diff --git a/Makefile b/Makefile
index 70f7feb..4a29353 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 PWD := $(shell pwd)
-DART_FILES := $(shell find dart/bin dart/lib dart/test sky_demo/lib -name "*.dart" -not -path "dart/lib/gen/*")
+DART_FILES := $(shell find dart/bin dart/lib dart/test -name "*.dart" -not -path "dart/lib/gen/*")
 V23_GO_FILES := $(shell find $(JIRI_ROOT) -name "*.go")
 
 include ../shared/mojo.mk
@@ -14,7 +14,6 @@
 endif
 
 ifdef ANDROID
-	SKY_BUILD_DIR := $(SKY_DIR)/src/out/android_Debug
 	ETHER_BUILD_DIR := $(PWD)/gen/mojo/android
 
 	THIRD_PARTY_LIBS := $(JIRI_ROOT)/third_party/cout/android_arm
@@ -28,7 +27,6 @@
 	APP_HOME_DIR = /data/data/org.chromium.mojo.shell/app_home
 	V23_MOJO_FLAGS += --logtostderr=true --root-dir=$(APP_HOME_DIR)/syncbase_data
 else
-	SKY_BUILD_DIR := $(SKY_DIR)/src/out/Debug
 	ETHER_BUILD_DIR := $(PWD)/gen/mojo/linux_amd64
 
 	THIRD_PARTY_LIBS := $(JIRI_ROOT)/third_party/cout/linux_amd64
@@ -96,35 +94,21 @@
 
 # Lints src and test files with dartanalyzer. This takes a few seconds.
 .PHONY: dartanalyzer
-dartanalyzer: dart/packages sky_demo/packages gen-mojom
+dartanalyzer: dart/packages gen-mojom
 	# TODO(nlacasse): Fix dart mojom binding generator so it does not produce
 	# files that violate dartanalyzer.  For now, we use "grep -v" to hide all
 	# hints and warnings from *.mojom.dart files.
 	cd dart && dartanalyzer bin/*.dart lib/*.dart test/**/*.dart | grep -v "\.mojom\.dart, line"
-	cd sky_demo && dartanalyzer lib/*.dart | grep -v "\.mojom\.dart, line"
 
 # Installs dart dependencies.
 .PHONY: dart/packages
 dart/packages:
 	cd dart && pub upgrade
 
-# Installs dart dependencies.
-.PHONY: sky_demo/packages
-sky_demo/packages:
-	cd sky_demo && pub upgrade
-
 .PHONY: run-syncbase-example
 run-syncbase-example: $(ETHER_BUILD_DIR)/syncbase_server.mojo dart/packages dart/lib/gen/dart-gen/mojom/lib/mojo/syncbase.mojom.dart | syncbase-env-check
 	$(call MOJO_RUN,https://mojo.v.io/syncbase_example.dart)
 
-.PHONY: run-sky-demo
-run-sky-demo: MOJO_SHELL_FLAGS += --config-alias SKY_DIR=$(SKY_DIR) --config-alias SKY_BUILD_DIR=$(SKY_BUILD_DIR)
-run-sky-demo: sky_demo/packages $(ETHER_BUILD_DIR)/syncbase_server.mojo dart/lib/gen/dart-gen/mojom/lib/mojo/syncbase.mojom.dart | syncbase-env-check
-ifndef SKY_DIR
-	$(error SKY_DIR is not set)
-endif
-	$(MOJO_DIR)/src/mojo/devtools/common/mojo_run --config-file $(PWD)/sky_demo/mojoconfig $(MOJO_SHELL_FLAGS) $(MOJO_ANDROID_FLAGS) 'mojo:window_manager https://mojo.v.io/sky_demo/lib/main.dart'
-
 .PHONY: test
 test: test-unit test-integration
 
@@ -157,4 +141,4 @@
 
 .PHONY: veryclean
 veryclean: clean
-	rm -rf {dart,sky_demo}/{.packages,pubspec.lock,packages}
+	rm -rf dart/{.packages,pubspec.lock,packages}
diff --git a/README.md b/README.md
index 4f3bc9c..07f78c5 100644
--- a/README.md
+++ b/README.md
@@ -63,15 +63,6 @@
         $ ./mojo/tools/mojob.py gn --android
         $ ./mojo/tools/mojob.py build --android # NOTE: This can take up to 10 minutes.
 
-## Sky setup
-
-You must have the Sky code in `$SKY_DIR`. Follow the instructions in the Sky
-[CONTRIBUTING.md][sky contrib] file for "Getting the code" and "Building the
-code".
-
-Also, you must patch your Mojo code (and rebuild Mojo):
-https://github.com/domokit/mojo/issues/370
-
 ## Install Dart SDK
 
