diff --git a/packages/backend-common/src/alpha.ts b/packages/backend-common/src/alpha.ts
index e0a5b2ddc2..0fd15459fe 100644
--- a/packages/backend-common/src/alpha.ts
+++ b/packages/backend-common/src/alpha.ts
@@ -14,4 +14,4 @@
  * limitations under the License.
  */
 
-export * from './context';
+export * from './deprecated/context';
diff --git a/packages/backend-common/src/auth/createLegacyAuthAdapters.test.ts b/packages/backend-common/src/compat/auth/createLegacyAuthAdapters.test.ts
similarity index 100%
rename from packages/backend-common/src/auth/createLegacyAuthAdapters.test.ts
rename to packages/backend-common/src/compat/auth/createLegacyAuthAdapters.test.ts
diff --git a/packages/backend-common/src/auth/createLegacyAuthAdapters.ts b/packages/backend-common/src/compat/auth/createLegacyAuthAdapters.ts
similarity index 98%
rename from packages/backend-common/src/auth/createLegacyAuthAdapters.ts
rename to packages/backend-common/src/compat/auth/createLegacyAuthAdapters.ts
index a96d6ebb76..0f591eac6c 100644
--- a/packages/backend-common/src/auth/createLegacyAuthAdapters.ts
+++ b/packages/backend-common/src/compat/auth/createLegacyAuthAdapters.ts
@@ -35,15 +35,14 @@ import {
   createCredentialsWithUserPrincipal,
   createCredentialsWithNonePrincipal,
   toInternalBackstageCredentials,
-} from '../../../backend-defaults/src/entrypoints/auth/helpers';
+} from '../../../../backend-defaults/src/entrypoints/auth/helpers';
 // TODO is this circular thingy a problem? Test in e2e
 import {
   type IdentityApiGetIdentityRequest,
   DefaultIdentityClient,
 } from '@backstage/plugin-auth-node';
 import { decodeJwt } from 'jose';
-import { TokenManager } from '../deprecated';
-import { PluginEndpointDiscovery } from '../deprecated';
+import { TokenManager, PluginEndpointDiscovery } from '../../deprecated';
 import { JsonObject } from '@backstage/types';
 
 class AuthCompat implements AuthService {
diff --git a/packages/backend-common/src/auth/index.ts b/packages/backend-common/src/compat/auth/index.ts
similarity index 100%
rename from packages/backend-common/src/auth/index.ts
rename to packages/backend-common/src/compat/auth/index.ts
diff --git a/packages/backend-common/src/cache/cacheToPluginCacheManager.ts b/packages/backend-common/src/compat/cache/cacheToPluginCacheManager.ts
similarity index 100%
rename from packages/backend-common/src/cache/cacheToPluginCacheManager.ts
rename to packages/backend-common/src/compat/cache/cacheToPluginCacheManager.ts
diff --git a/packages/backend-common/src/cache/index.ts b/packages/backend-common/src/compat/cache/index.ts
similarity index 100%
rename from packages/backend-common/src/cache/index.ts
rename to packages/backend-common/src/compat/cache/index.ts
diff --git a/packages/backend-common/src/urls.ts b/packages/backend-common/src/compat/index.ts
similarity index 73%
rename from packages/backend-common/src/urls.ts
rename to packages/backend-common/src/compat/index.ts
index 848cea25d9..d702772335 100644
--- a/packages/backend-common/src/urls.ts
+++ b/packages/backend-common/src/compat/index.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Backstage Authors
+ * Copyright 2024 The Backstage Authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,12 +14,7 @@
  * limitations under the License.
  */
 
-export function isValidUrl(url: string): boolean {
-  try {
-    // eslint-disable-next-line no-new
-    new URL(url);
-    return true;
-  } catch {
-    return false;
-  }
-}
+export * from './legacy';
+export * from './auth';
+export * from './cache';
+export * from './logging';
diff --git a/packages/backend-common/src/urls.test.ts b/packages/backend-common/src/compat/legacy/index.ts
similarity index 50%
rename from packages/backend-common/src/urls.test.ts
rename to packages/backend-common/src/compat/legacy/index.ts
index c2a67fb849..1172084cd7 100644
--- a/packages/backend-common/src/urls.test.ts
+++ b/packages/backend-common/src/compat/legacy/index.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright 2021 The Backstage Authors
+ * Copyright 2024 The Backstage Authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,21 +14,5 @@
  * limitations under the License.
  */
 
