diff --git a/docs/docs/getting-started/configuration-nitro-json.md b/docs/docs/getting-started/configuration-nitro-json.md
index 4ed9639656..9129682a3c 100644
--- a/docs/docs/getting-started/configuration-nitro-json.md
+++ b/docs/docs/getting-started/configuration-nitro-json.md
@@ -10,6 +10,7 @@ description: Configure nitro.json for a React Native Nitro Module, including C++
 ```json
 {
   "$schema": "https://nitro.margelo.com/nitro.schema.json",
+  "environment": "react-native",
   "cxxNamespace": ["$$cxxNamespace$$"],
   "ios": {
     "iosModuleName": "$$iosModuleName$$"
@@ -25,6 +26,15 @@ description: Configure nitro.json for a React Native Nitro Module, including C++
 
 Nitrogen parses this file with Zod, see [`NitroUserConfig.ts`](https://github.com/margelo/nitro/blob/main/packages/nitrogen/src/config/NitroUserConfig.ts) for more information.
 
+## `environment`
+
+Selects the package that generated JavaScript code imports Nitro APIs from:
+
+- `"react-native"` (default): imports from `react-native-nitro-modules`, which installs Nitro in the React Native runtime.
+- `"bare"`: imports from `nitro-core` for standalone runtimes.
+
+This setting only changes the JavaScript imports. Native code generation is the same for both environments.
+
 ## `cxxNamespace`
 
 The `cxxNamespace` is the C++ namespace that all C++ specs will be generated in. It is always relative to `margelo::nitro`, and can also have multiple sub-namespaces:
diff --git a/docs/static/nitro.schema.json b/docs/static/nitro.schema.json
index 6fa69e40df..7aab05cd14 100644
--- a/docs/static/nitro.schema.json
+++ b/docs/static/nitro.schema.json
@@ -9,6 +9,15 @@
     "autolinking"
   ],
   "properties": {
+    "environment": {
+      "type": "string",
+      "enum": [
+        "react-native",
+        "bare"
+      ],
+      "default": "react-native",
+      "description": "Selects the package imported by generated JavaScript runtime modules: react-native-nitro-modules for react-native, or nitro-core for bare."
+    },
     "cxxNamespace": {
       "type": "array",
       "items": {
diff --git a/packages/nitrogen/src/config/NitroConfig.ts b/packages/nitrogen/src/config/NitroConfig.ts
index 8019a6d028..cd8e5a7d50 100644
--- a/packages/nitrogen/src/config/NitroConfig.ts
+++ b/packages/nitrogen/src/config/NitroConfig.ts
@@ -27,6 +27,13 @@ export class NitroConfig {
     return this.singleton
   }
 
+  /** Returns the package to import Nitro's JavaScript runtime from. */
+  getRuntimePackageName(): string {
+    return this.config.environment === 'react-native'
+      ? 'react-native-nitro-modules'
+      : 'nitro-core'
+  }
+
   /**
    * Returns the name of the Android C++ library (aka name in CMakeLists.txt `add_library(..)`).
    * This will be loaded via `System.loadLibrary(...)`.
diff --git a/packages/nitrogen/src/config/NitroUserConfig.ts b/packages/nitrogen/src/config/NitroUserConfig.ts
index 902b7b20e0..1b69d5578a 100644
--- a/packages/nitrogen/src/config/NitroUserConfig.ts
+++ b/packages/nitrogen/src/config/NitroUserConfig.ts
@@ -10,6 +10,11 @@ const isReservedKeywordError = {
 }
 
 export const NitroUserConfigSchema = z.object({
+  /**
+   * Selects the package imported by generated JavaScript runtime modules.
+   * React Native uses `react-native-nitro-modules`; bare uses `nitro-core`.
+   */
+  environment: z.enum(['react-native', 'bare']).default('react-native'),
   /**
    * Represents the C++ namespace of the module that will be generated.
