diff --git a/extensions/audit/extend.php b/extensions/audit/extend.php
index fd726dbeb0..f7d1455551 100644
--- a/extensions/audit/extend.php
+++ b/extensions/audit/extend.php
@@ -33,170 +33,165 @@
 Search\AuditGambits::register('ip', 'ip:', 'flarum-audit.lib.browser.filters.ip');
 Search\AuditGambits::register('discussion', 'discussion:', 'flarum-audit.lib.browser.filters.discussion');
 
-return array_merge(
-    [
-        (new Extend\Frontend('forum'))
-            ->js(__DIR__.'/js/dist/forum.js')
-            ->jsDirectory(__DIR__.'/js/dist/forum')
-            ->css(__DIR__.'/less/forum.less'),
-
-        (new Extend\Frontend('common'))
-            ->jsDirectory(__DIR__.'/js/dist/common'),
-
-        (new Extend\Frontend('admin'))
-            ->js(__DIR__.'/js/dist/admin.js')
-            ->jsDirectory(__DIR__.'/js/dist/admin')
-            ->css(__DIR__.'/less/admin.less')
-            ->content(Content\AdminPayload::class),
-
-        new Extend\Locales(__DIR__.'/locale'),
-
-        (new Extend\Middleware('forum'))
-            ->add(Middleware\SetLoggerActor::class),
-        (new Extend\Middleware('admin'))
-            ->add(Middleware\SetLoggerActor::class),
-        (new Extend\Middleware('api'))
-            ->add(Middleware\SetLoggerActor::class)
-            ->add(Middleware\ExtendSetPermissionController::class)
-            ->add(Middleware\LogPasswordResetAttempt::class),
-
-        // Core integrations.
-
-        (new Audit())
-            ->group(null)
-            ->register('cache_cleared')
-            ->listen(ClearingCache::class, 'cache_cleared', function () {
-                return [];
-            }),
-
-        (new Audit())
-            ->group(null)
-            ->register('extension.disabled', 'extension.enabled', 'extension.uninstalled')
-            ->listen(ExtensionEvent\Disabled::class, 'extension.disabled', function ($e) {
-                return ['package' => $e->extension->name];
-            })
-            ->listen(ExtensionEvent\Enabled::class, 'extension.enabled', function ($e) {
-                return ['package' => $e->extension->name];
-            })
-            ->listen(ExtensionEvent\Uninstalled::class, 'extension.uninstalled', function ($e) {
-                return ['package' => $e->extension->name];
-            }),
-
-        (new Audit())
-            ->group(null)
-            ->register('discussion.created', 'discussion.deleted', 'discussion.hidden', 'discussion.renamed', 'discussion.restored')
-            ->listen(DiscussionEvent\Started::class, 'discussion.created', function ($e) {
-                return ['discussion_id' => $e->discussion->id];
-            })
-            ->listen(DiscussionEvent\Deleted::class, 'discussion.deleted', function ($e) {
-                return ['discussion_id' => $e->discussion->id];
-            })
-            ->listen(DiscussionEvent\Hidden::class, 'discussion.hidden', function ($e) {
-                return ['discussion_id' => $e->discussion->id];
-            })
-            ->listen(DiscussionEvent\Restored::class, 'discussion.restored', function ($e) {
-                return ['discussion_id' => $e->discussion->id];
-            })
-            ->listen(DiscussionEvent\Renamed::class, 'discussion.renamed', function ($e) {
-                return [
-                    'discussion_id' => $e->discussion->id,
-                    'old_title' => $e->oldTitle,
-                    'new_title' => $e->discussion->title,
-                ];
-            }),
-
-        (new Audit())
-            ->group(null)
-            ->register('post.created', 'post.deleted', 'post.hidden', 'post.restored', 'post.revised')
-            ->listen(PostEvent\Deleted::class, 'post.deleted', function ($e) {
-                return ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
-            })
-            ->listen(PostEvent\Hidden::class, 'post.hidden', function ($e) {
-                return ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
-            })
-            ->listen(PostEvent\Restored::class, 'post.restored', function ($e) {
-                return ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
-            })
-            ->listen(PostEvent\Revised::class, 'post.revised', function ($e) {
-                return ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
-            })
-            // Not logging the first post. There's always going to be one created alongside the discussion.
-            ->listen(PostEvent\Posted::class, 'post.created', function ($e) {
-                return $e->post->number === 1 ? null : ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
-            }),
-
-        (new Audit())
-            ->group(null)
-            // permission_changed and password_reset_attempted are logged from middleware;
-            // setting_changed and the user.* actions come from the integrations below.
-            ->register('permission_changed', 'setting_changed', 'user.password_reset_attempted')
-            ->using(new Integration\CoreSettingIntegration())
-            ->using(new Integration\CoreUserIntegration()),
-
-        (new Audit())
-            ->group(null)
-            ->register('group.created', 'group.renamed', 'group.deleted')
-            // Group CRUD is request-scoped, so the acting admin is the ambient logger actor
-            // (the events themselves carry no actor — same as the discussion/post listeners above).
-            ->listen(GroupEvent\Created::class, 'group.created', function ($e) {
-                return ['group_id' => $e->group->id, 'name' => $e->group->name_singular];
-            })
-            ->listen(GroupEvent\Renamed::class, 'group.renamed', function ($e) {
-                return [
-                    'group_id' => $e->group->id,
-                    'old_name' => $e->oldNameSingular,
-                    'new_name' => $e->group->name_singular,
-                ];
-            })
-            ->listen(GroupEvent\Deleted::class, 'group.deleted', function ($e) {
-                return ['group_id' => $e->group->id, 'name' => $e->group->name_singular];
-            }),
-
-        (new Audit())
-            ->group(null)
-            ->register('developer_token_created')
-            // Logs the issuance of a long-lived developer API token. The raw token value is
-            // deliberately never logged — only the owner and the human-readable title.
