native/scripts/codegen/generate-artifacts-executor/generateRCTThirdPartyComponents.js
+++ b/packages/react-native/scripts/codegen/generate-artifacts-executor/generateRCTThirdPartyComponents.js
@@ -45,7 +45,7 @@ function generateRCTThirdPartyComponents(
   codegenLog(`Generated artifact: ${finalPathH}`);
 
   codegenLog('Generating RCTThirdPartyComponentsProvider.mm');
-  let componentsInLibraries = {} /*:: as {[string]: Array<$FlowFixMe>} */;
+  let componentsInLibraries /*: {[string]: Array<$FlowFixMe>} */ = {};
 
   const componentLibraries = libraries.filter(({config, libraryPath}) => {
     if (isReactNativeCoreLibrary(config.name) || config.type === 'modules') {
@@ -54,7 +54,7 @@ function generateRCTThirdPartyComponents(
     return true;
   });
 
-  const librariesToCrawl = {} /*:: as {[string]: $FlowFixMe} */;
+  const librariesToCrawl /*: {[string]: $FlowFixMe} */ = {};
 
   // Using new API explicitly or not using any config field to define components.
   const componentLibrariesUsingNewApi = [];
diff --git a/packages/react-native/scripts/codegen/generate-artifacts-executor/utils.js b/packages/react-native/scripts/codegen/generate-artifacts-executor/utils.js
index db611c8db17..24bfaa31e34 100644
--- a/packages/react-native/scripts/codegen/generate-artifacts-executor/utils.js
+++ b/packages/react-native/scripts/codegen/generate-artifacts-executor/utils.js
@@ -327,8 +327,8 @@ function isReactNativeCoreLibrary(libraryName /*: string */) /*: boolean */ {
 function parseiOSAnnotations(
   libraries /*: $ReadOnlyArray<$FlowFixMe> */,
 ) /*: {[string]: $FlowFixMe} */ {
-  const mLibraryMap = {} /*:: as {[string]: $FlowFixMe} */;
-  const cLibraryMap = {} /*:: as {[string]: $FlowFixMe} */;
+  const mLibraryMap /*: {[string]: $FlowFixMe} */ = {};
+  const cLibraryMap /*: {[string]: $FlowFixMe} */ = {};
   const map = {};
 
   for (const library of libraries) {
diff --git a/packages/react-native/scripts/codegen/generate-specs-cli-executor.js b/packages/react-native/scripts/codegen/generate-specs-cli-executor.js
index a50afb5e673..78ddd7b0c3e 100644
--- a/packages/react-native/scripts/codegen/generate-specs-cli-executor.js
+++ b/packages/react-native/scripts/codegen/generate-specs-cli-executor.js
@@ -14,20 +14,20 @@ const utils = require('./codegen-utils');
 const fs = require('fs');
 const path = require('path');
 
-const GENERATORS = {
-    all: {
-      android: ['componentsAndroid', 'modulesAndroid', 'modulesCxx'],
-      ios: ['componentsIOS', 'modulesIOS', 'modulesCxx'],
-    },
-    components: {
-      android: ['componentsAndroid'],
-      ios: ['componentsIOS'],
-    },
-    modules: {
-      android: ['modulesAndroid', 'modulesCxx'],
-      ios: ['modulesIOS', 'modulesCxx'],
-    },
-  } /*:: as {[string]: {[string]: $ReadOnlyArray<string>}} */;
+const GENERATORS /*: {[string]: {[string]: $ReadOnlyArray<string>}} */ = {
+  all: {
+    android: ['componentsAndroid', 'modulesAndroid', 'modulesCxx'],
+    ios: ['componentsIOS', 'modulesIOS', 'modulesCxx'],
+  },
+  components: {
+    android: ['componentsAndroid'],
+    ios: ['componentsIOS'],
+  },
+  modules: {
+    android: ['modulesAndroid', 'modulesCxx'],
+    ios: ['modulesIOS', 'modulesCxx'],
+  },
+};
 
 function createOutputDirectoryIfNeeded(
   outputDirectory /*: string */,
diff --git a/packages/react-native/scripts/generate-provider-cli.js b/packages/react-native/scripts/generate-provider-cli.js
index aa9d4acd293..9324da65ae4 100644
--- a/packages/react-native/scripts/generate-provider-cli.js
+++ b/packages/react-native/scripts/generate-provider-cli.js
@@ -34,10 +34,10 @@ const argv = yargs
     'Please provide platform, schema path, and output directory.',
   ).argv;
 
