diff --git a/lib/config/migrations/custom/regex-managers-migration.spec.ts b/lib/config/migrations/custom/regex-managers-migration.spec.ts
index 8311265bd50e55..be49c6bcf3c077 100644
--- a/lib/config/migrations/custom/regex-managers-migration.spec.ts
+++ b/lib/config/migrations/custom/regex-managers-migration.spec.ts
@@ -1,5 +1,5 @@
 import { partial } from '../../../../test/util';
-import type { CustomManager } from '../../types';
+import type { CustomManager } from '../../../modules/manager/custom/types';
 import { RegexManagersMigration } from './regex-managers-migration';
 
 describe('config/migrations/custom/regex-managers-migration', () => {
diff --git a/lib/config/migrations/custom/regex-managers-migration.ts b/lib/config/migrations/custom/regex-managers-migration.ts
index ee23c0f6da01d3..afaad6c80537b2 100644
--- a/lib/config/migrations/custom/regex-managers-migration.ts
+++ b/lib/config/migrations/custom/regex-managers-migration.ts
@@ -1,5 +1,5 @@
 import is from '@sindresorhus/is';
-import type { CustomManager } from '../../types';
+import type { CustomManager } from '../../../modules/manager/custom/types';
 import { AbstractMigration } from '../base/abstract-migration';
 
 export class RegexManagersMigration extends AbstractMigration {
diff --git a/lib/config/types.ts b/lib/config/types.ts
index e849702b44b66d..ac6fa1788f70db 100644
--- a/lib/config/types.ts
+++ b/lib/config/types.ts
@@ -1,5 +1,6 @@
 import type { LogLevel } from 'bunyan';
 import type { PlatformId } from '../constants';
+import type { CustomManager } from '../modules/manager/custom/types';
 import type { HostRule } from '../types';
 import type { GitNoVerifyOption } from '../util/git/types';
 import type { MergeConfidence } from '../util/merge-confidence/types';
@@ -184,26 +185,6 @@ export type RenovateRepository =
       repository: string;
       secrets?: Record<string, string>;
     };
-export interface RegexManagerTemplates {
-  depNameTemplate?: string;
-  packageNameTemplate?: string;
-  datasourceTemplate?: string;
-  versioningTemplate?: string;
-  depTypeTemplate?: string;
-  currentValueTemplate?: string;
-  currentDigestTemplate?: string;
-  extractVersionTemplate?: string;
-  registryUrlTemplate?: string;
-}
-
-export type CustomManagerName = 'regex';
-export interface CustomManager extends RegexManagerTemplates {
-  customType: CustomManagerName;
-  fileMatch: string[];
-  matchStrings: string[];
-  matchStringsStrategy?: MatchStringsStrategy;
-  autoReplaceStringTemplate?: string;
-}
 
 export type UseBaseBranchConfigType = 'merge' | 'none';
 export type ConstraintsFilter = 'strict' | 'none';
diff --git a/lib/config/validation.ts b/lib/config/validation.ts
index 7679a7379a3dd7..d63a47aaaa2cbf 100644
--- a/lib/config/validation.ts
+++ b/lib/config/validation.ts
@@ -1,7 +1,11 @@
 import is from '@sindresorhus/is';
 import { allManagersList, getManagerList } from '../modules/manager';
 import { isCustomManager } from '../modules/manager/custom';
-import type { RegexManagerConfig } from '../modules/manager/custom/regex/types';
+import type {
+  RegexManagerConfig,
+  RegexManagerTemplates,
+} from '../modules/manager/custom/regex/types';
+import type { CustomManager } from '../modules/manager/custom/types';
 import { configRegexPredicate, isConfigRegex, regEx } from '../util/regex';
 import * as template from '../util/template';
 import {
@@ -12,8 +16,6 @@ import { migrateConfig } from './migration';
 import { getOptions } from './options';
 import { resolveConfigPresets } from './presets';
 import type {
-  CustomManager,
-  RegexManagerTemplates,
   RenovateConfig,
   RenovateOptions,
   ValidationMessage,
@@ -657,7 +659,7 @@ export async function validateConfig(
 }
 
