diff --git a/package.json b/package.json
index 95d5ff903468f..e865921cf0da7 100644
--- a/package.json
+++ b/package.json
@@ -71,6 +71,7 @@
     "gzip-size": "^5.1.1",
     "hermes-eslint": "^0.20.1",
     "hermes-parser": "^0.20.1",
+    "hermes-transform": "^0.20.1",
     "jest": "^29.4.2",
     "jest-cli": "^29.4.2",
     "jest-diff": "^29.4.2",
@@ -132,6 +133,7 @@
     "download-build-for-head": "node ./scripts/release/download-experimental-build.js --commit=$(git rev-parse HEAD)",
     "download-build-in-codesandbox-ci": "cd scripts/release && yarn install && cd ../../ && yarn download-build-for-head || yarn build --type=node react/index react-dom/index react-dom/src/server react-dom/test-utils scheduler/index react/jsx-runtime react/jsx-dev-runtime",
     "check-release-dependencies": "node ./scripts/release/check-release-dependencies",
+    "codemod": "flow-node scripts/codemod/index.js",
     "generate-inline-fizz-runtime": "node ./scripts/rollup/generate-inline-fizz-runtime.js",
     "flags": "node ./scripts/flags/flags.js"
   },
diff --git a/scripts/codemod/index.js b/scripts/codemod/index.js
new file mode 100644
index 0000000000000..acecde9fc1134
--- /dev/null
+++ b/scripts/codemod/index.js
@@ -0,0 +1,262 @@
+/**
+ * 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.
+ *
+ * @flow
+ */
+
+import type {
+  ESNode,
+  IfStatement,
+  Statement,
+  ImportDeclaration,
+  LogicalExpression,
+  CallExpression,
+  ConditionalExpression,
+  UnaryExpression,
+  Identifier,
+  MemberExpression,
+} from 'hermes-estree';
+import type {TransformContext} from 'hermes-transform';
+
+const {transform, t} = require('hermes-transform');
+const {SimpleTraverser} = require('hermes-parser');
+const Glob = require('glob');
+const {readFileSync, writeFileSync} = require('fs');
+const Prettier = require('prettier');
+
+/* eslint-disable no-for-of-loops/no-for-of-loops */
+
+function createReplaceFlagWithValue(flagName: string, flagValue: boolean) {
+  return function replaceFlagWithValue(context: TransformContext) {
+    return {
+      ImportDeclaration(node: ImportDeclaration) {
+        context.skipTraversal();
+      },
+      Identifier(node: Identifier) {
+        if (node.parent.type === 'VariableDeclarator') {
+          return;
+        }
+        if (node.type === 'Identifier' && node.name === flagName) {
+          context.replaceNode(node, t.BooleanLiteral({value: flagValue}));
+        }
+      },
+      MemberExpression(node: MemberExpression) {
+        if (
+          node.object.type === 'Identifier' &&
+          node.object.name === 'flags' &&
+          node.property.type === 'Identifier' &&
+          node.property.name === flagName
+        ) {
+          context.replaceNode(node, t.BooleanLiteral({value: flagValue}));
+          context.skipTraversal();
+        }
+      },
+    };
+  };
+}
+
+function simplifyNotBoolean(context: TransformContext) {
+  return {
+    UnaryExpression(node: UnaryExpression) {
+      if (node.operator === '!' && node.argument.type === 'Literal') {
+        context.replaceNode(
+          node,
+          t.BooleanLiteral({value: !node.argument.value})
+        );
+      }
+    },
+  };
+}
+
+function simplifyGate(context: TransformContext) {
+  return {
+    CallExpression(node: CallExpression) {
+      if (
+        node.callee.type === 'Identifier' &&
+        node.callee.name === 'gate' &&
+        node.arguments.length === 1 &&
+        node.arguments[0].type === 'ArrowFunctionExpression' &&
+        node.arguments[0].body.type === 'Literal'
+      ) {
+        context.replaceNode(node, node.arguments[0].body);
+      }
+    },
+  };
+}
+
+function simplifyLogicalExpression(context: TransformContext) {
+  return {
+    LogicalExpression(node: LogicalExpression) {
+      if (
+        node.operator === '&&' &&
+        node.left.type === 'Literal' &&
+        node.left.value === true
+      ) {
+        context.replaceNode(node, node.right);
+      }
+      if (
+        node.operator === '&&' &&
+        node.left.type === 'Literal' &&
+        node.left.value === false
+      ) {
+        context.replaceNode(node, node.left);
+      }
+      if (
+        node.operator === '&&' &&
+        node.right.type === 'Literal' &&
+        node.right.value === true
+      ) {
+        context.replaceNode(node, node.left);
+      }
+      if (
+        node.operator === '||' &&
+        node.left.type === 'Literal' &&
+        node.left.value === false
+      ) {
+        context.replaceNode(node, node.right);
+      }
+      if (
+        node.operator === '||' &&
