installer: env and app manager
diff --git a/core/installer/index.html b/core/installer/index.html
new file mode 100644
index 0000000..7dc1883
--- /dev/null
+++ b/core/installer/index.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+ <meta charset="UTF-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
+ <meta http-equiv="X-UA-Compatible" content="IE=edge">
+ <!--[if lte IE 10]>
+ <script
+ src="https://as.alipayobjects.com/g/component/??console-polyfill/0.2.2/index.js,media-match/2.0.2/media.match.min.js"></script>
+ <![endif]-->
+ <style>
+ ::-webkit-scrollbar {
+ width: 10px;
+ height: 1px;
+ }
+
+ ::-webkit-scrollbar-thumb {
+ border-radius: 10px;
+ -webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.1);
+ background: #535353;
+ }
+ </style>
+<link href="./styles.css?8ac16e7f25ad6478423a" rel="stylesheet"></head>
+
+<body>
+ <div id="root"></div>
+<script type="text/javascript" src="./runtime~main.6d7bda24.js?8ac16e7f25ad6478423a"></script><script type="text/javascript" src="./styles.985bf912.async.js?8ac16e7f25ad6478423a"></script><script type="text/javascript" src="./main.0f154239.async.js?8ac16e7f25ad6478423a"></script></body>
+
+</html>