diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc95ad6a..80557a58 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,35 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## 2024-07-04
+
+### Changes
+
+---
+
+Packages with breaking changes:
+
+ - There are no breaking changes in this release.
+
+Packages with other changes:
+
+ - [`powersync` - `v1.3.0-alpha.8`](#powersync---v130-alpha8)
+ - [`powersync_attachments_helper` - `v0.3.0-alpha.3`](#powersync_attachments_helper---v030-alpha3)
+
+Packages with dependency updates only:
+
+> Packages listed below depend on other packages in this workspace that have had changes. Their versions have been incremented to bump the minimum dependency versions of the packages they depend upon in this project.
+
+ - `powersync_attachments_helper` - `v0.3.0-alpha.3`
+
+---
+
+#### `powersync` - `v1.3.0-alpha.8`
+
+ - **FIX**(powersync-attachements-helper): pubspec file (#29).
+ - **DOCS**: update readme and getting started (#51).
+
+
 ## 2024-05-30
 
 ### Changes
diff --git a/demos/supabase-anonymous-auth/pubspec.lock b/demos/supabase-anonymous-auth/pubspec.lock
index 4b329fdf..3578096b 100644
--- a/demos/supabase-anonymous-auth/pubspec.lock
+++ b/demos/supabase-anonymous-auth/pubspec.lock
@@ -480,10 +480,10 @@ packages:
     dependency: "direct main"
     description:
       name: sqlite_async
-      sha256: bf989697c50db97043702c625330895a8ebec4491548a8e46d315b9f60b7582e
+      sha256: "7c5a9bec86b6f5b7511b9ba30974fa7ea470aee2dc0d5b7021f6321a439a8d63"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.0-alpha.5"
+    version: "0.8.0"
   stack_trace:
     dependency: transitive
     description:
diff --git a/demos/supabase-anonymous-auth/pubspec.yaml b/demos/supabase-anonymous-auth/pubspec.yaml
index 33eda935..4dc04e83 100644
--- a/demos/supabase-anonymous-auth/pubspec.yaml
+++ b/demos/supabase-anonymous-auth/pubspec.yaml
@@ -11,12 +11,12 @@ dependencies:
   flutter:
     sdk: flutter
 
-  powersync: ^1.3.0-alpha.7
+  powersync: 1.3.0-alpha.8
   path_provider: ^2.1.1
   supabase_flutter: ^2.0.2
   path: ^1.8.3
   logging: ^1.2.0
-  sqlite_async: 0.7.0-alpha.5
+  sqlite_async: ^0.8.0
   universal_io: ^2.2.2
 
 dev_dependencies:
diff --git a/demos/supabase-edge-function-auth/pubspec.lock b/demos/supabase-edge-function-auth/pubspec.lock
index 4b329fdf..3578096b 100644
--- a/demos/supabase-edge-function-auth/pubspec.lock
+++ b/demos/supabase-edge-function-auth/pubspec.lock
@@ -480,10 +480,10 @@ packages:
     dependency: "direct main"
     description:
       name: sqlite_async
-      sha256: bf989697c50db97043702c625330895a8ebec4491548a8e46d315b9f60b7582e
+      sha256: "7c5a9bec86b6f5b7511b9ba30974fa7ea470aee2dc0d5b7021f6321a439a8d63"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.0-alpha.5"
+    version: "0.8.0"
   stack_trace:
     dependency: transitive
     description:
diff --git a/demos/supabase-edge-function-auth/pubspec.yaml b/demos/supabase-edge-function-auth/pubspec.yaml
index fedddfcd..a6d8e5bd 100644
--- a/demos/supabase-edge-function-auth/pubspec.yaml
+++ b/demos/supabase-edge-function-auth/pubspec.yaml
@@ -11,12 +11,12 @@ dependencies:
   flutter:
     sdk: flutter
 
