diff --git a/.analysis_options b/.analysis_options
new file mode 100644
index 0000000..427c5c3
--- /dev/null
+++ b/.analysis_options
@@ -0,0 +1,3 @@
+analyzer:
+  exclude:
+    - deps/*
diff --git a/.gitignore b/.gitignore
index 1f8d8c1..887d277 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,9 @@
-/.jiri
\ No newline at end of file
+/.jiri
+deps
+.atom/
+.idea
+.packages
+.pub/
+build/
+ios/.generated/
+packages
diff --git a/FLUTTER_VERSION b/FLUTTER_VERSION
new file mode 100644
index 0000000..61c3673
--- /dev/null
+++ b/FLUTTER_VERSION
@@ -0,0 +1 @@
+199f24ad3ddde9ff6291ec0b6b42972c677fcc7d
diff --git a/Makefile b/Makefile
index 2d387e0..3dffd14 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,48 @@
+MAKEFLAGS += --warn-undefined-variables
+SHELL := /bin/bash
 
-.PHONY:
+.SHELLFLAGS := -eu -o pipefail -c
+.DEFAULT_GOAL := all
+.SUFFIXES:
+
+DIRNAME := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
+FLUTTER_BIN := $(DIRNAME)/deps/flutter/bin
+DART_BIN := $(FLUTTER_BIN)/cache/dart-sdk/bin
+PATH := $(FLUTTER_BIN):$(DART_BIN):$(PATH)
+
+.PHONY: all
+all: deps/flutter
+	@true # silences watch, do not remove.
+
+deps/flutter:
+	git clone https://github.com/flutter/flutter.git -b alpha $@
+	cd $@ && git checkout $(shell echo -e `cat FLUTTER_VERSION`)
+	flutter doctor
+	@touch $@
+
+.PHONY: clean
 clean:
 	@true
 
-.PHONY:
-test:
-	@true
+.PHONY: depclean
+depclean:
+	@rm -rf deps/flutter
+
+.PHONY: packages
+packages: examples/todos/packages
+
+examples/todos/packages: examples/todos/pubspec.yaml deps/flutter
+	cd examples/todos && pub get
+	@touch $@
+
+.PHONY: analyze
+analyze: deps/flutter packages
+	cd examples/todos/ && flutter analyze
+
+.PHONY: test
+test: packages analyze deps/flutter
+	cd examples/todos/ && flutter test
+
+.PHONY: fmt
+fmt: packages deps/flutter
+	cd examples/todos/ && dartfmt --overwrite lib
diff --git a/examples/todos/.gitignore b/examples/todos/.gitignore
deleted file mode 100644
index 14c7d4c..0000000
--- a/examples/todos/.gitignore
+++ /dev/null
@@ -1,9 +0,0 @@
-.DS_Store
-.atom/
-.idea
-.packages
-.pub/
-build/
-ios/.generated/
-packages
-pubspec.lock
diff --git a/examples/todos/pubspec.lock b/examples/todos/pubspec.lock
new file mode 100644
index 0000000..fb60dbd
--- /dev/null
+++ b/examples/todos/pubspec.lock
@@ -0,0 +1,328 @@
+# Generated by pub
+# See http://pub.dartlang.org/doc/glossary.html#lockfile
+packages:
+  analyzer:
+    description:
+      name: analyzer
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.27.4-alpha.6"
+  args:
+    description:
+      name: args
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.4+2"
+  async:
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.11.0"
+  barback:
+    description:
+      name: barback
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.15.2+8"
+  boolean_selector:
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  charcode:
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  collection:
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  convert:
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
+  crypto:
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.2"
+  csslib:
+    description:
+      name: csslib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.2"
+  file:
+    description:
+      name: file
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.0"
+  flutter:
+    description:
+      path: "../../deps/flutter/packages/flutter"
+      relative: true
+    source: path
+    version: "0.0.21"
+  flutter_driver:
+    description:
+      path: "../../deps/flutter/packages/flutter_driver"
+      relative: true
+    source: path
+    version: "0.0.1"
+  flutter_test:
+    description:
+      path: "../../deps/flutter/packages/flutter_test"
+      relative: true
+    source: path
+    version: "0.0.0"
+  glob:
+    description:
+      name: glob
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.2"
+  html:
+    description:
+      name: html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.2+2"
+  http_multi_server:
+    description:
+      name: http_multi_server
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
+  http_parser:
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  intl:
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.7+1"
+  json_rpc_2:
+    description:
+      name: json_rpc_2
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
+  logging:
+    description:
+      name: logging
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.11.3"