 function validateRegexManagerFields(
-  regexManager: RegexManagerConfig,
+  regexManager: Partial<RegexManagerConfig>,
   currentPath: string,
   errors: ValidationMessage[]
 ): void {
@@ -684,7 +686,7 @@ function validateRegexManagerFields(
     const templateField = `${field}Template` as keyof RegexManagerTemplates;
     if (
       !regexManager[templateField] &&
-      !regexManager.matchStrings.some((matchString) =>
+      !regexManager.matchStrings?.some((matchString) =>
         matchString.includes(`(?<${field}>`)
       )
     ) {
diff --git a/lib/modules/manager/custom/regex/index.spec.ts b/lib/modules/manager/custom/regex/index.spec.ts
index e3fe7d34261279..608ba97fadb830 100644
--- a/lib/modules/manager/custom/regex/index.spec.ts
+++ b/lib/modules/manager/custom/regex/index.spec.ts
@@ -1,7 +1,7 @@
 import { codeBlock } from 'common-tags';
 import { Fixtures } from '../../../../../test/fixtures';
 import { logger } from '../../../../logger';
-import type { CustomExtractConfig } from '../../types';
+import type { CustomExtractConfig } from '../types';
 import { defaultConfig, displayName, extractPackageFile } from '.';
 
 const dockerfileContent = Fixtures.get(`Dockerfile`);
diff --git a/lib/modules/manager/custom/regex/index.ts b/lib/modules/manager/custom/regex/index.ts
index 58a36d3b748f32..2860ba4bc3887f 100644
--- a/lib/modules/manager/custom/regex/index.ts
+++ b/lib/modules/manager/custom/regex/index.ts
@@ -1,5 +1,4 @@
 import is from '@sindresorhus/is';
-import type { RegexManagerTemplates } from '../../../../config/types';
 import type {
   ExtractConfig,
   PackageDependency,
@@ -7,7 +6,7 @@ import type {
   Result,
 } from '../../types';
 import { handleAny, handleCombination, handleRecursive } from './strategies';
-import type { RegexManagerConfig } from './types';
+import type { RegexManagerConfig, RegexManagerTemplates } from './types';
 import { validMatchFields } from './utils';
 
 export const defaultConfig = {
diff --git a/lib/modules/manager/custom/regex/types.ts b/lib/modules/manager/custom/regex/types.ts
index 2f9682ce8c0ab7..ed5f3105e10eb9 100644
--- a/lib/modules/manager/custom/regex/types.ts
+++ b/lib/modules/manager/custom/regex/types.ts
@@ -1,19 +1,33 @@
-import type { CustomExtractConfig } from '../../types';
+import type { MatchStringsStrategy } from '../../../../config/types';
 
 export interface ExtractionTemplate {
   groups: Record<string, string>;
   replaceString: string | undefined;
 }
 
+export interface RegexManagerTemplates {
+  depNameTemplate?: string;
+  packageNameTemplate?: string;
+  datasourceTemplate?: string;
+  versioningTemplate?: string;
+  depTypeTemplate?: string;
+  currentValueTemplate?: string;
+  currentDigestTemplate?: string;
+  extractVersionTemplate?: string;
+  registryUrlTemplate?: string;
+}
+
+export interface RegexManagerConfig extends RegexManagerTemplates {
+  matchStrings: string[];
+  matchStringsStrategy?: MatchStringsStrategy;
+  autoReplaceStringTemplate?: string;
+}
+
 export interface RecursionParameter {
   content: string;
   packageFile: string;
-  config: CustomExtractConfig;
+  config: RegexManagerConfig;
   regexes: RegExp[];
   index: number;
   combinedGroups: Record<string, string>;
 }
-
-export interface RegexManagerConfig extends CustomExtractConfig {
-  matchStrings: string[];
-}
diff --git a/lib/modules/manager/custom/regex/utils.ts b/lib/modules/manager/custom/regex/utils.ts
index 1f30b592e80153..37759af74f8a82 100644
--- a/lib/modules/manager/custom/regex/utils.ts
+++ b/lib/modules/manager/custom/regex/utils.ts
@@ -1,11 +1,14 @@
 import { URL } from 'node:url';
 import is from '@sindresorhus/is';
 import { migrateDatasource } from '../../../../config/migrations/custom/datasource-migration';
-import type { RegexManagerTemplates } from '../../../../config/types';
 import { logger } from '../../../../logger';
 import * as template from '../../../../util/template';
-import type { CustomExtractConfig, PackageDependency } from '../../types';
-import type { ExtractionTemplate } from './types';
+import type { PackageDependency } from '../../types';
+import type {
+  ExtractionTemplate,
+  RegexManagerConfig,
+  RegexManagerTemplates,
+} from './types';
 