-  powersync: ^1.3.0-alpha.7
+  powersync: 1.3.0-alpha.8
   path_provider: ^2.1.1
   supabase_flutter: ^2.0.2
   path: ^1.8.3
   logging: ^1.2.0
-  sqlite_async: 0.7.0-alpha.5
+  sqlite_async: ^0.8.0
   universal_io: ^2.2.2
 
 dev_dependencies:
diff --git a/demos/supabase-simple-chat/pubspec.lock b/demos/supabase-simple-chat/pubspec.lock
index fca23bb9..7cb0dc60 100644
--- a/demos/supabase-simple-chat/pubspec.lock
+++ b/demos/supabase-simple-chat/pubspec.lock
@@ -536,10 +536,10 @@ packages:
     dependency: transitive
     description:
       name: sqlite_async
-      sha256: bf989697c50db97043702c625330895a8ebec4491548a8e46d315b9f60b7582e
+      sha256: "7c5a9bec86b6f5b7511b9ba30974fa7ea470aee2dc0d5b7021f6321a439a8d63"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.0-alpha.5"
+    version: "0.8.0"
   stack_trace:
     dependency: transitive
     description:
diff --git a/demos/supabase-simple-chat/pubspec.yaml b/demos/supabase-simple-chat/pubspec.yaml
index 6a9a84cd..70ebaf6c 100644
--- a/demos/supabase-simple-chat/pubspec.yaml
+++ b/demos/supabase-simple-chat/pubspec.yaml
@@ -37,7 +37,7 @@ dependencies:
 
   supabase_flutter: ^1.10.25
   timeago: ^3.6.0
-  powersync: ^1.3.0-alpha.7
+  powersync: 1.3.0-alpha.8
   path_provider: ^2.1.1
   path: ^1.8.3
   logging: ^1.2.0
diff --git a/demos/supabase-todolist/pubspec.lock b/demos/supabase-todolist/pubspec.lock
index ade0e5ee..d494f966 100644
--- a/demos/supabase-todolist/pubspec.lock
+++ b/demos/supabase-todolist/pubspec.lock
@@ -591,10 +591,10 @@ packages:
     dependency: "direct main"
     description:
       name: sqlite_async
-      sha256: bf989697c50db97043702c625330895a8ebec4491548a8e46d315b9f60b7582e
+      sha256: "7c5a9bec86b6f5b7511b9ba30974fa7ea470aee2dc0d5b7021f6321a439a8d63"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.0-alpha.5"
+    version: "0.8.0"
   stack_trace:
     dependency: transitive
     description:
diff --git a/demos/supabase-todolist/pubspec.yaml b/demos/supabase-todolist/pubspec.yaml
index aaa6f74d..11e8ae6f 100644
--- a/demos/supabase-todolist/pubspec.yaml
+++ b/demos/supabase-todolist/pubspec.yaml
@@ -10,9 +10,9 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  powersync_attachments_helper: ^0.3.0-alpha.2
+  powersync_attachments_helper: ^0.3.0-alpha.3
 
-  powersync: ^1.3.0-alpha.7
+  powersync: 1.3.0-alpha.8
   path_provider: ^2.1.1
   supabase_flutter: ^2.0.1
   path: ^1.8.3
@@ -20,7 +20,7 @@ dependencies:
   camera: ^0.10.5+7
   image: ^4.1.3
   universal_io: ^2.2.2
-  sqlite_async: 0.7.0-alpha.5
+  sqlite_async: ^0.8.0
 
 dev_dependencies:
   flutter_test:
diff --git a/packages/powersync/CHANGELOG.md b/packages/powersync/CHANGELOG.md
index 227bfdc9..087f3c2d 100644
--- a/packages/powersync/CHANGELOG.md
+++ b/packages/powersync/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 1.3.0-alpha.8
+
+- **FIX**(powersync-attachements-helper): pubspec file (#29).
+- **DOCS**: update readme and getting started (#51).
+- Updates and uses the latest `sqlite_async` package.
+
 ## 1.3.0-alpha.7
 
