diff --git a/Cargo.lock b/Cargo.lock
index 777eec920..225d6fae1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -539,7 +539,6 @@ dependencies = [
  "instant",
  "pin-project-lite",
  "rand",
- "tokio",
 ]
 
 [[package]]
@@ -795,9 +794,9 @@ dependencies = [
 
 [[package]]
 name = "core-foundation"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "194a7a9e6de53fa55116934067c844d9d749312f75c6f6d0980e8c252f8c2146"
+checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -805,9 +804,9 @@ dependencies = [
 
 [[package]]
 name = "core-foundation-sys"
-version = "0.8.4"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
+checksum = "06ea2b9bc92be3c2baa9334a323ebca2d6f074ff852cd1d7b11064035cd3868f"
 
 [[package]]
 name = "cpufeatures"
@@ -1810,9 +1809,9 @@ checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.4.11"
+version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "969488b55f8ac402214f3f5fd243ebb7206cf82de60d3172994707a4bcc2b829"
+checksum = "c4cd1a83af159aa67994778be9070f0ae1bd732942279cabb14f86f986a21456"
 
 [[package]]
 name = "local-channel"
@@ -1872,7 +1871,6 @@ dependencies = [
  "actix-cors",
  "actix-web",
  "actix-web-actors",
- "backoff",
  "clap",
  "derive_more",
  "dotenv",
@@ -1933,7 +1931,6 @@ name = "medea-jason"
 version = "0.4.0"
 dependencies = [
  "android_logger",
- "anyhow",
  "async-recursion",
  "async-trait",
  "backoff",
@@ -2630,15 +2627,15 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.38.25"
+version = "0.38.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc99bc2d4f1fed22595588a013687477aedf3cdcfb26558c559edb67b4d9b22e"
+checksum = "9470c4bf8246c8daf25f9598dca807fb6510347b1e1cfa55749113850c79d88a"
 dependencies = [
  "bitflags 2.4.1",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.48.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -4044,18 +4041,18 @@ dependencies = [
 
 [[package]]
 name = "zerocopy"
-version = "0.7.26"
+version = "0.7.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e97e415490559a91254a2979b4829267a57d2fcd741a98eee8b722fb57289aa0"
+checksum = "7d6f15f7ade05d2a4935e34a457b936c23dc70a05cc1d97133dc99e7a3fe0f0e"
 dependencies = [
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.7.26"
+version = "0.7.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd7e48ccf166952882ca8bd778a43502c64f33bf94c12ebe2a7f08e5a0f6689f"
+checksum = "dbbad221e3f78500350ecbd7dfa4e63ef945c05f4c61cb7f4d3f84cd0bba649b"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 281205c94..454f283ff 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -61,7 +61,6 @@ android_logger = "0.13"
 simple_logger = "4.0"
 
 [target.'cfg(not(target_family = "wasm"))'.dependencies]
-anyhow = "1.0"
 dart-sys = "4.0"
 flutter_rust_bridge = { version = "=1.82.4", default-features = false }
 libc = "0.2"
diff --git a/e2e/src/browser/mock/websocket.rs b/e2e/src/browser/mock/websocket.rs
index 76d81c210..b3145f133 100644
--- a/e2e/src/browser/mock/websocket.rs
+++ b/e2e/src/browser/mock/websocket.rs
@@ -54,18 +54,14 @@ impl<'a> WebSocket<'a> {
         self.0
             .execute(Statement::new(
                 // language=JavaScript
-                r#"
+                "
                 async () => {
                     const [code] = args;
                     for (socket of window.wsMock.allSockets) {
-                        window.wsMock.isClosed = true;
-                        window.wsMock.closeCode = code;
-                        socket.dispatchEvent(
-                            new CloseEvent("close", { code: code })
-                        );
+                        socket.close(code);
                     }
                 }
-                "#,
+                ",
                 [code.into()],
             ))
             .await
diff --git a/e2e/tests/features/state_synchronization.feature b/e2e/tests/features/state_synchronization.feature
index 51ece66f1..e33fbc191 100644
--- a/e2e/tests/features/state_synchronization.feature
+++ b/e2e/tests/features/state_synchronization.feature
@@ -27,7 +27,6 @@ Feature: State synchronization
     And Alice restores WS connection
     Then Bob's audio remote track from Alice is enabled
 
-  @mesh
   Scenario: Audio endpoint added while disconnected
     Given room with joined member Alice and Bob with no WebRTC endpoints
     When Alice loses WS connection
@@ -36,7 +35,6 @@ Feature: State synchronization
     Then Alice has audio remote tracks from Bob
     And Bob has audio remote tracks from Alice
 
-  @mesh
   Scenario: Video endpoint added while disconnected
     Given room with joined member Alice and Bob with no WebRTC endpoints
     When Alice loses WS connection
@@ -45,7 +43,6 @@ Feature: State synchronization
     Then Alice has video remote tracks from Bob
     And Bob has video remote tracks from Alice
 
-  @mesh
   Scenario: New endpoint creates new tracks
     Given room with joined member Alice and Bob with no WebRTC endpoints
     When Alice loses WS connection
diff --git a/e2e/tests/steps/websocket.rs b/e2e/tests/steps/websocket.rs
index 71ef10881..36fa46422 100644
--- a/e2e/tests/steps/websocket.rs
+++ b/e2e/tests/steps/websocket.rs
@@ -1,11 +1,15 @@
+use std::time::Duration;
+
 use cucumber::{then, when};
+use tokio::time::sleep;
 
 use crate::World;
 
 #[when(regex = r"^(\S+) loses WS connection$")]
 async fn ws_connection_loss(world: &mut World, id: String) {
     let member = world.get_member(&id).unwrap();
-    member.ws_mock().enable_connection_loss(9999).await;
+    member.ws_mock().enable_connection_loss(3999).await;
+    sleep(Duration::from_millis(500)).await;
 }
 
 #[when(regex = r"^(\S+) restores WS connection$")]
diff --git a/flutter/example/pubspec.lock b/flutter/example/pubspec.lock
index 5e51ea64e..3beed586c 100644
--- a/flutter/example/pubspec.lock
+++ b/flutter/example/pubspec.lock
@@ -318,10 +318,10 @@ packages:
     dependency: "direct main"
     description:
       name: medea_flutter_webrtc
-      sha256: f4d5aa921795d8509dbeeafe83b38e7e7441e2a7d0542a7f4e5c5b723616501e
+      sha256: "5b308b88d7eba6279971c218cfddb374e2f60977811cc9b5cf30f26379a66a97"
       url: "https://pub.dev"
     source: hosted
-    version: "0.8.3-dev+rev.d5a07ce262833b307e4b0e5d39badd55eadf812a"
+    version: "0.8.3-dev+rev.0fe64b4610154ddb7e8774a952b6ecf6369b7633"
   medea_jason:
     dependency: "direct main"
     description:
@@ -365,10 +365,10 @@ packages:
     dependency: transitive
     description:
       name: petitparser
-      sha256: eeb2d1428ee7f4170e2bd498827296a18d4e7fc462b71727d111c0ac7707cfa6
+      sha256: c15605cd28af66339f8eb6fbe0e541bfe2d1b72d5825efc6598f3e0a31b9ad27
       url: "https://pub.dev"
     source: hosted
-    version: "6.0.1"
+    version: "6.0.2"
   platform:
     dependency: transitive
     description:
@@ -615,5 +615,5 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.2.0-194.0.dev <4.0.0"
+  dart: ">=3.2.0 <4.0.0"
   flutter: ">=3.10.0"
diff --git a/flutter/example/pubspec.yaml b/flutter/example/pubspec.yaml
index 4fc14f222..8d9c950e4 100644
--- a/flutter/example/pubspec.yaml
+++ b/flutter/example/pubspec.yaml
@@ -23,7 +23,7 @@ dependencies:
   faker_dart: ^0.1.11
   freezed_annotation: ^2.2.0
   http: ^0.13.6
-  medea_flutter_webrtc: 0.8.3-dev+rev.d5a07ce262833b307e4b0e5d39badd55eadf812a
+  medea_flutter_webrtc: 0.8.3-dev+rev.0fe64b4610154ddb7e8774a952b6ecf6369b7633
   retry: ^3.1.2
 
 dev_dependencies:
diff --git a/flutter/lib/src/native/connection_handle.dart b/flutter/lib/src/native/connection_handle.dart
index c238308aa..8b300da4a 100644
--- a/flutter/lib/src/native/connection_handle.dart
+++ b/flutter/lib/src/native/connection_handle.dart
@@ -1,5 +1,3 @@
-import 'package:flutter_rust_bridge/flutter_rust_bridge.dart';
-
 import 'package:medea_jason/src/native/remote_media_track.dart';
 import '../interface/connection_handle.dart';
 import '../interface/media_track.dart';
@@ -22,45 +20,29 @@ class NativeConnectionHandle implements ConnectionHandle {
 
   @override
   String getRemoteMemberId() {
-    try {
-      return api.connectionHandleGetRemoteMemberId(
-          connection: opaque.innerOpaque);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    return api.connectionHandleGetRemoteMemberId(
+        connection: opaque.innerOpaque);
   }
 
   @override
   void onClose(void Function() f) {
-    try {
-      api.connectionHandleOnClose(connection: opaque.innerOpaque, f: f);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    api.connectionHandleOnClose(connection: opaque.innerOpaque, f: f);
   }
 
