diff --git a/lib/controllers/author.dart b/lib/controllers/author.dart
index f9c9167..0b783f0 100644
--- a/lib/controllers/author.dart
+++ b/lib/controllers/author.dart
@@ -2,27 +2,30 @@ import "dart:async";
 
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:nexus/controllers/user.dart";
+import "package:nexus/models/configs/author.dart";
 import "package:nexus/models/content/membership.dart";
-import "package:nexus/models/event.dart";
 
-class AuthorController(final Event event)
+class AuthorController(final AuthorConfig config)
     extends AsyncNotifier<MembershipContent> {
   @override
   Future<MembershipContent> build() async {
     final member = await ref.watch(
-      UserController.provider(.new(roomId: event.roomId, userId: event.sender))
-          .future,
+      UserController.provider(
+        .new(roomId: config.roomId, userId: config.userId),
+      ).future,
     );
 
     return .new(
       status: member.status,
-      avatarUrl: event.pmp?.avatarUrl ?? member.avatarUrl,
-      displayName: event.pmp?.displayName ?? member.displayName,
+      avatarUrl: config.avatarUrl ?? member.avatarUrl,
+      displayName: config.displayName ?? member.displayName,
     );
   }
 
   static final provider =
-      AsyncNotifierProvider.family<AuthorController, MembershipContent, Event>(
-        AuthorController.new,
-      );
+      AsyncNotifierProvider.family<
+        AuthorController,
+        MembershipContent,
+        AuthorConfig
+      >(AuthorController.new);
 }
diff --git a/lib/models/configs/author.dart b/lib/models/configs/author.dart
new file mode 100644
index 0000000..a3a15e9
--- /dev/null
+++ b/lib/models/configs/author.dart
@@ -0,0 +1,19 @@
+import "package:freezed_annotation/freezed_annotation.dart";
+import "package:nexus/models/event.dart";
+
+part "author.freezed.dart";
+
+@freezed
+class const AuthorConfig({
+  required final String roomId,
+  required final String userId,
+  final Uri? avatarUrl,
+  final String? displayName,
+}) with _$AuthorConfig {
+  factory AuthorConfig.fromEvent(Event event) => .new(
+    roomId: event.roomId,
+    userId: event.sender,
+    avatarUrl: event.pmp?.avatarUrl,
+    displayName: event.pmp?.displayName,
+  );
+}
diff --git a/lib/widgets/lazy_loading/message_avatar.dart b/lib/widgets/lazy_loading/message_avatar.dart
index 95f987f..80a1101 100644
--- a/lib/widgets/lazy_loading/message_avatar.dart
+++ b/lib/widgets/lazy_loading/message_avatar.dart
@@ -13,7 +13,7 @@ class const MessageAvatar(
 }) extends ConsumerWidget {
   @override
   Widget build(BuildContext context, WidgetRef ref) =>
-      switch (ref.watch(AuthorController.provider(event))) {
+      switch (ref.watch(AuthorController.provider(.fromEvent(event)))) {
         AsyncData(:final value) || AsyncLoading(:final value?) => InkWell(
           onTap: () =>
               context.showUserPopover(event.sender, roomId: event.roomId),
diff --git a/lib/widgets/lazy_loading/message_displayname.dart b/lib/widgets/lazy_loading/message_displayname.dart
index d7c91bd..0f68ac5 100644
--- a/lib/widgets/lazy_loading/message_displayname.dart
+++ b/lib/widgets/lazy_loading/message_displayname.dart
@@ -18,7 +18,7 @@ class const MessageDisplayname(
   Widget build(BuildContext context, WidgetRef ref) {
     final color = ref.displaynameColor(event.roomId, event.sender);
 
-    return switch (ref.watch(AuthorController.provider(event))) {
+    return switch (ref.watch(AuthorController.provider(.fromEvent(event)))) {
       AsyncData(:final MembershipContent? value) ||
       AsyncLoading(:final value) ||
       AsyncError(:final value) => InkWell(
diff --git a/lib/widgets/users/user_span.dart b/lib/widgets/users/user_span.dart
index 60cab86..d8a305c 100644
--- a/lib/widgets/users/user_span.dart
+++ b/lib/widgets/users/user_span.dart
@@ -47,7 +47,7 @@ class UserSpan(
 
     return UserSpan(
       context,
-      ref.watch(AuthorController.provider(event)).value?.displayName ??
+      ref.watch(AuthorController.provider(.fromEvent(event))).value?.displayName ??
           event.sender.localpart,
       userId: event.sender,
       roomId: event.roomId,