diff --git a/Libraries/Image/RelativeImageStub.js b/Libraries/Image/RelativeImageStub.js
index 40c30d3c8..b788548b6 100644
--- a/Libraries/Image/RelativeImageStub.js
+++ b/Libraries/Image/RelativeImageStub.js
@@ -12,7 +12,7 @@
 'use strict';
 
 // This is a stub for flow to make it understand require('./icon.png')
-// See packager/react-packager/src/Bundler/index.js
+// See packager/src/Bundler/index.js
 
 var AssetRegistry = require('AssetRegistry');
 
diff --git a/jest/preprocessor.js b/jest/preprocessor.js
index 2d32c4b46..1c48ccdb1 100644
--- a/jest/preprocessor.js
+++ b/jest/preprocessor.js
@@ -15,7 +15,7 @@ const path = require('path');
 
 const nodeFiles = RegExp([
   '/local-cli/',
-  '/packager/(?!react-packager/src/Resolver/polyfills/)',
+  '/packager/(?!src/Resolver/polyfills/)',
 ].join('|'));
 const nodeOptions = babelRegisterOnly.config([nodeFiles]);
 
diff --git a/jest/setup.js b/jest/setup.js
index 432762b5c..c8fbe8114 100644
--- a/jest/setup.js
+++ b/jest/setup.js
@@ -10,9 +10,9 @@
 
 const mockComponent = require.requireActual('./mockComponent');
 
-require.requireActual('../packager/react-packager/src/Resolver/polyfills/babelHelpers.js');
-require.requireActual('../packager/react-packager/src/Resolver/polyfills/Object.es7.js');
-require.requireActual('../packager/react-packager/src/Resolver/polyfills/error-guard');
+require.requireActual('../packager/src/Resolver/polyfills/babelHelpers.js');
+require.requireActual('../packager/src/Resolver/polyfills/Object.es7.js');
+require.requireActual('../packager/src/Resolver/polyfills/error-guard');
 
 global.__DEV__ = true;
 
diff --git a/local-cli/bundle/buildBundle.js b/local-cli/bundle/buildBundle.js
index c0340b053..df038d3e9 100644
--- a/local-cli/bundle/buildBundle.js
+++ b/local-cli/bundle/buildBundle.js
@@ -12,8 +12,8 @@
 'use strict';
 
 const log = require('../util/log').out('bundle');
-const Server = require('../../packager/react-packager/src/Server');
-const TerminalReporter = require('../../packager/react-packager/src/lib/TerminalReporter');
+const Server = require('../../packager/src/Server');
+const TerminalReporter = require('../../packager/src/lib/TerminalReporter');
 
 const outputBundle = require('./output/bundle');
 const path = require('path');
diff --git a/local-cli/bundle/output/bundle.js b/local-cli/bundle/output/bundle.js
index 75e5ae9e1..c4b6effe1 100644
--- a/local-cli/bundle/output/bundle.js
+++ b/local-cli/bundle/output/bundle.js
@@ -11,11 +11,11 @@
 'use strict';
 
 const meta = require('./meta');
-const relativizeSourceMap = require('../../../packager/react-packager/src/lib/relativizeSourceMap');
+const relativizeSourceMap = require('../../../packager/src//lib/relativizeSourceMap');
 const writeFile = require('./writeFile');
 
-import type Bundle from '../../../packager/react-packager/src/Bundler/Bundle';
-import type Server from '../../../packager/react-packager/src/Server';
+import type Bundle from '../../../packager/src//Bundler/Bundle';
+import type Server from '../../../packager/src//Server';
 import type {OutputOptions, RequestOptions} from '../types.flow';
 
 function buildBundle(packagerClient: Server, requestOptions: RequestOptions) {
diff --git a/local-cli/bundle/output/unbundle/as-assets.js b/local-cli/bundle/output/unbundle/as-assets.js
index 5177dbc43..43afcf7b0 100644
--- a/local-cli/bundle/output/unbundle/as-assets.js
+++ b/local-cli/bundle/output/unbundle/as-assets.js
@@ -15,13 +15,13 @@ const MAGIC_UNBUNDLE_NUMBER = require('./magic-number');
 const buildSourceMapWithMetaData = require('./build-unbundle-sourcemap-with-metadata');
 const mkdirp = require('mkdirp');
 const path = require('path');
-const relativizeSourceMap = require('../../../../packager/react-packager/src/lib/relativizeSourceMap');
+const relativizeSourceMap = require('../../../../packager/src//lib/relativizeSourceMap');
 const writeFile = require('../writeFile');
 const writeSourceMap = require('./write-sourcemap');
 
 const {joinModules} = require('./util');
 
-import type Bundle from '../../../../packager/react-packager/src/Bundler/Bundle';
+import type Bundle from '../../../../packager/src//Bundler/Bundle';
 import type {OutputOptions} from '../../types.flow';
 
 // must not start with a dot, as that won't go into the apk
diff --git a/local-cli/bundle/output/unbundle/as-indexed-file.js b/local-cli/bundle/output/unbundle/as-indexed-file.js
index 5280158ea..7b7fb57ec 100644
--- a/local-cli/bundle/output/unbundle/as-indexed-file.js
+++ b/local-cli/bundle/output/unbundle/as-indexed-file.js
@@ -14,12 +14,12 @@ const MAGIC_UNBUNDLE_FILE_HEADER = require('./magic-number');
 
 const buildSourceMapWithMetaData = require('./build-unbundle-sourcemap-with-metadata');
 const fs = require('fs');
-const relativizeSourceMap = require('../../../../packager/react-packager/src/lib/relativizeSourceMap');
+const relativizeSourceMap = require('../../../../packager/src//lib/relativizeSourceMap');
 const writeSourceMap = require('./write-sourcemap');
 
 const {joinModules} = require('./util');
 
-import type ModuleTransport from '../../../../packager/react-packager/src/lib/ModuleTransport';
+import type ModuleTransport from '../../../../packager/src//lib/ModuleTransport';
 import type {Bundle, ModuleGroups, OutputOptions} from '../../types.flow';
 
 const SIZEOF_UINT32 = 4;
diff --git a/local-cli/bundle/output/unbundle/index.js b/local-cli/bundle/output/unbundle/index.js
index aaa9c2de6..e830311de 100644
--- a/local-cli/bundle/output/unbundle/index.js
+++ b/local-cli/bundle/output/unbundle/index.js
@@ -13,8 +13,8 @@
 const asAssets = require('./as-assets');
 const asIndexedFile = require('./as-indexed-file');
 
-import type Bundle from '../../../../packager/react-packager/src/Bundler/Bundle';
-import type Server from '../../../../packager/react-packager/src/Server';
+import type Bundle from '../../../../packager/src//Bundler/Bundle';
+import type Server from '../../../../packager/src//Server';
 import type {OutputOptions, RequestOptions} from '../../types.flow';
 
 function buildBundle(packagerClient: Server, requestOptions: RequestOptions) {
diff --git a/local-cli/bundle/types.flow.js b/local-cli/bundle/types.flow.js
index 33b07d4f4..1933a7e71 100644
--- a/local-cli/bundle/types.flow.js
+++ b/local-cli/bundle/types.flow.js
@@ -10,10 +10,10 @@
  */
 'use strict';
 
-import type Bundle from '../../packager/react-packager/src/Bundler/Bundle';
-import type {Unbundle} from '../../packager/react-packager/src/Bundler/Bundle';
-import type ModuleTransport from '../../packager/react-packager/src/lib/ModuleTransport';
-import type {MixedSourceMap} from '../../packager/react-packager/src/lib/SourceMap';
+import type Bundle from '../../packager/src/Bundler/Bundle';
+import type {Unbundle} from '../../packager/src/Bundler/Bundle';
+import type ModuleTransport from '../../packager/src/lib/ModuleTransport';
+import type {MixedSourceMap} from '../../packager/src/lib/SourceMap';
 
 export type {Bundle, ModuleTransport, MixedSourceMap as SourceMap, Unbundle};
 
diff --git a/local-cli/core/index.js b/local-cli/core/index.js
index 3fa5e4b9c..899985334 100644
--- a/local-cli/core/index.js
+++ b/local-cli/core/index.js
@@ -15,7 +15,7 @@ const Config = require('../util/Config');
 const defaultConfig = require('./default.config');
 const minimist = require('minimist');
 
