Rocket.Chat/apps/meteor/server/settings/custom-sounds.ts

import { settingsRegistry } from '../../app/settings/server';

export const createSoundsSettings = () =>
	settingsRegistry.addGroup('CustomSoundsFilesystem', async function () {
		await this.add('CustomSounds_Storage_Type', 'GridFS', {
			type: 'select',
			values: [
				{
					key: 'GridFS',
					i18nLabel: 'GridFS',
				},
				{
					key: 'FileSystem',
					i18nLabel: 'FileSystem',
				},
			],
			i18nLabel: 'FileUpload_Storage_Type',
		});

		await this.add('CustomSounds_FileSystemPath', '', {
			type: 'string',
			enableQuery: {
				_id: 'CustomSounds_Storage_Type',
				value: 'FileSystem',
			},
			i18nLabel: 'FileUpload_FileSystemPath',
		});
	});