diff --git a/src/lib/firebase/instances.ts b/src/lib/firebase/instances.ts
index b014c5a..5b275d0 100644
--- a/src/lib/firebase/instances.ts
+++ b/src/lib/firebase/instances.ts
@@ -3,35 +3,47 @@ import { connectAuthEmulator, getAuth } from "firebase/auth";
 import { connectFirestoreEmulator, getFirestore } from "firebase/firestore";
 import { connectStorageEmulator, getStorage } from "firebase/storage";
 
-const apiKey = process.env["NEXT_PUBLIC_FIREBASE_API_KEY"];
-if (!apiKey || apiKey === "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx") {
-  throw new Error("Invalid Firebase API Key. (Did you set `.env`?`)");
-}
-
-const config: FirebaseOptions = {
-  apiKey: process.env["NEXT_PUBLIC_FIREBASE_API_KEY"] ?? "",
-  authDomain: process.env["NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN"] ?? "",
-  databaseURL: process.env["NEXT_PUBLIC_FIREBASE_DATABASE_URL"] ?? "",
-  projectId: process.env["NEXT_PUBLIC_FIREBASE_PROJECT_ID"] ?? "",
-  storageBucket: process.env["NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET"] ?? "",
-  messagingSenderId:
-    process.env["NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID"] ?? "",
-  appId: process.env["NEXT_PUBLIC_FIREBASE_APP_ID"] ?? "",
-};
-// console.log('# config', config);
+const { config, usingRealFb } = pickEnv();
+// console.log("# config", config);
+// console.log("# usingRealFb", Boolean(usingRealFb));
 
 const app = initializeApp(config);
 export const auth = getAuth(app);
 export const db = getFirestore(app);
 export const storage = getStorage(app);
 
-const usingRealFb = process.env["NEXT_PUBLIC_FIREBASE_USE_REAL"];
 if (!usingRealFb) {
   // eslint-disable-next-line no-console
   console.info("Using emulators");
   initializeEmulators();
 }
 
+function pickEnv() {
+  const apiKey = process.env["NEXT_PUBLIC_FIREBASE_API_KEY"];
+  if (!apiKey || apiKey === "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx") {
+    throw new Error("Invalid Firebase API Key. (Did you set `.env`?`)");
+  }
+
+  const config: FirebaseOptions = {
+    apiKey: apiKey ?? "",
+    authDomain: process.env["NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN"] ?? "",
+    databaseURL: process.env["NEXT_PUBLIC_FIREBASE_DATABASE_URL"] ?? "",
+    projectId: process.env["NEXT_PUBLIC_FIREBASE_PROJECT_ID"] ?? "",
+    storageBucket: process.env["NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET"] ?? "",
+    messagingSenderId:
+      process.env["NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID"] ?? "",
+    appId: process.env["NEXT_PUBLIC_FIREBASE_APP_ID"] ?? "",
+  };
+
+  const usingRealFb = Boolean(process.env["NEXT_PUBLIC_FIREBASE_USE_REAL"]);
+
+  return {
+    apiKey,
+    config,
+    usingRealFb,
+  };
+}
+
 function initializeEmulators() {
   connectAuthEmulator(auth, "http://127.0.0.1:9099", { disableWarnings: true });
   connectFirestoreEmulator(db, "127.0.0.1", 8080);