-import { isValidUrl } from './urls';
-
-describe('isValidUrl', () => {
-  it('should return true for url', () => {
-    const validUrl = isValidUrl('http://some.valid.url');
-    expect(validUrl).toBe(true);
-  });
-
-  it('should return false for absolute path', () => {
-    const validUrl = isValidUrl('/some/absolute/path');
-    expect(validUrl).toBe(false);
-  });
-
-  it('should return false for relative path', () => {
-    const validUrl = isValidUrl('../some/relative/path');
-    expect(validUrl).toBe(false);
-  });
-});
+export { legacyPlugin, makeLegacyPlugin } from './legacy';
+export type { LegacyCreateRouter } from './legacy';
diff --git a/packages/backend-common/src/legacy.test.ts b/packages/backend-common/src/compat/legacy/legacy.test.ts
similarity index 93%
rename from packages/backend-common/src/legacy.test.ts
rename to packages/backend-common/src/compat/legacy/legacy.test.ts
index 09545daef4..e5d395a8f9 100644
--- a/packages/backend-common/src/legacy.test.ts
+++ b/packages/backend-common/src/compat/legacy/legacy.test.ts
@@ -21,12 +21,12 @@ import {
 import { mockServices, startTestBackend } from '@backstage/backend-test-utils';
 import { EventEmitter } from 'events';
 import { Router } from 'express';
-import { createLegacyAuthAdapters } from './auth';
+import { createLegacyAuthAdapters } from '..';
 import { legacyPlugin } from './legacy';
 // eslint-disable-next-line @backstage/no-relative-monorepo-imports
-import { authServiceFactory } from '../../backend-app-api/src/services/implementations/auth';
+import { authServiceFactory } from '../../../../backend-app-api/src/services/implementations/auth';
 // eslint-disable-next-line @backstage/no-relative-monorepo-imports
-import { tokenManagerServiceFactory } from '../../backend-app-api/src/services/implementations/tokenManager';
+import { tokenManagerServiceFactory } from '../../../../backend-app-api/src/services/implementations/tokenManager';
 
 describe('legacyPlugin', () => {
   it('can auth across the new and old systems', async () => {
diff --git a/packages/backend-common/src/legacy.ts b/packages/backend-common/src/compat/legacy/legacy.ts
similarity index 96%
rename from packages/backend-common/src/legacy.ts
rename to packages/backend-common/src/compat/legacy/legacy.ts
index 420126f519..57220a8430 100644
--- a/packages/backend-common/src/legacy.ts
+++ b/packages/backend-common/src/compat/legacy/legacy.ts
@@ -21,9 +21,9 @@ import {
   ServiceRef,
 } from '@backstage/backend-plugin-api';
 import { RequestHandler } from 'express';
-import { cacheToPluginCacheManager } from './cache';
-import { loggerToWinstonLogger } from './logging';
-import { TokenManager } from './deprecated';
+import { cacheToPluginCacheManager } from '../cache';
+import { loggerToWinstonLogger } from '../logging';
+import { TokenManager } from '../../deprecated';
 
 /**
  * @public
diff --git a/packages/backend-common/src/logging/index.ts b/packages/backend-common/src/compat/logging/index.ts
similarity index 100%
rename from packages/backend-common/src/logging/index.ts
rename to packages/backend-common/src/compat/logging/index.ts
diff --git a/packages/backend-common/src/logging/loggerToWinstonLogger.ts b/packages/backend-common/src/compat/logging/loggerToWinstonLogger.ts
similarity index 100%
rename from packages/backend-common/src/logging/loggerToWinstonLogger.ts
rename to packages/backend-common/src/compat/logging/loggerToWinstonLogger.ts
diff --git a/packages/backend-common/src/config.ts b/packages/backend-common/src/deprecated/config.ts
similarity index 93%
rename from packages/backend-common/src/config.ts
rename to packages/backend-common/src/deprecated/config.ts
index 8e5e8d7be7..2d06ca2072 100644
--- a/packages/backend-common/src/config.ts
+++ b/packages/backend-common/src/deprecated/config.ts
@@ -18,11 +18,11 @@
 import {
   createConfigSecretEnumerator,
   loadBackendConfig as newLoadBackendConfig,
-} from '../../backend-app-api/src/config';
+} from '../../../backend-app-api/src/config';
 import { LoggerService } from '@backstage/backend-plugin-api';
 import { AppConfig, Config } from '@backstage/config';
 import { LoadConfigOptionsRemote } from '@backstage/config-loader';
-import { setRootLoggerRedactionList } from './deprecated/logging/createRootLogger';
+import { setRootLoggerRedactionList } from './logging/createRootLogger';
 
