Fixed it perhaps again?

packages/twoslash-svelte/build.config.ts

@@ -1,5 +1,3 @@
-import { copyFileSync, mkdirSync } from 'node:fs'
-import { dirname, resolve } from 'node:path'
 import { defineBuildConfig } from 'unbuild'
 
 export default defineBuildConfig({
@@ -11,30 +9,4 @@ export default defineBuildConfig({
   rollup: {
     emitCJS: true,
   },
-  hooks: {
-    'build:done': () => {
-      const typeFiles = [
-        'svelte-jsx.d.ts',
-        'svelte-jsx-v4.d.ts',
-        'svelte-shims.d.ts',
-        'svelte-shims-v4.d.ts',
-      ]
-      const svelte2tsxPath = dirname(require.resolve('svelte2tsx/svelte-jsx.d.ts'))
-      // eslint-disable-next-line node/prefer-global/process
-      const destPath = resolve(process.cwd(), 'dist/types')
-      mkdirSync(destPath, { recursive: true })
-      typeFiles.forEach((file) => {
-        const sourcePath = resolve(svelte2tsxPath, file)
-        const destFilePath = resolve(destPath, file)
-
-        try {
-          copyFileSync(sourcePath, destFilePath)
-          console.log(`Copied ${file} to dist/types`)
-        }
-        catch (error) {
-          console.error(`Failed to copy ${file}:`, error)
-        }
-      })
-    },
-  },
 })

packages/twoslash-svelte/package.json

@@ -46,12 +46,12 @@
     "start": "esno src/index.ts"
   },
   "peerDependencies": {
+    "svelte2tsx": "*",
     "typescript": "*"
   },
   "dependencies": {
     "@jridgewell/sourcemap-codec": "catalog:",
     "@volar/language-core": "catalog:",
-    "svelte2tsx": "catalog:",
     "twoslash": "workspace:*",
     "twoslash-protocol": "workspace:*"
   },

packages/twoslash-svelte/src/index.ts

@@ -1,5 +1,6 @@
 import type { CodeMapping } from '@volar/language-core'
 import type { CompilerOptionDeclaration, CreateTwoslashOptions, HandbookOptions, Range, TwoslashExecuteOptions, TwoslashInstance, TwoslashReturnMeta } from 'twoslash'
+import { createRequire } from 'node:module'
 import { join } from 'node:path'
 import { decode } from '@jridgewell/sourcemap-codec'
 import { SourceMap } from '@volar/language-core'
@@ -21,6 +22,7 @@ export interface CreateTwoslashSvelteOptions extends CreateTwoslashOptions {
  * Create a twoslasher instance that add additional support for Svelte
  */
 export function createTwoslasher(createOptions: CreateTwoslashSvelteOptions = {}): TwoslashInstance {
+  const require = createRequire(import.meta.url)
   const _twoslasher = _createTwoSlasher(createOptions)
 
   function twoslasher(code: string, extension?: string, options: TwoslashExecuteOptions = {}) {
@@ -86,15 +88,15 @@ export function createTwoslasher(createOptions: CreateTwoslashSvelteOptions = {}
       }
       return offsets[offsets.length - 1]?.[0]
     }
-
+    const svelte2tsxPath = require.resolve('svelte2tsx')
     const result = _twoslasher(compiled.code, 'tsx', {
       ...options,
       compilerOptions: {
         types: [
-          join(import.meta.dirname, 'types', 'svelte-jsx'),
-          join(import.meta.dirname, 'types', 'svelte-jsx-v4'),
-          join(import.meta.dirname, 'types', 'svelte-shims'),
-          join(import.meta.dirname, 'types', 'svelte-shims-v4'),
+          join(svelte2tsxPath, '..', 'svelte-jsx'),
+          join(svelte2tsxPath, '..', 'svelte-jsx-v4'),
+          join(svelte2tsxPath, '..', 'svelte-shims'),
+          join(svelte2tsxPath, '..', 'svelte-shims-v4'),
         ],
         ...compilerOptions,
       },