   @override
   void onRemoteTrackAdded(void Function(RemoteMediaTrack) f) {
-    try {
-      api.connectionHandleOnRemoteTrackAdded(
-          connection: opaque.innerOpaque,
-          f: (t) {
-            f(NativeRemoteMediaTrack(
-                api.remoteMediaTrackFromPtr(ptr: t.address)));
-          });
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    api.connectionHandleOnRemoteTrackAdded(
+        connection: opaque.innerOpaque,
+        f: (t) {
+          f(NativeRemoteMediaTrack(
+              api.remoteMediaTrackFromPtr(ptr: t.address)));
+        });
   }
 
   @override
   void onQualityScoreUpdate(void Function(int) f) {
-    try {
-      api.connectionHandleOnQualityScoreUpdate(
-          connection: opaque.innerOpaque, f: f);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    api.connectionHandleOnQualityScoreUpdate(
+        connection: opaque.innerOpaque, f: f);
   }
 
   @moveSemantics
@@ -75,41 +57,25 @@ class NativeConnectionHandle implements ConnectionHandle {
 
   @override
   Future<void> enableRemoteAudio() async {
-    try {
-      await (api.connectionHandleEnableRemoteAudio(
-          connection: opaque.innerOpaque) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.connectionHandleEnableRemoteAudio(connection: opaque.innerOpaque)
+        as Future);
   }
 
   @override
   Future<void> disableRemoteAudio() async {
-    try {
-      await (api.connectionHandleDisableRemoteAudio(
-          connection: opaque.innerOpaque) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.connectionHandleDisableRemoteAudio(
+        connection: opaque.innerOpaque) as Future);
   }
 
   @override
   Future<void> enableRemoteVideo([MediaSourceKind? kind]) async {
-    try {
-      await (api.connectionHandleEnableRemoteVideo(
-          connection: opaque.innerOpaque, sourceKind: kind) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.connectionHandleEnableRemoteVideo(
+        connection: opaque.innerOpaque, sourceKind: kind) as Future);
   }
 
   @override
   Future<void> disableRemoteVideo([MediaSourceKind? kind]) async {
-    try {
-      await (api.connectionHandleDisableRemoteVideo(
-          connection: opaque.innerOpaque, sourceKind: kind) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.connectionHandleDisableRemoteVideo(
+        connection: opaque.innerOpaque, sourceKind: kind) as Future);
   }
 }
diff --git a/flutter/lib/src/native/ffi/jason_api.g.dart b/flutter/lib/src/native/ffi/jason_api.g.dart
index 1f54b8adc..362d96d00 100644
--- a/flutter/lib/src/native/ffi/jason_api.g.dart
+++ b/flutter/lib/src/native/ffi/jason_api.g.dart
@@ -1083,7 +1083,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () =>
           _platform.inner.wire_connection_handle_on_close(arg0, arg1),
       parseSuccessData: _wire2api_unit,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kConnectionHandleOnCloseConstMeta,
       argValues: [connection, f],
       hint: hint,
@@ -1104,7 +1104,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () => _platform.inner
           .wire_connection_handle_on_remote_track_added(arg0, arg1),
       parseSuccessData: _wire2api_unit,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kConnectionHandleOnRemoteTrackAddedConstMeta,
       argValues: [connection, f],
       hint: hint,
@@ -1126,7 +1126,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () => _platform.inner
           .wire_connection_handle_on_quality_score_update(arg0, arg1),
       parseSuccessData: _wire2api_unit,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kConnectionHandleOnQualityScoreUpdateConstMeta,
       argValues: [connection, f],
       hint: hint,
@@ -1147,7 +1147,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () =>
           _platform.inner.wire_connection_handle_get_remote_member_id(arg0),
       parseSuccessData: _wire2api_String,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kConnectionHandleGetRemoteMemberIdConstMeta,
       argValues: [connection],
       hint: hint,
@@ -1714,7 +1714,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () => _platform.inner
           .wire_media_manager_handle_on_device_change(arg0, arg1),
       parseSuccessData: _wire2api_unit,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kMediaManagerHandleOnDeviceChangeConstMeta,
       argValues: [manager, cb],
       hint: hint,
@@ -2162,7 +2162,7 @@ class MedeaJasonImpl implements MedeaJason {
     return _platform.executeSync(FlutterRustBridgeSyncTask(
       callFfi: () => _platform.inner.wire_room_handle_mute_video(arg0, arg1),
       parseSuccessData: _wire2api_DartOpaque,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: null,
       constMeta: kRoomHandleMuteVideoConstMeta,
       argValues: [roomHandle, sourceKind],
       hint: hint,
@@ -2184,7 +2184,7 @@ class MedeaJasonImpl implements MedeaJason {
     return _platform.executeSync(FlutterRustBridgeSyncTask(
       callFfi: () => _platform.inner.wire_room_handle_unmute_video(arg0, arg1),
       parseSuccessData: _wire2api_DartOpaque,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: null,
       constMeta: kRoomHandleUnmuteVideoConstMeta,
       argValues: [roomHandle, sourceKind],
       hint: hint,
@@ -2206,7 +2206,7 @@ class MedeaJasonImpl implements MedeaJason {
     return _platform.executeSync(FlutterRustBridgeSyncTask(
       callFfi: () => _platform.inner.wire_room_handle_enable_video(arg0, arg1),
       parseSuccessData: _wire2api_DartOpaque,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: null,
       constMeta: kRoomHandleEnableVideoConstMeta,
       argValues: [roomHandle, sourceKind],
       hint: hint,
@@ -2228,7 +2228,7 @@ class MedeaJasonImpl implements MedeaJason {
     return _platform.executeSync(FlutterRustBridgeSyncTask(
       callFfi: () => _platform.inner.wire_room_handle_disable_video(arg0, arg1),
       parseSuccessData: _wire2api_DartOpaque,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: null,
       constMeta: kRoomHandleDisableVideoConstMeta,
       argValues: [roomHandle, sourceKind],
       hint: hint,
@@ -2290,7 +2290,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () =>
           _platform.inner.wire_room_handle_enable_remote_video(arg0, arg1),
       parseSuccessData: _wire2api_DartOpaque,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: null,
       constMeta: kRoomHandleEnableRemoteVideoConstMeta,
       argValues: [roomHandle, sourceKind],
       hint: hint,
@@ -2313,7 +2313,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () =>
           _platform.inner.wire_room_handle_disable_remote_video(arg0, arg1),
       parseSuccessData: _wire2api_DartOpaque,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: null,
       constMeta: kRoomHandleDisableRemoteVideoConstMeta,
       argValues: [roomHandle, sourceKind],
       hint: hint,
@@ -2334,7 +2334,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () =>
           _platform.inner.wire_room_handle_on_new_connection(arg0, arg1),
       parseSuccessData: _wire2api_unit,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kRoomHandleOnNewConnectionConstMeta,
       argValues: [roomHandle, cb],
       hint: hint,
@@ -2354,7 +2354,7 @@ class MedeaJasonImpl implements MedeaJason {
     return _platform.executeSync(FlutterRustBridgeSyncTask(
       callFfi: () => _platform.inner.wire_room_handle_on_close(arg0, arg1),
       parseSuccessData: _wire2api_unit,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kRoomHandleOnCloseConstMeta,
       argValues: [roomHandle, cb],
       hint: hint,
@@ -2375,7 +2375,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () =>
           _platform.inner.wire_room_handle_on_local_track(arg0, arg1),
       parseSuccessData: _wire2api_unit,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kRoomHandleOnLocalTrackConstMeta,
       argValues: [roomHandle, cb],
       hint: hint,
@@ -2396,7 +2396,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () =>
           _platform.inner.wire_room_handle_on_connection_loss(arg0, arg1),
       parseSuccessData: _wire2api_unit,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kRoomHandleOnConnectionLossConstMeta,
       argValues: [roomHandle, cb],
       hint: hint,
@@ -2417,7 +2417,7 @@ class MedeaJasonImpl implements MedeaJason {
       callFfi: () =>
           _platform.inner.wire_room_handle_on_failed_local_media(arg0, arg1),
       parseSuccessData: _wire2api_unit,
-      parseErrorData: _wire2api_FrbAnyhowException,
+      parseErrorData: _wire2api_DartOpaque,
       constMeta: kRoomHandleOnFailedLocalMediaConstMeta,
       argValues: [roomHandle, cb],
       hint: hint,
@@ -2487,10 +2487,6 @@ class MedeaJasonImpl implements MedeaJason {
     return _platform.inner.get_dart_object(raw);
   }
 
-  FrbAnyhowException _wire2api_FrbAnyhowException(dynamic raw) {
-    return FrbAnyhowException(raw as String);
-  }
-
   Jason _wire2api_Jason(dynamic raw) {
     return Jason.fromRaw(raw[0], raw[1], this);
   }
diff --git a/flutter/lib/src/native/ffi/jason_api.g.freezed.dart b/flutter/lib/src/native/ffi/jason_api.g.freezed.dart
index 8b1fffad4..677c87cff 100644
--- a/flutter/lib/src/native/ffi/jason_api.g.freezed.dart
+++ b/flutter/lib/src/native/ffi/jason_api.g.freezed.dart
@@ -1,7 +1,7 @@
 // coverage:ignore-file
 // GENERATED CODE - DO NOT MODIFY BY HAND
 // ignore_for_file: type=lint
-// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
 
 part of 'jason_api.g.dart';
 