-import type {GetTransformOptions} from '../../packager/react-packager/src/Bundler';
+import type {GetTransformOptions} from '../../packager/src/Bundler';
 import type {CommandT} from '../commands';
 
 /**
diff --git a/local-cli/server/runServer.js b/local-cli/server/runServer.js
index 21deddabe..33126329f 100644
--- a/local-cli/server/runServer.js
+++ b/local-cli/server/runServer.js
@@ -10,7 +10,7 @@
 
 const InspectorProxy = require('./util/inspectorProxy.js');
 const ReactPackager = require('../../packager/react-packager');
-const TerminalReporter = require('../../packager/react-packager/src/lib/TerminalReporter');
+const TerminalReporter = require('../../packager/src/lib/TerminalReporter');
 
 const attachHMRServer = require('./util/attachHMRServer');
 const connect = require('connect');
diff --git a/local-cli/server/util/attachHMRServer.js b/local-cli/server/util/attachHMRServer.js
index 229d91e31..02373c43d 100644
--- a/local-cli/server/util/attachHMRServer.js
+++ b/local-cli/server/util/attachHMRServer.js
@@ -11,7 +11,7 @@
 const querystring = require('querystring');
 const url = require('url');
 
-const {getInverseDependencies} = require('../../../packager/react-packager/src/node-haste');
+const {getInverseDependencies} = require('../../../packager/src//node-haste');
 
 const blacklist = [
   'Libraries/Utilities/HMRClient.js',
diff --git a/packager/defaults.js b/packager/defaults.js
index 5a7ef3646..dedb41fdb 100644
--- a/packager/defaults.js
+++ b/packager/defaults.js
@@ -17,20 +17,20 @@ exports.assetExts =  [
   'html', 'pdf', // Document formats
 ];
 
-exports.moduleSystem = require.resolve('./react-packager/src/Resolver/polyfills/require.js');
+exports.moduleSystem = require.resolve('./src/Resolver/polyfills/require.js');
 
 exports.platforms = ['ios', 'android', 'windows', 'web'];
 
 exports.polyfills = [
-  require.resolve('./react-packager/src/Resolver/polyfills/polyfills.js'),
-  require.resolve('./react-packager/src/Resolver/polyfills/console.js'),
-  require.resolve('./react-packager/src/Resolver/polyfills/error-guard.js'),
-  require.resolve('./react-packager/src/Resolver/polyfills/Number.es6.js'),
-  require.resolve('./react-packager/src/Resolver/polyfills/String.prototype.es6.js'),
-  require.resolve('./react-packager/src/Resolver/polyfills/Array.prototype.es6.js'),
-  require.resolve('./react-packager/src/Resolver/polyfills/Array.es6.js'),
-  require.resolve('./react-packager/src/Resolver/polyfills/Object.es7.js'),
-  require.resolve('./react-packager/src/Resolver/polyfills/babelHelpers.js'),
+  require.resolve('./src/Resolver/polyfills/polyfills.js'),
+  require.resolve('./src/Resolver/polyfills/console.js'),
+  require.resolve('./src/Resolver/polyfills/error-guard.js'),
+  require.resolve('./src/Resolver/polyfills/Number.es6.js'),
+  require.resolve('./src/Resolver/polyfills/String.prototype.es6.js'),
+  require.resolve('./src/Resolver/polyfills/Array.prototype.es6.js'),
+  require.resolve('./src/Resolver/polyfills/Array.es6.js'),
+  require.resolve('./src/Resolver/polyfills/Object.es7.js'),
+  require.resolve('./src/Resolver/polyfills/babelHelpers.js'),
 ];
 
 exports.providesModuleNodeModules = [
diff --git a/packager/react-packager/index.js b/packager/index.js
similarity index 92%
rename from packager/react-packager/index.js
rename to packager/index.js
index 3406f681b..ec4826e00 100644
--- a/packager/react-packager/index.js
+++ b/packager/index.js
@@ -11,5 +11,5 @@
 
 'use strict';
 
-require('../../setupBabel')();
+require('../setupBabel')();
 module.exports = require('./react-packager');
diff --git a/packager/react-packager/react-packager.js b/packager/react-packager.js
similarity index 100%
rename from packager/react-packager/react-packager.js
rename to packager/react-packager.js
diff --git a/packager/react-packager/.npmignore b/packager/react-packager/.npmignore
deleted file mode 100644
index 2113f1066..000000000
--- a/packager/react-packager/.npmignore
+++ /dev/null
@@ -1,8 +0,0 @@
-*~
-*.swm
-*.swn
-*.swp
-*.DS_STORE
-npm-debug.log
-.cache
-node_modules
diff --git a/packager/react-packager/rn-babelrc.json b/packager/rn-babelrc.json
similarity index 100%
rename from packager/react-packager/rn-babelrc.json
rename to packager/rn-babelrc.json
diff --git a/packager/react-packager/src/AssetServer/__tests__/AssetServer-test.js b/packager/src/AssetServer/__tests__/AssetServer-test.js
similarity index 100%
rename from packager/react-packager/src/AssetServer/__tests__/AssetServer-test.js
rename to packager/src/AssetServer/__tests__/AssetServer-test.js
diff --git a/packager/react-packager/src/AssetServer/index.js b/packager/src/AssetServer/index.js
similarity index 100%
rename from packager/react-packager/src/AssetServer/index.js
rename to packager/src/AssetServer/index.js
diff --git a/packager/react-packager/src/Bundler/Bundle.js b/packager/src/Bundler/Bundle.js
similarity index 100%
rename from packager/react-packager/src/Bundler/Bundle.js
rename to packager/src/Bundler/Bundle.js
diff --git a/packager/react-packager/src/Bundler/BundleBase.js b/packager/src/Bundler/BundleBase.js
similarity index 100%
rename from packager/react-packager/src/Bundler/BundleBase.js
rename to packager/src/Bundler/BundleBase.js
diff --git a/packager/react-packager/src/Bundler/HMRBundle.js b/packager/src/Bundler/HMRBundle.js
similarity index 100%
rename from packager/react-packager/src/Bundler/HMRBundle.js
rename to packager/src/Bundler/HMRBundle.js
diff --git a/packager/react-packager/src/Bundler/__tests__/Bundle-test.js b/packager/src/Bundler/__tests__/Bundle-test.js
similarity index 100%
rename from packager/react-packager/src/Bundler/__tests__/Bundle-test.js
rename to packager/src/Bundler/__tests__/Bundle-test.js
diff --git a/packager/react-packager/src/Bundler/__tests__/Bundler-test.js b/packager/src/Bundler/__tests__/Bundler-test.js
similarity index 99%
rename from packager/react-packager/src/Bundler/__tests__/Bundler-test.js
rename to packager/src/Bundler/__tests__/Bundler-test.js
index 5b735de9a..a1158c8b3 100644
--- a/packager/react-packager/src/Bundler/__tests__/Bundler-test.js
+++ b/packager/src/Bundler/__tests__/Bundler-test.js
@@ -28,7 +28,7 @@ jest
 
 var Bundler = require('../');
 var Resolver = require('../../Resolver');
-var defaults = require('../../../../defaults');
+var defaults = require('../../../defaults');
 var sizeOf = require('image-size');
 var fs = require('fs');
 
diff --git a/packager/react-packager/src/Bundler/index.js b/packager/src/Bundler/index.js
similarity index 99%
rename from packager/react-packager/src/Bundler/index.js
rename to packager/src/Bundler/index.js
index 8f4832be2..dc7016565 100644
--- a/packager/react-packager/src/Bundler/index.js
+++ b/packager/src/Bundler/index.js
@@ -143,8 +143,9 @@ class Bundler {
       cacheKey: transformCacheKey,
     });
 
