diff --git a/.gitignore b/.gitignore
index 367bc47e..68ac54d3 100755
--- a/.gitignore
+++ b/.gitignore
@@ -22,6 +22,7 @@ coverage
 /release
 /out
 *.asar
+/public/monaco
 
 # Editor directories and files
 .vscode/*
diff --git a/components/TextEditorModal.tsx b/components/TextEditorModal.tsx
index 4349c50c..f26b677b 100644
--- a/components/TextEditorModal.tsx
+++ b/components/TextEditorModal.tsx
@@ -12,7 +12,10 @@ import type * as Monaco from 'monaco-editor';
 import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 
 // Configure Monaco to use local files instead of CDN
-loader.config({ paths: { vs: './node_modules/monaco-editor/min/vs' } });
+const monacoBasePath = import.meta.env.DEV
+  ? './node_modules/monaco-editor/min/vs'
+  : `${import.meta.env.BASE_URL}monaco/vs`;
+loader.config({ paths: { vs: monacoBasePath } });
 
 import { useI18n } from '../application/i18n/I18nProvider';
 import { getLanguageId, getLanguageName, getSupportedLanguages } from '../lib/sftpFileUtils';
diff --git a/package.json b/package.json
index 3c46bae6..1167945f 100755
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
   "scripts": {
     "dev": "npm run lint && concurrently -k \"vite\" \"npm:dev:electron\"",
     "dev:electron": "wait-on http-get://localhost:5173 && cross-env VITE_DEV_SERVER_URL=http://localhost:5173 node electron/launch.cjs",
+    "prebuild": "node scripts/copy-monaco.cjs",
     "build": "vite build",
     "preview": "vite preview",
     "start": "node electron/launch.cjs",
diff --git a/scripts/copy-monaco.cjs b/scripts/copy-monaco.cjs
new file mode 100644
index 00000000..ba24c5ff
--- /dev/null
+++ b/scripts/copy-monaco.cjs
@@ -0,0 +1,16 @@
+const fs = require('fs');
+const path = require('path');
+
+const repoRoot = path.resolve(__dirname, '..');
+const source = path.join(repoRoot, 'node_modules', 'monaco-editor', 'min', 'vs');
+const target = path.join(repoRoot, 'public', 'monaco', 'vs');
+
+if (!fs.existsSync(source)) {
+  console.error('[copy-monaco] Source not found:', source);
+  process.exit(1);
+}
+
+fs.rmSync(target, { recursive: true, force: true });
+fs.mkdirSync(path.dirname(target), { recursive: true });
+fs.cpSync(source, target, { recursive: true });
+console.log('[copy-monaco] Copied Monaco VS assets to', target);