@@ -96,25 +96,25 @@ class _$ApiConstrainFacingModeCopyWithImpl<$Res,
 }
 
 /// @nodoc
-abstract class _$$ApiConstrainFacingMode_ExactCopyWith<$Res>
+abstract class _$$ApiConstrainFacingMode_ExactImplCopyWith<$Res>
     implements $ApiConstrainFacingModeCopyWith<$Res> {
-  factory _$$ApiConstrainFacingMode_ExactCopyWith(
-          _$ApiConstrainFacingMode_Exact value,
-          $Res Function(_$ApiConstrainFacingMode_Exact) then) =
-      __$$ApiConstrainFacingMode_ExactCopyWithImpl<$Res>;
+  factory _$$ApiConstrainFacingMode_ExactImplCopyWith(
+          _$ApiConstrainFacingMode_ExactImpl value,
+          $Res Function(_$ApiConstrainFacingMode_ExactImpl) then) =
+      __$$ApiConstrainFacingMode_ExactImplCopyWithImpl<$Res>;
   @override
   @useResult
   $Res call({FacingMode field0});
 }
 
 /// @nodoc
-class __$$ApiConstrainFacingMode_ExactCopyWithImpl<$Res>
+class __$$ApiConstrainFacingMode_ExactImplCopyWithImpl<$Res>
     extends _$ApiConstrainFacingModeCopyWithImpl<$Res,
-        _$ApiConstrainFacingMode_Exact>
-    implements _$$ApiConstrainFacingMode_ExactCopyWith<$Res> {
-  __$$ApiConstrainFacingMode_ExactCopyWithImpl(
-      _$ApiConstrainFacingMode_Exact _value,
-      $Res Function(_$ApiConstrainFacingMode_Exact) _then)
+        _$ApiConstrainFacingMode_ExactImpl>
+    implements _$$ApiConstrainFacingMode_ExactImplCopyWith<$Res> {
+  __$$ApiConstrainFacingMode_ExactImplCopyWithImpl(
+      _$ApiConstrainFacingMode_ExactImpl _value,
+      $Res Function(_$ApiConstrainFacingMode_ExactImpl) _then)
       : super(_value, _then);
 
   @pragma('vm:prefer-inline')
@@ -122,7 +122,7 @@ class __$$ApiConstrainFacingMode_ExactCopyWithImpl<$Res>
   $Res call({
     Object? field0 = null,
   }) {
-    return _then(_$ApiConstrainFacingMode_Exact(
+    return _then(_$ApiConstrainFacingMode_ExactImpl(
       null == field0
           ? _value.field0
           : field0 // ignore: cast_nullable_to_non_nullable
@@ -133,8 +133,9 @@ class __$$ApiConstrainFacingMode_ExactCopyWithImpl<$Res>
 
 /// @nodoc
 
-class _$ApiConstrainFacingMode_Exact implements ApiConstrainFacingMode_Exact {
-  const _$ApiConstrainFacingMode_Exact(this.field0);
+class _$ApiConstrainFacingMode_ExactImpl
+    implements ApiConstrainFacingMode_Exact {
+  const _$ApiConstrainFacingMode_ExactImpl(this.field0);
 
   @override
   final FacingMode field0;
@@ -148,7 +149,7 @@ class _$ApiConstrainFacingMode_Exact implements ApiConstrainFacingMode_Exact {
   bool operator ==(dynamic other) {
     return identical(this, other) ||
         (other.runtimeType == runtimeType &&
-            other is _$ApiConstrainFacingMode_Exact &&
+            other is _$ApiConstrainFacingMode_ExactImpl &&
             (identical(other.field0, field0) || other.field0 == field0));
   }
 
@@ -158,9 +159,10 @@ class _$ApiConstrainFacingMode_Exact implements ApiConstrainFacingMode_Exact {
   @JsonKey(ignore: true)
   @override
   @pragma('vm:prefer-inline')
-  _$$ApiConstrainFacingMode_ExactCopyWith<_$ApiConstrainFacingMode_Exact>
-      get copyWith => __$$ApiConstrainFacingMode_ExactCopyWithImpl<
-          _$ApiConstrainFacingMode_Exact>(this, _$identity);
+  _$$ApiConstrainFacingMode_ExactImplCopyWith<
+          _$ApiConstrainFacingMode_ExactImpl>
+      get copyWith => __$$ApiConstrainFacingMode_ExactImplCopyWithImpl<
+          _$ApiConstrainFacingMode_ExactImpl>(this, _$identity);
 
   @override
   @optionalTypeArgs
@@ -227,36 +229,37 @@ class _$ApiConstrainFacingMode_Exact implements ApiConstrainFacingMode_Exact {
 
 abstract class ApiConstrainFacingMode_Exact implements ApiConstrainFacingMode {
   const factory ApiConstrainFacingMode_Exact(final FacingMode field0) =
-      _$ApiConstrainFacingMode_Exact;
+      _$ApiConstrainFacingMode_ExactImpl;
 
   @override
   FacingMode get field0;
   @override
   @JsonKey(ignore: true)
-  _$$ApiConstrainFacingMode_ExactCopyWith<_$ApiConstrainFacingMode_Exact>
+  _$$ApiConstrainFacingMode_ExactImplCopyWith<
+          _$ApiConstrainFacingMode_ExactImpl>
       get copyWith => throw _privateConstructorUsedError;
 }
 
 /// @nodoc
-abstract class _$$ApiConstrainFacingMode_IdealCopyWith<$Res>
+abstract class _$$ApiConstrainFacingMode_IdealImplCopyWith<$Res>
     implements $ApiConstrainFacingModeCopyWith<$Res> {
-  factory _$$ApiConstrainFacingMode_IdealCopyWith(
-          _$ApiConstrainFacingMode_Ideal value,
-          $Res Function(_$ApiConstrainFacingMode_Ideal) then) =
-      __$$ApiConstrainFacingMode_IdealCopyWithImpl<$Res>;
+  factory _$$ApiConstrainFacingMode_IdealImplCopyWith(
+          _$ApiConstrainFacingMode_IdealImpl value,
+          $Res Function(_$ApiConstrainFacingMode_IdealImpl) then) =
+      __$$ApiConstrainFacingMode_IdealImplCopyWithImpl<$Res>;
   @override
   @useResult
   $Res call({FacingMode field0});
 }
 
 /// @nodoc
-class __$$ApiConstrainFacingMode_IdealCopyWithImpl<$Res>
+class __$$ApiConstrainFacingMode_IdealImplCopyWithImpl<$Res>
     extends _$ApiConstrainFacingModeCopyWithImpl<$Res,
-        _$ApiConstrainFacingMode_Ideal>
-    implements _$$ApiConstrainFacingMode_IdealCopyWith<$Res> {
-  __$$ApiConstrainFacingMode_IdealCopyWithImpl(
-      _$ApiConstrainFacingMode_Ideal _value,
-      $Res Function(_$ApiConstrainFacingMode_Ideal) _then)
+        _$ApiConstrainFacingMode_IdealImpl>
+    implements _$$ApiConstrainFacingMode_IdealImplCopyWith<$Res> {
+  __$$ApiConstrainFacingMode_IdealImplCopyWithImpl(
+      _$ApiConstrainFacingMode_IdealImpl _value,
+      $Res Function(_$ApiConstrainFacingMode_IdealImpl) _then)
       : super(_value, _then);
 
   @pragma('vm:prefer-inline')
@@ -264,7 +267,7 @@ class __$$ApiConstrainFacingMode_IdealCopyWithImpl<$Res>
   $Res call({
     Object? field0 = null,
   }) {
-    return _then(_$ApiConstrainFacingMode_Ideal(
+    return _then(_$ApiConstrainFacingMode_IdealImpl(
       null == field0
           ? _value.field0
           : field0 // ignore: cast_nullable_to_non_nullable
@@ -275,8 +278,9 @@ class __$$ApiConstrainFacingMode_IdealCopyWithImpl<$Res>
 
 /// @nodoc
 
-class _$ApiConstrainFacingMode_Ideal implements ApiConstrainFacingMode_Ideal {
-  const _$ApiConstrainFacingMode_Ideal(this.field0);
+class _$ApiConstrainFacingMode_IdealImpl
+    implements ApiConstrainFacingMode_Ideal {
+  const _$ApiConstrainFacingMode_IdealImpl(this.field0);
 
   @override
   final FacingMode field0;
@@ -290,7 +294,7 @@ class _$ApiConstrainFacingMode_Ideal implements ApiConstrainFacingMode_Ideal {
   bool operator ==(dynamic other) {
     return identical(this, other) ||
         (other.runtimeType == runtimeType &&
-            other is _$ApiConstrainFacingMode_Ideal &&
+            other is _$ApiConstrainFacingMode_IdealImpl &&
             (identical(other.field0, field0) || other.field0 == field0));
   }
 
@@ -300,9 +304,10 @@ class _$ApiConstrainFacingMode_Ideal implements ApiConstrainFacingMode_Ideal {
   @JsonKey(ignore: true)
   @override
   @pragma('vm:prefer-inline')
-  _$$ApiConstrainFacingMode_IdealCopyWith<_$ApiConstrainFacingMode_Ideal>
-      get copyWith => __$$ApiConstrainFacingMode_IdealCopyWithImpl<
-          _$ApiConstrainFacingMode_Ideal>(this, _$identity);
+  _$$ApiConstrainFacingMode_IdealImplCopyWith<
+          _$ApiConstrainFacingMode_IdealImpl>
+      get copyWith => __$$ApiConstrainFacingMode_IdealImplCopyWithImpl<
+          _$ApiConstrainFacingMode_IdealImpl>(this, _$identity);
 