-const GENERATORS = {
-    android: [],
-    ios: ['providerIOS'],
-  } /*:: as {[string]: $ReadOnlyArray<string>} */;
+const GENERATORS /*: {[string]: $ReadOnlyArray<string>} */ = {
+  android: [],
+  ios: ['providerIOS'],
+};
 
 function generateProvider(
   platform /*: string */,
@@ -62,7 +62,7 @@ function generateProvider(
     throw new Error(`Can't parse schema to JSON. ${schemaListPath}`);
   }
 
-  const schemas = {} /*:: as {[string]: $FlowFixMe} */;
+  const schemas /*: {[string]: $FlowFixMe} */ = {};
   try {
     for (const libraryName of Object.keys(schemaPaths)) {
       const tmpSchemaText = fs.readFileSync(schemaPaths[libraryName], 'utf-8');
diff --git a/packages/react-native/scripts/ios-prebuild/hermes.js b/packages/react-native/scripts/ios-prebuild/hermes.js
index e5e67bfcb0a..6b1d0e68dc5 100644
--- a/packages/react-native/scripts/ios-prebuild/hermes.js
+++ b/packages/react-native/scripts/ios-prebuild/hermes.js
@@ -126,11 +126,15 @@ type HermesEngineSourceType =
   | 'download_prebuilt_nightly_tarball'
 */
 
-const HermesEngineSourceTypes = {
-    LOCAL_PREBUILT_TARBALL: 'local_prebuilt_tarball',
-    DOWNLOAD_PREBUILD_TARBALL: 'download_prebuild_tarball',
-    DOWNLOAD_PREBUILT_NIGHTLY_TARBALL: 'download_prebuilt_nightly_tarball',
-  } /*:: as const */;
+const HermesEngineSourceTypes /*:{
+  +DOWNLOAD_PREBUILD_TARBALL: "download_prebuild_tarball",
+  +DOWNLOAD_PREBUILT_NIGHTLY_TARBALL: "download_prebuilt_nightly_tarball",
+  +LOCAL_PREBUILT_TARBALL: "local_prebuilt_tarball"
+} */ = {
+  LOCAL_PREBUILT_TARBALL: 'local_prebuilt_tarball',
+  DOWNLOAD_PREBUILD_TARBALL: 'download_prebuild_tarball',
+  DOWNLOAD_PREBUILT_NIGHTLY_TARBALL: 'download_prebuilt_nightly_tarball',
+} as const;
 
 /**
  * Checks if the Hermes artifacts are already downloaded and up to date with the specified version.
diff --git a/packages/react-native/scripts/ios-prebuild/reactNativeDependencies.js b/packages/react-native/scripts/ios-prebuild/reactNativeDependencies.js
index 6b5880e98c1..8070f99049b 100644
--- a/packages/react-native/scripts/ios-prebuild/reactNativeDependencies.js
+++ b/packages/react-native/scripts/ios-prebuild/reactNativeDependencies.js
@@ -123,10 +123,13 @@ type ReactNativeDependenciesEngineSourceType =
   | 'download_prebuilt_nightly_tarball'
 */
 
-const ReactNativeDependenciesEngineSourceTypes = {
-    DOWNLOAD_PREBUILD_TARBALL: 'download_prebuild_tarball',
-    DOWNLOAD_PREBUILT_NIGHTLY_TARBALL: 'download_prebuilt_nightly_tarball',
-  } /*:: as const */;
+const ReactNativeDependenciesEngineSourceTypes /*: {
+  +DOWNLOAD_PREBUILD_TARBALL: "download_prebuild_tarball",
+  +DOWNLOAD_PREBUILT_NIGHTLY_TARBALL: "download_prebuilt_nightly_tarball"
+} */ = {
+  DOWNLOAD_PREBUILD_TARBALL: 'download_prebuild_tarball',
+  DOWNLOAD_PREBUILT_NIGHTLY_TARBALL: 'download_prebuilt_nightly_tarball',
+};
 
 /**
  * Checks if the ReactNativeDependencies artifacts are already downloaded and up to date with the specified version.
diff --git a/packages/react-native/src/private/animated/__tests__/createAnimatedPropsMemoHook-test.js b/packages/react-native/src/private/animated/__tests__/createAnimatedPropsMemoHook-test.js
index bfc648ac9ee..9b4d3fefa61 100644
--- a/packages/react-native/src/private/animated/__tests__/createAnimatedPropsMemoHook-test.js
+++ b/packages/react-native/src/private/animated/__tests__/createAnimatedPropsMemoHook-test.js
@@ -20,11 +20,11 @@ describe('createCompositeKeyForProps', () => {
     it('excludes non-array and non-object allowlisted props', () => {
       const props = {string: 'abc', number: 123, boolean: true, function() {}};
       const allowlist = {
-          string: true,
-          number: true,
-          boolean: true,
-          function: true,
-        } /*:: as const */;
+        string: true,
+        number: true,
+        boolean: true,
+        function: true,
+      } as const;
       const compositeKey = createCompositeKeyForProps(props, allowlist);
 