-    /* $FlowFixMe: in practice it's always here. */
-    this._transformer = new Transformer(opts.transformModulePath);
+    this._transformer = new Transformer({
+      transformModulePath: opts.transformModulePath,
+    });
 
     this._resolver = new Resolver({
       assetExts: opts.assetExts,
diff --git a/packager/react-packager/src/Bundler/source-map/B64Builder.js b/packager/src/Bundler/source-map/B64Builder.js
similarity index 100%
rename from packager/react-packager/src/Bundler/source-map/B64Builder.js
rename to packager/src/Bundler/source-map/B64Builder.js
diff --git a/packager/react-packager/src/Bundler/source-map/Generator.js b/packager/src/Bundler/source-map/Generator.js
similarity index 100%
rename from packager/react-packager/src/Bundler/source-map/Generator.js
rename to packager/src/Bundler/source-map/Generator.js
diff --git a/packager/react-packager/src/Bundler/source-map/__tests__/B64Builder-test.js b/packager/src/Bundler/source-map/__tests__/B64Builder-test.js
similarity index 100%
rename from packager/react-packager/src/Bundler/source-map/__tests__/B64Builder-test.js
rename to packager/src/Bundler/source-map/__tests__/B64Builder-test.js
diff --git a/packager/react-packager/src/Bundler/source-map/__tests__/Generator-test.js b/packager/src/Bundler/source-map/__tests__/Generator-test.js
similarity index 100%
rename from packager/react-packager/src/Bundler/source-map/__tests__/Generator-test.js
rename to packager/src/Bundler/source-map/__tests__/Generator-test.js
diff --git a/packager/react-packager/src/Bundler/source-map/__tests__/source-map-test.js b/packager/src/Bundler/source-map/__tests__/source-map-test.js
similarity index 100%
rename from packager/react-packager/src/Bundler/source-map/__tests__/source-map-test.js
rename to packager/src/Bundler/source-map/__tests__/source-map-test.js
diff --git a/packager/react-packager/src/Bundler/source-map/encode.js b/packager/src/Bundler/source-map/encode.js
similarity index 100%
rename from packager/react-packager/src/Bundler/source-map/encode.js
rename to packager/src/Bundler/source-map/encode.js
diff --git a/packager/react-packager/src/Bundler/source-map/package.json b/packager/src/Bundler/source-map/package.json
similarity index 100%
rename from packager/react-packager/src/Bundler/source-map/package.json
rename to packager/src/Bundler/source-map/package.json
diff --git a/packager/react-packager/src/Bundler/source-map/source-map.js b/packager/src/Bundler/source-map/source-map.js
similarity index 100%
rename from packager/react-packager/src/Bundler/source-map/source-map.js
rename to packager/src/Bundler/source-map/source-map.js
diff --git a/packager/react-packager/src/Cache/__mocks__/Cache.js b/packager/src/Cache/__mocks__/Cache.js
similarity index 100%
rename from packager/react-packager/src/Cache/__mocks__/Cache.js
rename to packager/src/Cache/__mocks__/Cache.js
diff --git a/packager/react-packager/src/JSTransformer/README.md b/packager/src/JSTransformer/README.md
similarity index 100%
rename from packager/react-packager/src/JSTransformer/README.md
rename to packager/src/JSTransformer/README.md
diff --git a/packager/react-packager/src/JSTransformer/__mocks__/lodash.js b/packager/src/JSTransformer/__mocks__/lodash.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/__mocks__/lodash.js
rename to packager/src/JSTransformer/__mocks__/lodash.js
diff --git a/packager/react-packager/src/JSTransformer/__mocks__/q.js b/packager/src/JSTransformer/__mocks__/q.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/__mocks__/q.js
rename to packager/src/JSTransformer/__mocks__/q.js
diff --git a/packager/react-packager/src/JSTransformer/__mocks__/worker.js b/packager/src/JSTransformer/__mocks__/worker.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/__mocks__/worker.js
rename to packager/src/JSTransformer/__mocks__/worker.js
diff --git a/packager/react-packager/src/JSTransformer/__tests__/Transformer-test.js b/packager/src/JSTransformer/__tests__/Transformer-test.js
similarity index 88%
rename from packager/react-packager/src/JSTransformer/__tests__/Transformer-test.js
rename to packager/src/JSTransformer/__tests__/Transformer-test.js
index 077b530fc..0df1a5f0f 100644
--- a/packager/react-packager/src/JSTransformer/__tests__/Transformer-test.js
+++ b/packager/src/JSTransformer/__tests__/Transformer-test.js
@@ -25,7 +25,7 @@ var Transformer = require('../');
 const {any} = jasmine;
 
 describe('Transformer', function() {
-  let workers, Cache;
+  let options, workers, Cache;
   const fileName = '/an/arbitrary/file.js';
   const transformModulePath = __filename;
 
@@ -34,6 +34,7 @@ describe('Transformer', function() {
     Cache.prototype.get = jest.fn((a, b, c) => c());
 
     fs.writeFileSync.mockClear();
+    options = {transformModulePath};
     workerFarm.mockClear();
     workerFarm.mockImplementation((opts, path, methods) => {
       const api = workers = {};
@@ -42,11 +43,11 @@ describe('Transformer', function() {
     });
   });
 
-  it('passes transform module path, file path, source code' +
-    ' to the worker farm when transforming', () => {
+  it('passes transform module path, file path, source code,' +
+    ' and options to the worker farm when transforming', () => {
     const transformOptions = {arbitrary: 'options'};
     const code = 'arbitrary(code)';
-    new Transformer(transformModulePath).transformFile(fileName, code, transformOptions);
+    new Transformer(options).transformFile(fileName, code, transformOptions);
     expect(workers.transformAndExtractDependencies).toBeCalledWith(
       transformModulePath,
       fileName,
@@ -57,7 +58,7 @@ describe('Transformer', function() {
   });
 
   it('should add file info to parse errors', function() {
-    const transformer = new Transformer(transformModulePath);
+    const transformer = new Transformer(options);
     var message = 'message';
     var snippet = 'snippet';
 
diff --git a/packager/react-packager/src/JSTransformer/index.js b/packager/src/JSTransformer/index.js
similarity index 71%
rename from packager/react-packager/src/JSTransformer/index.js
rename to packager/src/JSTransformer/index.js
index cab5bf7c9..9ebcf0531 100644
--- a/packager/react-packager/src/JSTransformer/index.js
+++ b/packager/src/JSTransformer/index.js
@@ -13,13 +13,12 @@
 
 const Logger = require('../Logger');
 
-const debug = require('debug')('RNP:JStransformer');
+const declareOpts = require('../lib/declareOpts');
 const denodeify = require('denodeify');
-const invariant = require('fbjs/lib/invariant');
 const os = require('os');
-const path = require('path');
 const util = require('util');
 const workerFarm = require('worker-farm');
+const debug = require('debug')('RNP:JStransformer');
 
 import type {Data as TransformData, Options as TransformOptions} from './worker/worker';
 import type {SourceMap} from '../lib/SourceMap';
@@ -30,11 +29,36 @@ import type {SourceMap} from '../lib/SourceMap';
 const MAX_CALLS_PER_WORKER = 600;
 
 // Worker will timeout if one of the callers timeout.
-const TRANSFORM_TIMEOUT_INTERVAL = 301000;
+const DEFAULT_MAX_CALL_TIME = 301000;
 
 // How may times can we tolerate failures from the worker.
 const MAX_RETRIES = 2;
 
+const validateOpts = declareOpts({
+  transformModulePath: {
+    type:'string',
+    required: false,
+  },
+  transformTimeoutInterval: {
+    type: 'number',
+    default: DEFAULT_MAX_CALL_TIME,
+  },
+  worker: {
+    type: 'string',
+  },
+  methods: {
+    type: 'array',
+    default: [],
+  },
+});
+
+type Options = {
+  transformModulePath?: ?string,
+  transformTimeoutInterval?: ?number,
+  worker?: ?string,
+  methods?: ?Array<string>,
+};
+
 const maxConcurrentWorkers = ((cores, override) => {
   if (override) {
     return Math.min(cores, override);
@@ -69,8 +93,14 @@ function makeFarm(worker, methods, timeout) {
 
 class Transformer {
 
+  _opts: {
+    transformModulePath?: ?string,
+    transformTimeoutInterval: number,
+    worker: ?string,
+    methods: Array<string>,
+  };
   _workers: {[name: string]: mixed};
-  _transformModulePath: string;
+  _transformModulePath: ?string;
   _transform: (
     transform: string,
     filename: string,
@@ -83,17 +113,31 @@ class Transformer {
     sourceMap: SourceMap,
   ) => Promise<{code: string, map: SourceMap}>;
 