 To run Dart apps, you must install the Dart SDK.
@@ -97,4 +88,3 @@
 [depot tools]: http://www.chromium.org/developers/how-tos/install-depot-tools
 [goma]: https://sites.google.com/a/google.com/goma/how-to-use-goma/how-to-use-goma-for-chrome-team
 [mojo readme]: https://github.com/domokit/mojo/blob/master/README.md
-[sky contrib]: https://github.com/domokit/sky_engine/blob/master/CONTRIBUTING.md
diff --git a/sky_demo/lib/main.dart b/sky_demo/lib/main.dart
deleted file mode 100644
index 5de8671..0000000
--- a/sky_demo/lib/main.dart
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright 2015 The Vanadium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-import 'dart:async';
-import 'dart:convert' show UTF8;
-
-import 'package:sky/src/services/embedder.dart' show embedder;
-import 'package:sky/widgets.dart';
-
-import 'package:ether/syncbase_client.dart'
-    show Perms, SyncbaseClient, SyncbaseTable;
-
-log(String msg) {
-  DateTime now = new DateTime.now();
-  print('$now $msg');
-}
-
-Perms emptyPerms() => new Perms()..json = '{}';
-
-class DemoApp extends App {
-  final SyncbaseClient _syncbaseClient;
-
-  DemoApp() : _syncbaseClient = new SyncbaseClient(
-          embedder.connectToService, 'https://mojo.v.io/syncbase_server.mojo');
-
-  int seq = 0;
-  SyncbaseTable tb;
-  String putStr, getStr;
-
-  Future doSyncbaseInit() async {
-    log('DemoApp.doSyncbaseInit');
-    if (tb != null) {
-      log('syncbase already initialized');
-      return;
-    }
-    var app = _syncbaseClient.app('app');
-    if (!(await app.exists())) {
-      await app.create(emptyPerms());
-    }
-    var db = app.noSqlDatabase('db');
-    if (!(await db.exists())) {
-      await db.create(emptyPerms());
-    }
-    var table = db.table('table');
-    if (!(await table.exists())) {
-      await table.create(emptyPerms());
-    }
-    tb = table;
-    log('syncbase is now initialized');
-  }
-
-  Future doPutGet() async {
-    log('DemoApp.doPutGet');
-    await doSyncbaseInit();
-
-    setState(() {
-      putStr = seq.toString();
-      getStr = '';
-    });
-    seq++;
-    log('setState putStr done');
-
-    // TODO(sadovsky): Switch to tb.put/get once they exist.
-    var row = tb.row('key');
-    await row.put(UTF8.encode(putStr));
-    var getBytes = await row.get();
-
-    setState(() {
-      getStr = UTF8.decode(getBytes);
-    });
-    log('setState getStr done');
-  }
-
-  // TODO(sadovsky): I don't think Sky calls App.close().
-  Future close({bool immediate: false}) async {
-    log('DemoApp.close');
-    await _syncbaseClient.close(immediate: immediate);
-  }
-
-  Widget build() {
-    return new Container(
-        decoration: const BoxDecoration(
-            backgroundColor: const Color(0xFF00ACC1)),
-        child: new Flex([
-      new RaisedButton(child: new Text('doPutGet'), onPressed: doPutGet),
-      new Text('putStr: $putStr'),
-      new Text('getStr: $getStr')
-    ], direction: FlexDirection.vertical));
-  }
-}
-
-void main() {
-  runApp(new DemoApp());
-}
diff --git a/sky_demo/mojoconfig b/sky_demo/mojoconfig
deleted file mode 100644
index d0ce1a9..0000000
--- a/sky_demo/mojoconfig
+++ /dev/null
@@ -1,34 +0,0 @@
-# Combination of ../mojoconfig and $MOJO_DIR/src/mojo/tools/configs/sky.
-
-{
-  'dev_servers': [
-    {
-      'host': 'https://mojo.v.io/',
-      'mappings': [
-        ('packages/', [
-          # For sky_demo packages.
-          '@{ETHER_DIR}/sky_demo/packages',
-        ]),
-        ('', [
-          # For syncbase_server.mojo.
-          '@{ETHER_BUILD_DIR}',
-          # For sky_demo/lib/main.dart.
-          '@{ETHER_DIR}',
-        ]),
-      ],
-    },
-    {
-      'host': 'https://sky/',
-      'mappings': [
-        ('', [
-          # For sky_viewer.mojo.
-          '@{SKY_BUILD_DIR}'
-        ]),
-      ],
-    }
-  ],
-
-  'content_handlers': {
-    'application/dart': 'https://sky/sky_viewer.mojo',
-  }
-}
diff --git a/sky_demo/pubspec.yaml b/sky_demo/pubspec.yaml
deleted file mode 100644
index ca5894e..0000000
--- a/sky_demo/pubspec.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-name: sky_demo
-dependencies:
-  sky: any
-  sky_tools: any
-  ether: any
-dependency_overrides:
-  ether:
-    path: ../dart
diff --git a/tools/sync_repos.sh b/tools/sync_repos.sh
index 010486e..f4244db 100755
--- a/tools/sync_repos.sh
+++ b/tools/sync_repos.sh
@@ -22,18 +22,3 @@
   ./mojo/tools/mojob.py gn --android
   ./mojo/tools/mojob.py build --android
 fi
-
-####################
-# Sky
-
-cd $SKY_DIR/src
-git pull
-gclient sync
-if [[ "${DESKTOP}" = "1" ]]; then
-  ./sky/tools/gn
-  ninja -C out/Debug
-fi
-if [[ "${ANDROID}" = "1" ]]; then
-  ./sky/tools/gn --android
-  ninja -C out/android_Debug
-fi