+        node.right.type === 'Literal' &&
+        node.right.value === false
+      ) {
+        context.replaceNode(node, node.left);
+      }
+    },
+  };
+}
+
+function simplifyTernary(context: TransformContext) {
+  return {
+    ConditionalExpression(node: ConditionalExpression) {
+      if (node.test.type === 'Literal' && node.test.value === true) {
+        context.replaceNode(node, node.consequent);
+      }
+      if (node.test.type === 'Literal' && node.test.value === false) {
+        context.replaceNode(node, node.alternate);
+      }
+    },
+  };
+}
+
+function simplifyCondition(context: TransformContext) {
+  let lastParent: ?ESNode = null;
+  return {
+    IfStatement(node: IfStatement) {
+      if (node.parent === lastParent) {
+        // a bug in hermes-transform prevents multiple replaceStatementWithMany
+        // with the same parent
+        return;
+      }
+      if (node.test.type === 'Literal' && node.test.value === true) {
+        lastParent = node.parent;
+        context.replaceStatementWithMany(
+          node,
+          unwrapBlockStatment(node.consequent)
+        );
+      }
+      if (node.test.type === 'Literal' && node.test.value === false) {
+        lastParent = node.parent;
+        if (node.alternate == null) {
+          context.removeStatement(node);
+        } else {
+          context.replaceStatementWithMany(
+            node,
+            unwrapBlockStatment(node.alternate)
+          );
+        }
+      }
+    },
+  };
+}
+
+function unwrapBlockStatment(statement: Statement): $ReadOnlyArray<Statement> {
+  return statement.type === 'BlockStatement' ? statement.body : [statement];
+}
+
+async function transformFile(
+  filename: string,
+  flagName: string,
+  flagValue: boolean
+) {
+  const originalCode = readFileSync(filename, 'utf8');
+  if (!originalCode.includes(flagName)) {
+    return false;
+  }
+  const prettierConfig = await Prettier.resolveConfig(filename);
+  let transformedCode = originalCode;
+  transformedCode = transformedCode.replaceAll(`// @gate ${flagName}\n`, '');
+  transformedCode = transformedCode.replaceAll(
+    `// @gate ${flagName} && `,
+    '// @gate '
+  );
+  transformedCode = transformedCode.replaceAll(
+    `// @gate ${flagName} || `,
+    '// XXX REMOVE XXX'
+  );
+  for (const createVisitors of [
+    createReplaceFlagWithValue(flagName, flagValue),
+    simplifyNotBoolean,
+    simplifyGate,
+    simplifyLogicalExpression,
+    simplifyLogicalExpression,
+    simplifyTernary,
+    simplifyCondition,
+    simplifyCondition,
+    simplifyCondition,
+  ]) {
+    transformedCode = await transform(
+      transformedCode,
+      createVisitors,
+      prettierConfig
+    );
+  }
+  if (originalCode !== transformedCode) {
+    writeFileSync(filename, transformedCode, 'utf8');
+    return true;
+  }
+  return false;
+}
+
+async function main(args: $ReadOnlyArray<string>) {
+  if (args.length < 1) {
+    console.error('Usage: yarn codemod <PATTERNS>');
+    process.exit(1);
+  }
+  const {FLAG_NAME: flagName, FLAG_VALUE: flagValue} = process.env;
+
+  if (flagName == null || flagValue == null) {
+    console.error('Please set FLAG_NAME and FLAG_VALUE environment variables');
+    process.exit(1);
+    return;
+  }
+
+  let flagValueBoolean = flagValue !== 'false';
+
+  const files = new Set<string>();
+  for (const arg of args) {
+    for (const file of Glob.sync(arg)) {
+      files.add(file);
+    }
+  }
+  let updatedCount = 0;
+  for (const file of files) {
+    try {
+      const updated = await transformFile(file, flagName, flagValueBoolean);
+      if (updated) {
+        updatedCount++;
+        console.log(`updated ${file}`);
+      }
+    } catch (err) {
+      console.log(`Error transforming ${file}`, err);
+    }
+  }
+  console.log(`${files.size} processed, ${updatedCount} updated`);
+}
+
+main(process.argv.slice(2)).catch(err => {
+  console.error('Error while transforming:', err);
+});
diff --git a/scripts/shared/pathsByLanguageVersion.js b/scripts/shared/pathsByLanguageVersion.js
index 10c49821af5e9..07909da7c4c5f 100644
--- a/scripts/shared/pathsByLanguageVersion.js
+++ b/scripts/shared/pathsByLanguageVersion.js
@@ -20,6 +20,7 @@ const esNextPaths = [
   'packages/react-interactions/**/*.js',
   'packages/shared/**/*.js',
   // Shims and Flow environment
+  'scripts/codemod/*.js',
   'scripts/flow/*.js',
   'scripts/rollup/shims/**/*.js',
 ];
diff --git a/yarn.lock b/yarn.lock
index 71c9174c1c238..e1d51adfacc2b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6997,6 +6997,7 @@ eslint-plugin-no-unsanitized@3.1.2:
 