-            ->listen(DeveloperTokenCreated::class, 'developer_token_created', function ($e) {
-                return ['user_id' => $e->token->user_id, 'title' => $e->token->title];
-            }),
-
-        (new Audit())
-            ->group(null)
-            ->register('settings_reset')
-            ->listen(SettingsEvent\Reset::class, 'settings_reset', function ($e) {
-                return ['extension' => $e->extensionId, 'keys' => $e->keys];
-            }),
-
-        // Search.
-
-        (new Extend\SearchDriver(DatabaseSearchDriver::class))
-            ->addSearcher(AuditLog::class, AuditSearcher::class)
-            ->setFulltext(AuditSearcher::class, Search\FulltextFilter::class)
-            ->addFilter(AuditSearcher::class, Search\Filter\ActionFilter::class)
-            ->addFilter(AuditSearcher::class, Search\Filter\ActorFilter::class)
-            ->addFilter(AuditSearcher::class, Search\Filter\ClientFilter::class)
-            ->addFilter(AuditSearcher::class, Search\Filter\DiscussionFilter::class)
-            ->addFilter(AuditSearcher::class, Search\Filter\IpFilter::class)
-            ->addFilter(AuditSearcher::class, Search\Filter\UserFilter::class),
-
-        (new Extend\Console())
-            ->command(Console\ClearLogsCommand::class),
-
-        new Extend\ApiResource(Api\Resource\AuditLogResource::class),
-
-        (new Extend\ApiResource(ForumResource::class))
-            ->fields(ForumAttributes::class),
-
-        (new Extend\ServiceProvider())
-            ->register(LoggerServiceProvider::class),
-
-        (new Extend\ModelVisibility(AuditLog::class))
-            ->scope(Scope\View::class),
-
-        new LogSelfEnabled(),
-    ],
-    // Audit integrations for third-party extensions live in a separate file because they
-    // reference classes from extensions outside the Flarum monorepo. See the file header.
-    require __DIR__.'/extend.thirdparty.php'
-);
+return [
+    (new Extend\Frontend('forum'))
+        ->js(__DIR__.'/js/dist/forum.js')
+        ->jsDirectory(__DIR__.'/js/dist/forum')
+        ->css(__DIR__.'/less/forum.less'),
+
+    (new Extend\Frontend('common'))
+        ->jsDirectory(__DIR__.'/js/dist/common'),
+
+    (new Extend\Frontend('admin'))
+        ->js(__DIR__.'/js/dist/admin.js')
+        ->jsDirectory(__DIR__.'/js/dist/admin')
+        ->css(__DIR__.'/less/admin.less')
+        ->content(Content\AdminPayload::class),
+
+    new Extend\Locales(__DIR__.'/locale'),
+
+    (new Extend\Middleware('forum'))
+        ->add(Middleware\SetLoggerActor::class),
+    (new Extend\Middleware('admin'))
+        ->add(Middleware\SetLoggerActor::class),
+    (new Extend\Middleware('api'))
+        ->add(Middleware\SetLoggerActor::class)
+        ->add(Middleware\ExtendSetPermissionController::class)
+        ->add(Middleware\LogPasswordResetAttempt::class),
+
+    // Core integrations.
+
+    (new Audit())
+        ->group(null)
+        ->register('cache_cleared')
+        ->listen(ClearingCache::class, 'cache_cleared', function () {
+            return [];
+        }),
+
+    (new Audit())
+        ->group(null)
+        ->register('extension.disabled', 'extension.enabled', 'extension.uninstalled')
+        ->listen(ExtensionEvent\Disabled::class, 'extension.disabled', function ($e) {
+            return ['package' => $e->extension->name];
+        })
+        ->listen(ExtensionEvent\Enabled::class, 'extension.enabled', function ($e) {
+            return ['package' => $e->extension->name];
+        })
+        ->listen(ExtensionEvent\Uninstalled::class, 'extension.uninstalled', function ($e) {
+            return ['package' => $e->extension->name];
+        }),
+
+    (new Audit())
+        ->group(null)
+        ->register('discussion.created', 'discussion.deleted', 'discussion.hidden', 'discussion.renamed', 'discussion.restored')
+        ->listen(DiscussionEvent\Started::class, 'discussion.created', function ($e) {
+            return ['discussion_id' => $e->discussion->id];
+        })
+        ->listen(DiscussionEvent\Deleted::class, 'discussion.deleted', function ($e) {
+            return ['discussion_id' => $e->discussion->id];
+        })
+        ->listen(DiscussionEvent\Hidden::class, 'discussion.hidden', function ($e) {
+            return ['discussion_id' => $e->discussion->id];
+        })
+        ->listen(DiscussionEvent\Restored::class, 'discussion.restored', function ($e) {
+            return ['discussion_id' => $e->discussion->id];
+        })
+        ->listen(DiscussionEvent\Renamed::class, 'discussion.renamed', function ($e) {
+            return [
+                'discussion_id' => $e->discussion->id,
+                'old_title' => $e->oldTitle,
+                'new_title' => $e->discussion->title,
+            ];
+        }),
+
+    (new Audit())
+        ->group(null)
+        ->register('post.created', 'post.deleted', 'post.hidden', 'post.restored', 'post.revised')
+        ->listen(PostEvent\Deleted::class, 'post.deleted', function ($e) {
+            return ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
+        })
+        ->listen(PostEvent\Hidden::class, 'post.hidden', function ($e) {
+            return ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
+        })
+        ->listen(PostEvent\Restored::class, 'post.restored', function ($e) {
+            return ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
+        })
+        ->listen(PostEvent\Revised::class, 'post.revised', function ($e) {
+            return ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
+        })
+        // Not logging the first post. There's always going to be one created alongside the discussion.
