diff --git a/packages/backend/migration/1746949539915-migrateSomeConfigFileSettingsToMeta.js b/packages/backend/migration/1746949539915-migrateSomeConfigFileSettingsToMeta.js
index a56936d538..3243f43b91 100644
--- a/packages/backend/migration/1746949539915-migrateSomeConfigFileSettingsToMeta.js
+++ b/packages/backend/migration/1746949539915-migrateSomeConfigFileSettingsToMeta.js
@@ -3,13 +3,17 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
+import {loadConfig} from "./js/migration-config.js";
+
 export class MigrateSomeConfigFileSettingsToMeta1746949539915 {
     name = 'MigrateSomeConfigFileSettingsToMeta1746949539915'
 
     async up(queryRunner) {
-        await queryRunner.query(`ALTER TABLE "meta" ADD "proxyRemoteFiles" boolean NOT NULL DEFAULT true`);
-        await queryRunner.query(`ALTER TABLE "meta" ADD "signToActivityPubGet" boolean NOT NULL DEFAULT true`);
-        await queryRunner.query(`ALTER TABLE "meta" ADD "allowExternalApRedirect" boolean NOT NULL DEFAULT true`);
+        const config = loadConfig();
+        // $1 cannot be used in ALTER TABLE queries
+        await queryRunner.query(`ALTER TABLE "meta" ADD "proxyRemoteFiles" boolean NOT NULL DEFAULT ${config.proxyRemoteFiles}`);
+        await queryRunner.query(`ALTER TABLE "meta" ADD "signToActivityPubGet" boolean NOT NULL DEFAULT ${config.signToActivityPubGet}`);
+        await queryRunner.query(`ALTER TABLE "meta" ADD "allowExternalApRedirect" boolean NOT NULL DEFAULT ${!config.disallowExternalApRedirect}`);
     }
 
     async down(queryRunner) {
diff --git a/packages/backend/migration/js/migration-config.js b/packages/backend/migration/js/migration-config.js
index 8cfbb21470..853735661b 100644
--- a/packages/backend/migration/js/migration-config.js
+++ b/packages/backend/migration/js/migration-config.js
@@ -3,6 +3,29 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
+import { path as configYamlPath } from '../../built/config.js';
+import * as yaml from 'js-yaml';
+import fs from "node:fs";
+
 export function isConcurrentIndexMigrationEnabled() {
 	return process.env.MISSKEY_MIGRATION_CREATE_INDEX_CONCURRENTLY === '1';
 }
+
+let loadedConfigCache = undefined;
+
+function loadConfigInternal() {
+	const config = yaml.load(fs.readFileSync(configYamlPath, 'utf-8'));
+
+	return {
+		disallowExternalApRedirect: Boolean(config.disallowExternalApRedirect ?? false),
+		proxyRemoteFiles: Boolean(config.proxyRemoteFiles ?? false),
+		signToActivityPubGet: Boolean(config.signToActivityPubGet ?? true),
+	}
+}
+
+export function loadConfig() {
+	if (loadedConfigCache === undefined) {
+		loadedConfigCache = loadConfigInternal();
+	}
+	return loadedConfigCache;
+}
diff --git a/packages/backend/src/config.ts b/packages/backend/src/config.ts
index 177e896ffa..9031096745 100644
--- a/packages/backend/src/config.ts
+++ b/packages/backend/src/config.ts
@@ -222,7 +222,7 @@ const dir = `${_dirname}/../../../.config`;
 /**
  * Path of configuration file
  */
-const path = process.env.MISSKEY_CONFIG_YML
+export const path = process.env.MISSKEY_CONFIG_YML
 	? resolve(dir, process.env.MISSKEY_CONFIG_YML)
 	: process.env.NODE_ENV === 'test'
 		? resolve(dir, 'test.yml')