diff --git a/packages/angular/build/src/builders/dev-server/tests/options/proxy-config_spec.ts b/packages/angular/build/src/builders/dev-server/tests/options/proxy-config_spec.ts
index 31ea54fc4004..092bb50dcbae 100644
--- a/packages/angular/build/src/builders/dev-server/tests/options/proxy-config_spec.ts
+++ b/packages/angular/build/src/builders/dev-server/tests/options/proxy-config_spec.ts
@@ -402,7 +402,7 @@ async function createProxyServer(body = 'TEST_API_RETURN') {
   await new Promise<void>((resolve) => proxyServer.listen(0, '127.0.0.1', resolve));
 
   return {
-    address: proxyServer.address() as import('net').AddressInfo,
+    address: proxyServer.address() as import('node:net').AddressInfo,
     close: () => new Promise<void>((resolve) => proxyServer.close(() => resolve())),
   };
 }
diff --git a/packages/angular/cli/bin/ng.js b/packages/angular/cli/bin/ng.js
index d503fb895f5f..b1725997ec54 100755
--- a/packages/angular/cli/bin/ng.js
+++ b/packages/angular/cli/bin/ng.js
@@ -11,7 +11,7 @@
 /* eslint-disable import/no-unassigned-import */
 'use strict';
 
-const path = require('path');
+const path = require('node:path');
 const nodeUtils = require('./version');
 
 // Error if the external CLI appears to be used inside a google3 context.
diff --git a/packages/angular/cli/src/commands/mcp/devserver.ts b/packages/angular/cli/src/commands/mcp/devserver.ts
index 1a667afed6c9..6cf310bc6945 100644
--- a/packages/angular/cli/src/commands/mcp/devserver.ts
+++ b/packages/angular/cli/src/commands/mcp/devserver.ts
@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import type { ChildProcess } from 'child_process';
+import type { ChildProcess } from 'node:child_process';
 import { type Host, processStreamLines } from './host';
 
 // Log messages that we want to catch to identify the build status.
diff --git a/packages/angular/cli/src/commands/mcp/host.ts b/packages/angular/cli/src/commands/mcp/host.ts
index 0ec914727e41..6f3313640510 100644
--- a/packages/angular/cli/src/commands/mcp/host.ts
+++ b/packages/angular/cli/src/commands/mcp/host.ts
@@ -13,9 +13,8 @@
  * test-specific implementations.
  */
 
-import { existsSync as nodeExistsSync } from 'fs';
 import { ChildProcess, spawn } from 'node:child_process';
-import { Stats, realpathSync } from 'node:fs';
+import { Stats, existsSync as nodeExistsSync, realpathSync } from 'node:fs';
 import { glob as nodeGlob, readFile as nodeReadFile, stat } from 'node:fs/promises';
 import { createRequire } from 'node:module';
 import { createServer } from 'node:net';
diff --git a/packages/angular/cli/src/commands/mcp/host_spec.ts b/packages/angular/cli/src/commands/mcp/host_spec.ts
index 2b2d3d9ea60a..f04f712ed0fa 100644
--- a/packages/angular/cli/src/commands/mcp/host_spec.ts
+++ b/packages/angular/cli/src/commands/mcp/host_spec.ts
@@ -6,8 +6,8 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
+import assert from 'node:assert';
 import { mkdtempSync, rmSync, writeFileSync } from 'node:fs';
-import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import { LocalWorkspaceHost, createRootRestrictedHost } from './host';
 
@@ -17,9 +17,11 @@ describe('createRootRestrictedHost', () => {
   let outsideDir: string;
 
   beforeEach(() => {
-    root1 = mkdtempSync(join(tmpdir(), 'angular-cli-mcp-root1-'));
-    root2 = mkdtempSync(join(tmpdir(), 'angular-cli-mcp-root2-'));
-    outsideDir = mkdtempSync(join(tmpdir(), 'angular-cli-mcp-outside-'));
+    const baseTmpDir = process.env['TEST_TMPDIR'];
+    assert(baseTmpDir, 'TEST_TMPDIR is not set');
+    root1 = mkdtempSync(join(baseTmpDir, 'angular-cli-mcp-root1-'));
+    root2 = mkdtempSync(join(baseTmpDir, 'angular-cli-mcp-root2-'));
+    outsideDir = mkdtempSync(join(baseTmpDir, 'angular-cli-mcp-outside-'));
 