 /**
  * Load configuration for a Backend.
diff --git a/packages/backend-common/src/context/AbortContext.test.ts b/packages/backend-common/src/deprecated/context/AbortContext.test.ts
similarity index 100%
rename from packages/backend-common/src/context/AbortContext.test.ts
rename to packages/backend-common/src/deprecated/context/AbortContext.test.ts
diff --git a/packages/backend-common/src/context/AbortContext.ts b/packages/backend-common/src/deprecated/context/AbortContext.ts
similarity index 100%
rename from packages/backend-common/src/context/AbortContext.ts
rename to packages/backend-common/src/deprecated/context/AbortContext.ts
diff --git a/packages/backend-common/src/context/Contexts.test.ts b/packages/backend-common/src/deprecated/context/Contexts.test.ts
similarity index 100%
rename from packages/backend-common/src/context/Contexts.test.ts
rename to packages/backend-common/src/deprecated/context/Contexts.test.ts
diff --git a/packages/backend-common/src/context/Contexts.ts b/packages/backend-common/src/deprecated/context/Contexts.ts
similarity index 100%
rename from packages/backend-common/src/context/Contexts.ts
rename to packages/backend-common/src/deprecated/context/Contexts.ts
diff --git a/packages/backend-common/src/context/RootContext.test.ts b/packages/backend-common/src/deprecated/context/RootContext.test.ts
similarity index 100%
rename from packages/backend-common/src/context/RootContext.test.ts
rename to packages/backend-common/src/deprecated/context/RootContext.test.ts
diff --git a/packages/backend-common/src/context/RootContext.ts b/packages/backend-common/src/deprecated/context/RootContext.ts
similarity index 100%
rename from packages/backend-common/src/context/RootContext.ts
rename to packages/backend-common/src/deprecated/context/RootContext.ts
diff --git a/packages/backend-common/src/context/ValueContext.test.ts b/packages/backend-common/src/deprecated/context/ValueContext.test.ts
similarity index 100%
rename from packages/backend-common/src/context/ValueContext.test.ts
rename to packages/backend-common/src/deprecated/context/ValueContext.test.ts
diff --git a/packages/backend-common/src/context/ValueContext.ts b/packages/backend-common/src/deprecated/context/ValueContext.ts
similarity index 100%
rename from packages/backend-common/src/context/ValueContext.ts
rename to packages/backend-common/src/deprecated/context/ValueContext.ts
diff --git a/packages/backend-common/src/context/index.ts b/packages/backend-common/src/deprecated/context/index.ts
similarity index 100%
rename from packages/backend-common/src/context/index.ts
rename to packages/backend-common/src/deprecated/context/index.ts
diff --git a/packages/backend-common/src/context/types.ts b/packages/backend-common/src/deprecated/context/types.ts
similarity index 100%
rename from packages/backend-common/src/context/types.ts
rename to packages/backend-common/src/deprecated/context/types.ts
diff --git a/packages/backend-common/src/hot.ts b/packages/backend-common/src/deprecated/hot.ts
similarity index 100%
rename from packages/backend-common/src/hot.ts
rename to packages/backend-common/src/deprecated/hot.ts
diff --git a/packages/backend-common/src/deprecated/index.ts b/packages/backend-common/src/deprecated/index.ts
index b021e0ba6d..ba8b8e7db2 100644
--- a/packages/backend-common/src/deprecated/index.ts
+++ b/packages/backend-common/src/deprecated/index.ts
@@ -99,6 +99,8 @@ import {
   UrlReaderService as _UrlReaderService,
 } from '@backstage/backend-plugin-api';
 
+export * from './hot';
+export * from './config';
 export * from './scm';
 export * from './tokens';
 export * from './logging';
diff --git a/packages/backend-common/src/deprecated/service/lib/ServiceBuilderImpl.ts b/packages/backend-common/src/deprecated/service/lib/ServiceBuilderImpl.ts
index 1586d7c5c6..9b5891a5bf 100644
--- a/packages/backend-common/src/deprecated/service/lib/ServiceBuilderImpl.ts
+++ b/packages/backend-common/src/deprecated/service/lib/ServiceBuilderImpl.ts
@@ -22,7 +22,7 @@ import helmet, { HelmetOptions } from 'helmet';
 import { ContentSecurityPolicyOptions } from 'helmet/dist/types/middlewares/content-security-policy';
 import * as http from 'http';
 import { LoggerService } from '@backstage/backend-plugin-api';
-import { useHotCleanup } from '../../../hot';
+import { useHotCleanup } from '../../hot';
 import { getRootLogger } from '../../logging';
 import {
   errorHandler as defaultErrorHandler,
diff --git a/packages/backend-common/src/index.ts b/packages/backend-common/src/index.ts
index b6e53810eb..cb5e236888 100644
--- a/packages/backend-common/src/index.ts
+++ b/packages/backend-common/src/index.ts
@@ -20,13 +20,7 @@
  * @packageDocumentation
  */
 
-export { legacyPlugin, makeLegacyPlugin } from './legacy';
-export type { LegacyCreateRouter } from './legacy';
-export { loadBackendConfig } from './config';
 export * from './deprecated';
-export * from './auth';
-export * from './cache';
-export * from './hot';
-export * from './logging';
+export * from './compat';
 export * from './middleware';
 export * from './service';