   @override
   @optionalTypeArgs
@@ -369,13 +374,14 @@ class _$ApiConstrainFacingMode_Ideal implements ApiConstrainFacingMode_Ideal {
 
 abstract class ApiConstrainFacingMode_Ideal implements ApiConstrainFacingMode {
   const factory ApiConstrainFacingMode_Ideal(final FacingMode field0) =
-      _$ApiConstrainFacingMode_Ideal;
+      _$ApiConstrainFacingMode_IdealImpl;
 
   @override
   FacingMode get field0;
   @override
   @JsonKey(ignore: true)
-  _$$ApiConstrainFacingMode_IdealCopyWith<_$ApiConstrainFacingMode_Ideal>
+  _$$ApiConstrainFacingMode_IdealImplCopyWith<
+          _$ApiConstrainFacingMode_IdealImpl>
       get copyWith => throw _privateConstructorUsedError;
 }
 
@@ -466,22 +472,22 @@ class _$ConstrainU32CopyWithImpl<$Res, $Val extends ConstrainU32>
 }
 
 /// @nodoc
-abstract class _$$ConstrainU32_ExactCopyWith<$Res>
+abstract class _$$ConstrainU32_ExactImplCopyWith<$Res>
     implements $ConstrainU32CopyWith<$Res> {
-  factory _$$ConstrainU32_ExactCopyWith(_$ConstrainU32_Exact value,
-          $Res Function(_$ConstrainU32_Exact) then) =
-      __$$ConstrainU32_ExactCopyWithImpl<$Res>;
+  factory _$$ConstrainU32_ExactImplCopyWith(_$ConstrainU32_ExactImpl value,
+          $Res Function(_$ConstrainU32_ExactImpl) then) =
+      __$$ConstrainU32_ExactImplCopyWithImpl<$Res>;
   @override
   @useResult
   $Res call({int field0});
 }
 
 /// @nodoc
-class __$$ConstrainU32_ExactCopyWithImpl<$Res>
-    extends _$ConstrainU32CopyWithImpl<$Res, _$ConstrainU32_Exact>
-    implements _$$ConstrainU32_ExactCopyWith<$Res> {
-  __$$ConstrainU32_ExactCopyWithImpl(
-      _$ConstrainU32_Exact _value, $Res Function(_$ConstrainU32_Exact) _then)
+class __$$ConstrainU32_ExactImplCopyWithImpl<$Res>
+    extends _$ConstrainU32CopyWithImpl<$Res, _$ConstrainU32_ExactImpl>
+    implements _$$ConstrainU32_ExactImplCopyWith<$Res> {
+  __$$ConstrainU32_ExactImplCopyWithImpl(_$ConstrainU32_ExactImpl _value,
+      $Res Function(_$ConstrainU32_ExactImpl) _then)
       : super(_value, _then);
 
   @pragma('vm:prefer-inline')
@@ -489,7 +495,7 @@ class __$$ConstrainU32_ExactCopyWithImpl<$Res>
   $Res call({
     Object? field0 = null,
   }) {
-    return _then(_$ConstrainU32_Exact(
+    return _then(_$ConstrainU32_ExactImpl(
       null == field0
           ? _value.field0
           : field0 // ignore: cast_nullable_to_non_nullable
@@ -500,8 +506,8 @@ class __$$ConstrainU32_ExactCopyWithImpl<$Res>
 
 /// @nodoc
 
-class _$ConstrainU32_Exact implements ConstrainU32_Exact {
-  const _$ConstrainU32_Exact(this.field0);
+class _$ConstrainU32_ExactImpl implements ConstrainU32_Exact {
+  const _$ConstrainU32_ExactImpl(this.field0);
 
   @override
   final int field0;
@@ -515,7 +521,7 @@ class _$ConstrainU32_Exact implements ConstrainU32_Exact {
   bool operator ==(dynamic other) {
     return identical(this, other) ||
         (other.runtimeType == runtimeType &&
-            other is _$ConstrainU32_Exact &&
+            other is _$ConstrainU32_ExactImpl &&
             (identical(other.field0, field0) || other.field0 == field0));
   }
 
@@ -525,8 +531,8 @@ class _$ConstrainU32_Exact implements ConstrainU32_Exact {
   @JsonKey(ignore: true)
   @override
   @pragma('vm:prefer-inline')
-  _$$ConstrainU32_ExactCopyWith<_$ConstrainU32_Exact> get copyWith =>
-      __$$ConstrainU32_ExactCopyWithImpl<_$ConstrainU32_Exact>(
+  _$$ConstrainU32_ExactImplCopyWith<_$ConstrainU32_ExactImpl> get copyWith =>
+      __$$ConstrainU32_ExactImplCopyWithImpl<_$ConstrainU32_ExactImpl>(
           this, _$identity);
 
   @override
@@ -599,33 +605,33 @@ class _$ConstrainU32_Exact implements ConstrainU32_Exact {
 }
 
 abstract class ConstrainU32_Exact implements ConstrainU32 {
-  const factory ConstrainU32_Exact(final int field0) = _$ConstrainU32_Exact;
+  const factory ConstrainU32_Exact(final int field0) = _$ConstrainU32_ExactImpl;
 
   @override
   int get field0;
   @override
   @JsonKey(ignore: true)
-  _$$ConstrainU32_ExactCopyWith<_$ConstrainU32_Exact> get copyWith =>
+  _$$ConstrainU32_ExactImplCopyWith<_$ConstrainU32_ExactImpl> get copyWith =>
       throw _privateConstructorUsedError;
 }
 
 /// @nodoc
-abstract class _$$ConstrainU32_IdealCopyWith<$Res>
+abstract class _$$ConstrainU32_IdealImplCopyWith<$Res>
     implements $ConstrainU32CopyWith<$Res> {
-  factory _$$ConstrainU32_IdealCopyWith(_$ConstrainU32_Ideal value,
-          $Res Function(_$ConstrainU32_Ideal) then) =
-      __$$ConstrainU32_IdealCopyWithImpl<$Res>;
+  factory _$$ConstrainU32_IdealImplCopyWith(_$ConstrainU32_IdealImpl value,
+          $Res Function(_$ConstrainU32_IdealImpl) then) =
+      __$$ConstrainU32_IdealImplCopyWithImpl<$Res>;
   @override
   @useResult
   $Res call({int field0});
 }
 
 /// @nodoc
-class __$$ConstrainU32_IdealCopyWithImpl<$Res>
-    extends _$ConstrainU32CopyWithImpl<$Res, _$ConstrainU32_Ideal>
-    implements _$$ConstrainU32_IdealCopyWith<$Res> {
-  __$$ConstrainU32_IdealCopyWithImpl(
-      _$ConstrainU32_Ideal _value, $Res Function(_$ConstrainU32_Ideal) _then)
+class __$$ConstrainU32_IdealImplCopyWithImpl<$Res>
+    extends _$ConstrainU32CopyWithImpl<$Res, _$ConstrainU32_IdealImpl>
+    implements _$$ConstrainU32_IdealImplCopyWith<$Res> {
+  __$$ConstrainU32_IdealImplCopyWithImpl(_$ConstrainU32_IdealImpl _value,
+      $Res Function(_$ConstrainU32_IdealImpl) _then)
       : super(_value, _then);
 
   @pragma('vm:prefer-inline')
@@ -633,7 +639,7 @@ class __$$ConstrainU32_IdealCopyWithImpl<$Res>
   $Res call({
     Object? field0 = null,
   }) {
-    return _then(_$ConstrainU32_Ideal(
+    return _then(_$ConstrainU32_IdealImpl(
       null == field0
           ? _value.field0
           : field0 // ignore: cast_nullable_to_non_nullable
@@ -644,8 +650,8 @@ class __$$ConstrainU32_IdealCopyWithImpl<$Res>
 
 /// @nodoc
 
-class _$ConstrainU32_Ideal implements ConstrainU32_Ideal {
-  const _$ConstrainU32_Ideal(this.field0);
+class _$ConstrainU32_IdealImpl implements ConstrainU32_Ideal {
+  const _$ConstrainU32_IdealImpl(this.field0);
 
   @override
   final int field0;
@@ -659,7 +665,7 @@ class _$ConstrainU32_Ideal implements ConstrainU32_Ideal {
   bool operator ==(dynamic other) {
     return identical(this, other) ||
         (other.runtimeType == runtimeType &&
-            other is _$ConstrainU32_Ideal &&
+            other is _$ConstrainU32_IdealImpl &&
             (identical(other.field0, field0) || other.field0 == field0));
   }
 
@@ -669,8 +675,8 @@ class _$ConstrainU32_Ideal implements ConstrainU32_Ideal {
   @JsonKey(ignore: true)
   @override
   @pragma('vm:prefer-inline')
-  _$$ConstrainU32_IdealCopyWith<_$ConstrainU32_Ideal> get copyWith =>
-      __$$ConstrainU32_IdealCopyWithImpl<_$ConstrainU32_Ideal>(
+  _$$ConstrainU32_IdealImplCopyWith<_$ConstrainU32_IdealImpl> get copyWith =>
+      __$$ConstrainU32_IdealImplCopyWithImpl<_$ConstrainU32_IdealImpl>(
           this, _$identity);
 