 "eslint-plugin-react-internal@link:./scripts/eslint-rules":
   version "0.0.0"
+  uid ""
 
 eslint-plugin-react@^6.7.1:
   version "6.10.3"
@@ -7961,6 +7962,11 @@ flow-bin@^0.231.0:
   resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.231.0.tgz#b9fde021e60ff6e40e4f0212b6c426fdde798ac7"
   integrity sha512-nB5/rH+bUCIAXWagwIEYM0q/2M4mgkD5q16/eZyNx7sfqsmMkZLg0KmPH5hgvzq6PkVoeCoM8sjhPyzLW2wT+w==
 
+flow-enums-runtime@^0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/flow-enums-runtime/-/flow-enums-runtime-0.0.6.tgz#5bb0cd1b0a3e471330f4d109039b7eba5cb3e787"
+  integrity sha512-3PYnM29RFXwvAN6Pc/scUfkI7RwhQ/xqyLUyPNlXUp9S40zI8nup9tUSrTLSVnWGBN38FNiGWbwZOB6uR4OGdw==
+
 flow-remove-types@^2.231.0:
   version "2.231.0"
   resolved "https://registry.yarnpkg.com/flow-remove-types/-/flow-remove-types-2.231.0.tgz#64f9a99fd13b3614e28e75b1c55cb2a1f479571e"
@@ -8694,7 +8700,7 @@ has@^1.0.1, has@^1.0.3:
   dependencies:
     function-bind "^1.1.1"
 
-hermes-eslint@^0.20.1:
+hermes-eslint@0.20.1, hermes-eslint@^0.20.1:
   version "0.20.1"
   resolved "https://registry.yarnpkg.com/hermes-eslint/-/hermes-eslint-0.20.1.tgz#4a731b47a6d169bbd4514aaa74bd812fd90f3554"
   integrity sha512-EhdvFV6RkPIJvbqN8oqFZO1oF4NlPWMjhMjCWkUJX1YL1MZMfkF7nSdx6RKTq6xK17yo+Bgv88L21xuH9GtRpw==
@@ -8715,6 +8721,18 @@ hermes-parser@0.20.1, hermes-parser@^0.20.1:
   dependencies:
     hermes-estree "0.20.1"
 