-  constructor(transformModulePath: string) {
-    invariant(path.isAbsolute(transformModulePath), 'transform module path should be absolute');
-    this._transformModulePath = transformModulePath;
+  constructor(options: Options) {
+    const opts = this._opts = validateOpts(options);
 
-    this._workers = makeFarm(
-      require.resolve('./worker'),
-      ['minify', 'transformAndExtractDependencies'],
-      TRANSFORM_TIMEOUT_INTERVAL,
-    );
-    this._transform = denodeify(this._workers.transformAndExtractDependencies);
-    this.minify = denodeify(this._workers.minify);
+    const {transformModulePath} = opts;
+
+    if (opts.worker) {
+      this._workers =
+        makeFarm(opts.worker, opts.methods, opts.transformTimeoutInterval);
+      opts.methods.forEach(name => {
+        /* $FlowFixMe: assigning the class object fields directly is
+         * questionable, because it's prone to conflicts. */
+        this[name] = this._workers[name];
+      });
+    }
+    else if (transformModulePath) {
+      this._transformModulePath = require.resolve(transformModulePath);
+
+      this._workers = makeFarm(
+        require.resolve('./worker'),
+        ['minify', 'transformAndExtractDependencies'],
+        opts.transformTimeoutInterval,
+      );
+      this._transform = denodeify(this._workers.transformAndExtractDependencies);
+      this.minify = denodeify(this._workers.minify);
+    }
   }
 
   kill() {
@@ -106,6 +150,7 @@ class Transformer {
     }
     debug('transforming file', fileName);
     return this
+      /* $FlowFixMe: _transformModulePath may be empty, see constructor */
       ._transform(this._transformModulePath, fileName, code, options)
       .then(data => {
         Logger.log(data.transformFileStartLogEntry);
@@ -117,7 +162,7 @@ class Transformer {
         if (error.type === 'TimeoutError') {
           const timeoutErr = new Error(
             `TimeoutError: transforming ${fileName} took longer than ` +
-            `${TRANSFORM_TIMEOUT_INTERVAL / 1000} seconds.\n` +
+            `${this._opts.transformTimeoutInterval / 1000} seconds.\n` +
             'You can adjust timeout via the \'transformTimeoutInterval\' option'
           );
           /* $FlowFixMe: monkey-patch Error */
@@ -126,7 +171,8 @@ class Transformer {
         } else if (error.type === 'ProcessTerminatedError') {
           const uncaughtError = new Error(
             'Uncaught error in the transformer worker: ' +
-            this._transformModulePath
+            /* $FlowFixMe: _transformModulePath may be empty, see constructor */
+            this._opts.transformModulePath
           );
           /* $FlowFixMe: monkey-patch Error */
           uncaughtError.type = 'ProcessTerminatedError';
diff --git a/packager/react-packager/src/JSTransformer/worker/__tests__/constant-folding-test.js b/packager/src/JSTransformer/worker/__tests__/constant-folding-test.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/__tests__/constant-folding-test.js
rename to packager/src/JSTransformer/worker/__tests__/constant-folding-test.js
diff --git a/packager/react-packager/src/JSTransformer/worker/__tests__/extract-dependencies-test.js b/packager/src/JSTransformer/worker/__tests__/extract-dependencies-test.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/__tests__/extract-dependencies-test.js
rename to packager/src/JSTransformer/worker/__tests__/extract-dependencies-test.js
diff --git a/packager/react-packager/src/JSTransformer/worker/__tests__/inline-test.js b/packager/src/JSTransformer/worker/__tests__/inline-test.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/__tests__/inline-test.js
rename to packager/src/JSTransformer/worker/__tests__/inline-test.js
diff --git a/packager/react-packager/src/JSTransformer/worker/__tests__/minify-test.js b/packager/src/JSTransformer/worker/__tests__/minify-test.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/__tests__/minify-test.js
rename to packager/src/JSTransformer/worker/__tests__/minify-test.js
diff --git a/packager/react-packager/src/JSTransformer/worker/__tests__/worker-test.js b/packager/src/JSTransformer/worker/__tests__/worker-test.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/__tests__/worker-test.js
rename to packager/src/JSTransformer/worker/__tests__/worker-test.js
diff --git a/packager/react-packager/src/JSTransformer/worker/constant-folding.js b/packager/src/JSTransformer/worker/constant-folding.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/constant-folding.js
rename to packager/src/JSTransformer/worker/constant-folding.js
diff --git a/packager/react-packager/src/JSTransformer/worker/extract-dependencies.js b/packager/src/JSTransformer/worker/extract-dependencies.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/extract-dependencies.js
rename to packager/src/JSTransformer/worker/extract-dependencies.js
diff --git a/packager/react-packager/src/JSTransformer/worker/index.js b/packager/src/JSTransformer/worker/index.js
similarity index 90%
rename from packager/react-packager/src/JSTransformer/worker/index.js
rename to packager/src/JSTransformer/worker/index.js
index c1a634ef1..b54976380 100644
--- a/packager/react-packager/src/JSTransformer/worker/index.js
+++ b/packager/src/JSTransformer/worker/index.js
@@ -9,5 +9,5 @@
 
 'use strict';
 
-require('../../../../../setupBabel')();
+require('../../../../setupBabel')();
 module.exports = require('./worker');
diff --git a/packager/react-packager/src/JSTransformer/worker/inline.js b/packager/src/JSTransformer/worker/inline.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/inline.js
rename to packager/src/JSTransformer/worker/inline.js
diff --git a/packager/react-packager/src/JSTransformer/worker/minify.js b/packager/src/JSTransformer/worker/minify.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/minify.js
rename to packager/src/JSTransformer/worker/minify.js
diff --git a/packager/react-packager/src/JSTransformer/worker/worker.js b/packager/src/JSTransformer/worker/worker.js
similarity index 100%
rename from packager/react-packager/src/JSTransformer/worker/worker.js
rename to packager/src/JSTransformer/worker/worker.js
diff --git a/packager/react-packager/src/Logger/Types.js b/packager/src/Logger/Types.js
similarity index 100%
rename from packager/react-packager/src/Logger/Types.js
rename to packager/src/Logger/Types.js
diff --git a/packager/react-packager/src/Logger/__mocks__/chalk.js b/packager/src/Logger/__mocks__/chalk.js
similarity index 100%
rename from packager/react-packager/src/Logger/__mocks__/chalk.js
rename to packager/src/Logger/__mocks__/chalk.js
diff --git a/packager/react-packager/src/Logger/__tests__/Logger-test.js b/packager/src/Logger/__tests__/Logger-test.js
similarity index 100%
rename from packager/react-packager/src/Logger/__tests__/Logger-test.js
rename to packager/src/Logger/__tests__/Logger-test.js
diff --git a/packager/react-packager/src/Logger/index.js b/packager/src/Logger/index.js
similarity index 100%
rename from packager/react-packager/src/Logger/index.js
rename to packager/src/Logger/index.js
diff --git a/packager/react-packager/src/ModuleGraph/Graph.js b/packager/src/ModuleGraph/Graph.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/Graph.js
rename to packager/src/ModuleGraph/Graph.js
diff --git a/packager/react-packager/src/ModuleGraph/ModuleGraph.js b/packager/src/ModuleGraph/ModuleGraph.js
similarity index 98%
rename from packager/react-packager/src/ModuleGraph/ModuleGraph.js
rename to packager/src/ModuleGraph/ModuleGraph.js
index 7c98b772d..b26eca8e9 100644
--- a/packager/react-packager/src/ModuleGraph/ModuleGraph.js
+++ b/packager/src/ModuleGraph/ModuleGraph.js
@@ -10,7 +10,7 @@
  */
 'use strict';
 