    *
@@ -76,9 +81,12 @@ export const NitroUserConfigSchema = z.object({
    */
   ignorePaths: z.array(z.string()).optional(),
   /** Removed in favor of implementation and constructor declarations in .nitro.ts. */
-  autolinking: z.never({
-    error: 'autolinking has moved to .nitro.ts: declare implementation in each platform and a public constructor to enable new.',
-  }).optional(),
+  autolinking: z
+    .never({
+      error:
+        'autolinking has moved to .nitro.ts: declare implementation in each platform and a public constructor to enable new.',
+    })
+    .optional(),
 })
 
 /**
diff --git a/packages/nitrogen/src/config/getConfig.ts b/packages/nitrogen/src/config/getConfig.ts
index efe4f5679c..3734d2e0b0 100644
--- a/packages/nitrogen/src/config/getConfig.ts
+++ b/packages/nitrogen/src/config/getConfig.ts
@@ -65,8 +65,8 @@ function parseConfig(json: string): NitroUserConfig {
         const prop = propPathToString(i.path)
         switch (i.code) {
           case 'invalid_type':
-            return `\`${prop}\`: ${i.message}`
           case 'invalid_value':
+            return `\`${prop}\`: ${i.message}`
           case 'invalid_union':
           case 'invalid_element':
             return `\`${prop}\` is not a valid & safe string. It must only contain alphanumeric characters and must not start with a number.`
diff --git a/packages/nitrogen/src/createHybridClassRuntime.ts b/packages/nitrogen/src/createHybridClassRuntime.ts
index ab920fc9e1..0d0968cd06 100644
--- a/packages/nitrogen/src/createHybridClassRuntime.ts
+++ b/packages/nitrogen/src/createHybridClassRuntime.ts
@@ -175,7 +175,7 @@ export {}
     const jsCode = `
 ${createFileMetadataString(jsFileName)}
 
-const { NitroModules } = require('nitro-core')
+const { NitroModules } = require('${NitroConfig.current.getRuntimePackageName()}')
 
 ${cacheComment}
 ${cacheDeclarationsCode.join('\n')}
diff --git a/packages/template/nitro.json b/packages/template/nitro.json
index c9df39b3a3..28074c9592 100644
--- a/packages/template/nitro.json
+++ b/packages/template/nitro.json
@@ -1,5 +1,6 @@
 {
   "$schema": "https://nitro.margelo.com/nitro.schema.json",
+  "environment": "react-native",
   "cxxNamespace": ["$$cxxNamespace$$"],
   "ios": {
     "iosModuleName": "$$iosModuleName$$"
diff --git a/scripts/releases/check-consumer.mjs b/scripts/releases/check-consumer.mjs
index 4d7e1b46b0..119e940ad6 100644
--- a/scripts/releases/check-consumer.mjs
+++ b/scripts/releases/check-consumer.mjs
@@ -131,6 +131,7 @@ export function checkConsumer(tarballs) {
     include: ["*.ts", "*.mts"],
   });
   writeJSON(path.join(consumer, "nitro.json"), {
+    environment: "bare",
     cxxNamespace: ["releasecheck"],
     ios: { iosModuleName: "ReleaseCheck" },
     android: {
@@ -156,6 +157,14 @@ export function checkConsumer(tarballs) {
   );
   if (!existsSync(header) || !readFileSync(header, "utf8").includes("add("))
     throw new Error("Packed Nitrogen did not generate the consumer spec");
+  run(
+    "node",
+    [
+      "-e",
+      `${mockRuntime} if (typeof require('#nitro/Math').Math !== 'function') throw Error('Generated HybridObject class is missing')`,
+    ],
+    { cwd: consumer },
+  );
   console.log(`Validated packed core packages in ${consumer}`);
   checkReactNativeConsumer(packed, version);
 }
@@ -232,21 +241,19 @@ function checkReactNativeConsumer(packed, version) {
     ),
   );
   writeJSON(path.join(consumer, "nitro.json"), config);
-  run("node", ["node_modules/typescript/bin/tsc", "--noEmit"], {
-    cwd: consumer,
-  });
   run(
     "node",
     ["node_modules/nitrogen/lib/index.js", "--log-level", "warning"],
     { cwd: consumer },
   );
+  run("node", ["node_modules/typescript/bin/tsc", "--noEmit"], {
+    cwd: consumer,
+  });
   for (const file of [
     "shared/c++/views/HybridTestViewComponent.cpp",
     "shared/c++/include/NitroTest/HybridBenchmarkObjectCppSpec.hpp",
     "ios/swift/HybridBenchmarkObjectSwiftKotlinSpec.swift",
-    "android/kotlin/com/margelo/nitro/test/HybridBenchmarkObjectSwiftKotlinSpec.kt",
     "ios/swift/HybridTestViewSpec.swift",
-    "android/kotlin/com/margelo/nitro/test/HybridTestViewSpec.kt",
   ]) {
     if (!existsSync(path.join(consumer, "nitrogen/generated", file)))
       throw new Error(`Packed Nitrogen did not generate ${file}`);
diff --git a/tests/react-native/packages/react-native-nitro-test-external/nitro.json b/tests/react-native/packages/react-native-nitro-test-external/nitro.json
index 9a9f21bde7..6d68280560 100644
--- a/tests/react-native/packages/react-native-nitro-test-external/nitro.json
+++ b/tests/react-native/packages/react-native-nitro-test-external/nitro.json
@@ -1,5 +1,6 @@
 {
   "$schema": "https://nitro.margelo.com/nitro.schema.json",
+  "environment": "react-native",
   "cxxNamespace": [
     "test",
     "external"
diff --git a/tests/react-native/packages/react-native-nitro-test-external/nitrogen/generated/shared/javascript/TestView.cjs b/tests/react-native/packages/react-native-nitro-test-external/nitrogen/generated/shared/javascript/TestView.cjs
index 46d4e72d3b..d16a928393 100644
--- a/tests/react-native/packages/react-native-nitro-test-external/nitrogen/generated/shared/javascript/TestView.cjs
+++ b/tests/react-native/packages/react-native-nitro-test-external/nitrogen/generated/shared/javascript/TestView.cjs
@@ -5,7 +5,7 @@
 /// Copyright © Marc Rousavy @ Margelo
 ///
 
-const { NitroModules } = require('nitro-core')
+const { NitroModules } = require('react-native-nitro-modules')
 
 // Copies of these getters, e.g. from Babel's interop helpers, share the caches.
