diff --git a/package.json b/package.json
index 78245b974c08e8..859b71d5a8a50b 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "postinstall": "simple-git-hooks",
     "format": "prettier --write --cache .",
     "lint": "eslint --cache .",
-    "typecheck": "tsc -p scripts --noEmit && tsc -p playground --noEmit",
+    "typecheck": "tsc -p scripts --noEmit && pnpm -r --parallel run typecheck",
     "test": "run-s test-unit test-serve test-build",
     "test-serve": "vitest run -c vitest.config.e2e.ts",
     "test-build": "VITE_TEST_BUILD=1 vitest run -c vitest.config.e2e.ts",
@@ -81,7 +81,6 @@
     "resolve": "^1.22.1",
     "rimraf": "^3.0.2",
     "rollup": "^3.7.0",
-    "rollup-plugin-license": "^3.0.1",
     "semver": "^7.3.8",
     "simple-git-hooks": "^2.8.1",
     "tslib": "^2.4.1",
diff --git a/packages/create-vite/__tests__/cli.spec.ts b/packages/create-vite/__tests__/cli.spec.ts
index 35239f2707c2c3..6f47f6e25aaa66 100644
--- a/packages/create-vite/__tests__/cli.spec.ts
+++ b/packages/create-vite/__tests__/cli.spec.ts
@@ -36,7 +36,7 @@ beforeAll(() => remove(genPath))
 afterEach(() => remove(genPath))
 
 test('prompts for the project name if none supplied', () => {
-  const { stdout, exitCode } = run([])
+  const { stdout } = run([])
   expect(stdout).toContain('Project name:')
 })
 
diff --git a/packages/create-vite/build.config.ts b/packages/create-vite/build.config.ts
index 3ec4f99bab2213..435c39bc937a6a 100644
--- a/packages/create-vite/build.config.ts
+++ b/packages/create-vite/build.config.ts
@@ -1,7 +1,7 @@
 import path from 'node:path'
 import url from 'node:url'
 import { defineBuildConfig } from 'unbuild'
-import licensePlugin from '../../scripts/rollupLicensePlugin.mjs'
+import licensePlugin from '../vite/rollupLicensePlugin'
 
 const __dirname = path.dirname(url.fileURLToPath(import.meta.url))
 
@@ -20,16 +20,14 @@ export default defineBuildConfig({
   },
   hooks: {
     'rollup:options'(ctx, options) {
-      if (!options.plugins) {
-        options.plugins = []
-      }
-      options.plugins.push(
+      options.plugins = [
+        options.plugins,
         licensePlugin(
           path.resolve(__dirname, './LICENSE'),
           'create-vite license',
           'create-vite',
         ),
-      )
+      ]
     },
   },
 })
diff --git a/packages/create-vite/package.json b/packages/create-vite/package.json
index 63d1581acabd68..2e971c5d44496d 100644
--- a/packages/create-vite/package.json
+++ b/packages/create-vite/package.json
@@ -17,6 +17,7 @@
   "scripts": {
     "dev": "unbuild --stub",
     "build": "unbuild",
+    "typecheck": "tsc --noEmit",
     "prepublishOnly": "npm run build"
   },
   "engines": {
diff --git a/packages/create-vite/tsconfig.json b/packages/create-vite/tsconfig.json
index 0ec39bdf6a1404..3a66e6179b5f97 100644
--- a/packages/create-vite/tsconfig.json
+++ b/packages/create-vite/tsconfig.json
@@ -1,11 +1,12 @@
 {
-  "include": ["src", "__tests__"],
+  "include": ["build.config.ts", "src", "__tests__"],
   "compilerOptions": {
     "outDir": "dist",
     "target": "ES2020",
     "module": "ES2020",
     "moduleResolution": "Node",
     "strict": true,
+    "skipLibCheck": true,
     "declaration": false,
     "sourceMap": false,
     "noUnusedLocals": true,
diff --git a/packages/vite/package.json b/packages/vite/package.json
index ed92ab8314862f..a9e6a6bfb5e15d 100644
--- a/packages/vite/package.json
+++ b/packages/vite/package.json
@@ -52,6 +52,7 @@
     "build-types-roll": "api-extractor run && rimraf temp",
     "build-types-post-patch": "tsx scripts/postPatchTypes.ts",
     "build-types-check": "tsx scripts/checkBuiltTypes.ts && tsc --project tsconfig.check.json",
+    "typecheck": "tsc --noEmit",
     "lint": "eslint --cache --ext .ts src/**",
     "format": "prettier --write --cache --parser typescript \"src/**/*.ts\"",
     "prepublishOnly": "npm run build"
@@ -111,6 +112,7 @@
     "postcss-load-config": "^4.0.1",
     "postcss-modules": "^6.0.0",
     "resolve.exports": "^1.1.0",
+    "rollup-plugin-license": "^3.0.1",
     "sirv": "^2.0.2",
     "source-map-js": "^1.0.2",
     "source-map-support": "^0.5.21",
diff --git a/packages/vite/rollup.config.ts b/packages/vite/rollup.config.ts
index 80b00b80822ac4..8c59ac28f26799 100644
--- a/packages/vite/rollup.config.ts
+++ b/packages/vite/rollup.config.ts
@@ -8,7 +8,7 @@ import json from '@rollup/plugin-json'
 import MagicString from 'magic-string'
 import type { Plugin, RollupOptions } from 'rollup'
 import { defineConfig } from 'rollup'
-import licensePlugin from '../../scripts/rollupLicensePlugin.mjs'
+import licensePlugin from './rollupLicensePlugin'
 