+hermes-transform@^0.20.1:
+  version "0.20.1"
+  resolved "https://registry.yarnpkg.com/hermes-transform/-/hermes-transform-0.20.1.tgz#910bd0ea7cc58eca4c0acadb413d779b70dd3803"
+  integrity sha512-gpetyzAQvuLXVWIk8/I2A/ei/5+o8eT+QuSGd8FcWpXoYxVkYjVKLVNE9xKLsEkk2wQ1tXODY5OeOZoaz9jL7Q==
+  dependencies:
+    "@babel/code-frame" "^7.16.0"
+    esquery "^1.4.0"
+    flow-enums-runtime "^0.0.6"
+    hermes-eslint "0.20.1"
+    hermes-estree "0.20.1"
+    hermes-parser "0.20.1"
+
 homedir-polyfill@^1.0.0, homedir-polyfill@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/homedir-polyfill/-/homedir-polyfill-1.0.3.tgz#743298cef4e5af3e194161fbadcc2151d3a058e8"
@@ -12991,7 +13009,7 @@ rc@^1.0.1, rc@^1.1.6, rc@^1.2.8:
     object-assign "^4.1.1"
     scheduler "^0.20.2"
 
-react-is@^16.8.1, react-is@^17.0.1, "react-is@npm:react-is":
+react-is@^16.8.1, react-is@^17.0.1, react-is@^18.0.0, react-is@^18.2.0, "react-is@npm:react-is":
   version "17.0.2"
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-17.0.2.tgz#e691d4a8e9c789365655539ab372762b0efb54f0"
   integrity sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w==
@@ -14458,7 +14476,7 @@ string-natural-compare@^3.0.1:
   resolved "https://registry.yarnpkg.com/string-natural-compare/-/string-natural-compare-3.0.1.tgz#7a42d58474454963759e8e8b7ae63d71c1e7fdf4"
   integrity sha512-n3sPwynL1nwKi3WJ6AIsClwBMa0zTi54fn2oLU6ndfTSIO05xaznjSf15PcBZU6FNWbmN5Q6cxT4V5hGvB4taw==
 
-"string-width-cjs@npm:string-width@^4.2.0", string-width@^4.2.3:
+"string-width-cjs@npm:string-width@^4.2.0":
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
   integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
@@ -14493,6 +14511,15 @@ string-width@^4.0.0, string-width@^4.1.0, string-width@^4.2.0:
     is-fullwidth-code-point "^3.0.0"
     strip-ansi "^6.0.0"
 
+string-width@^4.2.3:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
+  integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
+  dependencies:
+    emoji-regex "^8.0.0"
+    is-fullwidth-code-point "^3.0.0"
+    strip-ansi "^6.0.1"
+
 string-width@^5.0.1, string-width@^5.1.2:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-5.1.2.tgz#14f8daec6d81e7221d2a357e668cab73bdbca794"
@@ -14553,7 +14580,7 @@ string_decoder@~1.1.1:
   dependencies:
     safe-buffer "~5.1.0"
 
-"strip-ansi-cjs@npm:strip-ansi@^6.0.1", strip-ansi@^6.0.1:
+"strip-ansi-cjs@npm:strip-ansi@^6.0.1":
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
   integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
@@ -14588,6 +14615,13 @@ strip-ansi@^6.0.0:
   dependencies:
     ansi-regex "^5.0.0"
 
+strip-ansi@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
+  integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
+  dependencies:
+    ansi-regex "^5.0.1"
+
 strip-ansi@^7.0.1:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-7.1.0.tgz#d5b6568ca689d8561370b0707685d22434faff45"
@@ -16023,7 +16057,7 @@ workerize-loader@^2.0.2:
   dependencies:
     loader-utils "^2.0.0"
 
-"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0", wrap-ansi@^7.0.0:
+"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
   integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
@@ -16041,6 +16075,15 @@ wrap-ansi@^6.2.0:
     string-width "^4.1.0"
     strip-ansi "^6.0.0"
 
+wrap-ansi@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
+  integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
+  dependencies:
+    ansi-styles "^4.0.0"
+    string-width "^4.1.0"
+    strip-ansi "^6.0.0"
+
 wrap-ansi@^8.1.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-8.1.0.tgz#56dc22368ee570face1b49819975d9b9a5ead214"