+        ->listen(PostEvent\Posted::class, 'post.created', function ($e) {
+            return $e->post->number === 1 ? null : ['discussion_id' => $e->post->discussion->id, 'post_id' => $e->post->id];
+        }),
+
+    (new Audit())
+        ->group(null)
+        // permission_changed and password_reset_attempted are logged from middleware;
+        // setting_changed and the user.* actions come from the integrations below.
+        ->register('permission_changed', 'setting_changed', 'user.password_reset_attempted')
+        ->using(new Integration\CoreSettingIntegration())
+        ->using(new Integration\CoreUserIntegration()),
+
+    (new Audit())
+        ->group(null)
+        ->register('group.created', 'group.renamed', 'group.deleted')
+        // Group CRUD is request-scoped, so the acting admin is the ambient logger actor
+        // (the events themselves carry no actor — same as the discussion/post listeners above).
+        ->listen(GroupEvent\Created::class, 'group.created', function ($e) {
+            return ['group_id' => $e->group->id, 'name' => $e->group->name_singular];
+        })
+        ->listen(GroupEvent\Renamed::class, 'group.renamed', function ($e) {
+            return [
+                'group_id' => $e->group->id,
+                'old_name' => $e->oldNameSingular,
+                'new_name' => $e->group->name_singular,
+            ];
+        })
+        ->listen(GroupEvent\Deleted::class, 'group.deleted', function ($e) {
+            return ['group_id' => $e->group->id, 'name' => $e->group->name_singular];
+        }),
+
+    (new Audit())
+        ->group(null)
+        ->register('developer_token_created')
+        // Logs the issuance of a long-lived developer API token. The raw token value is
+        // deliberately never logged — only the owner and the human-readable title.
+        ->listen(DeveloperTokenCreated::class, 'developer_token_created', function ($e) {
+            return ['user_id' => $e->token->user_id, 'title' => $e->token->title];
+        }),
+
+    (new Audit())
+        ->group(null)
+        ->register('settings_reset')
+        ->listen(SettingsEvent\Reset::class, 'settings_reset', function ($e) {
+            return ['extension' => $e->extensionId, 'keys' => $e->keys];
+        }),
+
+    // Search.
+
+    (new Extend\SearchDriver(DatabaseSearchDriver::class))
+        ->addSearcher(AuditLog::class, AuditSearcher::class)
+        ->setFulltext(AuditSearcher::class, Search\FulltextFilter::class)
+        ->addFilter(AuditSearcher::class, Search\Filter\ActionFilter::class)
+        ->addFilter(AuditSearcher::class, Search\Filter\ActorFilter::class)
+        ->addFilter(AuditSearcher::class, Search\Filter\ClientFilter::class)
+        ->addFilter(AuditSearcher::class, Search\Filter\DiscussionFilter::class)
+        ->addFilter(AuditSearcher::class, Search\Filter\IpFilter::class)
+        ->addFilter(AuditSearcher::class, Search\Filter\UserFilter::class),
+
+    (new Extend\Console())
+        ->command(Console\ClearLogsCommand::class),
+
+    new Extend\ApiResource(Api\Resource\AuditLogResource::class),
+
+    (new Extend\ApiResource(ForumResource::class))
+        ->fields(ForumAttributes::class),
+
+    (new Extend\ServiceProvider())
+        ->register(LoggerServiceProvider::class),
+
+    (new Extend\ModelVisibility(AuditLog::class))
+        ->scope(Scope\View::class),
+
+    new LogSelfEnabled(),
+];
diff --git a/extensions/audit/extend.thirdparty.php b/extensions/audit/extend.thirdparty.php
deleted file mode 100644
index 1d09e33e7f..0000000000
--- a/extensions/audit/extend.thirdparty.php
+++ /dev/null
@@ -1,130 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * For detailed copyright and license information, please view the
- * LICENSE file that was distributed with this source code.
- */
-
-namespace Flarum\Audit;
-
-use Flarum\Audit\Extend\Audit;
-use Flarum\Extend\Conditional;
-use FoF\BanIPs\Events as BanIPsEvents;
-use FoF\Impersonate\Events\Impersonated;
-use FoF\MergeDiscussions\Events\DiscussionWasMerged;
-use FoF\Split\Events\DiscussionWasSplit;
-use FoF\UserBio\Event\BioChanged;
-
-/*
- * Audit integrations for third-party extensions.
- *
- * These are kept in flarum/audit for now so the migrated extension preserves its existing
- * coverage. Because they reference classes from extensions that aren't part of the Flarum
- * monorepo, this file is intentionally excluded from the monorepo's PHPStan analysis.
- *
- * Going forward, each third-party extension should declare its own integration in its own
- * extend.php using the public Flarum\Audit\Extend\Audit extender, gated behind
- * (new Flarum\Extend\Conditional())->whenExtensionEnabled('flarum-audit', ...). Once an
- * extension adopts the public API, its block here can be removed.
- */
-return [
-    (new Conditional())
-        ->whenExtensionEnabled('fof-ban-ips', function () {
-            return [
-                (new Audit())
-                    ->group('fof-ban-ips')
-                    ->listen(BanIPsEvents\IPWasBanned::class, 'fof_ban_ips.banned', function ($e) {
-                        return array_filter([
-                            'ip' => $e->bannedIP->address,
-                            'reason' => $e->bannedIP->reason,
-                            'user_id' => $e->bannedIP->user_id ?: null,
-                        ], function ($v) {
-                            return $v !== null;
-                        });
-                    })
-                    ->listen(BanIPsEvents\IPWasUnbanned::class, 'fof_ban_ips.unbanned', function ($e) {
-                        return array_filter([
-                            'ip' => $e->unbannedIP->address,
-                            'user_id' => $e->unbannedIP->user_id ?: null,
-                        ], function ($v) {
-                            return $v !== null;
-                        });
-                    }),
-            ];
-        })
-        ->whenExtensionEnabled('fof-impersonate', function () {
-            return [
-                (new Audit())
-                    ->group('fof-impersonate')
-                    ->listen(Impersonated::class, 'user.impersonated', function ($e) {
-                        return [
-                            'user_id' => $e->user->id,
-                            'reason' => $e->switchReason ?: null,
-                        ];
-                    }),
-            ];
-        })
-        ->whenExtensionEnabled('fof-merge-discussions', function () {
-            return [
-                (new Audit())
-                    ->group('fof-merge-discussions')
-                    ->register('discussion.merged_away', 'discussion.merged_into')
-                    ->using(function () {
-                        // Merge dispatches multiple logs per event, so it uses a raw listener.