   @override
@@ -743,33 +749,33 @@ class _$ConstrainU32_Ideal implements ConstrainU32_Ideal {
 }
 
 abstract class ConstrainU32_Ideal implements ConstrainU32 {
-  const factory ConstrainU32_Ideal(final int field0) = _$ConstrainU32_Ideal;
+  const factory ConstrainU32_Ideal(final int field0) = _$ConstrainU32_IdealImpl;
 
   @override
   int get field0;
   @override
   @JsonKey(ignore: true)
-  _$$ConstrainU32_IdealCopyWith<_$ConstrainU32_Ideal> get copyWith =>
+  _$$ConstrainU32_IdealImplCopyWith<_$ConstrainU32_IdealImpl> get copyWith =>
       throw _privateConstructorUsedError;
 }
 
 /// @nodoc
-abstract class _$$ConstrainU32_RangeCopyWith<$Res>
+abstract class _$$ConstrainU32_RangeImplCopyWith<$Res>
     implements $ConstrainU32CopyWith<$Res> {
-  factory _$$ConstrainU32_RangeCopyWith(_$ConstrainU32_Range value,
-          $Res Function(_$ConstrainU32_Range) then) =
-      __$$ConstrainU32_RangeCopyWithImpl<$Res>;
+  factory _$$ConstrainU32_RangeImplCopyWith(_$ConstrainU32_RangeImpl value,
+          $Res Function(_$ConstrainU32_RangeImpl) then) =
+      __$$ConstrainU32_RangeImplCopyWithImpl<$Res>;
   @override
   @useResult
   $Res call({int field0, int field1});
 }
 
 /// @nodoc
-class __$$ConstrainU32_RangeCopyWithImpl<$Res>
-    extends _$ConstrainU32CopyWithImpl<$Res, _$ConstrainU32_Range>
-    implements _$$ConstrainU32_RangeCopyWith<$Res> {
-  __$$ConstrainU32_RangeCopyWithImpl(
-      _$ConstrainU32_Range _value, $Res Function(_$ConstrainU32_Range) _then)
+class __$$ConstrainU32_RangeImplCopyWithImpl<$Res>
+    extends _$ConstrainU32CopyWithImpl<$Res, _$ConstrainU32_RangeImpl>
+    implements _$$ConstrainU32_RangeImplCopyWith<$Res> {
+  __$$ConstrainU32_RangeImplCopyWithImpl(_$ConstrainU32_RangeImpl _value,
+      $Res Function(_$ConstrainU32_RangeImpl) _then)
       : super(_value, _then);
 
   @pragma('vm:prefer-inline')
@@ -778,7 +784,7 @@ class __$$ConstrainU32_RangeCopyWithImpl<$Res>
     Object? field0 = null,
     Object? field1 = null,
   }) {
-    return _then(_$ConstrainU32_Range(
+    return _then(_$ConstrainU32_RangeImpl(
       null == field0
           ? _value.field0
           : field0 // ignore: cast_nullable_to_non_nullable
@@ -793,8 +799,8 @@ class __$$ConstrainU32_RangeCopyWithImpl<$Res>
 
 /// @nodoc
 
-class _$ConstrainU32_Range implements ConstrainU32_Range {
-  const _$ConstrainU32_Range(this.field0, this.field1);
+class _$ConstrainU32_RangeImpl implements ConstrainU32_Range {
+  const _$ConstrainU32_RangeImpl(this.field0, this.field1);
 
   @override
   final int field0;
@@ -810,7 +816,7 @@ class _$ConstrainU32_Range implements ConstrainU32_Range {
   bool operator ==(dynamic other) {
     return identical(this, other) ||
         (other.runtimeType == runtimeType &&
-            other is _$ConstrainU32_Range &&
+            other is _$ConstrainU32_RangeImpl &&
             (identical(other.field0, field0) || other.field0 == field0) &&
             (identical(other.field1, field1) || other.field1 == field1));
   }
@@ -821,8 +827,8 @@ class _$ConstrainU32_Range implements ConstrainU32_Range {
   @JsonKey(ignore: true)
   @override
   @pragma('vm:prefer-inline')
-  _$$ConstrainU32_RangeCopyWith<_$ConstrainU32_Range> get copyWith =>
-      __$$ConstrainU32_RangeCopyWithImpl<_$ConstrainU32_Range>(
+  _$$ConstrainU32_RangeImplCopyWith<_$ConstrainU32_RangeImpl> get copyWith =>
+      __$$ConstrainU32_RangeImplCopyWithImpl<_$ConstrainU32_RangeImpl>(
           this, _$identity);
 
   @override
@@ -896,13 +902,13 @@ class _$ConstrainU32_Range implements ConstrainU32_Range {
 
 abstract class ConstrainU32_Range implements ConstrainU32 {
   const factory ConstrainU32_Range(final int field0, final int field1) =
-      _$ConstrainU32_Range;
+      _$ConstrainU32_RangeImpl;
 
   @override
   int get field0;
   int get field1;
   @override
   @JsonKey(ignore: true)
-  _$$ConstrainU32_RangeCopyWith<_$ConstrainU32_Range> get copyWith =>
+  _$$ConstrainU32_RangeImplCopyWith<_$ConstrainU32_RangeImpl> get copyWith =>
       throw _privateConstructorUsedError;
 }
diff --git a/flutter/lib/src/native/jason.dart b/flutter/lib/src/native/jason.dart
index aa9dc2bfa..dec327611 100644
--- a/flutter/lib/src/native/jason.dart
+++ b/flutter/lib/src/native/jason.dart
@@ -3,15 +3,12 @@ library jason;
 import 'dart:ffi';
 import 'dart:io';
 
-import 'package:flutter_rust_bridge/flutter_rust_bridge.dart';
-
 import '../interface/jason.dart' as base;
 import '../interface/media_manager.dart';
 import '../interface/room_handle.dart';
 import '../util/move_semantic.dart';
 import '../util/rust_opaque.dart';
 import '/src/util/rust_handles_storage.dart';
-import 'ffi/box_handle.dart';
 import 'ffi/callback.dart' as callback;
 import 'ffi/completer.dart' as completer;
 import 'ffi/exception.dart' as exceptions;
@@ -47,22 +44,6 @@ void onPanic(void Function(String)? cb) {
   _onPanicCallback = cb;
 }
 
-extension FfiExceptionParse on FfiException {
-  Object parse() {
-    if (!message.contains('RESULT_ERROR: DartError')) {
-      return this;
-    }
-    var handle = message;
-    var reg = RegExp(r'\(([^]*?)\)');
-    var errPtr =
-        Pointer<Handle>.fromAddress(int.parse(reg.firstMatch(handle)![1]!));
-    var err = unboxDartHandle(errPtr);
-    freeBoxedDartHandle(errPtr);
-
-    return err;
-  }
-}
-
 DynamicLibrary _dlLoad() {
   if (!(Platform.isAndroid ||
       Platform.isLinux ||
diff --git a/flutter/lib/src/native/media_manager.dart b/flutter/lib/src/native/media_manager.dart
index e9952844d..b8117c7f5 100644
--- a/flutter/lib/src/native/media_manager.dart
+++ b/flutter/lib/src/native/media_manager.dart
@@ -1,8 +1,6 @@
 import 'dart:ffi';
 import 'dart:io';
 
-import 'package:flutter_rust_bridge/flutter_rust_bridge.dart';
-
 import '../../medea_jason.dart';
 import '../interface/media_stream_settings.dart' as base_settings;
 import '../util/move_semantic.dart';
@@ -28,13 +26,9 @@ class NativeMediaManagerHandle implements MediaManagerHandle {
   Future<List<LocalMediaTrack>> initLocalTracks(
       base_settings.MediaStreamSettings caps) async {
     Pointer tracks;
-    try {
-      tracks = await (api.mediaManagerHandleInitLocalTracks(
-          manager: opaque.innerOpaque,
-          caps: (caps as MediaStreamSettings).setting) as Future) as Pointer;
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    tracks = await (api.mediaManagerHandleInitLocalTracks(
+        manager: opaque.innerOpaque,
+        caps: (caps as MediaStreamSettings).setting) as Future) as Pointer;
 
     return api
         .vecLocalTracksFromPtr(ptr: tracks.address)
@@ -45,13 +39,8 @@ class NativeMediaManagerHandle implements MediaManagerHandle {
   @override
   Future<List<MediaDeviceDetails>> enumerateDevices() async {
     Pointer devices;
-    try {
-      devices = await (api.mediaManagerHandleEnumerateDevices(
-          manager: opaque.innerOpaque) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
-
+    devices = await (api.mediaManagerHandleEnumerateDevices(
+        manager: opaque.innerOpaque) as Future);
     return api
         .vecMediaDeviceDetailsFromPtr(ptr: devices.address)
         .map((info) => NativeMediaDeviceDetails(info))
@@ -66,12 +55,8 @@ class NativeMediaManagerHandle implements MediaManagerHandle {
     }
 
     Pointer devices;
-    try {
-      devices = await (api.mediaManagerHandleEnumerateDisplays(
-          manager: opaque.innerOpaque) as Future) as Pointer;
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    devices = await (api.mediaManagerHandleEnumerateDisplays(
+        manager: opaque.innerOpaque) as Future) as Pointer;
 
     return api
         .vecMediaDisplayDetailsFromPtr(ptr: devices.address)
@@ -81,51 +66,31 @@ class NativeMediaManagerHandle implements MediaManagerHandle {
 