-const defaults = require('../../../defaults');
+const defaults = require('../../defaults');
 const nullthrows = require('fbjs/lib/nullthrows');
 const parallel = require('async/parallel');
 const seq = require('async/seq');
diff --git a/packager/react-packager/src/ModuleGraph/__tests__/Graph-test.js b/packager/src/ModuleGraph/__tests__/Graph-test.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/__tests__/Graph-test.js
rename to packager/src/ModuleGraph/__tests__/Graph-test.js
diff --git a/packager/react-packager/src/ModuleGraph/__tests__/ModuleGraph-test.js b/packager/src/ModuleGraph/__tests__/ModuleGraph-test.js
similarity index 98%
rename from packager/react-packager/src/ModuleGraph/__tests__/ModuleGraph-test.js
rename to packager/src/ModuleGraph/__tests__/ModuleGraph-test.js
index 9b0f8e854..d183feebc 100644
--- a/packager/react-packager/src/ModuleGraph/__tests__/ModuleGraph-test.js
+++ b/packager/src/ModuleGraph/__tests__/ModuleGraph-test.js
@@ -11,7 +11,7 @@
 jest.disableAutomock();
 
 const ModuleGraph = require('../ModuleGraph');
-const defaults = require('../../../../defaults');
+const defaults = require('../../../defaults');
 
 const FILE_TYPE = 'module';
 
diff --git a/packager/react-packager/src/ModuleGraph/node-haste/HasteFS.js b/packager/src/ModuleGraph/node-haste/HasteFS.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/node-haste/HasteFS.js
rename to packager/src/ModuleGraph/node-haste/HasteFS.js
diff --git a/packager/react-packager/src/ModuleGraph/node-haste/Module.js b/packager/src/ModuleGraph/node-haste/Module.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/node-haste/Module.js
rename to packager/src/ModuleGraph/node-haste/Module.js
diff --git a/packager/react-packager/src/ModuleGraph/node-haste/ModuleCache.js b/packager/src/ModuleGraph/node-haste/ModuleCache.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/node-haste/ModuleCache.js
rename to packager/src/ModuleGraph/node-haste/ModuleCache.js
diff --git a/packager/react-packager/src/ModuleGraph/node-haste/Package.js b/packager/src/ModuleGraph/node-haste/Package.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/node-haste/Package.js
rename to packager/src/ModuleGraph/node-haste/Package.js
diff --git a/packager/react-packager/src/ModuleGraph/node-haste/node-haste.flow.js b/packager/src/ModuleGraph/node-haste/node-haste.flow.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/node-haste/node-haste.flow.js
rename to packager/src/ModuleGraph/node-haste/node-haste.flow.js
diff --git a/packager/react-packager/src/ModuleGraph/node-haste/node-haste.js b/packager/src/ModuleGraph/node-haste/node-haste.js
similarity index 98%
rename from packager/react-packager/src/ModuleGraph/node-haste/node-haste.js
rename to packager/src/ModuleGraph/node-haste/node-haste.js
index ce1b08fdc..fef59e3b4 100644
--- a/packager/react-packager/src/ModuleGraph/node-haste/node-haste.js
+++ b/packager/src/ModuleGraph/node-haste/node-haste.js
@@ -28,7 +28,7 @@ const Module = require('./Module');
 const ModuleCache = require('./ModuleCache');
 const ResolutionRequest = require('../../node-haste/DependencyGraph/ResolutionRequest');
 
-const defaults = require('../../../../defaults');
+const defaults = require('../../../defaults');
 
 type ResolveOptions = {|
   assetExts: Extensions,
diff --git a/packager/react-packager/src/ModuleGraph/node-haste/package.json b/packager/src/ModuleGraph/node-haste/package.json
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/node-haste/package.json
rename to packager/src/ModuleGraph/node-haste/package.json
diff --git a/packager/react-packager/src/ModuleGraph/output/__tests__/util-test.js b/packager/src/ModuleGraph/output/__tests__/util-test.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/output/__tests__/util-test.js
rename to packager/src/ModuleGraph/output/__tests__/util-test.js
diff --git a/packager/react-packager/src/ModuleGraph/output/as-plain-bundle.js b/packager/src/ModuleGraph/output/as-plain-bundle.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/output/as-plain-bundle.js
rename to packager/src/ModuleGraph/output/as-plain-bundle.js
diff --git a/packager/react-packager/src/ModuleGraph/output/source-map.js b/packager/src/ModuleGraph/output/source-map.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/output/source-map.js
rename to packager/src/ModuleGraph/output/source-map.js
diff --git a/packager/react-packager/src/ModuleGraph/output/util.js b/packager/src/ModuleGraph/output/util.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/output/util.js
rename to packager/src/ModuleGraph/output/util.js
diff --git a/packager/react-packager/src/ModuleGraph/package.json b/packager/src/ModuleGraph/package.json
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/package.json
rename to packager/src/ModuleGraph/package.json
diff --git a/packager/react-packager/src/ModuleGraph/silent-console.js b/packager/src/ModuleGraph/silent-console.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/silent-console.js
rename to packager/src/ModuleGraph/silent-console.js
diff --git a/packager/react-packager/src/ModuleGraph/test-helpers.js b/packager/src/ModuleGraph/test-helpers.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/test-helpers.js
rename to packager/src/ModuleGraph/test-helpers.js
diff --git a/packager/react-packager/src/ModuleGraph/types.flow.js b/packager/src/ModuleGraph/types.flow.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/types.flow.js
rename to packager/src/ModuleGraph/types.flow.js
diff --git a/packager/react-packager/src/ModuleGraph/worker.js b/packager/src/ModuleGraph/worker.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/worker.js
rename to packager/src/ModuleGraph/worker.js
diff --git a/packager/react-packager/src/ModuleGraph/worker/__tests__/collect-dependencies-test.js b/packager/src/ModuleGraph/worker/__tests__/collect-dependencies-test.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/worker/__tests__/collect-dependencies-test.js
rename to packager/src/ModuleGraph/worker/__tests__/collect-dependencies-test.js
diff --git a/packager/react-packager/src/ModuleGraph/worker/__tests__/optimize-module-test.js b/packager/src/ModuleGraph/worker/__tests__/optimize-module-test.js
similarity index 98%
rename from packager/react-packager/src/ModuleGraph/worker/__tests__/optimize-module-test.js
rename to packager/src/ModuleGraph/worker/__tests__/optimize-module-test.js
index 8494b0147..c9c3cc6bb 100644
--- a/packager/react-packager/src/ModuleGraph/worker/__tests__/optimize-module-test.js
+++ b/packager/src/ModuleGraph/worker/__tests__/optimize-module-test.js
@@ -12,7 +12,7 @@ jest.disableAutomock();
 
 const optimizeModule = require('../optimize-module');
 const transformModule = require('../transform-module');
-const transform = require('../../../../../transformer.js');
+const transform = require('../../../../transformer.js');
 const {SourceMapConsumer} = require('source-map');
 