       expect(compositeKey).toEqual(null);
@@ -53,8 +53,8 @@ describe('createCompositeKeyForProps', () => {
         bar: new AnimatedEvent([], {useNativeDriver: true}),
       };
       const allowlist = {
-          bar: true,
-        } /*:: as const */;
+        bar: true,
+      } as const;
       const compositeKey = createCompositeKeyForProps(props, allowlist);
 
       expect(compositeKey).toEqual({bar: props.bar});
@@ -69,10 +69,10 @@ describe('createCompositeKeyForProps', () => {
         },
       };
       const allowlist = {
-          style: {
-            baz: true,
-          },
-        } /*:: as const */;
+        style: {
+          baz: true,
+        },
+      } as const;
       const compositeKey = createCompositeKeyForProps(props, allowlist);
 
       expect(compositeKey).toEqual(null);
@@ -84,8 +84,8 @@ describe('createCompositeKeyForProps', () => {
         bar: new AnimatedValue(1),
       };
       const allowlist = {
-          bar: true,
-        } /*:: as const */;
+        bar: true,
+      } as const;
       const compositeKey = createCompositeKeyForProps(props, allowlist);
 
       expect(compositeKey).toEqual({bar: props.bar});
@@ -108,7 +108,7 @@ describe('createCompositeKeyForProps', () => {
       const props = {
         style: {opacity, transform: [{rotateX: 1}, {rotateY}, {rotateZ: 1}]},
       };
-      const allowlist = {style: {transform: true}} /*:: as const */;
+      const allowlist = {style: {transform: true}} as const;
       const compositeKey = createCompositeKeyForProps(props, allowlist);
 
       expect(compositeKey).toEqual({
@@ -126,7 +126,7 @@ describe('createCompositeKeyForProps', () => {
       const props = {
         style: [{opacity: opacityA}, {opacity: opacityB}],
       };
-      const allowlist = {style: {opacity: true}} /*:: as const */;
+      const allowlist = {style: {opacity: true}} as const;
       const compositeKey = createCompositeKeyForProps(props, allowlist);
 
       expect(compositeKey).toEqual({style: {opacity: opacityB}});
diff --git a/scripts/run-ci-javascript-tests.js b/scripts/run-ci-javascript-tests.js
index e0e2b229346..f77661090b7 100644
--- a/scripts/run-ci-javascript-tests.js
+++ b/scripts/run-ci-javascript-tests.js
@@ -20,13 +20,14 @@
  */
 
 const {execSync} = require('child_process');
-// $FlowFixMe[unclear-type]
-const argv = require('yargs').argv /*:: as any as $ReadOnly<{
+const argv /*:$ReadOnly<{
   maxWorkers?: number,
   jestBinary?: string,
   flowBinary?: string,
   yarnBinary?: string,
-}> */;
+}> */ =
+  // $FlowFixMe
+  require('yargs').argv;
 
 const numberOfMaxWorkers = argv.maxWorkers ?? 1;
 
diff --git a/yarn.lock b/yarn.lock
index d30678ea8cf..56412385c7c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7996,14 +7996,10 @@ prelude-ls@^1.2.1:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.2.1.tgz#debc6489d7a6e6b0e7611888cec880337d316396"
   integrity sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==
 
-prettier-plugin-hermes-parser@0.30.0:
-  version "0.30.0"
-  resolved "https://registry.yarnpkg.com/prettier-plugin-hermes-parser/-/prettier-plugin-hermes-parser-0.30.0.tgz#2f7b5e8cba5f632a2010f5bb4cd574a9403631d1"
-  integrity sha512-hnNObP7pIrCfkX75jzcYxwwWOMCadR4O+Q48VLQ09Ly2V3np5eSBfs2Owo4xbrIZoULQS5/hZWrmcW/F2PNiSQ==
-  dependencies:
-    hermes-estree "0.30.0"
-    hermes-parser "0.30.0"
-    prettier-plugin-hermes-parser "0.30.0"
+prettier-plugin-hermes-parser@0.31.1:
+  version "0.31.1"
+  resolved "https://registry.yarnpkg.com/prettier-plugin-hermes-parser/-/prettier-plugin-hermes-parser-0.31.1.tgz#950f14274ba6d5d39d152cdb25ea67c107b9b467"
+  integrity sha512-h98zphVpGyil1qXUP70jmD2SLMqsdah2Ys6Ap/f3zbKXJU5U91mtI+egxyTXtDasIL8Jp9awmUVLkzkyfimUNQ==
 
 prettier@3.6.2:
   version "3.6.2"