diff --git a/dart.gyp b/dart.gyp
index b87b5688272..914b088d9ac 100644
--- a/dart.gyp
+++ b/dart.gyp
@@ -184,5 +184,13 @@
         'pkg/pkg.gyp:pkg_packages',
       ],
     },
+    {
+      'target_name': 'try',
+      'type': 'none',
+      'dependencies': [
+        'create_sdk',
+        'site/try/build_try.gyp:try_site',
+      ],
+    },
   ],
 }
diff --git a/sdk/lib/_internal/compiler/samples/jsonify/jsonify.dart b/sdk/lib/_internal/compiler/samples/jsonify/jsonify.dart
index 36596aaa2b9..e639c4e52e9 100644
--- a/sdk/lib/_internal/compiler/samples/jsonify/jsonify.dart
+++ b/sdk/lib/_internal/compiler/samples/jsonify/jsonify.dart
@@ -31,6 +31,8 @@ var handler;
 RandomAccessFile output;
 Uri outputUri;
 Uri sdkRoot;
+const bool outputJson =
+    const bool.fromEnvironment('outputJson', defaultValue: false);
 
 main(List<String> arguments) {
   handler = new FormattingDiagnosticHandler()
@@ -77,7 +79,10 @@ jsonify(MirrorSystem mirrors) {
     }
   });
 
-  output.writeStringSync('''
+  if (outputJson) {
+    output.writeStringSync(JSON.encode(map));
+  } else {
+    output.writeStringSync('''
 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
@@ -88,7 +93,8 @@ jsonify(MirrorSystem mirrors) {
 library dart.sdk_sources;
 
 const Map<String, String> SDK_SOURCES = const <String, String>''');
-  output.writeStringSync(JSON.encode(map).replaceAll(r'$', r'\$'));
-  output.writeStringSync(';\n');
+    output.writeStringSync(JSON.encode(map).replaceAll(r'$', r'\$'));
+    output.writeStringSync(';\n');
+  }
   output.closeSync();
 }
diff --git a/site/try/app.yaml b/site/try/app.yaml
index 4d6864d454b..24ae3106ff7 100644
--- a/site/try/app.yaml
+++ b/site/try/app.yaml
@@ -5,11 +5,26 @@
 # App Engine configuration, see:
 # https://developers.google.com/appengine/docs/python/config/appconfig
 
+# The version number should be something like rSVN_REVISION.
+version: remember to edit app.yaml before deploying
+# This version name is used to create a new host, for example,
+# http://r31824.try-dart-lang.appspot.com/, which can be tested before going
+# live at http://try.dartlang.org/.  This is controlled from
+# https://appengine.google.com/deployment?&app_id=s~try-dart-lang
+
 application: try-dart-lang
-version: 5-sdk1-0
 runtime: python27
 api_version: 1
 threadsafe: yes
+
+# Set "Cache-Control" and "Expires" HTTP headers to only cache for one second.
+# We do this because we frequently push new changes and rely on AppCache for
+# caching.  Once files are installed in AppCache, the site launches
+# immediately.
+#
+# Problem: PageSpeed Insights doesn't realize that we use AppCache and keeps
+# nagging about caching.
+# Solution: Ignore its advice about "Leverage browser caching".
 default_expiration: 1s
 
 handlers:
@@ -34,12 +49,15 @@ handlers:
   upload: (.*\.(html|js|png|css|dart|json))
   secure: never
 
-- url: /css/fonts/
-  static_dir: font
+- url: /css/fonts/fontawesome-webfont.woff
+  static_files: fontawesome-webfont.woff
+  upload: fontawesome-webfont.woff
   secure: never
 