   @override
   Future<void> setOutputAudioId(String deviceId) async {
-    try {
-      await (api.mediaManagerHandleSetOutputAudioId(
-          manager: opaque.innerOpaque, deviceId: deviceId) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.mediaManagerHandleSetOutputAudioId(
+        manager: opaque.innerOpaque, deviceId: deviceId) as Future);
   }
 
   @override
   Future<void> setMicrophoneVolume(int level) async {
-    try {
-      await (api.mediaManagerHandleSetMicrophoneVolume(
-          manager: opaque.innerOpaque, level: level) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.mediaManagerHandleSetMicrophoneVolume(
+        manager: opaque.innerOpaque, level: level) as Future);
   }
 
   @override
   Future<int> microphoneVolume() async {
-    try {
-      return await (api.mediaManagerHandleMicrophoneVolume(
-          manager: opaque.innerOpaque) as Future) as int;
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    return await (api.mediaManagerHandleMicrophoneVolume(
+        manager: opaque.innerOpaque) as Future) as int;
   }
 
   @override
   Future<bool> microphoneVolumeIsAvailable() async {
-    try {
-      return await (api.mediaManagerHandleMicrophoneVolumeIsAvailable(
-          manager: opaque.innerOpaque) as Future) as bool;
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    return await (api.mediaManagerHandleMicrophoneVolumeIsAvailable(
+        manager: opaque.innerOpaque) as Future) as bool;
   }
 
   @override
   void onDeviceChange(void Function() cb) {
-    try {
-      api.mediaManagerHandleOnDeviceChange(manager: opaque.innerOpaque, cb: cb);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    api.mediaManagerHandleOnDeviceChange(manager: opaque.innerOpaque, cb: cb);
   }
 
   @moveSemantics
diff --git a/flutter/lib/src/native/reconnect_handle.dart b/flutter/lib/src/native/reconnect_handle.dart
index c8916f5f0..2c5fcc247 100644
--- a/flutter/lib/src/native/reconnect_handle.dart
+++ b/flutter/lib/src/native/reconnect_handle.dart
@@ -1,5 +1,3 @@
-import 'package:flutter_rust_bridge/flutter_rust_bridge.dart';
-
 import '../interface/reconnect_handle.dart';
 import '../util/move_semantic.dart';
 import '../util/rust_opaque.dart';
@@ -24,12 +22,8 @@ class NativeReconnectHandle implements ReconnectHandle {
       throw ArgumentError.value(delayMs, 'delayMs', 'Expected `u32`');
     }
 
-    try {
-      await (api.reconnectHandleReconnectWithDelay(
-          reconnectHandle: opaque.innerOpaque, delayMs: delayMs) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.reconnectHandleReconnectWithDelay(
+        reconnectHandle: opaque.innerOpaque, delayMs: delayMs) as Future);
   }
 
   @override
@@ -52,16 +46,12 @@ class NativeReconnectHandle implements ReconnectHandle {
       }
     }
 
-    try {
-      await (api.reconnectHandleReconnectWithBackoff(
-          reconnectHandle: opaque.innerOpaque,
-          startingDelay: startingDelayMs,
-          multiplier: multiplier,
-          maxDelay: maxDelay,
-          maxElapsedTimeMs: maxElapsedTimeMs) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.reconnectHandleReconnectWithBackoff(
+        reconnectHandle: opaque.innerOpaque,
+        startingDelay: startingDelayMs,
+        multiplier: multiplier,
+        maxDelay: maxDelay,
+        maxElapsedTimeMs: maxElapsedTimeMs) as Future);
   }
 
   @moveSemantics
diff --git a/flutter/lib/src/native/room_handle.dart b/flutter/lib/src/native/room_handle.dart
index 781214c8d..76371bfce 100644
--- a/flutter/lib/src/native/room_handle.dart
+++ b/flutter/lib/src/native/room_handle.dart
@@ -1,5 +1,3 @@
-import 'package:flutter_rust_bridge/flutter_rust_bridge.dart';
-
 import '../interface/connection_handle.dart';
 import '../interface/media_stream_settings.dart' as base_settings;
 import '../interface/media_track.dart';
@@ -30,214 +28,133 @@ class NativeRoomHandle implements RoomHandle {
 
   @override
   Future<void> join(String token) async {
-    try {
-      await (api.roomHandleJoin(roomHandle: opaque.innerOpaque, token: token)
-          as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleJoin(roomHandle: opaque.innerOpaque, token: token)
+        as Future);
   }
 
   @override
   Future<void> setLocalMediaSettings(base_settings.MediaStreamSettings settings,
       bool stopFirst, bool rollbackOnFail) async {
-    try {
-      await (api.roomHandleSetLocalMediaSettings(
-          roomHandle: opaque.innerOpaque,
-          settings: (settings as MediaStreamSettings).setting,
-          stopFirst: stopFirst,
-          rollbackOnFail: rollbackOnFail) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleSetLocalMediaSettings(
+        roomHandle: opaque.innerOpaque,
+        settings: (settings as MediaStreamSettings).setting,
+        stopFirst: stopFirst,
+        rollbackOnFail: rollbackOnFail) as Future);
   }
 
   @override
   Future<void> muteAudio() async {
-    try {
-      await (api.roomHandleMuteAudio(roomHandle: opaque.innerOpaque) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleMuteAudio(roomHandle: opaque.innerOpaque) as Future);
   }
 
   @override
   Future<void> unmuteAudio() async {
-    try {
-      await (api.roomHandleUnmuteAudio(roomHandle: opaque.innerOpaque)
-          as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleUnmuteAudio(roomHandle: opaque.innerOpaque) as Future);
   }
 
   @override
   Future<void> enableAudio() async {
-    try {
-      await (api.roomHandleEnableAudio(roomHandle: opaque.innerOpaque)
-          as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleEnableAudio(roomHandle: opaque.innerOpaque) as Future);
   }
 
   @override
   Future<void> disableAudio() async {
-    try {
-      await (api.roomHandleDisableAudio(roomHandle: opaque.innerOpaque)
-          as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleDisableAudio(roomHandle: opaque.innerOpaque)
+        as Future);
   }
 
   @override
   Future<void> muteVideo([MediaSourceKind? kind]) async {
-    try {
-      await (api.roomHandleMuteVideo(
-          roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleMuteVideo(
+        roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
   }
 
   @override
   Future<void> unmuteVideo([MediaSourceKind? kind]) async {
-    try {
-      await (api.roomHandleUnmuteVideo(
-          roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleUnmuteVideo(
+        roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
   }
 
   @override
   Future<void> enableVideo([MediaSourceKind? kind]) async {
-    try {
-      await (api.roomHandleEnableVideo(
-          roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleEnableVideo(
+        roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
   }
 
   @override
   Future<void> disableVideo([MediaSourceKind? kind]) async {
-    try {
-      await (api.roomHandleDisableVideo(
-          roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleDisableVideo(
+        roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
   }
 
   @override
   Future<void> enableRemoteAudio() async {
-    try {
-      await (api.roomHandleEnableRemoteAudio(roomHandle: opaque.innerOpaque)
-          as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleEnableRemoteAudio(roomHandle: opaque.innerOpaque)
+        as Future);
   }
 
   @override
   Future<void> disableRemoteAudio() async {
-    try {
-      await (api.roomHandleDisableRemoteAudio(roomHandle: opaque.innerOpaque)
-          as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleDisableRemoteAudio(roomHandle: opaque.innerOpaque)
+        as Future);
   }
 
   @override
   Future<void> enableRemoteVideo([MediaSourceKind? kind]) async {
-    try {
-      await (api.roomHandleEnableRemoteVideo(
-          roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleEnableRemoteVideo(
+        roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
   }
 
   @override
   Future<void> disableRemoteVideo([MediaSourceKind? kind]) async {
-    try {
-      await (api.roomHandleDisableRemoteVideo(
-          roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    await (api.roomHandleDisableRemoteVideo(
+        roomHandle: opaque.innerOpaque, sourceKind: kind) as Future);
   }
 
   @override
   void onNewConnection(void Function(ConnectionHandle) f) {
-    try {
-      api.roomHandleOnNewConnection(
-          roomHandle: opaque.innerOpaque,
-          cb: (t) {
-            f(NativeConnectionHandle(
-                api.connectionHandleFromPtr(ptr: t.address)));
-          });
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    api.roomHandleOnNewConnection(
+        roomHandle: opaque.innerOpaque,
+        cb: (t) {
+          f(NativeConnectionHandle(
+              api.connectionHandleFromPtr(ptr: t.address)));
+        });
   }
 
   @override
   void onClose(void Function(RoomCloseReason) f) {
-    try {
-      api.roomHandleOnClose(
-          roomHandle: opaque.innerOpaque,
-          cb: (t) {
-            f(NativeRoomCloseReason(
-                api.roomCloseReasonFromPtr(ptr: t.address)));
-          });
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    api.roomHandleOnClose(
+        roomHandle: opaque.innerOpaque,
+        cb: (t) {
+          f(NativeRoomCloseReason(api.roomCloseReasonFromPtr(ptr: t.address)));
+        });
   }
 