     writeFileSync(join(root1, 'file1.txt'), 'root 1 content');
     writeFileSync(join(root2, 'file2.txt'), 'root 2 content');
diff --git a/packages/angular/cli/src/commands/mcp/tools/devserver/devserver_spec.ts b/packages/angular/cli/src/commands/mcp/tools/devserver/devserver_spec.ts
index 735e82302a94..ddefccd54633 100644
--- a/packages/angular/cli/src/commands/mcp/tools/devserver/devserver_spec.ts
+++ b/packages/angular/cli/src/commands/mcp/tools/devserver/devserver_spec.ts
@@ -6,8 +6,8 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import { EventEmitter } from 'events';
 import type { ChildProcess } from 'node:child_process';
+import { EventEmitter } from 'node:events';
 import type { MockHost } from '../../testing/mock-host';
 import {
   MockMcpToolContext,
diff --git a/packages/angular/cli/src/commands/mcp/tools/projects_spec.ts b/packages/angular/cli/src/commands/mcp/tools/projects_spec.ts
index 9c5e2d7d08f8..8ed77e673466 100644
--- a/packages/angular/cli/src/commands/mcp/tools/projects_spec.ts
+++ b/packages/angular/cli/src/commands/mcp/tools/projects_spec.ts
@@ -7,8 +7,8 @@
  */
 
 import { workspaces } from '@angular-devkit/core';
+import assert from 'node:assert';
 import { mkdirSync, mkdtempSync, rmSync, writeFileSync } from 'node:fs';
-import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import { pathToFileURL } from 'node:url';
 import { AngularWorkspace } from '../../../utilities/config';
@@ -23,7 +23,9 @@ describe('List Projects Tool', () => {
   let workspaceDir: string;
 
   beforeEach(() => {
-    tempDir = mkdtempSync(join(tmpdir(), 'mcp-projects-tool-'));
+    const baseTmpDir = process.env['TEST_TMPDIR'];
+    assert(baseTmpDir, 'TEST_TMPDIR is not set');
+    tempDir = mkdtempSync(join(baseTmpDir, 'mcp-projects-tool-'));
     allowedRoot = join(tempDir, 'allowed-root');
     workspaceDir = join(allowedRoot, 'workspace');
     mkdirSync(workspaceDir, { recursive: true });
diff --git a/packages/angular/cli/src/commands/mcp/workspace-utils_spec.ts b/packages/angular/cli/src/commands/mcp/workspace-utils_spec.ts
index a000dd01da34..4de7d0748353 100644
--- a/packages/angular/cli/src/commands/mcp/workspace-utils_spec.ts
+++ b/packages/angular/cli/src/commands/mcp/workspace-utils_spec.ts
@@ -7,8 +7,8 @@
  */
 
 import { workspaces } from '@angular-devkit/core';
+import assert from 'node:assert';
 import { mkdirSync, mkdtempSync, rmSync, writeFileSync } from 'node:fs';
-import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import { pathToFileURL } from 'node:url';
 import { AngularWorkspace } from '../../utilities/config';
@@ -114,7 +114,9 @@ describe('MCP Workspace Utils', () => {
     beforeEach(() => {
       mockHost = createMockHost();
       spyOn(process, 'cwd').and.returnValue(cwd);
-      tempDir = mkdtempSync(join(tmpdir(), 'mcp-workspace-utils-'));
+      const baseTmpDir = process.env['TEST_TMPDIR'];
+      assert(baseTmpDir, 'TEST_TMPDIR is not set');
+      tempDir = mkdtempSync(join(baseTmpDir, 'mcp-workspace-utils-'));
       allowedRoot = join(tempDir, 'allowed-root');
       allowedWorkspace = join(allowedRoot, 'workspace');
       outsideWorkspace = join(tempDir, 'outside-workspace');
diff --git a/packages/angular/cli/src/commands/update/cli_spec.ts b/packages/angular/cli/src/commands/update/cli_spec.ts
index bae00d3dba24..f693c4005815 100644
--- a/packages/angular/cli/src/commands/update/cli_spec.ts
+++ b/packages/angular/cli/src/commands/update/cli_spec.ts
@@ -8,7 +8,7 @@
 
 import assert from 'node:assert';
 import { mkdir, mkdtemp, rm, writeFile } from 'node:fs/promises';
-import path from 'path';
+import path from 'node:path';
 import { resolveFallbackMigrations } from './cli';
 import type { PackageVersionInfo, UpdatePlan } from './update-resolver';
 
diff --git a/packages/angular/cli/src/commands/update/update-resolver_spec.ts b/packages/angular/cli/src/commands/update/update-resolver_spec.ts
index 9ced5829587e..a5074ea1bfec 100644
--- a/packages/angular/cli/src/commands/update/update-resolver_spec.ts
+++ b/packages/angular/cli/src/commands/update/update-resolver_spec.ts
@@ -7,8 +7,8 @@
  */
 