 const pkg = JSON.parse(
   readFileSync(new URL('./package.json', import.meta.url)).toString(),
@@ -78,7 +78,7 @@ function createNodePlugins(
   isProduction: boolean,
   sourceMap: boolean,
   declarationDir: string | false,
-): Plugin[] {
+): (Plugin | false)[] {
   return [
     nodeResolve({ preferBuiltins: true }),
     typescript({
@@ -284,7 +284,7 @@ const __require = require;
       if (!chunk.fileName.includes('chunks/dep-')) return
 
       const match = code.match(/^(?:import[\s\S]*?;\s*)+/)
-      const index = match ? match.index + match[0].length : 0
+      const index = match ? match.index! + match[0].length : 0
       const s = new MagicString(code)
       // inject after the last `import`
       s.appendRight(index, cjsPatch)
diff --git a/scripts/rollupLicensePlugin.mjs b/packages/vite/rollupLicensePlugin.ts
similarity index 84%
rename from scripts/rollupLicensePlugin.mjs
rename to packages/vite/rollupLicensePlugin.ts
index 3d527afb0129f7..f1d24f4b7c8e82 100644
--- a/scripts/rollupLicensePlugin.mjs
+++ b/packages/vite/rollupLicensePlugin.ts
@@ -1,28 +1,26 @@
-// @ts-check
-
 import fs from 'node:fs'
 import path from 'node:path'
 import license from 'rollup-plugin-license'
 import colors from 'picocolors'
 import fg from 'fast-glob'
 import resolve from 'resolve'
+import type { Plugin } from 'rollup'
 
