diff --git a/.env.example b/.env.example
index 3fd410d..ea29e00 100644
--- a/.env.example
+++ b/.env.example
@@ -1,7 +1,7 @@
-PUBLIC_FIREBASE_API_KEY=
-PUBLIC_FIREBASE_AUTH_DOMAIN=gdg-platform-cochabamba.firebaseapp.com
-PUBLIC_FIREBASE_PROJECT_ID=gdg-platform-cochabamba
-PUBLIC_FIREBASE_STORAGE_BUCKET=gdg-platform-cochabamba.firebasestorage.app
-PUBLIC_FIREBASE_MESSAGING_SENDER_ID=
-PUBLIC_FIREBASE_APP_ID=
+PUBLIC_FIREBASE_API_KEY=AIzaSyCFWM4dS64m-MJOLVTemsHcpT8HDbVATMo
+PUBLIC_FIREBASE_AUTH_DOMAIN=gdg-cbba-bo.firebaseapp.com
+PUBLIC_FIREBASE_PROJECT_ID=gdg-cbba-bo
+PUBLIC_FIREBASE_STORAGE_BUCKET=gdg-cbba-bo.appspot.com
+PUBLIC_FIREBASE_MESSAGING_SENDER_ID=37363473996
+PUBLIC_FIREBASE_APP_ID=1:37363473996:web:27fb07d725c3486073dee9
 PUBLIC_EVENT_SLUG=devfest-2025
diff --git a/src/lib/firebase.ts b/src/lib/firebase.ts
index 0c1345c..d2507e0 100644
--- a/src/lib/firebase.ts
+++ b/src/lib/firebase.ts
@@ -16,7 +16,9 @@ export function getDb(): Firestore {
         messagingSenderId: import.meta.env.PUBLIC_FIREBASE_MESSAGING_SENDER_ID,
         appId: import.meta.env.PUBLIC_FIREBASE_APP_ID,
       });
-    db = getFirestore(app);
+    // DevFest 2025 is a past event: its data is frozen in the read-only "legacy"
+    // database of gdg-cbba-bo. New events live in the (default) database.
+    db = getFirestore(app, "legacy");
   }
   return db;
 }
diff --git a/src/pages/index.astro b/src/pages/index.astro
index ce4932f..4c3d730 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -19,6 +19,8 @@ import {
 
 const slug = import.meta.env.PUBLIC_EVENT_SLUG ?? "devfest-2025";
 const event = await getEventBySlug(slug);
+// Never publish an empty landing: fail the build if the event isn't in the database.
+if (!event) throw new Error(`Event "${slug}" not found in Firestore`);
 
 let speakers: Awaited<ReturnType<typeof getEventSpeakers>> = [];
 let team: Awaited<ReturnType<typeof getEventTeam>> = [];