 const {objectContaining} = jasmine;
diff --git a/packager/react-packager/src/ModuleGraph/worker/__tests__/transform-module-test.js b/packager/src/ModuleGraph/worker/__tests__/transform-module-test.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/worker/__tests__/transform-module-test.js
rename to packager/src/ModuleGraph/worker/__tests__/transform-module-test.js
diff --git a/packager/react-packager/src/ModuleGraph/worker/__tests__/wrap-worker-fn-test.js b/packager/src/ModuleGraph/worker/__tests__/wrap-worker-fn-test.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/worker/__tests__/wrap-worker-fn-test.js
rename to packager/src/ModuleGraph/worker/__tests__/wrap-worker-fn-test.js
diff --git a/packager/react-packager/src/ModuleGraph/worker/collect-dependencies.js b/packager/src/ModuleGraph/worker/collect-dependencies.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/worker/collect-dependencies.js
rename to packager/src/ModuleGraph/worker/collect-dependencies.js
diff --git a/packager/react-packager/src/ModuleGraph/worker/generate.js b/packager/src/ModuleGraph/worker/generate.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/worker/generate.js
rename to packager/src/ModuleGraph/worker/generate.js
diff --git a/packager/react-packager/src/ModuleGraph/worker/optimize-module.js b/packager/src/ModuleGraph/worker/optimize-module.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/worker/optimize-module.js
rename to packager/src/ModuleGraph/worker/optimize-module.js
diff --git a/packager/react-packager/src/ModuleGraph/worker/transform-module.js b/packager/src/ModuleGraph/worker/transform-module.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/worker/transform-module.js
rename to packager/src/ModuleGraph/worker/transform-module.js
diff --git a/packager/react-packager/src/ModuleGraph/worker/wrap-worker-fn.js b/packager/src/ModuleGraph/worker/wrap-worker-fn.js
similarity index 100%
rename from packager/react-packager/src/ModuleGraph/worker/wrap-worker-fn.js
rename to packager/src/ModuleGraph/worker/wrap-worker-fn.js
diff --git a/packager/react-packager/src/Resolver/__tests__/Resolver-test.js b/packager/src/Resolver/__tests__/Resolver-test.js
similarity index 99%
rename from packager/react-packager/src/Resolver/__tests__/Resolver-test.js
rename to packager/src/Resolver/__tests__/Resolver-test.js
index 684ef403c..1579ca686 100644
--- a/packager/react-packager/src/Resolver/__tests__/Resolver-test.js
+++ b/packager/src/Resolver/__tests__/Resolver-test.js
@@ -9,7 +9,7 @@
 'use strict';
 
 jest.unmock('../');
-jest.unmock('../../../../defaults');
+jest.unmock('../../../defaults');
 jest.mock('path');
 
 const {join: pathJoin} = require.requireActual('path');
diff --git a/packager/react-packager/src/Resolver/index.js b/packager/src/Resolver/index.js
similarity index 99%
rename from packager/react-packager/src/Resolver/index.js
rename to packager/src/Resolver/index.js
index e5f5a839d..2c63d473c 100644
--- a/packager/react-packager/src/Resolver/index.js
+++ b/packager/src/Resolver/index.js
@@ -13,7 +13,7 @@
 
 const DependencyGraph = require('../node-haste');
 
-const defaults = require('../../../defaults');
+const defaults = require('../../defaults');
 const pathJoin = require('path').join;
 
 import type ResolutionResponse from '../node-haste/DependencyGraph/ResolutionResponse';
diff --git a/packager/react-packager/src/Resolver/polyfills/Array.es6.js b/packager/src/Resolver/polyfills/Array.es6.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/Array.es6.js
rename to packager/src/Resolver/polyfills/Array.es6.js
diff --git a/packager/react-packager/src/Resolver/polyfills/Array.prototype.es6.js b/packager/src/Resolver/polyfills/Array.prototype.es6.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/Array.prototype.es6.js
rename to packager/src/Resolver/polyfills/Array.prototype.es6.js
diff --git a/packager/react-packager/src/Resolver/polyfills/Number.es6.js b/packager/src/Resolver/polyfills/Number.es6.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/Number.es6.js
rename to packager/src/Resolver/polyfills/Number.es6.js
diff --git a/packager/react-packager/src/Resolver/polyfills/Object.es7.js b/packager/src/Resolver/polyfills/Object.es7.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/Object.es7.js
rename to packager/src/Resolver/polyfills/Object.es7.js
diff --git a/packager/react-packager/src/Resolver/polyfills/String.prototype.es6.js b/packager/src/Resolver/polyfills/String.prototype.es6.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/String.prototype.es6.js
rename to packager/src/Resolver/polyfills/String.prototype.es6.js
diff --git a/packager/react-packager/src/Resolver/polyfills/__tests__/Object.es7-test.js b/packager/src/Resolver/polyfills/__tests__/Object.es7-test.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/__tests__/Object.es7-test.js
rename to packager/src/Resolver/polyfills/__tests__/Object.es7-test.js
diff --git a/packager/react-packager/src/Resolver/polyfills/babelHelpers.js b/packager/src/Resolver/polyfills/babelHelpers.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/babelHelpers.js
rename to packager/src/Resolver/polyfills/babelHelpers.js
diff --git a/packager/react-packager/src/Resolver/polyfills/console.js b/packager/src/Resolver/polyfills/console.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/console.js
rename to packager/src/Resolver/polyfills/console.js
diff --git a/packager/react-packager/src/Resolver/polyfills/error-guard.js b/packager/src/Resolver/polyfills/error-guard.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/error-guard.js
rename to packager/src/Resolver/polyfills/error-guard.js
diff --git a/packager/react-packager/src/Resolver/polyfills/polyfills.js b/packager/src/Resolver/polyfills/polyfills.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/polyfills.js
rename to packager/src/Resolver/polyfills/polyfills.js
diff --git a/packager/react-packager/src/Resolver/polyfills/prelude.js b/packager/src/Resolver/polyfills/prelude.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/prelude.js
rename to packager/src/Resolver/polyfills/prelude.js
diff --git a/packager/react-packager/src/Resolver/polyfills/prelude_dev.js b/packager/src/Resolver/polyfills/prelude_dev.js
similarity index 100%
rename from packager/react-packager/src/Resolver/polyfills/prelude_dev.js
rename to packager/src/Resolver/polyfills/prelude_dev.js
diff --git a/packager/react-packager/src/Resolver/polyfills/require.js b/packager/src/Resolver/polyfills/require.js
similarity index 98%
rename from packager/react-packager/src/Resolver/polyfills/require.js
rename to packager/src/Resolver/polyfills/require.js
index 27f81a923..acdc4a98e 100644
--- a/packager/react-packager/src/Resolver/polyfills/require.js
+++ b/packager/src/Resolver/polyfills/require.js
@@ -166,8 +166,8 @@ function loadModuleImplementation(moduleId, module) {
     }
 
     // keep args in sync with with defineModuleCode in
-    // packager/react-packager/src/Resolver/index.js
-    // and packager/react-packager/src/ModuleGraph/worker.js
+    // packager/src//Resolver/index.js
+    // and packager/src//ModuleGraph/worker.js
     factory(global, require, moduleObject, exports, dependencyMap);
 
     // avoid removing factory in DEV mode as it breaks HMR
diff --git a/packager/react-packager/src/Server/MultipartResponse.js b/packager/src/Server/MultipartResponse.js
similarity index 100%
rename from packager/react-packager/src/Server/MultipartResponse.js
rename to packager/src/Server/MultipartResponse.js
diff --git a/packager/react-packager/src/Server/__tests__/MultipartResponse-test.js b/packager/src/Server/__tests__/MultipartResponse-test.js
similarity index 100%
rename from packager/react-packager/src/Server/__tests__/MultipartResponse-test.js
rename to packager/src/Server/__tests__/MultipartResponse-test.js
diff --git a/packager/react-packager/src/Server/__tests__/Server-test.js b/packager/src/Server/__tests__/Server-test.js
similarity index 100%
rename from packager/react-packager/src/Server/__tests__/Server-test.js
rename to packager/src/Server/__tests__/Server-test.js
diff --git a/packager/react-packager/src/Server/index.js b/packager/src/Server/index.js
similarity index 99%
rename from packager/react-packager/src/Server/index.js
rename to packager/src/Server/index.js
index 811b0357a..f36734371 100644
--- a/packager/react-packager/src/Server/index.js
+++ b/packager/src/Server/index.js
@@ -18,7 +18,7 @@ const MultipartResponse = require('./MultipartResponse');
 const SourceMapConsumer = require('source-map').SourceMapConsumer;
 