+  matcher:
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.0+2"
+  meta:
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.1"
+  mime:
+    description:
+      name: mime
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.3"
+  mojo:
+    description:
+      name: mojo
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.20"
+  mojo_sdk:
+    description:
+      name: mojo_sdk
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.24"
+  mojo_services:
+    description:
+      name: mojo_services
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.4.27"
+  package_config:
+    description:
+      name: package_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
+  path:
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.9"
+  petitparser:
+    description:
+      name: petitparser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.5.3"
+  plugin:
+    description:
+      name: plugin
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.0"
+  pool:
+    description:
+      name: pool
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.4"
+  pub_semver:
+    description:
+      name: pub_semver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.4"
+  quiver:
+    description:
+      name: quiver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.21.4"
+  shelf:
+    description:
+      name: shelf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.6.5+2"
+  shelf_static:
+    description:
+      name: shelf_static
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.3+4"
+  shelf_web_socket:
+    description:
+      name: shelf_web_socket
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.1"
+  sky_engine:
+    description:
+      path: "../../deps/flutter/bin/cache/pkg/sky_engine"
+      relative: true
+    source: path
+    version: "0.0.99"
+  sky_services:
+    description:
+      path: "../../deps/flutter/bin/cache/pkg/sky_services"
+      relative: true
+    source: path
+    version: "0.0.99"
+  source_map_stack_trace:
+    description:
+      name: source_map_stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.4"
+  source_maps:
+    description:
+      name: source_maps
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.1+1"
+  source_span:
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.2"
+  stack_trace:
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.6.5"
+  stream_channel:
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.0"
+  string_scanner:
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.4+1"
+  test:
+    description:
+      name: test
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.13+1"
+  typed_data:
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.3"
+  utf:
+    description:
+      name: utf
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.0+3"
+  uuid:
+    description:
+      name: uuid
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.5.0"
+  vector_math:
+    description:
+      name: vector_math
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.4.7"
+  vm_service_client:
+    description:
+      name: vm_service_client
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.2+1"
+  watcher:
+    description:
+      name: watcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.9.7+2"
+  web_socket_channel:
+    description:
+      name: web_socket_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
+  yaml:
+    description:
+      name: yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.9"
+sdk: ">=1.16.0 <1.18.0"
diff --git a/examples/todos/pubspec.yaml b/examples/todos/pubspec.yaml
index 0fe0f08..566407c 100644
--- a/examples/todos/pubspec.yaml
+++ b/examples/todos/pubspec.yaml
@@ -3,10 +3,10 @@
 dependencies:
   uuid: 0.5.0
   flutter:
-    path:  ../../../../../../flutter/packages/flutter
+    path: ../../deps/flutter/packages/flutter
 dev_dependencies:
   test: any
   flutter_test:
-    path: ../../../../../../flutter/packages/flutter_test
+    path: ../../deps/flutter/packages/flutter_test
   flutter_driver:
-    path: ../../../../../../flutter/packages/flutter_driver
+    path: ../../deps/flutter/packages/flutter_driver
diff --git a/examples/todos/test/unit_test.dart b/examples/todos/test/unit_test.dart
new file mode 100644
index 0000000..6f938ea
--- /dev/null
+++ b/examples/todos/test/unit_test.dart
@@ -0,0 +1,11 @@
+// Copyright 2016 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 'package:test/test.dart';
+
+void main() {
+  test('this is a unit test', () {
+    expect(42, 42);
+  });
+}