diff --git a/pkgs/messages/LICENSE b/pkgs/messages/LICENSE
new file mode 100644
index 00000000..4fd5739c
--- /dev/null
+++ b/pkgs/messages/LICENSE
@@ -0,0 +1,27 @@
+Copyright 2023, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/pkgs/messages/lib/src/message.dart b/pkgs/messages/lib/src/message.dart
index df26babb..22ab8667 100644
--- a/pkgs/messages/lib/src/message.dart
+++ b/pkgs/messages/lib/src/message.dart
@@ -46,7 +46,7 @@ final class StringMessage extends Message {
   /// Maps argument indices to their position in the string, where they are to
   /// be inserted.
   ///
-  /// This list is expected to be sorted by [stringIndex]
+  /// This list is expected to be sorted by `argPositions.stringIndex`
   final List<({int stringIndex, int argIndex})> argPositions;
 
   StringMessage(this.value, {this.argPositions = const [], String? id})
diff --git a/pkgs/messages/lib/src/message_list_json.dart b/pkgs/messages/lib/src/message_list_json.dart
index 7e93c920..dd67e391 100644
--- a/pkgs/messages/lib/src/message_list_json.dart
+++ b/pkgs/messages/lib/src/message_list_json.dart
@@ -2,7 +2,7 @@
 // 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.
 
-import 'package:messages_deserializer/messages_deserializer_json.dart';
+import 'package:messages_deserializer/messages_deserializer.dart';
 
 import 'intl_object.dart';
 import 'message_format.dart';
diff --git a/pkgs/messages/pubspec.yaml b/pkgs/messages/pubspec.yaml
index 36c3b20b..f286c847 100644
--- a/pkgs/messages/pubspec.yaml
+++ b/pkgs/messages/pubspec.yaml
@@ -1,7 +1,6 @@
 name: messages
 description: A lightweight modular library for localization (l10n) functionality.
 version: 0.1.0
-publish_to: none
 repository: https://github.com/dart-lang/i18n/tree/main/pkgs/messages
 
 environment:
@@ -13,6 +12,5 @@ dependencies:
   messages_deserializer: ^0.1.0
 
 dev_dependencies:
-  dart_flutter_team_lints: ^1.0.0
-  lints: ^2.0.0
+  dart_flutter_team_lints: ^2.1.1
   test: ^1.16.0
diff --git a/pkgs/messages_builder/LICENSE b/pkgs/messages_builder/LICENSE
new file mode 100644
index 00000000..4fd5739c
--- /dev/null
+++ b/pkgs/messages_builder/LICENSE
@@ -0,0 +1,27 @@
+Copyright 2023, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/pkgs/messages_builder/lib/builder.dart b/pkgs/messages_builder/lib/builder.dart
index 7b64d26e..f18435a3 100644
--- a/pkgs/messages_builder/lib/builder.dart
+++ b/pkgs/messages_builder/lib/builder.dart
@@ -175,7 +175,7 @@ class BuildStepGenerator {
   /// unpacked at runtime so that the messages can be read from it.
   ///
   /// Returns the list of indices of the messages which are visible to the user.
-  Future<void> writeDataFile<T>(MessagesWithMetadata messages) async {
+  Future<void> writeDataFile(MessagesWithMetadata messages) async {
     final serialization = serializer.serialize(
       messages.hash,
       messages.locale,
diff --git a/pkgs/messages_builder/pubspec.yaml b/pkgs/messages_builder/pubspec.yaml
index 9eb4bba7..a5bfc6d8 100644
--- a/pkgs/messages_builder/pubspec.yaml
+++ b/pkgs/messages_builder/pubspec.yaml
@@ -1,7 +1,6 @@
 name: messages_builder
 description: Build the messages for consumption by package:messages
 version: 0.1.0
-publish_to: none
 repository: https://github.com/dart-lang/i18n/pkgs/messages_builder
 