-error_handlers:
-  - file: static/not_found.html
+- url: .*
+  static_files: not_found.html
+  upload: not_found.html
+  secure: never
 
 libraries:
 - name: webapp2
diff --git a/site/try/build_try.gyp b/site/try/build_try.gyp
new file mode 100644
index 00000000000..4a7eea07853
--- /dev/null
+++ b/site/try/build_try.gyp
@@ -0,0 +1,94 @@
+# Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE
+
+{
+  'targets': [
+    {
+      'target_name': 'try_site',
+      'type': 'none',
+      'dependencies': [
+        '../../runtime/dart-runtime.gyp:dart',
+        # Concern: there should really be a dependency on
+        # ../../dart.gyp:create_sdk, but this is reported as a cycle by GYP.
+      ],
+      'actions': [
+        {
+          'action_name': 'sdk_json',
+          'message': 'Creating sdk.json',
+          'inputs': [
+
+            # Depending on this file ensures that the SDK is built before this
+            # action is executed.
+            '<(PRODUCT_DIR)/dart-sdk/README',
+
+            # This dependency is redundant for now, as this directory is
+            # implicitly part of the dependencies for dart-sdk/README.
+            '<!@(["python", "../../tools/list_files.py", "\\.dart$", '
+                 '"../../sdk/lib/_internal/compiler/samples/jsonify"])',
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/sdk.json',
+          ],
+          'action': [
+
+            '<(PRODUCT_DIR)/dart-sdk/bin/'
+            '<(EXECUTABLE_PREFIX)dart<(EXECUTABLE_SUFFIX)',
+
+            '-Dlist_all_libraries=true',
+            '-DoutputJson=true',
+            '../../sdk/lib/_internal/compiler/samples/jsonify/jsonify.dart',
+            '<(SHARED_INTERMEDIATE_DIR)/sdk.json',
+          ],
+        },
+        {
+          'action_name': 'compile',
+          'message': 'Creating leap.dart.js',
+          'inputs': [
+            # Depending on this file ensures that the SDK is built before this
+            # action is executed.
+            '<(PRODUCT_DIR)/dart-sdk/README',
+
+            'leap.dart',
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/leap.dart.js',
+          ],
+          'action': [
+            '<(PRODUCT_DIR)/dart-sdk/bin/dart2js',
+            '-v',
+            '-Denable_ir=false',
+            'leap.dart',
+            '-o<(SHARED_INTERMEDIATE_DIR)/leap.dart.js',
+          ],
+        },
+      ],
+      'copies': [
+        {
+          # Destination directory.
+          'destination': '<(PRODUCT_DIR)/try_dartlang_org/',
+          # List of files to be copied (creates implicit build dependencies).
+          'files': [
+            'app.yaml',
+
+            'nossl.appcache',
+            'index.html',
+            'dartlang-style.css',
+            'iframe.html',
+            'iframe.js',
+            'dart-icon.png',
+            'dart-iphone5.png',
+
+            '../../third_party/font-awesome/font-awesome-4.0.3/'
+            'fonts/fontawesome-webfont.woff',
+
+            '../../sdk/lib/_internal/dartdoc/static/favicon.ico',
+
+            '<(SHARED_INTERMEDIATE_DIR)/leap.dart.js',
+            '<(SHARED_INTERMEDIATE_DIR)/sdk.json',
+          ],
+        },
+      ],
+    },
+  ],
+}
diff --git a/site/try/nossl.appcache b/site/try/nossl.appcache
index 0e5a6154f6a..1d6f1555659 100644
--- a/site/try/nossl.appcache
+++ b/site/try/nossl.appcache
@@ -3,7 +3,7 @@ CACHE MANIFEST
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-# Version 5-sdk1-0.3 <-- CHANGE THIS when you have a new version
+# Version 7 <-- CHANGE THIS when you have a new version
 
 CACHE:
 index.html
diff --git a/site/try/not_found.html b/site/try/not_found.html
new file mode 100644
index 00000000000..ecd6203d5e1
--- /dev/null
+++ b/site/try/not_found.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<!--
+Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+for details. All rights reserved. Use of this source code is governed by a
+BSD-style license that can be found in the LICENSE file.
+-->
+<html lang="en">
+  <head>
+    <title>Missing Resource</title>
+    <meta charset="UTF-8">
+  </head>
+  <body>
+    <h1>Missing Resource</h1>
+  </body>
+</html>