   @override
   void onLocalTrack(void Function(LocalMediaTrack) f) {
-    try {
-      api.roomHandleOnLocalTrack(
-          roomHandle: opaque.innerOpaque,
-          cb: (t) {
-            f(NativeLocalMediaTrack(
-                api.localMediaTrackFromPtr(ptr: t.address)));
-          });
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    api.roomHandleOnLocalTrack(
+        roomHandle: opaque.innerOpaque,
+        cb: (t) {
+          f(NativeLocalMediaTrack(api.localMediaTrackFromPtr(ptr: t.address)));
+        });
   }
 
   @override
   void onConnectionLoss(void Function(ReconnectHandle) f) {
-    try {
-      api.roomHandleOnConnectionLoss(
-          roomHandle: opaque.innerOpaque,
-          cb: (t) {
-            f(NativeReconnectHandle(
-                api.reconnectHandleFromPtr(ptr: t.address)));
-          });
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    api.roomHandleOnConnectionLoss(
+        roomHandle: opaque.innerOpaque,
+        cb: (t) {
+          f(NativeReconnectHandle(api.reconnectHandleFromPtr(ptr: t.address)));
+        });
   }
 
   @override
   void onFailedLocalMedia(void Function(Object) f) {
-    try {
-      api.roomHandleOnFailedLocalMedia(
-          roomHandle: opaque.innerOpaque,
-          cb: (err) {
-            f(err);
-          });
-    } on FfiException catch (anyhow) {
-      throw anyhow.parse();
-    }
+    api.roomHandleOnFailedLocalMedia(
+        roomHandle: opaque.innerOpaque,
+        cb: (err) {
+          f(err);
+        });
   }
 
   @moveSemantics
diff --git a/flutter/pubspec.yaml b/flutter/pubspec.yaml
index 39cb02479..f6f65b671 100644
--- a/flutter/pubspec.yaml
+++ b/flutter/pubspec.yaml
@@ -16,7 +16,7 @@ dependencies:
   http: ^0.13.5
   js: ^0.6.5
   json_annotation: ^4.7.0
-  medea_flutter_webrtc: 0.8.3-dev+rev.d5a07ce262833b307e4b0e5d39badd55eadf812a
+  medea_flutter_webrtc: 0.8.3-dev+rev.0fe64b4610154ddb7e8774a952b6ecf6369b7633
   meta: ^1.8.0
   retry: ^3.1.0
   tuple: ^2.0.1
diff --git a/src/api/dart/api.rs b/src/api/dart/api.rs
index 609a84f0c..393ecd683 100644
--- a/src/api/dart/api.rs
+++ b/src/api/dart/api.rs
@@ -311,14 +311,12 @@ pub fn connection_handle_from_ptr(
 pub fn connection_handle_on_close(
     connection: RustOpaque<ConnectionHandle>,
     f: DartOpaque,
-) -> anyhow::Result<SyncReturn<()>> {
+) -> Result<SyncReturn<()>, DartOpaque> {
     let f = unsafe {
         platform::Function::new(f.try_unwrap().unwrap().into_raw().cast())
     };
 
-    connection
-        .on_close(f)
-        .map_err(|err| anyhow::anyhow!("{:?}", DartError::from(err)))?;
+    connection.on_close(f).map_err(DartError::from)?;
 
     Ok(SyncReturn(()))
 }
@@ -334,14 +332,14 @@ pub fn connection_handle_on_close(
 pub fn connection_handle_on_remote_track_added(
     connection: RustOpaque<ConnectionHandle>,
     f: DartOpaque,
-) -> anyhow::Result<SyncReturn<()>> {
+) -> Result<SyncReturn<()>, DartOpaque> {
     let f = unsafe {
         platform::Function::new(f.try_unwrap().unwrap().into_raw().cast())
     };
 
     connection
         .on_remote_track_added(f)
-        .map_err(|err| anyhow::anyhow!("{:?}", DartError::from(err)))?;
+        .map_err(DartError::from)?;
 
     Ok(SyncReturn(()))
 }
@@ -355,14 +353,14 @@ pub fn connection_handle_on_remote_track_added(
 pub fn connection_handle_on_quality_score_update(
     connection: RustOpaque<ConnectionHandle>,
     f: DartOpaque,
-) -> anyhow::Result<SyncReturn<()>> {
+) -> Result<SyncReturn<()>, DartOpaque> {
     let f = unsafe {
         platform::Function::new(f.try_unwrap().unwrap().into_raw().cast())
     };
 
     connection
         .on_quality_score_update(f)
-        .map_err(|err| anyhow::anyhow!("{:?}", DartError::from(err)))?;
+        .map_err(DartError::from)?;
 
     Ok(SyncReturn(()))
 }
@@ -374,10 +372,10 @@ pub fn connection_handle_on_quality_score_update(
 /// If [`ConnectionHandle::get_remote_member_id()`] errors.
 pub fn connection_handle_get_remote_member_id(
     connection: RustOpaque<ConnectionHandle>,
-) -> anyhow::Result<SyncReturn<String>> {
-    Ok(SyncReturn(connection.get_remote_member_id().map_err(
-        |err| anyhow::anyhow!("{:?}", DartError::from(err)),
-    )?))
+) -> Result<SyncReturn<String>, DartOpaque> {
+    Ok(SyncReturn(
+        connection.get_remote_member_id().map_err(DartError::from)?,
+    ))
 }
 
 /// Enables inbound audio in the provided `connection`.
@@ -800,13 +798,13 @@ pub fn media_manager_handle_microphone_volume(
 pub fn media_manager_handle_on_device_change(
     manager: RustOpaque<MediaManagerHandle>,
     cb: DartOpaque,
-) -> anyhow::Result<SyncReturn<()>> {
+) -> Result<SyncReturn<()>, DartOpaque> {
     let manager = MediaManagerHandle::clone(&manager);
     manager
         .on_device_change(unsafe {
             platform::Function::new(cb.try_unwrap().unwrap().into_raw().cast())
         })
-        .map_err(|err| anyhow::anyhow!("{:?}", DartError::from(err)))?;
+        .map_err(DartError::from)?;
 
     Ok(SyncReturn(()))
 }
@@ -1197,13 +1195,14 @@ pub fn room_handle_disable_audio(
 /// If `source_kind` is not a [`MediaSourceKind`] index.
 ///
 /// [`Room`]: room::Room
+#[must_use]
 pub fn room_handle_mute_video(
     room_handle: RustOpaque<RoomHandle>,
     source_kind: Option<MediaSourceKind>,
-) -> anyhow::Result<SyncReturn<DartOpaque>> {
+) -> SyncReturn<DartOpaque> {
     let room_handle = RoomHandle::clone(&room_handle);
 
-    Ok(SyncReturn(
+    SyncReturn(
         async move {
             room_handle.mute_video(source_kind).await?;
 
@@ -1211,7 +1210,7 @@ pub fn room_handle_mute_video(
         }
         .into_dart_future()
         .into_dart_opaque(),
-    ))
+    )
 }
 
 /// Unmutes outbound video in the provided [`Room`].
@@ -1223,13 +1222,14 @@ pub fn room_handle_mute_video(
 /// If `source_kind` is not a [`MediaSourceKind`] index.
 ///
 /// [`Room`]: room::Room
+#[must_use]
 pub fn room_handle_unmute_video(
     room_handle: RustOpaque<RoomHandle>,
     source_kind: Option<MediaSourceKind>,
-) -> anyhow::Result<SyncReturn<DartOpaque>> {
+) -> SyncReturn<DartOpaque> {
     let room_handle = RoomHandle::clone(&room_handle);
 
-    Ok(SyncReturn(
+    SyncReturn(
         async move {
             room_handle.unmute_video(source_kind).await?;
 
@@ -1237,7 +1237,7 @@ pub fn room_handle_unmute_video(
         }
         .into_dart_future()
         .into_dart_opaque(),
-    ))
+    )
 }
 
 /// Enables outbound video in the provided [`Room`].
@@ -1249,13 +1249,14 @@ pub fn room_handle_unmute_video(
 /// If `source_kind` is not [`MediaSourceKind`] index.
 ///
 /// [`Room`]: room::Room
+#[must_use]
 pub fn room_handle_enable_video(
     room_handle: RustOpaque<RoomHandle>,
     source_kind: Option<MediaSourceKind>,
-) -> anyhow::Result<SyncReturn<DartOpaque>> {
+) -> SyncReturn<DartOpaque> {
     let room_handle = RoomHandle::clone(&room_handle);
 
-    Ok(SyncReturn(
+    SyncReturn(
         async move {
             room_handle.enable_video(source_kind).await?;
 
@@ -1263,7 +1264,7 @@ pub fn room_handle_enable_video(
         }
         .into_dart_future()
         .into_dart_opaque(),
-    ))
+    )
 }
 
 /// Disables outbound video in the provided [`Room`].
@@ -1275,13 +1276,14 @@ pub fn room_handle_enable_video(
 /// If `source_kind` is not [`MediaSourceKind`] index.
 ///
 /// [`Room`]: room::Room
+#[must_use]
 pub fn room_handle_disable_video(
     room_handle: RustOpaque<RoomHandle>,
     source_kind: Option<MediaSourceKind>,
-) -> anyhow::Result<SyncReturn<DartOpaque>> {
+) -> SyncReturn<DartOpaque> {
     let room_handle = RoomHandle::clone(&room_handle);
 