 import { logging } from '@angular-devkit/core';
+import assert from 'node:assert';
 import { mkdirSync, mkdtempSync, readFileSync, rmSync, writeFileSync } from 'node:fs';
-import { tmpdir } from 'node:os';
 import * as path from 'node:path';
 import * as semver from 'semver';
 import type { PackageManager, PackageManifest, PackageMetadata } from '../../package-managers';
@@ -43,7 +43,9 @@ describe('UpdateResolver', () => {
   const logger = new logging.NullLogger();
 
   beforeEach(() => {
-    tempRoot = mkdtempSync(path.join(tmpdir(), 'angular-cli-update-resolver-test-'));
+    const baseTmpDir = process.env['TEST_TMPDIR'];
+    assert(baseTmpDir, 'TEST_TMPDIR is not set');
+    tempRoot = mkdtempSync(path.join(baseTmpDir, 'angular-cli-update-resolver-test-'));
   });
 
   afterEach(() => {
diff --git a/packages/angular/ssr/package.json b/packages/angular/ssr/package.json
index 2acc5f8babbd..01bc125458df 100644
--- a/packages/angular/ssr/package.json
+++ b/packages/angular/ssr/package.json
@@ -38,12 +38,6 @@
   },
   "devDependencies": {
     "@angular-devkit/schematics": "workspace:*",
-    "@angular/common": "22.3.0-next.3",
-    "@angular/compiler": "22.3.0-next.3",
-    "@angular/core": "22.3.0-next.3",
-    "@angular/platform-browser": "22.3.0-next.3",
-    "@angular/platform-server": "22.3.0-next.3",
-    "@angular/router": "22.3.0-next.3",
     "@schematics/angular": "workspace:*"
   },
   "sideEffects": false,
diff --git a/packages/angular_devkit/build_angular/package.json b/packages/angular_devkit/build_angular/package.json
index cac45bc3309f..1454863ca837 100644
--- a/packages/angular_devkit/build_angular/package.json
+++ b/packages/angular_devkit/build_angular/package.json
@@ -66,8 +66,7 @@
     "@angular/ssr": "workspace:*",
     "browser-sync": "3.0.4",
     "ng-packagr": "22.3.0-next.2",
-    "sass": "1.106.1",
-    "undici": "8.12.3"
+    "sass": "1.106.1"
   },
   "peerDependencies": {
     "@angular/compiler-cli": "0.0.0-ANGULAR-FW-PEER-DEP",
diff --git a/packages/angular_devkit/build_angular/src/builders/dev-server/tests/options/proxy-config_spec.ts b/packages/angular_devkit/build_angular/src/builders/dev-server/tests/options/proxy-config_spec.ts
index 644edbea2d8a..968c1542e523 100644
--- a/packages/angular_devkit/build_angular/src/builders/dev-server/tests/options/proxy-config_spec.ts
+++ b/packages/angular_devkit/build_angular/src/builders/dev-server/tests/options/proxy-config_spec.ts
@@ -267,7 +267,7 @@ async function createProxyServer() {
   await new Promise<void>((resolve) => proxyServer.listen(0, '127.0.0.1', resolve));
 
   return {
-    address: proxyServer.address() as import('net').AddressInfo,
+    address: proxyServer.address() as import('node:net').AddressInfo,
     close: () => new Promise<void>((resolve) => proxyServer.close(() => resolve())),
   };
 }
diff --git a/packages/angular_devkit/build_angular/src/builders/ssr-dev-server/specs/proxy_spec.ts b/packages/angular_devkit/build_angular/src/builders/ssr-dev-server/specs/proxy_spec.ts
index 5539501222a6..339e8004f969 100644
--- a/packages/angular_devkit/build_angular/src/builders/ssr-dev-server/specs/proxy_spec.ts
+++ b/packages/angular_devkit/build_angular/src/builders/ssr-dev-server/specs/proxy_spec.ts
@@ -91,7 +91,7 @@ describe('Serve SSR Builder - Proxy', () => {
 
     try {
       await new Promise<void>((resolve) => proxyServer.listen(0, '127.0.0.1', resolve));
-      const proxyAddress = proxyServer.address() as import('net').AddressInfo;
+      const proxyAddress = proxyServer.address() as import('node:net').AddressInfo;
 