-                        resolve('events')->listen(DiscussionWasMerged::class, function (DiscussionWasMerged $event) {
-                            foreach ($event->mergedDiscussions as $discussion) {
-                                AuditLogger::log('discussion.merged_away', [
-                                    'discussion_id' => $discussion->id,
-                                    'new_discussion_id' => $event->discussion->id,
-                                ]);
-                            }
-
-                            AuditLogger::log('discussion.merged_into', [
-                                'discussion_id' => $event->discussion->id,
-                                'original_discussion_ids' => $event->mergedDiscussions->pluck('id')->all(),
-                                'post_count' => $event->posts->count(),
-                            ]);
-                        });
-                    }),
-            ];
-        })
-        ->whenExtensionEnabled('fof-split', function () {
-            return [
-                (new Audit())
-                    ->group('fof-split')
-                    ->register('discussion.split_away', 'discussion.split_into')
-                    ->using(function () {
-                        resolve('events')->listen(DiscussionWasSplit::class, function (DiscussionWasSplit $event) {
-                            AuditLogger::log('discussion.split_away', [
-                                'discussion_id' => $event->originalDiscussion->id,
-                                'new_discussion_id' => $event->newDiscussion->id,
-                                'post_count' => $event->posts->count(),
-                            ]);
-                            AuditLogger::log('discussion.split_into', [
-                                'discussion_id' => $event->newDiscussion->id,
-                                'original_discussion_id' => $event->originalDiscussion->id,
-                                'post_count' => $event->posts->count(),
-                            ]);
-                        });
-                    }),
-            ];
-        })
-        ->whenExtensionEnabled('fof-user-bio', function () {
-            return [
-                (new Audit())
-                    ->group('fof-user-bio')
-                    ->listen(BioChanged::class, 'user.bio_changed', function ($e) {
-                        return ['user_id' => $e->user->id];
-                    }),
-            ];
-        })
-        ->whenExtensionEnabled('fof-username-request', function () {
-            return [
-                (new Audit())
-                    ->group('fof-username-request')
-                    ->using(new Integration\FoFUsernameRequestIntegration()),
-            ];
-        }),
-];
diff --git a/extensions/audit/locale/en.yml b/extensions/audit/locale/en.yml
index 4c2a111d06..b799e4b821 100644
--- a/extensions/audit/locale/en.yml
+++ b/extensions/audit/locale/en.yml
@@ -84,19 +84,12 @@ flarum-audit:
                 created: Started discussion {discussion}
                 deleted: Deleted discussion {discussion}
                 hidden: Hid discussion {discussion}
-                merged_away: Merged {discussion} into {new_discussion}
-                merged_into: Merged {post_count} posts from {original_discussion_ids_count} discussions into {discussion}
                 renamed: Renamed discussion from {old_title} to {new_title}
                 restored: Restored discussion {discussion}
-                split_away: Split {post_count} posts from {discussion} into {new_discussion}
-                split_into: Split {post_count} posts into new discussion {discussion}
             extension:
                 disabled: Disabled extension {package}
                 enabled: Enabled extension {package}
                 uninstalled: Uninstalled extension {package}
-            fof_ban_ips:
-                banned: Banned ip {ip}
-                unbanned: Unbanned ip {ip}
             group:
                 created: Created group {name}
                 deleted: Deleted group {name}
@@ -116,25 +109,17 @@ flarum-audit:
                 activated_with_email: Activated {username}'s account via confirmation link
                 avatar_changed: Changed {username}'s avatar
                 avatar_removed: Removed {username}'s avatar
-                bio_changed: Edited {username}'s bio
                 created: Created {username}'s account
                 deleted: Deleted {username}
                 email_changed: Changed {username}'s email from {old_email} to {new_email}
                 email_change_requested: Requested to change {username}'s email to {new_email}
                 groups_changed: Changed {username}'s groups from {old_groups} to {new_groups}
-                impersonated: Impersonated {username}
                 logged_in: Logged in {username} account
                 logged_in_with_provider: Logged in {username} account using {provider}
                 logged_out: Logged out {username} account
-                nickname_requested: Requested new nickname {new_nickname} for user {username}
-                nickname_request_approved: Approved {username}'s nickname change from {old_nickname} to {new_nickname}
-                nickname_request_rejected: Rejected {username}'s nickname change
                 password_changed: Changed {username}'s password
                 password_change_requested: Requested to change {username}'s password
                 password_reset_attempted: Requested a password reset for {username}
                 password_reset_attempted_unmatched: Requested a password reset for {email} (no matching account)
                 provider_connected: Connected provider {provider} to {username} account
                 username_changed: Changed {username}'s username from {old_username} to {new_username}
-                username_requested: Requested new username {new_username} for user {username}
-                username_request_approved: Approved {username}'s username change from {old_username} to {new_username}
-                username_request_rejected: Rejected {username}'s username change
diff --git a/extensions/audit/src/Integration/FoFUsernameRequestIntegration.php b/extensions/audit/src/Integration/FoFUsernameRequestIntegration.php
deleted file mode 100644
index 2aad60f79f..0000000000
--- a/extensions/audit/src/Integration/FoFUsernameRequestIntegration.php
+++ /dev/null
@@ -1,112 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * For detailed copyright and license information, please view the
- * LICENSE file that was distributed with this source code.