 environment:
@@ -23,7 +22,6 @@ dependencies:
 dev_dependencies:
   build_runner: ^2.0.0
   build_web_compilers: ^4.0.5
-  dart_flutter_team_lints: ^1.0.0
-  lints: ^2.0.0
+  dart_flutter_team_lints: ^2.1.1
   messages_deserializer: ^0.1.0
   test: ^1.16.0
diff --git a/pkgs/messages_builder/test/web_deserializer_native_test.dart b/pkgs/messages_builder/test/web_deserializer_native_test.dart
index c35357b7..3454153f 100644
--- a/pkgs/messages_builder/test/web_deserializer_native_test.dart
+++ b/pkgs/messages_builder/test/web_deserializer_native_test.dart
@@ -9,7 +9,7 @@ import 'package:messages/messages.dart';
 import 'package:messages/package_intl_object.dart';
 import 'package:messages_builder/arb_parser.dart';
 import 'package:messages_builder/message_with_metadata.dart';
-import 'package:messages_deserializer/messages_deserializer_json.dart';
+import 'package:messages_deserializer/messages_deserializer.dart';
 import 'package:messages_serializer/messages_serializer.dart';
 import 'package:test/test.dart';
 
diff --git a/pkgs/messages_deserializer/LICENSE b/pkgs/messages_deserializer/LICENSE
new file mode 100644
index 00000000..4fd5739c
--- /dev/null
+++ b/pkgs/messages_deserializer/LICENSE
@@ -0,0 +1,27 @@
+Copyright 2023, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/pkgs/messages_deserializer/lib/messages_deserializer_json.dart b/pkgs/messages_deserializer/lib/messages_deserializer.dart
similarity index 100%
rename from pkgs/messages_deserializer/lib/messages_deserializer_json.dart
rename to pkgs/messages_deserializer/lib/messages_deserializer.dart
diff --git a/pkgs/messages_deserializer/pubspec.yaml b/pkgs/messages_deserializer/pubspec.yaml
index 41d189cc..9493a8c7 100644
--- a/pkgs/messages_deserializer/pubspec.yaml
+++ b/pkgs/messages_deserializer/pubspec.yaml
@@ -1,7 +1,6 @@
 name: messages_deserializer
 description: Deserialization of messages for package:messages.
 version: 0.1.0
-publish_to: none
 repository: https://github.com/dart-lang/i18n/tree/main/pkgs/messages_deserializer
 
 environment:
@@ -14,5 +13,4 @@ dependencies:
 
