diff --git a/src/officesense_pi/src/core/bootstrap.ts b/src/officesense_pi/src/core/bootstrap.ts
index a089428..551a67d 100644
--- a/src/officesense_pi/src/core/bootstrap.ts
+++ b/src/officesense_pi/src/core/bootstrap.ts
@@ -1,16 +1,27 @@
-import { initRedis } from "./redis.js";
+import { getRoomIDs } from "../api/livedata/livedata.repository.js";
+import { initRedis, initSubRedis } from "../redis/redis.js";
 import * as mqtt from "./mqtt.js";
 import { cleanupWorker } from "./transition.js";
 
 export async function bootstrap() {
     try {
-        await initRedis();
+        const redis = await initRedis();
+
+        await redis.flushDb();
+        console.log(`[!] Flushed Redis.`);
+
+        const rooms = await getRoomIDs();
+        for (const { id } of rooms)
+            await redis.set(`room:${id}`, 0);
+
+        await initSubRedis();
         await mqtt.start();
+
         cleanupWorker();
 
-        console.log("Core started.");
+        console.log("[!] Core started.");
     } catch (err: any) {
-        console.log("Bootstrap failed:", err.message);
+        console.log("[!] Bootstrap failed:", err.message);
         process.exit(1);
     }
 }
\ No newline at end of file