- */
-
-namespace Flarum\Audit\Integration;
-
-use Flarum\Audit\AuditLogger;
-use Flarum\User\User;
-use FoF\UserRequest\UsernameRequest;
-use Illuminate\Contracts\Container\Container;
-use Illuminate\Contracts\Events\Dispatcher;
-
-/**
- * fof/username-request integration.
- *
- * Stateful: captures the old username/nickname on user update and reacts to the request
- * lifecycle. Wired through the audit extender's `using()` escape hatch.
- *
- * Note: this lives in flarum/audit for now. Once fof/username-request adopts the public
- * Flarum\Audit\Extend\Audit API, this integration can move into that extension's extend.php.
- */
-class FoFUsernameRequestIntegration
-{
-    /**
-     * @var string[]
-     */
-    public static $actions = [
-        'user.nickname_requested',
-        'user.nickname_request_approved',
-        'user.nickname_request_rejected',
-        'user.username_requested',
-        'user.username_request_approved',
-        'user.username_request_rejected',
-    ];
-
-    protected ?string $oldNickname = null;
-    protected ?string $oldUsername = null;
-
-    public function __invoke(Container $container): void
-    {
-        if (! class_exists(UsernameRequest::class)) {
-            return;
-        }
-
-        // Listen on the events dispatcher rather than the static Model::event(Closure) API, so the
-        // listeners aren't bound to the model classes' static dispatcher.
-        $events = $container->make(Dispatcher::class);
-
-        $events->listen('eloquent.updated: '.User::class, [$this, 'userUpdated']);
-        $events->listen('eloquent.saved: '.UsernameRequest::class, [$this, 'requestSaved']);
-    }
-
-    public function userUpdated(User $user): void
-    {
-        $this->oldNickname = $user->getOriginal('nickname');
-        $this->oldUsername = $user->getOriginal('username');
-    }
-
-    public function requestSaved(UsernameRequest $request): void
-    {
-        switch ($request->status) {
-            case 'Sent':
-                if ($request->for_nickname) {
-                    AuditLogger::log('user.nickname_requested', [
-                        'user_id' => $request->user_id,
-                        'new_nickname' => $request->requested_username ?: null,
-                    ]);
-                } else {
-                    AuditLogger::log('user.username_requested', [
-                        'user_id' => $request->user_id,
-                        'new_username' => $request->requested_username,
-                    ]);
-                }
-                break;
-            case 'Approved':
-                if ($request->for_nickname) {
-                    AuditLogger::log('user.nickname_request_approved', [
-                        'user_id' => $request->user_id,
-                        'old_nickname' => $this->oldNickname ?: null,
-                        'new_nickname' => $request->requested_username ?: null,
-                    ]);
-                } else {
-                    AuditLogger::log('user.username_request_approved', [
-                        'user_id' => $request->user_id,
-                        'old_username' => $this->oldUsername,
-                        'new_username' => $request->requested_username,
-                    ]);
-                }
-                break;
-            case 'Rejected':
-                if ($request->for_nickname) {
-                    AuditLogger::log('user.nickname_request_rejected', [
-                        'user_id' => $request->user_id,
-                        'new_nickname' => $request->requested_username ?: null,
-                        'reason' => $request->reason,
-                    ]);
-                } else {
-                    AuditLogger::log('user.username_request_rejected', [
-                        'user_id' => $request->user_id,
-                        'new_username' => $request->requested_username,
-                        'reason' => $request->reason,
-                    ]);
-                }
-                break;
-        }
-    }
-}
diff --git a/extensions/audit/tests/integration/thirdparty/FoFBanIpsTest.php b/extensions/audit/tests/integration/thirdparty/FoFBanIpsTest.php
deleted file mode 100644
index ff4f750f5f..0000000000
--- a/extensions/audit/tests/integration/thirdparty/FoFBanIpsTest.php
+++ /dev/null
@@ -1,102 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * For detailed copyright and license information, please view the
- * LICENSE file that was distributed with this source code.
- */
-
-namespace Flarum\Audit\Tests\integration\thirdparty;
-
-use Flarum\Audit\Tests\integration\TestCase;
-use Flarum\User\User;
-use PHPUnit\Framework\Attributes\Test;
-
-class FoFBanIpsTest extends TestCase
-{
-    public function setUp(): void
-    {
-        parent::setUp();
-
-        $this->extension('fof-ban-ips');
-
-        $this->prepareDatabase([
-            User::class => [
-                [
-                    'id' => 3,
-                    'username' => 'user3',
-                    'email' => 'user3@example.com',
-                ],
-            ],
-        ]);
-    }
-
-    #[Test]
-    public function banned()
-    {
-        $this->sendSuccessfulRequest('POST', '/api/fof/ban-ips', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'address' => '192.168.2.2',
-                        'reason' => 'Because',
-                    ],
-                ],
-            ],
-        ], 201);
-
-        $this->assertLogExists('fof_ban_ips.banned', [
-            'ip' => '192.168.2.2',
-            'reason' => 'Because',
-        ]);
-    }
-
-    #[Test]
-    public function banned_user()
-    {
-        $this->sendSuccessfulRequest('POST', '/api/fof/ban-ips', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'userId' => 3,
-                        'address' => '192.168.2.3',
-                        'reason' => 'Because',
-                    ],
-                ],
-            ],
-        ], 201);
-
-        $this->assertLogExists('fof_ban_ips.banned', [
-            'ip' => '192.168.2.3',
-            'reason' => 'Because',
-            'user_id' => 3,
-        ]);
-    }
-
-    // We can't test unbanned without user because the event is not dispatched
-    // https://github.com/FriendsOfFlarum/ban-ips/issues/4
-
-    #[Test]
-    public function unbanned_user()
-    {
-        $this->sendSuccessfulRequest('POST', '/api/fof/ban-ips', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'userId' => 3,
-                        'address' => '192.168.2.4',
-                        'reason' => 'Because',
-                    ],
-                ],
-            ],
-        ], 201);
-
-        $this->sendSuccessfulRequest('POST', '/api/users/3/unban', []);
-
-        $this->assertLogExists('fof_ban_ips.unbanned', [
-            'ip' => '192.168.2.4',
-            'user_id' => 3,
-        ]);
-    }
-}
diff --git a/extensions/audit/tests/integration/thirdparty/FoFImpersonateTest.php b/extensions/audit/tests/integration/thirdparty/FoFImpersonateTest.php
deleted file mode 100644
index 5dedd62db7..0000000000
--- a/extensions/audit/tests/integration/thirdparty/FoFImpersonateTest.php
+++ /dev/null
@@ -1,65 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * For detailed copyright and license information, please view the
- * LICENSE file that was distributed with this source code.