 dev_dependencies:
   dart_flutter_team_lints: ^2.0.0
-  lints: ^2.0.0
   test: ^1.21.0
diff --git a/pkgs/messages_serializer/LICENSE b/pkgs/messages_serializer/LICENSE
new file mode 100644
index 00000000..4fd5739c
--- /dev/null
+++ b/pkgs/messages_serializer/LICENSE
@@ -0,0 +1,27 @@
+Copyright 2023, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/pkgs/messages_serializer/lib/src/serializer_json.dart b/pkgs/messages_serializer/lib/src/serializer_json.dart
index 8aca238d..2b468af5 100644
--- a/pkgs/messages_serializer/lib/src/serializer_json.dart
+++ b/pkgs/messages_serializer/lib/src/serializer_json.dart
@@ -85,7 +85,7 @@ class JsonSerializer extends Serializer<String> {
     if ((message.id == null || isVisible == false) && !containsArgs) {
       return message.value;
     }
-    final m = [];
+    final m = <Object>[];
     addId(message, m, isVisible);
     m.add(message.value);
     if (containsArgs) {
@@ -106,7 +106,7 @@ class JsonSerializer extends Serializer<String> {
   /// * Map\<String, int\> | the cases:
   ///   * MapEntry\<String, int\> | a case mapped to the message it represents
   List encodeSelect(SelectMessage message, bool isVisible) {
-    final m = [];
+    final m = <Object>[];
     m.add(SelectMessage.type);
     addId(message, m, isVisible);
     m.add(message.argIndex);
@@ -129,12 +129,12 @@ class JsonSerializer extends Serializer<String> {
   ///   * int | the case index as encoded by the constants in `Plural`
   ///   * int | the message index of the case
   List encodePlural(PluralMessage message, bool isVisible) {
-    final m = [];
+    final m = <Object>[];
     m.add(PluralMessage.type);
     addId(message, m, isVisible);
     m.add(message.argIndex);
     m.add(encodeMessage(message.other));
-    final caseIndices = [];
+    final caseIndices = <Object>[];
     if (message.few != null) {
       caseIndices.add(Plural.few);
       caseIndices.add(encodeMessage(message.few!));
@@ -178,7 +178,7 @@ class JsonSerializer extends Serializer<String> {
   /// * List\<int\> | the submessage IDs
   ///   * int | the index of the submessage
   List encodeCombined(CombinedMessage message, bool isVisible) {
-    final m = [];
+    final m = <Object>[];
     m.add(CombinedMessage.type);
     addId(message, m, isVisible);
     for (var submessage in message.messages) {
@@ -197,12 +197,12 @@ class JsonSerializer extends Serializer<String> {
   ///   * int | the case index as encoded by the constants in `Gender`
   ///   * int | the message index of the case
   List encodeGender(GenderMessage message, bool isVisible) {
-    final m = [];
+    final m = <Object>[];
     m.add(GenderMessage.type);
     addId(message, m, isVisible);
     m.add(message.argIndex);
     m.add(encodeMessage(message.other));
-    final caseIndices = [];
+    final caseIndices = <Object>[];
     if (message.female != null) {
       caseIndices.add(Gender.female);
       caseIndices.add(encodeMessage(message.female!));
diff --git a/pkgs/messages_serializer/pubspec.yaml b/pkgs/messages_serializer/pubspec.yaml
index a2927960..ebd83e23 100644
--- a/pkgs/messages_serializer/pubspec.yaml
+++ b/pkgs/messages_serializer/pubspec.yaml
@@ -1,7 +1,6 @@
 name: messages_serializer
 description: Serialization of messages for package:messages.
 version: 0.1.0
-publish_to: none
 repository: https://github.com/dart-lang/i18n/tree/main/pkgs/messages_serializer
 
 environment:
@@ -12,7 +11,6 @@ dependencies:
   messages: ^0.1.0
 
 dev_dependencies:
-  dart_flutter_team_lints: ^1.0.0
-  lints: ^2.0.0
+  dart_flutter_team_lints: ^2.1.1
   messages_deserializer: ^0.1.0
   test: ^1.21.0
diff --git a/pkgs/messages_serializer/test/messages_serializer_test.dart b/pkgs/messages_serializer/test/messages_serializer_test.dart
index 562d7546..ec9ba148 100644
--- a/pkgs/messages_serializer/test/messages_serializer_test.dart
+++ b/pkgs/messages_serializer/test/messages_serializer_test.dart
@@ -6,7 +6,7 @@ import 'dart:math';
 
 import 'package:messages/messages_json.dart';
 import 'package:messages/package_intl_object.dart';
-import 'package:messages_deserializer/messages_deserializer_json.dart';
+import 'package:messages_deserializer/messages_deserializer.dart';
 import 'package:messages_serializer/messages_serializer.dart';
 import 'package:test/test.dart';
 
