diff --git a/packages/backend/src/server/api/endpoints/notes/create.ts b/packages/backend/src/server/api/endpoints/notes/create.ts
index 8d13fb483..9c22ca2e0 100644
--- a/packages/backend/src/server/api/endpoints/notes/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/create.ts
@@ -1,4 +1,5 @@
 import { In } from 'typeorm';
+import { noteVisibilities } from 'foundkey-js';
 import create from '@/services/note/create.js';
 import { User } from '@/models/entities/user.js';
 import { Users, DriveFiles, Notes, Channels, Blockings } from '@/models/index.js';
@@ -7,7 +8,6 @@ import { Note } from '@/models/entities/note.js';
 import { Channel } from '@/models/entities/channel.js';
 import { MAX_NOTE_TEXT_LENGTH, HOUR } from '@/const.js';
 import { isPureRenote } from '@/misc/renote.js';
-import { noteVisibilities } from '../../../../types.js';
 import { ApiError } from '../../error.js';
 import define from '../../define.js';
 import { getNote } from '../../common/getters.js';
diff --git a/packages/backend/src/types.ts b/packages/backend/src/types.ts
deleted file mode 100644
index 5ca4a966a..000000000
--- a/packages/backend/src/types.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-export const notificationTypes = ['follow', 'mention', 'reply', 'renote', 'quote', 'reaction', 'pollVote', 'pollEnded', 'receiveFollowRequest', 'followRequestAccepted', 'groupInvited', 'app'] as const;
-
-/**
- * Note visibilities, ordered from most to least open.
- */
-export const noteVisibilities = ['public', 'home', 'followers', 'specified'] as const;
-
-export const mutedNoteReasons = ['word', 'manual', 'spam', 'other'] as const;
-
-export const ffVisibility = ['public', 'followers', 'private'] as const;