5 files changed, 46 insertions, 8 deletions
diff --git a/packages/backend/src/misc/json-schema.ts b/packages/backend/src/misc/json-schema.ts
index 3fa49e3cd1..cf233defd9 100644
--- a/packages/backend/src/misc/json-schema.ts
+++ b/packages/backend/src/misc/json-schema.ts
@@ -64,6 +64,7 @@ import {
 	packedMetaDetailedOnlySchema,
 	packedMetaDetailedSchema,
 	packedMetaLiteSchema,
+	packedMetaClientOptionsSchema,
 } from '@/models/json-schema/meta.js';
 import { packedUserWebhookSchema } from '@/models/json-schema/user-webhook.js';
 import { packedSystemWebhookSchema } from '@/models/json-schema/system-webhook.js';
@@ -135,6 +136,7 @@ export const refs = {
 	MetaLite: packedMetaLiteSchema,
 	MetaDetailedOnly: packedMetaDetailedOnlySchema,
 	MetaDetailed: packedMetaDetailedSchema,
+	MetaClientOptions: packedMetaClientOptionsSchema,
 	UserWebhook: packedUserWebhookSchema,
 	SystemWebhook: packedSystemWebhookSchema,
 	AbuseReportNotificationRecipient: packedAbuseReportNotificationRecipientSchema,
diff --git a/packages/backend/src/models/Meta.ts b/packages/backend/src/models/Meta.ts
index a6f68194c5..620853450c 100644
--- a/packages/backend/src/models/Meta.ts
+++ b/packages/backend/src/models/Meta.ts
@@ -725,7 +725,11 @@ export class MiMeta {
 	@Column('jsonb', {
 		default: { },
 	})
-	public clientOptions: Record<string, any>;
+	public clientOptions: {
+		entrancePageStyle: 'classic' | 'simple';
+		showTimelineForVisitor: boolean;
+		showActivitiesForVisitor: boolean;
+	};
 }
 
 export type SoftwareSuspension = {
diff --git a/packages/backend/src/models/json-schema/meta.ts b/packages/backend/src/models/json-schema/meta.ts
index a0e7d490b3..0c3ec141bc 100644
--- a/packages/backend/src/models/json-schema/meta.ts
+++ b/packages/backend/src/models/json-schema/meta.ts
@@ -72,8 +72,7 @@ export const packedMetaLiteSchema = {
 			optional: false, nullable: true,
 		},
 		clientOptions: {
-			type: 'object',
-			optional: false, nullable: false,
+			ref: 'MetaClientOptions',
 		},
 		disableRegistration: {
 			type: 'boolean',
@@ -397,3 +396,23 @@ export const packedMetaDetailedSchema = {
 		},
 	],
 } as const;
+
+export const packedMetaClientOptionsSchema = {
+	type: 'object',
+	optional: false, nullable: false,
+	properties: {
+		entrancePageStyle: {
+			type: 'string',
+			enum: ['classic', 'simple'],
+			optional: false, nullable: false,
+		},
+		showTimelineForVisitor: {
+			type: 'boolean',
+			optional: false, nullable: false,
+		},
+		showActivitiesForVisitor: {
+			type: 'boolean',
+			optional: false, nullable: false,
+		},
+	},
+} as const;
diff --git a/packages/backend/src/server/api/endpoints/admin/meta.ts b/packages/backend/src/server/api/endpoints/admin/meta.ts
index 2c7f793584..5beed3a7e8 100644
--- a/packages/backend/src/server/api/endpoints/admin/meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/meta.ts
@@ -428,8 +428,7 @@ export const meta = {
 				optional: false, nullable: true,
 			},
 			clientOptions: {
-				type: 'object',
-				optional: false, nullable: false,
+				ref: 'MetaClientOptions',
 			},
 			description: {
 				type: 'string',
diff --git a/packages/backend/src/server/api/endpoints/admin/update-meta.ts b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
index b3c2cecc67..7a8dfc4555 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -3,7 +3,8 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Injectable } from '@nestjs/common';
+import { Injectable, Inject } from '@nestjs/common';
+import { DI } from '@/di-symbols.js';
 import type { MiMeta } from '@/models/Meta.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
@@ -67,7 +68,14 @@ export const paramDef = {
 		description: { type: 'string', nullable: true },
 		defaultLightTheme: { type: 'string', nullable: true },
 		defaultDarkTheme: { type: 'string', nullable: true },
-		clientOptions: { type: 'object', nullable: false },
+		clientOptions: {
+			type: 'object', nullable: false,
+			properties: {
+				entrancePageStyle: { type: 'string', nullable: false, enum: ['classic', 'simple'] },
+				showTimelineForVisitor: { type: 'boolean', nullable: false },
+				showActivitiesForVisitor: { type: 'boolean', nullable: false },
+			},
+		},
 		cacheRemoteFiles: { type: 'boolean' },
 		cacheRemoteSensitiveFiles: { type: 'boolean' },
 		emailRequiredForSignup: { type: 'boolean' },
@@ -217,6 +225,9 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
+		@Inject(DI.meta)
+		private serverSettings: MiMeta,
+
 		private metaService: MetaService,
 		private moderationLogService: ModerationLogService,
 	) {
@@ -329,7 +340,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			if (ps.clientOptions !== undefined) {
-				set.clientOptions = ps.clientOptions;
+				set.clientOptions = {
+					...serverSettings.clientOptions,
+					...ps.clientOptions,
+				};
 			}
 
 			if (ps.cacheRemoteFiles !== undefined) {