diff --git a/.env b/.env
new file mode 100644
index 0000000..c7936c6
--- /dev/null
+++ b/.env
@@ -0,0 +1 @@
+VITE_JUDGE0_URL=https://judge0.xuyue.cc
\ No newline at end of file
diff --git a/.env.production b/.env.production
new file mode 100644
index 0000000..c7936c6
--- /dev/null
+++ b/.env.production
@@ -0,0 +1 @@
+VITE_JUDGE0_URL=https://judge0.xuyue.cc
\ No newline at end of file
diff --git a/.env.staging b/.env.staging
new file mode 100644
index 0000000..f6d92a6
--- /dev/null
+++ b/.env.staging
@@ -0,0 +1 @@
+VITE_JUDGE0_URL=http://10.13.114.214:8082
\ No newline at end of file
diff --git a/.vitepress/theme/judge.ts b/.vitepress/theme/judge.ts
index 49438b9..4bc84d8 100644
--- a/.vitepress/theme/judge.ts
+++ b/.vitepress/theme/judge.ts
@@ -1,5 +1,5 @@
 import axios from "axios"
-import { inBrowser } from 'vitepress'
+import { inBrowser } from "vitepress"
 
 interface Code {
   language: "c" | "python"
@@ -24,17 +24,8 @@ const DEAD_RESULTS = {
   },
 }
 
-function getChromeVersion() {
-  if (!inBrowser) return 0
-  var raw = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./)
-  return raw ? parseInt(raw[2], 10) : 0
-}
-
-const isLowVersion = getChromeVersion() < 80
-
-const protocol = isLowVersion ? "http" : "https"
-
-const http = axios.create({ baseURL: `${protocol}://judge0api.xuyue.cc` })
+//@ts-ignore
+const http = axios.create({ baseURL: import.meta.env.VITE_JUDGE0_URL })
 
 function encode(string?: string) {
   return btoa(String.fromCharCode(...new TextEncoder().encode(string ?? "")))
diff --git a/package.json b/package.json
index c6741be..98c4f45 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,8 @@
   "type": "module",
   "scripts": {
     "start": "vitepress dev",
-    "build": "vitepress build"
+    "build": "vitepress build",
+    "build:staging": "vitepress build --mode=staging"
   },
   "keywords": [],
   "author": "",