 const declareOpts = require('../lib/declareOpts');
-const defaults = require('../../../defaults');
+const defaults = require('../../defaults');
 const mime = require('mime-types');
 const path = require('path');
 const terminal = require('../lib/terminal');
diff --git a/packager/react-packager/src/__mocks__/debug.js b/packager/src/__mocks__/debug.js
similarity index 100%
rename from packager/react-packager/src/__mocks__/debug.js
rename to packager/src/__mocks__/debug.js
diff --git a/packager/react-packager/src/lib/BatchProcessor.js b/packager/src/lib/BatchProcessor.js
similarity index 100%
rename from packager/react-packager/src/lib/BatchProcessor.js
rename to packager/src/lib/BatchProcessor.js
diff --git a/packager/react-packager/src/lib/GlobalTransformCache.js b/packager/src/lib/GlobalTransformCache.js
similarity index 100%
rename from packager/react-packager/src/lib/GlobalTransformCache.js
rename to packager/src/lib/GlobalTransformCache.js
diff --git a/packager/react-packager/src/lib/JsonReporter.js b/packager/src/lib/JsonReporter.js
similarity index 100%
rename from packager/react-packager/src/lib/JsonReporter.js
rename to packager/src/lib/JsonReporter.js
diff --git a/packager/react-packager/src/lib/ModuleTransport.js b/packager/src/lib/ModuleTransport.js
similarity index 100%
rename from packager/react-packager/src/lib/ModuleTransport.js
rename to packager/src/lib/ModuleTransport.js
diff --git a/packager/react-packager/src/lib/SourceMap.js b/packager/src/lib/SourceMap.js
similarity index 100%
rename from packager/react-packager/src/lib/SourceMap.js
rename to packager/src/lib/SourceMap.js
diff --git a/packager/react-packager/src/lib/TerminalReporter.js b/packager/src/lib/TerminalReporter.js
similarity index 100%
rename from packager/react-packager/src/lib/TerminalReporter.js
rename to packager/src/lib/TerminalReporter.js
diff --git a/packager/react-packager/src/lib/TransformCache.js b/packager/src/lib/TransformCache.js
similarity index 100%
rename from packager/react-packager/src/lib/TransformCache.js
rename to packager/src/lib/TransformCache.js
diff --git a/packager/react-packager/src/lib/__mocks__/BatchProcessor.js b/packager/src/lib/__mocks__/BatchProcessor.js
similarity index 100%
rename from packager/react-packager/src/lib/__mocks__/BatchProcessor.js
rename to packager/src/lib/__mocks__/BatchProcessor.js
diff --git a/packager/react-packager/src/lib/__mocks__/GlobalTransformCache.js b/packager/src/lib/__mocks__/GlobalTransformCache.js
similarity index 100%
rename from packager/react-packager/src/lib/__mocks__/GlobalTransformCache.js
rename to packager/src/lib/__mocks__/GlobalTransformCache.js
diff --git a/packager/react-packager/src/lib/__mocks__/TransformCache.js b/packager/src/lib/__mocks__/TransformCache.js
similarity index 100%
rename from packager/react-packager/src/lib/__mocks__/TransformCache.js
rename to packager/src/lib/__mocks__/TransformCache.js
diff --git a/packager/react-packager/src/lib/__mocks__/declareOpts.js b/packager/src/lib/__mocks__/declareOpts.js
similarity index 100%
rename from packager/react-packager/src/lib/__mocks__/declareOpts.js
rename to packager/src/lib/__mocks__/declareOpts.js
diff --git a/packager/react-packager/src/lib/__tests__/BatchProcessor-test.js b/packager/src/lib/__tests__/BatchProcessor-test.js
similarity index 100%
rename from packager/react-packager/src/lib/__tests__/BatchProcessor-test.js
rename to packager/src/lib/__tests__/BatchProcessor-test.js
diff --git a/packager/react-packager/src/lib/__tests__/TransformCache-test.js b/packager/src/lib/__tests__/TransformCache-test.js
similarity index 100%
rename from packager/react-packager/src/lib/__tests__/TransformCache-test.js
rename to packager/src/lib/__tests__/TransformCache-test.js
diff --git a/packager/react-packager/src/lib/__tests__/declareOpts-test.js b/packager/src/lib/__tests__/declareOpts-test.js
similarity index 100%
rename from packager/react-packager/src/lib/__tests__/declareOpts-test.js
rename to packager/src/lib/__tests__/declareOpts-test.js
diff --git a/packager/react-packager/src/lib/__tests__/terminal-test.js b/packager/src/lib/__tests__/terminal-test.js
similarity index 100%
rename from packager/react-packager/src/lib/__tests__/terminal-test.js
rename to packager/src/lib/__tests__/terminal-test.js
diff --git a/packager/react-packager/src/lib/declareOpts.js b/packager/src/lib/declareOpts.js
similarity index 100%
rename from packager/react-packager/src/lib/declareOpts.js
rename to packager/src/lib/declareOpts.js
diff --git a/packager/react-packager/src/lib/relativizeSourceMap.js b/packager/src/lib/relativizeSourceMap.js
similarity index 100%
rename from packager/react-packager/src/lib/relativizeSourceMap.js
rename to packager/src/lib/relativizeSourceMap.js
diff --git a/packager/react-packager/src/lib/reporting.js b/packager/src/lib/reporting.js
similarity index 100%
rename from packager/react-packager/src/lib/reporting.js
rename to packager/src/lib/reporting.js
diff --git a/packager/react-packager/src/lib/terminal.js b/packager/src/lib/terminal.js
similarity index 100%
rename from packager/react-packager/src/lib/terminal.js
rename to packager/src/lib/terminal.js
diff --git a/packager/react-packager/src/lib/toFixedHex.js b/packager/src/lib/toFixedHex.js
similarity index 100%
rename from packager/react-packager/src/lib/toFixedHex.js
rename to packager/src/lib/toFixedHex.js
diff --git a/packager/react-packager/src/node-haste/AssetModule.js b/packager/src/node-haste/AssetModule.js
similarity index 100%
rename from packager/react-packager/src/node-haste/AssetModule.js
rename to packager/src/node-haste/AssetModule.js
diff --git a/packager/react-packager/src/node-haste/Cache/__mocks__/index.js b/packager/src/node-haste/Cache/__mocks__/index.js
similarity index 100%
rename from packager/react-packager/src/node-haste/Cache/__mocks__/index.js
rename to packager/src/node-haste/Cache/__mocks__/index.js
diff --git a/packager/react-packager/src/node-haste/Cache/__tests__/Cache-test.js b/packager/src/node-haste/Cache/__tests__/Cache-test.js
similarity index 100%
rename from packager/react-packager/src/node-haste/Cache/__tests__/Cache-test.js
rename to packager/src/node-haste/Cache/__tests__/Cache-test.js
diff --git a/packager/react-packager/src/node-haste/Cache/index.js b/packager/src/node-haste/Cache/index.js
similarity index 100%
rename from packager/react-packager/src/node-haste/Cache/index.js
rename to packager/src/node-haste/Cache/index.js
diff --git a/packager/react-packager/src/node-haste/DependencyGraph/DependencyGraphHelpers.js b/packager/src/node-haste/DependencyGraph/DependencyGraphHelpers.js
similarity index 100%
rename from packager/react-packager/src/node-haste/DependencyGraph/DependencyGraphHelpers.js
rename to packager/src/node-haste/DependencyGraph/DependencyGraphHelpers.js
diff --git a/packager/react-packager/src/node-haste/DependencyGraph/HasteMap.js b/packager/src/node-haste/DependencyGraph/HasteMap.js
similarity index 100%
rename from packager/react-packager/src/node-haste/DependencyGraph/HasteMap.js
rename to packager/src/node-haste/DependencyGraph/HasteMap.js
diff --git a/packager/react-packager/src/node-haste/DependencyGraph/ResolutionRequest.js b/packager/src/node-haste/DependencyGraph/ResolutionRequest.js
similarity index 100%
rename from packager/react-packager/src/node-haste/DependencyGraph/ResolutionRequest.js
rename to packager/src/node-haste/DependencyGraph/ResolutionRequest.js
diff --git a/packager/react-packager/src/node-haste/DependencyGraph/ResolutionResponse.js b/packager/src/node-haste/DependencyGraph/ResolutionResponse.js
similarity index 100%
rename from packager/react-packager/src/node-haste/DependencyGraph/ResolutionResponse.js