- */
-
-namespace Flarum\Audit\Tests\integration\thirdparty;
-
-use Flarum\Audit\Tests\integration\TestCase;
-use Flarum\User\User;
-use PHPUnit\Framework\Attributes\Test;
-
-class FoFImpersonateTest extends TestCase
-{
-    public function setUp(): void
-    {
-        parent::setUp();
-
-        $this->extension('fof-impersonate');
-
-        $this->prepareDatabase([
-            User::class => [
-                [
-                    'id' => 3,
-                    'username' => 'user3',
-                    'email' => 'user3@example.com',
-                ],
-            ],
-        ]);
-    }
-
-    #[Test]
-    public function impersonate()
-    {
-        $adminSession = $this->sendForumCsrfRequest('POST', '/login', [
-            'json' => [
-                'identification' => 'admin',
-                'password' => 'password',
-            ],
-        ]);
-
-        // We can't use authenticateAs because Impersonate only works with sessions and not access tokens
-        $response = $this->send($this->request('POST', '/api/impersonate', [
-            'cookiesFrom' => $adminSession,
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'userId' => 3,
-                        'reason' => 'because', // Currently not optional, it would result in undefined index if not included
-                    ],
-                ],
-            ],
-        ])->withAddedHeader('X-CSRF-Token', $adminSession->getHeaderLine('X-CSRF-Token')));
-
-        $this->assertEquals(200, $response->getStatusCode());
-
-        $this->assertLogExists('user.impersonated', [
-            'user_id' => 3,
-            'reason' => 'because',
-        ]);
-    }
-}
diff --git a/extensions/audit/tests/integration/thirdparty/FoFMergeTest.php b/extensions/audit/tests/integration/thirdparty/FoFMergeTest.php
deleted file mode 100644
index 6cf269e3c5..0000000000
--- a/extensions/audit/tests/integration/thirdparty/FoFMergeTest.php
+++ /dev/null
@@ -1,89 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * For detailed copyright and license information, please view the
- * LICENSE file that was distributed with this source code.
- */
-
-namespace Flarum\Audit\Tests\integration\thirdparty;
-
-use Carbon\Carbon;
-use Flarum\Audit\Tests\integration\TestCase;
-use Flarum\Discussion\Discussion;
-use Flarum\Post\Post;
-use PHPUnit\Framework\Attributes\Test;
-
-class FoFMergeTest extends TestCase
-{
-    public function setUp(): void
-    {
-        parent::setUp();
-
-        $this->extension('fof-merge-discussions');
-
-        $date = Carbon::parse('2021-01-01T12:00:00+00:00');
-
-        $this->prepareDatabase([
-            Discussion::class => [
-                ['id' => 10, 'title' => 'A', 'created_at' => $date, 'last_posted_at' => $date, 'first_post_id' => 1, 'comment_count' => 1],
-                ['id' => 11, 'title' => 'B', 'created_at' => $date, 'last_posted_at' => $date, 'first_post_id' => 2, 'comment_count' => 1],
-                ['id' => 12, 'title' => 'C', 'created_at' => $date, 'last_posted_at' => $date, 'first_post_id' => 3, 'comment_count' => 2],
-            ],
-            Post::class => [
-                ['id' => 1, 'number' => 1, 'discussion_id' => 10, 'created_at' => $date, 'type' => 'comment', 'content' => '<t><p>A</p></t>'],
-                ['id' => 2, 'number' => 1, 'discussion_id' => 11, 'created_at' => $date, 'type' => 'comment', 'content' => '<t><p>B</p></t>'],
-                ['id' => 3, 'number' => 1, 'discussion_id' => 12, 'created_at' => $date, 'type' => 'comment', 'content' => '<t><p>C1</p></t>'],
-                ['id' => 4, 'number' => 2, 'discussion_id' => 12, 'created_at' => $date, 'type' => 'comment', 'content' => '<t><p>C2</p></t>'],
-            ],
-        ]);
-    }
-
-    #[Test]
-    public function mergeSingle()
-    {
-        $this->sendSuccessfulRequest('POST', '/api/discussions/10/merge', [
-            'json' => [
-                'ids' => '11',
-            ],
-        ]);
-
-        $this->assertLogExists('discussion.merged_into', [
-            'discussion_id' => 10,
-            'original_discussion_ids' => [11],
-            'post_count' => 1,
-        ]);
-
-        $this->assertLogExists('discussion.merged_away', [
-            'discussion_id' => 11,
-            'new_discussion_id' => 10,
-        ]);
-    }
-
-    #[Test]
-    public function mergeMultiple()
-    {
-        $this->sendSuccessfulRequest('POST', '/api/discussions/10/merge', [
-            'json' => [
-                'ids' => ['11', '12'],
-            ],
-        ]);
-
-        $this->assertLogExists('discussion.merged_into', [
-            'discussion_id' => 10,
-            'original_discussion_ids' => [11, 12],
-            'post_count' => 3,
-        ]);
-
-        $this->assertLogExists('discussion.merged_away', [
-            'discussion_id' => 11,
-            'new_discussion_id' => 10,
-        ]);
-
-        $this->assertLogExists('discussion.merged_away', [
-            'discussion_id' => 12,
-            'new_discussion_id' => 10,
-        ], 1, 1);
-    }
-}
diff --git a/extensions/audit/tests/integration/thirdparty/FoFSplitTest.php b/extensions/audit/tests/integration/thirdparty/FoFSplitTest.php
deleted file mode 100644
index 7cae7d1c38..0000000000
--- a/extensions/audit/tests/integration/thirdparty/FoFSplitTest.php
+++ /dev/null
@@ -1,68 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * For detailed copyright and license information, please view the
- * LICENSE file that was distributed with this source code.