 - Updates and uses the latest `sqlite_async` alpha.
diff --git a/packages/powersync/lib/src/database/native/native_powersync_database.dart b/packages/powersync/lib/src/database/native/native_powersync_database.dart
index c5d8cb08..4044c0df 100644
--- a/packages/powersync/lib/src/database/native/native_powersync_database.dart
+++ b/packages/powersync/lib/src/database/native/native_powersync_database.dart
@@ -325,7 +325,7 @@ Future<void> _powerSyncDatabaseIsolate(
   }
 
   runZonedGuarded(() async {
-    db = await args.dbRef.openFactory
+    db = args.dbRef.openFactory
         .open(SqliteOpenOptions(primaryConnection: false, readOnly: false));
     final connection = SyncSqliteConnection(db!, mutex);
 
diff --git a/packages/powersync/lib/src/open_factory/abstract_powersync_open_factory.dart b/packages/powersync/lib/src/open_factory/abstract_powersync_open_factory.dart
index 664d73e1..f89f2b80 100644
--- a/packages/powersync/lib/src/open_factory/abstract_powersync_open_factory.dart
+++ b/packages/powersync/lib/src/open_factory/abstract_powersync_open_factory.dart
@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'package:universal_io/io.dart';
 import 'dart:math';
 
 import 'package:powersync/sqlite_async.dart';
@@ -28,8 +29,8 @@ abstract class AbstractPowerSyncOpenFactory extends DefaultSqliteOpenFactory {
   }
 
   @override
-  FutureOr<CommonDatabase> open(SqliteOpenOptions options) async {
-    var db = await _retriedOpen(options);
+  CommonDatabase open(SqliteOpenOptions options) {
+    var db = _retriedOpen(options);
     for (final statement in pragmaStatements(options)) {
       db.select(statement);
     }
@@ -48,7 +49,7 @@ abstract class AbstractPowerSyncOpenFactory extends DefaultSqliteOpenFactory {
   /// Usually a delay of 1-2ms is sufficient for the next try to succeed, but
   /// we increase the retry delay up to 16ms per retry, and a maximum of 500ms
   /// in total.
-  FutureOr<CommonDatabase> _retriedOpen(SqliteOpenOptions options) async {
+  CommonDatabase _retriedOpen(SqliteOpenOptions options) {
     final stopwatch = Stopwatch()..start();
     var retryDelay = 2;
     while (stopwatch.elapsedMilliseconds < 500) {
@@ -56,7 +57,7 @@ abstract class AbstractPowerSyncOpenFactory extends DefaultSqliteOpenFactory {
         return super.open(options);
       } catch (e) {
         if (e is SqliteException && e.resultCode == 5) {
-          await Future.delayed(Duration(milliseconds: retryDelay));
+          sleep(Duration(milliseconds: retryDelay));
           retryDelay = min(retryDelay * 2, 16);
           continue;
         }
diff --git a/packages/powersync/lib/src/open_factory/native/native_open_factory.dart b/packages/powersync/lib/src/open_factory/native/native_open_factory.dart
index 949d578d..59416291 100644
--- a/packages/powersync/lib/src/open_factory/native/native_open_factory.dart
+++ b/packages/powersync/lib/src/open_factory/native/native_open_factory.dart
@@ -1,5 +1,4 @@
-import 'dart:async';
-import 'dart:io';
+import 'package:universal_io/io.dart';
 import 'dart:isolate';
 import 'package:powersync/src/open_factory/abstract_powersync_open_factory.dart';
 import 'package:sqlite_async/sqlite3.dart' as sqlite;
@@ -59,10 +58,10 @@ class PowerSyncOpenFactory extends AbstractPowerSyncOpenFactory {
   }
 