       host.writeMultipleFiles({
         'proxy.config.json': `{ "/api/*": { "logLevel": "debug","target": "http://127.0.0.1:${proxyAddress.port}" } }`,
diff --git a/packages/ngtools/webpack/package.json b/packages/ngtools/webpack/package.json
index 8c17f0eafe68..2c4444be2267 100644
--- a/packages/ngtools/webpack/package.json
+++ b/packages/ngtools/webpack/package.json
@@ -17,9 +17,6 @@
   },
   "devDependencies": {
     "@angular-devkit/core": "workspace:0.0.0-PLACEHOLDER",
-    "@angular/compiler": "22.3.0-next.3",
-    "@angular/compiler-cli": "22.3.0-next.3",
-    "typescript": "6.0.3",
     "webpack": "5.112.2"
   }
 }
diff --git a/packages/schematics/angular/migrations/migrate-karma-to-vitest/migration.ts b/packages/schematics/angular/migrations/migrate-karma-to-vitest/migration.ts
index fc5b11fb5eb0..022eff5069d4 100644
--- a/packages/schematics/angular/migrations/migrate-karma-to-vitest/migration.ts
+++ b/packages/schematics/angular/migrations/migrate-karma-to-vitest/migration.ts
@@ -9,7 +9,7 @@
 import type { json } from '@angular-devkit/core';
 import { Rule, SchematicContext, Tree, chain } from '@angular-devkit/schematics';
 import { join } from 'node:path/posix';
-import { isDeepStrictEqual } from 'util';
+import { isDeepStrictEqual } from 'node:util';
 import { DependencyType, ExistingBehavior, addDependency } from '../../utility/dependency';
 import { JSONFile } from '../../utility/json-file';
 import { latestVersions } from '../../utility/latest-versions';
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 0ba2911c3048..72c4787c7668 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -672,24 +672,6 @@ importers:
       '@angular-devkit/schematics':
         specifier: workspace:*
         version: link:../../angular_devkit/schematics
-      '@angular/common':
-        specifier: 22.3.0-next.3
-        version: 22.3.0-next.3(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3))(rxjs@7.8.2)
-      '@angular/compiler':
-        specifier: 22.3.0-next.3
-        version: 22.3.0-next.3
-      '@angular/core':
-        specifier: 22.3.0-next.3
-        version: 22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3)
-      '@angular/platform-browser':
-        specifier: 22.3.0-next.3
-        version: 22.3.0-next.3(@angular/animations@22.3.0-next.3(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3)))(@angular/common@22.3.0-next.3(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3))(rxjs@7.8.2))(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3))
-      '@angular/platform-server':
-        specifier: 22.3.0-next.3
-        version: 22.3.0-next.3(@angular/common@22.3.0-next.3(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3))(rxjs@7.8.2))(@angular/compiler@22.3.0-next.3)(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3))(@angular/platform-browser@22.3.0-next.3(@angular/animations@22.3.0-next.3(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3)))(@angular/common@22.3.0-next.3(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3))(rxjs@7.8.2))(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3)))(rxjs@7.8.2)
-      '@angular/router':
-        specifier: 22.3.0-next.3
-        version: 22.3.0-next.3(@angular/common@22.3.0-next.3(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3))(rxjs@7.8.2))(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3))(@angular/platform-browser@22.3.0-next.3(@angular/animations@22.3.0-next.3(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3)))(@angular/common@22.3.0-next.3(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3))(rxjs@7.8.2))(@angular/core@22.3.0-next.3(@angular/compiler@22.3.0-next.3)(rxjs@7.8.2)(zone.js@0.16.3)))(rxjs@7.8.2)
       '@schematics/angular':
         specifier: workspace:*
         version: link:../../schematics/angular
@@ -874,9 +856,6 @@ importers:
       sass:
         specifier: 1.106.1
         version: 1.106.1
-      undici:
-        specifier: 8.12.3
-        version: 8.12.3
     optionalDependencies:
       esbuild:
         specifier: 0.28.2
@@ -964,15 +943,6 @@ importers:
       '@angular-devkit/core':
         specifier: workspace:0.0.0-PLACEHOLDER
         version: link:../../angular_devkit/core
-      '@angular/compiler':
-        specifier: 22.3.0-next.3
-        version: 22.3.0-next.3
-      '@angular/compiler-cli':
-        specifier: 22.3.0-next.3
-        version: 22.3.0-next.3(@angular/compiler@22.3.0-next.3)(typescript@6.0.3)
-      typescript:
-        specifier: 6.0.3
-        version: 6.0.3
       webpack:
         specifier: 5.112.2
         version: 5.112.2(esbuild@0.28.2)(lightningcss@1.33.0)(postcss@8.5.32)(uglify-js@3.19.3)