diff --git a/pkgs/messages_shrinker/LICENSE b/pkgs/messages_shrinker/LICENSE
new file mode 100644
index 00000000..ac900319
--- /dev/null
+++ b/pkgs/messages_shrinker/LICENSE
@@ -0,0 +1,27 @@
+Copyright 2023, the Dart project authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google LLC nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/pkgs/messages_shrinker/lib/messages_shrinker.dart b/pkgs/messages_shrinker/lib/messages_shrinker.dart
index 5ae46b18..3c353c1a 100644
--- a/pkgs/messages_shrinker/lib/messages_shrinker.dart
+++ b/pkgs/messages_shrinker/lib/messages_shrinker.dart
@@ -6,7 +6,7 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:messages/package_intl_object.dart';
-import 'package:messages_deserializer/messages_deserializer_json.dart';
+import 'package:messages_deserializer/messages_deserializer.dart';
 import 'package:messages_serializer/messages_serializer.dart';
 
 class MessageShrinker {
diff --git a/pkgs/messages_shrinker/pubspec.yaml b/pkgs/messages_shrinker/pubspec.yaml
index 9c0edda0..d9542f03 100644
--- a/pkgs/messages_shrinker/pubspec.yaml
+++ b/pkgs/messages_shrinker/pubspec.yaml
@@ -1,7 +1,6 @@
 name: messages_shrinker
 description: A starting point for Dart libraries or applications.
 version: 0.1.0
-publish_to: none
 repository: https://github.com/dart-lang/i18n/pkgs/messages_shrinker
 
 environment:
@@ -19,5 +18,4 @@ dependencies:
 
 dev_dependencies:
   dart_flutter_team_lints: ^2.0.0
-  lints: ^2.0.0
   test: ^1.21.0
diff --git a/pkgs/messages_shrinker/test/message_shrinker_test.dart b/pkgs/messages_shrinker/test/message_shrinker_test.dart
index 66902c19..52737bf8 100644
--- a/pkgs/messages_shrinker/test/message_shrinker_test.dart
+++ b/pkgs/messages_shrinker/test/message_shrinker_test.dart
@@ -2,13 +2,16 @@
 // 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.
 
+@TestOn('vm')
+library;
+
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:build/build.dart';
 import 'package:messages/package_intl_object.dart';
 import 'package:messages_builder/arb_parser.dart';
-import 'package:messages_deserializer/messages_deserializer_json.dart';
+import 'package:messages_deserializer/messages_deserializer.dart';
 import 'package:messages_serializer/messages_serializer.dart';
 import 'package:messages_shrinker/messages_shrinker.dart';
 import 'package:test/test.dart';
@@ -37,23 +40,25 @@ void main() {
     final generateStringAtIndex = deserialize.generateStringAtIndex(1, args);
     expect(generateStringAtIndex, getMessage(messageIndex, args));
   });
+  test(
+    'Shrink a json with const from file',
+    () {
+      final outputFile = '/tmp/shrunkFile.json';
+      MessageShrinker().shrink(
+        dataFile,
+        'test/const_files.json',
+        outputFile,
+      );
 
-  test('Shrink a json with const from file', () {
-    final outputFile = '/tmp/shrunkFile.json';
-    MessageShrinker().shrink(
-      dataFile,
-      'test/const_files.json',
-      outputFile,
-    );
-
-    final dataFileContentsShrunk = File(outputFile).readAsStringSync();
-    expect(dataFileContentsShrunk.length, lessThan(dataFileContents.length));
-    final deserialize =
-        JsonDeserializer(dataFileContentsShrunk).deserialize(intl);
-    final args = [2];
-    final generateStringAtIndex = deserialize.generateStringAtIndex(1, args);
-    expect(generateStringAtIndex, getMessage(1, args));
-  });
+      final dataFileContentsShrunk = File(outputFile).readAsStringSync();
+      expect(dataFileContentsShrunk.length, lessThan(dataFileContents.length));
+      final deserialize =
+          JsonDeserializer(dataFileContentsShrunk).deserialize(intl);
+      final args = [2];
+      final generateStringAtIndex = deserialize.generateStringAtIndex(1, args);
+      expect(generateStringAtIndex, getMessage(1, args));
+    },
+  );
 }
 
 String readArbFileToDataFile() {