 export const validMatchFields = [
   'depName',
@@ -51,7 +54,7 @@ function updateDependency(
 
 export function createDependency(
   extractionTemplate: ExtractionTemplate,
-  config: CustomExtractConfig,
+  config: RegexManagerConfig,
   dep?: PackageDependency
 ): PackageDependency | null {
   const dependency = dep ?? {};
diff --git a/lib/modules/manager/custom/types.ts b/lib/modules/manager/custom/types.ts
new file mode 100644
index 00000000000000..de387685f80717
--- /dev/null
+++ b/lib/modules/manager/custom/types.ts
@@ -0,0 +1,13 @@
+import type { RegexManagerConfig } from './regex/types';
+
+export interface CustomExtractConfig extends Partial<RegexManagerConfig> {}
+
+export type CustomManagerName = 'regex';
+
+export interface CustomManager extends Partial<RegexManagerConfig> {
+  customType: CustomManagerName;
+  fileMatch: string[];
+}
+
+// NOTE:
+// the two interfaces might seem similar but they have different usage similar to ManagerConfig and ExtractConfig
diff --git a/lib/modules/manager/types.ts b/lib/modules/manager/types.ts
index 9312bcd6069166..8cfdba235b92ee 100644
--- a/lib/modules/manager/types.ts
+++ b/lib/modules/manager/types.ts
@@ -1,7 +1,6 @@
 import type { ReleaseType } from 'semver';
 import type {
   MatchStringsStrategy,
-  RegexManagerTemplates,
   UpdateType,
   ValidationMessage,
 } from '../../config/types';
@@ -9,6 +8,7 @@ import type { Category } from '../../constants';
 import type { ModuleApi, RangeStrategy, SkipReason } from '../../types';
 import type { FileChange } from '../../util/git/types';
 import type { MergeConfidence } from '../../util/merge-confidence/types';
+import type { CustomExtractConfig } from './custom/types';
 
 export type Result<T> = T | Promise<T>;
 
@@ -23,12 +23,6 @@ export interface ExtractConfig extends CustomExtractConfig {
   skipInstalls?: boolean | null;
 }
 
-export interface CustomExtractConfig extends RegexManagerTemplates {
-  autoReplaceStringTemplate?: string;
-  matchStrings?: string[];
-  matchStringsStrategy?: MatchStringsStrategy;
-}
-
 export interface UpdateArtifactsConfig {
   isLockFileMaintenance?: boolean;
   constraints?: Record<string, string>;
diff --git a/lib/workers/repository/extract/extract-fingerprint-config.ts b/lib/workers/repository/extract/extract-fingerprint-config.ts
index 8f17505cee8582..8f3bf56a2fbf33 100644
--- a/lib/workers/repository/extract/extract-fingerprint-config.ts
+++ b/lib/workers/repository/extract/extract-fingerprint-config.ts
@@ -1,12 +1,10 @@
 import { getManagerConfig, mergeChildConfig } from '../../../config';
-import type {
-  RegexManagerTemplates,
-  RenovateConfig,
-} from '../../../config/types';
+import type { RenovateConfig } from '../../../config/types';
 import { allManagersList } from '../../../modules/manager';
 import { isCustomManager } from '../../../modules/manager/custom';
+import type { RegexManagerTemplates } from '../../../modules/manager/custom/regex/types';
 import { validMatchFields } from '../../../modules/manager/custom/regex/utils';
-import type { CustomExtractConfig } from '../../../modules/manager/types';
+import type { CustomExtractConfig } from '../../../modules/manager/custom/types';
 import type { WorkerExtractConfig } from '../../types';
 
 export interface FingerprintExtractConfig {