primer prueba de concepto para firebase

src/lib/stores/firebase.ts

@@ -0,0 +1,37 @@
+import { initializeApp, type FirebaseApp } from 'firebase/app';
+import { getAuth, type Auth } from 'firebase/auth';
+
+import {
+	PUBLIC_f_apiKey,
+	PUBLIC_f_appId,
+	PUBLIC_f_authDomain,
+	PUBLIC_f_messagingSenderId,
+	PUBLIC_f_projectId,
+	PUBLIC_f_storageBucket
+} from '$env/static/public';
+
+let app: FirebaseApp | null = null;
+let auth: Auth | null = null;
+
+const firebaseConfig = {
+	apiKey: PUBLIC_f_apiKey,
+	authDomain: PUBLIC_f_authDomain,
+	projectId: PUBLIC_f_projectId,
+	storageBucket: PUBLIC_f_storageBucket,
+	messagingSenderId: PUBLIC_f_messagingSenderId,
+	appId: PUBLIC_f_appId
+};
+
+export function getFirebaseApp(): FirebaseApp {
+	if (!app) {
+		app = initializeApp(firebaseConfig);
+	}
+	return app;
+}
+
+export function getFirebaseAuth(): Auth {
+	if (!auth) {
+		auth = getAuth(getFirebaseApp());
+	}
+	return auth;
+}