-    Ok(SyncReturn(
+    SyncReturn(
         async move {
             room_handle.disable_video(source_kind).await?;
 
@@ -1289,7 +1291,7 @@ pub fn room_handle_disable_video(
         }
         .into_dart_future()
         .into_dart_opaque(),
-    ))
+    )
 }
 
 /// Enables inbound audio in the provided [`Room`].
@@ -1341,13 +1343,14 @@ pub fn room_handle_disable_remote_audio(
 /// If `source_kind` is not [`MediaSourceKind`] index.
 ///
 /// [`Room`]: room::Room
+#[must_use]
 pub fn room_handle_enable_remote_video(
     room_handle: RustOpaque<RoomHandle>,
     source_kind: Option<MediaSourceKind>,
-) -> anyhow::Result<SyncReturn<DartOpaque>> {
+) -> SyncReturn<DartOpaque> {
     let room_handle = RoomHandle::clone(&room_handle);
 
-    Ok(SyncReturn(
+    SyncReturn(
         async move {
             room_handle.enable_remote_video(source_kind).await?;
 
@@ -1355,7 +1358,7 @@ pub fn room_handle_enable_remote_video(
         }
         .into_dart_future()
         .into_dart_opaque(),
-    ))
+    )
 }
 
 /// Disables inbound video in the provided [`Room`].
@@ -1367,13 +1370,14 @@ pub fn room_handle_enable_remote_video(
 /// If `source_kind` is not [`MediaSourceKind`] index.
 ///
 /// [`Room`]: room::Room
+#[must_use]
 pub fn room_handle_disable_remote_video(
     room_handle: RustOpaque<RoomHandle>,
     source_kind: Option<MediaSourceKind>,
-) -> anyhow::Result<SyncReturn<DartOpaque>> {
+) -> SyncReturn<DartOpaque> {
     let room_handle = RoomHandle::clone(&room_handle);
 
-    Ok(SyncReturn(
+    SyncReturn(
         async move {
             room_handle.disable_remote_video(source_kind).await?;
 
@@ -1381,7 +1385,7 @@ pub fn room_handle_disable_remote_video(
         }
         .into_dart_future()
         .into_dart_opaque(),
-    ))
+    )
 }
 
 /// Sets a callback to be invoked once a new [`Connection`] with some remote
@@ -1395,7 +1399,7 @@ pub fn room_handle_disable_remote_video(
 pub fn room_handle_on_new_connection(
     room_handle: RustOpaque<RoomHandle>,
     cb: DartOpaque,
-) -> anyhow::Result<SyncReturn<()>> {
+) -> Result<SyncReturn<()>, DartOpaque> {
     Ok(SyncReturn(
         room_handle
             .on_new_connection(unsafe {
@@ -1403,7 +1407,7 @@ pub fn room_handle_on_new_connection(
                     cb.try_unwrap().unwrap().into_raw().cast(),
                 )
             })
-            .map_err(|err| anyhow::anyhow!("{:?}", DartError::from(err)))?,
+            .map_err(DartError::from)?,
     ))
 }
 
@@ -1418,12 +1422,12 @@ pub fn room_handle_on_new_connection(
 pub fn room_handle_on_close(
     room_handle: RustOpaque<RoomHandle>,
     cb: DartOpaque,
-) -> anyhow::Result<SyncReturn<()>> {
+) -> Result<SyncReturn<()>, DartOpaque> {
     room_handle
         .on_close(unsafe {
             platform::Function::new(cb.try_unwrap().unwrap().into_raw().cast())
         })
-        .map_err(|err| anyhow::anyhow!("{:?}", DartError::from(err)))?;
+        .map_err(DartError::from)?;
 
     Ok(SyncReturn(()))
 }
@@ -1445,12 +1449,12 @@ pub fn room_handle_on_close(
 pub fn room_handle_on_local_track(
     room_handle: RustOpaque<RoomHandle>,
     cb: DartOpaque,
-) -> anyhow::Result<SyncReturn<()>> {
+) -> Result<SyncReturn<()>, DartOpaque> {
     room_handle
         .on_local_track(unsafe {
             platform::Function::new(cb.try_unwrap().unwrap().into_raw().cast())
         })
-        .map_err(|err| anyhow::anyhow!("{:?}", DartError::from(err)))?;
+        .map_err(DartError::from)?;
 
     Ok(SyncReturn(()))
 }
@@ -1463,12 +1467,12 @@ pub fn room_handle_on_local_track(
 pub fn room_handle_on_connection_loss(
     room_handle: RustOpaque<RoomHandle>,
     cb: DartOpaque,
-) -> anyhow::Result<SyncReturn<()>> {
+) -> Result<SyncReturn<()>, DartOpaque> {
     room_handle
         .on_connection_loss(unsafe {
             platform::Function::new(cb.try_unwrap().unwrap().into_raw().cast())
         })
-        .map_err(|err| anyhow::anyhow!("{:?}", DartError::from(err)))?;
+        .map_err(DartError::from)?;
 
     Ok(SyncReturn(()))
 }
@@ -1481,12 +1485,12 @@ pub fn room_handle_on_connection_loss(
 pub fn room_handle_on_failed_local_media(
     room_handle: RustOpaque<RoomHandle>,
     cb: DartOpaque,
-) -> anyhow::Result<SyncReturn<()>> {
+) -> Result<SyncReturn<()>, DartOpaque> {
     room_handle
         .on_failed_local_media(unsafe {
             platform::Function::new(cb.try_unwrap().unwrap().into_raw().cast())
         })
-        .map_err(|err| anyhow::anyhow!("{:?}", DartError::from(err)))?;
+        .map_err(DartError::from)?;
 
     Ok(SyncReturn(()))
 }
diff --git a/src/api/dart/api_bridge_generated.rs b/src/api/dart/api_bridge_generated.rs
index 6710d0e70..6e12da7d0 100644
--- a/src/api/dart/api_bridge_generated.rs
+++ b/src/api/dart/api_bridge_generated.rs
@@ -925,7 +925,10 @@ fn wire_room_handle_mute_video_impl(
         move || {
             let api_room_handle = room_handle.wire2api();
             let api_source_kind = source_kind.wire2api();
-            room_handle_mute_video(api_room_handle, api_source_kind)
+            Result::<_, ()>::Ok(room_handle_mute_video(
+                api_room_handle,
+                api_source_kind,
+            ))
         },
     )
 }
@@ -942,7 +945,10 @@ fn wire_room_handle_unmute_video_impl(
         move || {
             let api_room_handle = room_handle.wire2api();
             let api_source_kind = source_kind.wire2api();
-            room_handle_unmute_video(api_room_handle, api_source_kind)
+            Result::<_, ()>::Ok(room_handle_unmute_video(
+                api_room_handle,
+                api_source_kind,
+            ))
         },
     )
 }
@@ -959,7 +965,10 @@ fn wire_room_handle_enable_video_impl(
         move || {
             let api_room_handle = room_handle.wire2api();
             let api_source_kind = source_kind.wire2api();
-            room_handle_enable_video(api_room_handle, api_source_kind)
+            Result::<_, ()>::Ok(room_handle_enable_video(
+                api_room_handle,
+                api_source_kind,
+            ))
         },
     )
 }
@@ -976,7 +985,10 @@ fn wire_room_handle_disable_video_impl(
         move || {
             let api_room_handle = room_handle.wire2api();
             let api_source_kind = source_kind.wire2api();
-            room_handle_disable_video(api_room_handle, api_source_kind)
+            Result::<_, ()>::Ok(room_handle_disable_video(
+                api_room_handle,
+                api_source_kind,
+            ))
         },
     )
 }
@@ -1027,7 +1039,10 @@ fn wire_room_handle_enable_remote_video_impl(
         move || {
             let api_room_handle = room_handle.wire2api();
             let api_source_kind = source_kind.wire2api();
-            room_handle_enable_remote_video(api_room_handle, api_source_kind)
+            Result::<_, ()>::Ok(room_handle_enable_remote_video(
+                api_room_handle,
+                api_source_kind,
+            ))
         },
     )
 }
@@ -1044,7 +1059,10 @@ fn wire_room_handle_disable_remote_video_impl(
         move || {
             let api_room_handle = room_handle.wire2api();
             let api_source_kind = source_kind.wire2api();
-            room_handle_disable_remote_video(api_room_handle, api_source_kind)
+            Result::<_, ()>::Ok(room_handle_disable_remote_video(
+                api_room_handle,
+                api_source_kind,
+            ))
         },
     )
 }
diff --git a/src/api/dart/utils/err.rs b/src/api/dart/utils/err.rs
index 6ab42b582..f322c7948 100644
--- a/src/api/dart/utils/err.rs
+++ b/src/api/dart/utils/err.rs
@@ -4,6 +4,7 @@ use std::ptr;
 
 use dart_sys::Dart_Handle;
 use derive_more::Into;
+use flutter_rust_bridge::DartOpaque;
 use medea_macro::dart_bridge;
 
 use crate::{
@@ -137,6 +138,12 @@ impl DartError {
     }
 }
 
+impl From<DartError> for DartOpaque {
+    fn from(val: DartError) -> Self {
+        unsafe { Self::new_non_droppable(*Box::from_raw(val.0.as_ptr())) }
+    }
+}
+
 impl From<platform::Error> for DartError {
     fn from(err: platform::Error) -> Self {
         Self::new(err.get_handle())