rename to packager/src/node-haste/DependencyGraph/ResolutionResponse.js
diff --git a/packager/react-packager/src/node-haste/DependencyGraph/assets/empty-module.js b/packager/src/node-haste/DependencyGraph/assets/empty-module.js
similarity index 100%
rename from packager/react-packager/src/node-haste/DependencyGraph/assets/empty-module.js
rename to packager/src/node-haste/DependencyGraph/assets/empty-module.js
diff --git a/packager/react-packager/src/node-haste/DependencyGraph/docblock.js b/packager/src/node-haste/DependencyGraph/docblock.js
similarity index 100%
rename from packager/react-packager/src/node-haste/DependencyGraph/docblock.js
rename to packager/src/node-haste/DependencyGraph/docblock.js
diff --git a/packager/react-packager/src/node-haste/Module.js b/packager/src/node-haste/Module.js
similarity index 100%
rename from packager/react-packager/src/node-haste/Module.js
rename to packager/src/node-haste/Module.js
diff --git a/packager/react-packager/src/node-haste/ModuleCache.js b/packager/src/node-haste/ModuleCache.js
similarity index 100%
rename from packager/react-packager/src/node-haste/ModuleCache.js
rename to packager/src/node-haste/ModuleCache.js
diff --git a/packager/react-packager/src/node-haste/Package.js b/packager/src/node-haste/Package.js
similarity index 100%
rename from packager/react-packager/src/node-haste/Package.js
rename to packager/src/node-haste/Package.js
diff --git a/packager/react-packager/src/node-haste/Polyfill.js b/packager/src/node-haste/Polyfill.js
similarity index 100%
rename from packager/react-packager/src/node-haste/Polyfill.js
rename to packager/src/node-haste/Polyfill.js
diff --git a/packager/react-packager/src/node-haste/__mocks__/fs.js b/packager/src/node-haste/__mocks__/fs.js
similarity index 100%
rename from packager/react-packager/src/node-haste/__mocks__/fs.js
rename to packager/src/node-haste/__mocks__/fs.js
diff --git a/packager/react-packager/src/node-haste/__mocks__/graceful-fs.js b/packager/src/node-haste/__mocks__/graceful-fs.js
similarity index 100%
rename from packager/react-packager/src/node-haste/__mocks__/graceful-fs.js
rename to packager/src/node-haste/__mocks__/graceful-fs.js
diff --git a/packager/react-packager/src/node-haste/__tests__/AssetModule-test.js b/packager/src/node-haste/__tests__/AssetModule-test.js
similarity index 100%
rename from packager/react-packager/src/node-haste/__tests__/AssetModule-test.js
rename to packager/src/node-haste/__tests__/AssetModule-test.js
diff --git a/packager/react-packager/src/node-haste/__tests__/DependencyGraph-test.js b/packager/src/node-haste/__tests__/DependencyGraph-test.js
similarity index 100%
rename from packager/react-packager/src/node-haste/__tests__/DependencyGraph-test.js
rename to packager/src/node-haste/__tests__/DependencyGraph-test.js
diff --git a/packager/react-packager/src/node-haste/__tests__/Module-test.js b/packager/src/node-haste/__tests__/Module-test.js
similarity index 100%
rename from packager/react-packager/src/node-haste/__tests__/Module-test.js
rename to packager/src/node-haste/__tests__/Module-test.js
diff --git a/packager/react-packager/src/node-haste/index.js b/packager/src/node-haste/index.js
similarity index 100%
rename from packager/react-packager/src/node-haste/index.js
rename to packager/src/node-haste/index.js
diff --git a/packager/react-packager/src/node-haste/lib/AsyncTaskGroup.js b/packager/src/node-haste/lib/AsyncTaskGroup.js
similarity index 100%
rename from packager/react-packager/src/node-haste/lib/AsyncTaskGroup.js
rename to packager/src/node-haste/lib/AsyncTaskGroup.js
diff --git a/packager/react-packager/src/node-haste/lib/MapWithDefaults.js b/packager/src/node-haste/lib/MapWithDefaults.js
similarity index 100%
rename from packager/react-packager/src/node-haste/lib/MapWithDefaults.js
rename to packager/src/node-haste/lib/MapWithDefaults.js
diff --git a/packager/react-packager/src/node-haste/lib/__tests__/getAssetDataFromName-test.js b/packager/src/node-haste/lib/__tests__/getAssetDataFromName-test.js
similarity index 100%
rename from packager/react-packager/src/node-haste/lib/__tests__/getAssetDataFromName-test.js
rename to packager/src/node-haste/lib/__tests__/getAssetDataFromName-test.js
diff --git a/packager/react-packager/src/node-haste/lib/__tests__/getInverseDependencies-test.js b/packager/src/node-haste/lib/__tests__/getInverseDependencies-test.js
similarity index 100%
rename from packager/react-packager/src/node-haste/lib/__tests__/getInverseDependencies-test.js
rename to packager/src/node-haste/lib/__tests__/getInverseDependencies-test.js
diff --git a/packager/react-packager/src/node-haste/lib/__tests__/getPlatformExtension-test.js b/packager/src/node-haste/lib/__tests__/getPlatformExtension-test.js
similarity index 100%
rename from packager/react-packager/src/node-haste/lib/__tests__/getPlatformExtension-test.js
rename to packager/src/node-haste/lib/__tests__/getPlatformExtension-test.js
diff --git a/packager/react-packager/src/node-haste/lib/getAssetDataFromName.js b/packager/src/node-haste/lib/getAssetDataFromName.js
similarity index 100%
rename from packager/react-packager/src/node-haste/lib/getAssetDataFromName.js
rename to packager/src/node-haste/lib/getAssetDataFromName.js
diff --git a/packager/react-packager/src/node-haste/lib/getInverseDependencies.js b/packager/src/node-haste/lib/getInverseDependencies.js
similarity index 100%
rename from packager/react-packager/src/node-haste/lib/getInverseDependencies.js
rename to packager/src/node-haste/lib/getInverseDependencies.js
diff --git a/packager/react-packager/src/node-haste/lib/getPlatformExtension.js b/packager/src/node-haste/lib/getPlatformExtension.js
similarity index 100%
rename from packager/react-packager/src/node-haste/lib/getPlatformExtension.js
rename to packager/src/node-haste/lib/getPlatformExtension.js
diff --git a/packager/react-packager/src/node-haste/lib/replacePatterns.js b/packager/src/node-haste/lib/replacePatterns.js
similarity index 100%
rename from packager/react-packager/src/node-haste/lib/replacePatterns.js
rename to packager/src/node-haste/lib/replacePatterns.js
diff --git a/packager/react-packager/src/node-haste/types.js b/packager/src/node-haste/types.js
similarity index 100%
rename from packager/react-packager/src/node-haste/types.js
rename to packager/src/node-haste/types.js
diff --git a/packager/transformer.js b/packager/transformer.js
index 7ce94a0a8..5b45d15c4 100644
--- a/packager/transformer.js
+++ b/packager/transformer.js
@@ -20,7 +20,7 @@ const makeHMRConfig = require('babel-preset-react-native/configs/hmr');
 const path = require('path');
 const resolvePlugins = require('babel-preset-react-native/lib/resolvePlugins');
 
-const {compactMapping} = require('./react-packager/src/Bundler/source-map');
+const {compactMapping} = require('./src/Bundler/source-map');
 
 /**
  * Return a memoized function that checks for the existence of a
@@ -50,7 +50,7 @@ const getBabelRC = (function() {
     if (!projectBabelRCPath || !fs.existsSync(projectBabelRCPath)) {
       babelRC = json5.parse(
         fs.readFileSync(
-          path.resolve(__dirname, 'react-packager', 'rn-babelrc.json'))
+          path.resolve(__dirname, 'rn-babelrc.json'))
         );
 
       // Require the babel-preset's listed in the default babel config
diff --git a/setupBabel.js b/setupBabel.js
index 657321664..1bf22b027 100644
--- a/setupBabel.js
+++ b/setupBabel.js
@@ -14,8 +14,8 @@ const escapeRegExp = require('lodash/escapeRegExp');
 const path = require('path');
 
 const BABEL_ENABLED_PATHS = [
-  'packager/react-packager/react-packager.js',
-  'packager/react-packager/src',
+  'packager/react-packager.js',
+  'packager/src',
   'packager/transformer.js',
   'local-cli',
 ];