- */
-
-namespace Flarum\Audit\Tests\integration\thirdparty;
-
-use Carbon\Carbon;
-use Flarum\Audit\Tests\integration\TestCase;
-use Flarum\Discussion\Discussion;
-use Flarum\Post\Post;
-use Illuminate\Support\Arr;
-use PHPUnit\Framework\Attributes\Test;
-
-class FoFSplitTest extends TestCase
-{
-    public function setUp(): void
-    {
-        parent::setUp();
-
-        $this->extension('fof-split');
-
-        $date = Carbon::parse('2021-01-01T12:00:00+00:00');
-
-        $this->prepareDatabase([
-            Discussion::class => [
-                ['id' => 10, 'title' => 'A', 'created_at' => $date, 'last_posted_at' => $date, 'first_post_id' => 1, 'comment_count' => 4],
-            ],
-            Post::class => [
-                ['id' => 1, 'number' => 1, 'discussion_id' => 10, 'created_at' => $date, 'type' => 'comment', 'content' => '<t><p>A</p></t>'],
-                ['id' => 2, 'number' => 2, 'discussion_id' => 10, 'created_at' => $date, 'type' => 'comment', 'content' => '<t><p>B</p></t>', 'user_id' => 1],
-                ['id' => 3, 'number' => 3, 'discussion_id' => 10, 'created_at' => $date, 'type' => 'comment', 'content' => '<t><p>C</p></t>'],
-                ['id' => 4, 'number' => 4, 'discussion_id' => 10, 'created_at' => $date, 'type' => 'comment', 'content' => '<t><p>D</p></t>'],
-            ],
-        ]);
-    }
-
-    #[Test]
-    public function split()
-    {
-        $response = $this->sendSuccessfulRequest('POST', '/api/split', [
-            'json' => [
-                'title' => 'Split',
-                'start_post_id' => 2,
-                'end_post_number' => 3,
-            ],
-        ]);
-
-        $body = json_decode($response->getBody()->getContents(), true);
-        $newDiscussionId = Arr::get($body, 'data.id');
-
-        $this->assertLogExists('discussion.split_away', [
-            'discussion_id' => 10,
-            'new_discussion_id' => $newDiscussionId,
-            'post_count' => 2,
-        ]);
-
-        $this->assertLogExists('discussion.split_into', [
-            'discussion_id' => $newDiscussionId,
-            'original_discussion_id' => 10,
-            'post_count' => 2,
-        ]);
-    }
-}
diff --git a/extensions/audit/tests/integration/thirdparty/FoFUserBioTest.php b/extensions/audit/tests/integration/thirdparty/FoFUserBioTest.php
deleted file mode 100644
index 56e6b2ec5e..0000000000
--- a/extensions/audit/tests/integration/thirdparty/FoFUserBioTest.php
+++ /dev/null
@@ -1,52 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * For detailed copyright and license information, please view the
- * LICENSE file that was distributed with this source code.
- */
-
-namespace Flarum\Audit\Tests\integration\thirdparty;
-
-use Flarum\Audit\Tests\integration\TestCase;
-use Flarum\User\User;
-use PHPUnit\Framework\Attributes\Test;
-
-class FoFUserBioTest extends TestCase
-{
-    public function setUp(): void
-    {
-        parent::setUp();
-
-        $this->extension('fof-user-bio');
-
-        $this->prepareDatabase([
-            User::class => [
-                [
-                    'id' => 3,
-                    'username' => 'user3',
-                    'email' => 'user3@example.com',
-                ],
-            ],
-        ]);
-    }
-
-    #[Test]
-    public function update()
-    {
-        $this->sendSuccessfulRequest('PATCH', '/api/users/3', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'bio' => 'Hello World',
-                    ],
-                ],
-            ],
-        ]);
-
-        $this->assertLogExists('user.bio_changed', [
-            'user_id' => 3,
-        ]);
-    }
-}
diff --git a/extensions/audit/tests/integration/thirdparty/FoFUsernameRequestTest.php b/extensions/audit/tests/integration/thirdparty/FoFUsernameRequestTest.php
deleted file mode 100644
index c3a127182f..0000000000
--- a/extensions/audit/tests/integration/thirdparty/FoFUsernameRequestTest.php
+++ /dev/null
@@ -1,169 +0,0 @@
-<?php
-
-/*
- * This file is part of Flarum.
- *
- * For detailed copyright and license information, please view the
- * LICENSE file that was distributed with this source code.