-/**
- * @param {string} licenseFilePath
- * @param {string} licenseTitle
- * @param {string} packageName
- */
-function licensePlugin(licenseFilePath, licenseTitle, packageName) {
+export default function licensePlugin(
+  licenseFilePath: string,
+  licenseTitle: string,
+  packageName: string,
+): Plugin {
   return license({
     thirdParty(dependencies) {
       // https://github.com/rollup/rollup/blob/master/build-plugins/generate-license-file.js
       // MIT Licensed https://github.com/rollup/rollup/blob/master/LICENSE-CORE.md
       const coreLicense = fs.readFileSync(
-        new URL('../LICENSE', import.meta.url),
+        new URL('../../LICENSE', import.meta.url),
       )
-      function sortLicenses(licenses) {
-        let withParenthesis = []
-        let noParenthesis = []
+      function sortLicenses(licenses: Set<string>) {
+        let withParenthesis: string[] = []
+        let noParenthesis: string[] = []
         licenses.forEach((license) => {
           if (/^\(/.test(license)) {
             withParenthesis.push(license)
@@ -34,12 +32,10 @@ function licensePlugin(licenseFilePath, licenseTitle, packageName) {
         noParenthesis = noParenthesis.sort()
         return [...noParenthesis, ...withParenthesis]
       }
-      const licenses = new Set()
+      const licenses = new Set<string>()
       const dependencyLicenseTexts = dependencies
-        .sort(({ name: _nameA }, { name: _nameB }) => {
-          const nameA = /** @type {string} */ (_nameA)
-          const nameB = /** @type {string} */ (_nameB)
-          return nameA > nameB ? 1 : nameB > nameA ? -1 : 0
+        .sort(({ name: nameA }, { name: nameB }) => {
+          return nameA! > nameB! ? 1 : nameB! > nameA! ? -1 : 0
         })
         .map(
           ({
@@ -96,7 +92,7 @@ function licensePlugin(licenseFilePath, licenseTitle, packageName) {
                   .join('\n') +
                 '\n'
             }
-            licenses.add(license)
+            licenses.add(license!)
             return text
           },
         )
@@ -122,5 +118,3 @@ function licensePlugin(licenseFilePath, licenseTitle, packageName) {
     },
   })
 }
-
-export default licensePlugin
diff --git a/packages/vite/scripts/tsconfig.json b/packages/vite/scripts/tsconfig.json
deleted file mode 100644
index af11a209690527..00000000000000
--- a/packages/vite/scripts/tsconfig.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "extends": "../tsconfig.base.json",
-  "compilerOptions": {
-    "module": "esnext"
-  }
-}
diff --git a/packages/vite/src/node/__tests__/build.spec.ts b/packages/vite/src/node/__tests__/build.spec.ts
index a77ef0d67b410b..4e65a2848602d3 100644
--- a/packages/vite/src/node/__tests__/build.spec.ts
+++ b/packages/vite/src/node/__tests__/build.spec.ts
@@ -421,7 +421,7 @@ describe('resolveBuildOutputs', () => {
   })
 
   test('array outputs: should ignore build.lib.formats', () => {
-    const log = { warn: vi.fn() } as Logger
+    const log = { warn: vi.fn() } as unknown as Logger
     expect(
       resolveBuildOutputs(
         [{ name: 'A' }],
diff --git a/packages/vite/src/node/__tests__/plugins/define.spec.ts b/packages/vite/src/node/__tests__/plugins/define.spec.ts
index b1634ef9adcd1a..b85ccaf70575c0 100644
--- a/packages/vite/src/node/__tests__/plugins/define.spec.ts
+++ b/packages/vite/src/node/__tests__/plugins/define.spec.ts
@@ -10,7 +10,9 @@ async function createDefinePluginTransform(
   const config = await resolveConfig({ define }, build ? 'build' : 'serve')
   const instance = definePlugin(config)
   return async (code: string) => {
-    const result = await instance.transform.call({}, code, 'foo.ts', { ssr })
+    const result = await (instance.transform as any).call({}, code, 'foo.ts', {
+      ssr,
+    })
     return result?.code || result
   }
 }
diff --git a/packages/vite/src/node/__tests__/scan.spec.ts b/packages/vite/src/node/__tests__/scan.spec.ts
index 0a417f37a49b0a..b461f447e609d7 100644
--- a/packages/vite/src/node/__tests__/scan.spec.ts
+++ b/packages/vite/src/node/__tests__/scan.spec.ts
@@ -15,14 +15,14 @@ describe('optimizer-scan:script-test', () => {
     scriptRE.lastIndex = 0
     const [, tsOpenTag, tsContent] = scriptRE.exec(
       `<script lang="ts">${scriptContent}</script>`,
-    )
+    )!
     expect(tsOpenTag).toEqual('<script lang="ts">')
     expect(tsContent).toEqual(scriptContent)
 