   @override
-  FutureOr<CommonDatabase> open(SqliteOpenOptions options) async {
+  CommonDatabase open(SqliteOpenOptions options) {
     // ignore: deprecated_member_use_from_same_package
     _sqliteSetup?.setup();
-    var db = await super.open(options);
+    var db = super.open(options);
     db.execute('PRAGMA recursive_triggers = TRUE');
     return db;
   }
diff --git a/packages/powersync/pubspec.yaml b/packages/powersync/pubspec.yaml
index 28d85679..25a1a5c3 100644
--- a/packages/powersync/pubspec.yaml
+++ b/packages/powersync/pubspec.yaml
@@ -1,5 +1,5 @@
 name: powersync
-version: 1.3.0-alpha.7
+version: 1.3.0-alpha.8
 homepage: https://powersync.com
 repository: https://github.com/powersync-ja/powersync.dart
 description: PowerSync Flutter SDK - keep PostgreSQL databases in sync with on-device SQLite databases.
@@ -10,7 +10,8 @@ dependencies:
   flutter:
     sdk: flutter
 
-  sqlite_async: 0.7.0-alpha.5
+  sqlite_async: ^0.8.0
+  universal_io: ^2.0.0
   sqlite3_flutter_libs: ^0.5.15
   meta: ^1.0.0
   http: ^1.1.0
diff --git a/packages/powersync/test/utils/native_test_utils.dart b/packages/powersync/test/utils/native_test_utils.dart
index c1dcaa73..00d3e429 100644
--- a/packages/powersync/test/utils/native_test_utils.dart
+++ b/packages/powersync/test/utils/native_test_utils.dart
@@ -14,7 +14,7 @@ class TestOpenFactory extends PowerSyncOpenFactory {
   TestOpenFactory({required super.path});
 
   @override
-  FutureOr<CommonDatabase> open(SqliteOpenOptions options) {
+  CommonDatabase open(SqliteOpenOptions options) {
     sqlite_open.open.overrideFor(sqlite_open.OperatingSystem.linux, () {
       return DynamicLibrary.open('libsqlite3.so.0');
     });
diff --git a/packages/powersync_attachments_helper/CHANGELOG.md b/packages/powersync_attachments_helper/CHANGELOG.md
index 79d05e44..4e54661b 100644
--- a/packages/powersync_attachments_helper/CHANGELOG.md
+++ b/packages/powersync_attachments_helper/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.3.0-alpha.3
+
+ - Update a dependency to the latest release.
+
 ## 0.3.0-alpha.2
 
 > Note: This release has breaking changes.
diff --git a/packages/powersync_attachments_helper/pubspec.yaml b/packages/powersync_attachments_helper/pubspec.yaml
index f39cbffc..1f43e557 100644
--- a/packages/powersync_attachments_helper/pubspec.yaml
+++ b/packages/powersync_attachments_helper/pubspec.yaml
@@ -1,6 +1,6 @@
 name: powersync_attachments_helper
 description: A helper library for handling attachments when using PowerSync.
-version: 0.3.0-alpha.2
+version: 0.3.0-alpha.3
 repository: https://github.com/powersync-ja/powersync.dart
 homepage: https://www.powersync.com/
 environment:
@@ -10,7 +10,7 @@ dependencies:
   flutter:
     sdk: flutter
 
-  powersync: ^1.3.0-alpha.7
+  powersync: 1.3.0-alpha.8
   logging: ^1.2.0
   sqlite3: "^2.4.4"
   path_provider: ^2.0.13
diff --git a/pubspec.lock b/pubspec.lock
index 02fdf572..0ffee54d 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -266,7 +266,7 @@ packages:
     source: hosted
     version: "2.1.0"
   path:
-    dependency: transitive
+    dependency: "direct dev"
     description:
       name: path
       sha256: "087ce49c3f0dc39180befefc60fdb4acd8f8620e5682fe2476afd0b3688bb4af"
diff --git a/pubspec.yaml b/pubspec.yaml
index a192f2c4..829a05de 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -3,7 +3,7 @@ description: A sample command-line application.
 version: 1.0.0
 
 environment:
-  sdk: '>=3.3.0 <4.0.0'
+  sdk: ">=3.3.0 <4.0.0"
 
 # Add regular dependencies here.
 
@@ -11,3 +11,4 @@ dev_dependencies:
   lints: ^2.1.1
   melos: ^3.4.0
   test: ^1.25.0
+  path: ^1.0.0