 let hybridClass
diff --git a/tests/react-native/packages/react-native-nitro-test/nitro.json b/tests/react-native/packages/react-native-nitro-test/nitro.json
index 49de44095d..40548e0bcc 100644
--- a/tests/react-native/packages/react-native-nitro-test/nitro.json
+++ b/tests/react-native/packages/react-native-nitro-test/nitro.json
@@ -1,5 +1,6 @@
 {
   "$schema": "https://nitro.margelo.com/nitro.schema.json",
+  "environment": "react-native",
   "cxxNamespace": [
     "test"
   ],
diff --git a/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/BenchmarkObjectCpp.cjs b/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/BenchmarkObjectCpp.cjs
index 054ced2c4e..765fd600bb 100644
--- a/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/BenchmarkObjectCpp.cjs
+++ b/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/BenchmarkObjectCpp.cjs
@@ -5,7 +5,7 @@
 /// Copyright © Marc Rousavy @ Margelo
 ///
 
-const { NitroModules } = require('nitro-core')
+const { NitroModules } = require('react-native-nitro-modules')
 
 // Copies of this getter, e.g. from Babel's interop helpers, share the cached class.
 let hybridClass
diff --git a/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/BenchmarkObjectSwiftKotlin.cjs b/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/BenchmarkObjectSwiftKotlin.cjs
index 0fcf0bda5b..988b3a5a5e 100644
--- a/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/BenchmarkObjectSwiftKotlin.cjs
+++ b/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/BenchmarkObjectSwiftKotlin.cjs
@@ -5,7 +5,7 @@
 /// Copyright © Marc Rousavy @ Margelo
 ///
 
-const { NitroModules } = require('nitro-core')
+const { NitroModules } = require('react-native-nitro-modules')
 
 // Copies of this getter, e.g. from Babel's interop helpers, share the cached class.
 let hybridClass
diff --git a/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/RecyclableTestView.cjs b/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/RecyclableTestView.cjs
index 7baefab8c1..e96af40df5 100644
--- a/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/RecyclableTestView.cjs
+++ b/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/RecyclableTestView.cjs
@@ -5,7 +5,7 @@
 /// Copyright © Marc Rousavy @ Margelo
 ///
 
-const { NitroModules } = require('nitro-core')
+const { NitroModules } = require('react-native-nitro-modules')
 
 // Copies of these getters, e.g. from Babel's interop helpers, share the caches.
 let hybridClass
diff --git a/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/TestView.cjs b/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/TestView.cjs
index 6e5de33c4f..dd4c358862 100644
--- a/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/TestView.cjs
+++ b/tests/react-native/packages/react-native-nitro-test/nitrogen/generated/shared/javascript/TestView.cjs
@@ -5,7 +5,7 @@
 /// Copyright © Marc Rousavy @ Margelo
 ///
 
-const { NitroModules } = require('nitro-core')
+const { NitroModules } = require('react-native-nitro-modules')
 
 // Copies of these getters, e.g. from Babel's interop helpers, share the caches.
 let hybridClass
diff --git a/tests/standalone/nitro-test-external/nitro.json b/tests/standalone/nitro-test-external/nitro.json
index a6c30b64a3..14d07905f4 100644
--- a/tests/standalone/nitro-test-external/nitro.json
+++ b/tests/standalone/nitro-test-external/nitro.json
@@ -1,5 +1,6 @@
 {
   "$schema": "https://nitro.margelo.com/nitro.schema.json",
+  "environment": "bare",
   "cxxNamespace": [
     "test",
     "external"
diff --git a/tests/standalone/nitro-test/nitro.json b/tests/standalone/nitro-test/nitro.json
index c447bfce2a..3d04ecc903 100644
--- a/tests/standalone/nitro-test/nitro.json
+++ b/tests/standalone/nitro-test/nitro.json
@@ -1,5 +1,6 @@
 {
   "$schema": "https://nitro.margelo.com/nitro.schema.json",
+  "environment": "bare",
   "cxxNamespace": [
     "test"
   ],