diff --git a/package.json b/package.json
index 2a1b738..518bba2 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,9 @@
   "type": "module",
   "scripts": {
     "dev": "vite",
-    "build": "vue-tsc --noEmit && vite build",
+    "build": "vue-tsc --noEmit && vite build --mode production",
+    "build:staging": "vue-tsc --noEmit && vite build --mode staging",
+    "build:prod": "vue-tsc --noEmit && vite build --mode production",
     "preview": "vite preview --host 0.0.0.0",
     "typecheck": "vue-tsc --noEmit",
     "test": "node --test src/**/*.test.ts"
diff --git a/src/env.d.ts b/src/env.d.ts
index fc5f35e..ea5c5c3 100644
--- a/src/env.d.ts
+++ b/src/env.d.ts
@@ -1,5 +1,18 @@
 /// <reference types="vite/client" />
 
+interface ImportMetaEnv {
+  readonly VITE_APP_ENV: "development" | "staging" | "production";
+  readonly VITE_API_BASE_URL: string;
+  readonly VITE_API_TIMEOUT_MS?: string;
+  readonly VITE_SOCKET_BASE_URL?: string;
+  readonly VITE_CLIENT_ID?: string;
+  readonly VITE_TOKEN?: string;
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv;
+}
+
 declare module "*.vue" {
   import type { DefineComponent } from "vue";