     scriptRE.lastIndex = 0
     const [, openTag, content] = scriptRE.exec(
       `<script>${scriptContent}</script>`,
-    )
+    )!
     expect(openTag).toEqual('<script>')
     expect(content).toEqual(scriptContent)
   })
@@ -58,12 +58,16 @@ describe('optimizer-scan:script-test', () => {
 
   test('ordinary script tag test', () => {
     scriptRE.lastIndex = 0
-    const [, tag, content] = scriptRE.exec(`<script  >var test = null</script>`)
+    const [, tag, content] = scriptRE.exec(
+      `<script  >var test = null</script>`,
+    )!
     expect(tag).toEqual('<script  >')
     expect(content).toEqual('var test = null')
 
     scriptRE.lastIndex = 0
-    const [, tag1, content1] = scriptRE.exec(`<script>var test = null</script>`)
+    const [, tag1, content1] = scriptRE.exec(
+      `<script>var test = null</script>`,
+    )!
     expect(tag1).toEqual('<script>')
     expect(content1).toEqual('var test = null')
   })
@@ -90,7 +94,7 @@ describe('optimizer-scan:script-test', () => {
 
     shouldMatchArray.forEach((str) => {
       importsRE.lastIndex = 0
-      expect(importsRE.exec(str)[1]).toEqual("'vue'")
+      expect(importsRE.exec(str)![1]).toEqual("'vue'")
     })
 
     const shouldFailArray = [
diff --git a/packages/vite/tsconfig.json b/packages/vite/tsconfig.json
index 930b4b2776c594..a2dbcaf01f6cc3 100644
--- a/packages/vite/tsconfig.json
+++ b/packages/vite/tsconfig.json
@@ -1,9 +1,14 @@
 {
   "extends": "./tsconfig.base.json",
+  "include": [
+    "./rollup.config.ts",
+    "scripts",
+    "src/node/__tests__",
+    "src/types/shims.d.ts"
+  ],
   "compilerOptions": {
-    "strict": false,
+    "esModuleInterop": true,
     "declaration": false,
     "resolveJsonModule": true
-  },
-  "include": ["./rollup.config.ts"]
+  }
 }
diff --git a/playground/package.json b/playground/package.json
index 72412c12552a30..dd9440207f6739 100644
--- a/playground/package.json
+++ b/playground/package.json
@@ -2,6 +2,9 @@
   "name": "@vitejs/vite-playground",
   "private": true,
   "version": "1.0.0",
+  "scripts": {
+    "typecheck": "tsc --noEmit"
+  },
   "devDependencies": {
     "convert-source-map": "^2.0.0",
     "css-color-names": "^1.0.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index dc0303db23d5e3..7eaac2c8d05c04 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -62,7 +62,6 @@ importers:
       resolve: ^1.22.1
       rimraf: ^3.0.2
       rollup: ^3.7.0
-      rollup-plugin-license: ^3.0.1
       semver: ^7.3.8
       simple-git-hooks: ^2.8.1
       tslib: ^2.4.1
@@ -119,7 +118,6 @@ importers:
       resolve: 1.22.1
       rimraf: 3.0.2
       rollup: 3.7.0
-      rollup-plugin-license: 3.0.1_rollup@3.7.0
       semver: 7.3.8
       simple-git-hooks: 2.8.1
       tslib: 2.4.1
@@ -215,6 +213,7 @@ importers:
       resolve: ^1.22.1
       resolve.exports: ^1.1.0
       rollup: ^3.7.0
+      rollup-plugin-license: ^3.0.1
       sirv: ^2.0.2
       source-map-js: ^1.0.2
       source-map-support: ^0.5.21
@@ -277,6 +276,7 @@ importers:
       postcss-load-config: 4.0.1_postcss@8.4.20
       postcss-modules: 6.0.0_postcss@8.4.20
       resolve.exports: 1.1.0
+      rollup-plugin-license: 3.0.1_rollup@3.7.0
       sirv: 2.0.2_w6q35pvk7bmykgqf2hieut43iq
       source-map-js: 1.0.2
       source-map-support: 0.5.21