- */
-
-namespace Flarum\Audit\Tests\integration\thirdparty;
-
-use Flarum\Audit\Tests\integration\TestCase;
-use Flarum\User\User;
-use PHPUnit\Framework\Attributes\Test;
-
-class FoFUsernameRequestTest extends TestCase
-{
-    public function setUp(): void
-    {
-        parent::setUp();
-
-        $this->extension('fof-username-request', 'flarum-nicknames');
-
-        $this->prepareDatabase([
-            User::class => [
-                [
-                    'id' => 3,
-                    'username' => 'user3',
-                    'email' => 'user3@example.com',
-                ],
-            ],
-            'username_requests' => [
-                ['id' => 1, 'user_id' => 3, 'requested_username' => 'user33', 'status' => 'Sent'],
-                ['id' => 2, 'user_id' => 3, 'requested_username' => 'user33', 'status' => 'Sent', 'for_nickname' => true],
-            ],
-        ]);
-    }
-
-    #[Test]
-    public function createUsername()
-    {
-        $this->sendSuccessfulRequest('POST', '/api/username-requests', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'username' => 'admin2',
-                    ],
-                ],
-                'meta' => [
-                    'password' => 'password',
-                ],
-            ],
-        ], 201);
-
-        $this->assertLogExists('user.username_requested', [
-            'user_id' => 1,
-            'new_username' => 'admin2',
-        ]);
-    }
-
-    #[Test]
-    public function createNickname()
-    {
-        $this->sendSuccessfulRequest('POST', '/api/username-requests', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'username' => 'admin2',
-                        'forNickname' => true,
-                    ],
-                ],
-                'meta' => [
-                    'password' => 'password',
-                ],
-            ],
-        ], 201);
-
-        $this->assertLogExists('user.nickname_requested', [
-            'user_id' => 1,
-            'new_nickname' => 'admin2',
-        ]);
-    }
-
-    #[Test]
-    public function approveUsername()
-    {
-        $this->sendSuccessfulRequest('PATCH', '/api/username-requests/1', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'action' => 'Approved',
-                    ],
-                ],
-            ],
-        ]);
-
-        $this->assertLogExists('user.username_request_approved', [
-            'user_id' => 3,
-            'old_username' => 'user3',
-            'new_username' => 'user33',
-        ]);
-
-        $this->assertLogDoesntExist('user.username_changed');
-    }
-
-    #[Test]
-    public function approveNickname()
-    {
-        $this->sendSuccessfulRequest('PATCH', '/api/username-requests/2', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'action' => 'Approved',
-                    ],
-                ],
-            ],
-        ]);
-
-        $this->assertLogExists('user.nickname_request_approved', [
-            'user_id' => 3,
-            'old_nickname' => null,
-            'new_nickname' => 'user33',
-        ]);
-
-        $this->assertLogDoesntExist('user.nickname_changed');
-    }
-
-    #[Test]
-    public function rejectUsername()
-    {
-        $this->sendSuccessfulRequest('PATCH', '/api/username-requests/1', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'action' => 'Rejected',
-                        'reason' => 'because',
-                    ],
-                ],
-            ],
-        ]);
-
-        $this->assertLogExists('user.username_request_rejected', [
-            'user_id' => 3,
-            'new_username' => 'user33',
-            'reason' => 'because',
-        ]);
-    }
-
-    #[Test]
-    public function rejectNickname()
-    {
-        $this->sendSuccessfulRequest('PATCH', '/api/username-requests/2', [
-            'json' => [
-                'data' => [
-                    'attributes' => [
-                        'action' => 'Rejected',
-                        'reason' => 'because',
-                    ],
-                ],
-            ],
-        ]);
-
-        $this->assertLogExists('user.nickname_request_rejected', [
-            'user_id' => 3,
-            'new_nickname' => 'user33',
-            'reason' => 'because',
-        ]);
-    }
-}
diff --git a/extensions/audit/tests/phpunit.integration.xml b/extensions/audit/tests/phpunit.integration.xml
index fc308069e8..849ceb516e 100644
--- a/extensions/audit/tests/phpunit.integration.xml
+++ b/extensions/audit/tests/phpunit.integration.xml
@@ -19,8 +19,6 @@
         <testsuite name="Flarum Integration Tests">
             <directory suffix="Test.php">./integration</directory>
              <exclude>./integration/tmp</exclude>
-             <!-- These integrations depend on third-party extensions that aren't part of the monorepo. -->
-             <exclude>./integration/thirdparty</exclude>
         </testsuite>
     </testsuites>
 </phpunit>
diff --git a/extensions/audit/tests/unit/IntegrationActionRegistrationTest.php b/extensions/audit/tests/unit/IntegrationActionRegistrationTest.php
index ec266bc688..bae48246c5 100644
--- a/extensions/audit/tests/unit/IntegrationActionRegistrationTest.php
+++ b/extensions/audit/tests/unit/IntegrationActionRegistrationTest.php
@@ -12,7 +12,6 @@
 use Flarum\Audit\Extend\Audit;
 use Flarum\Audit\Integration\CoreSettingIntegration;
 use Flarum\Audit\Integration\CoreUserIntegration;
-use Flarum\Audit\Integration\FoFUsernameRequestIntegration;
 use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
@@ -86,13 +85,12 @@ public function register_and_listen_also_contribute_actions()
 
     public static function integrations(): array
     {
-        // First-party extension integrations (flags, nicknames, tags) now live in their own
-        // extensions and are covered by those extensions' AuditTest suites. Only the core and
-        // bundled-thirdparty integrations that still ship with flarum/audit are exercised here.
+        // Third-party extension integrations now live in their own extensions and are covered
+        // by those extensions' AuditTest suites. Only the core integrations that ship with
+        // flarum/audit are exercised here.
         return [
             'core user' => [CoreUserIntegration::class],
             'core setting' => [CoreSettingIntegration::class],
-            'fof username request' => [FoFUsernameRequestIntegration::class],
         ];
     }
 }
diff --git a/phpstan.neon b/phpstan.neon
index fdc8567a0d..c59e59e6df 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -43,7 +43,4 @@ parameters:
 	  - extensions/gdpr/src
 	excludePaths:
 		- *.blade.php
-		# Audit integrations for third-party extensions reference classes outside the monorepo.
-		- extensions/audit/extend.thirdparty.php
-		- extensions/audit/src/Integration/FoFUsernameRequestIntegration.php
 	databaseMigrationsPath: ['framework/core/migrations']