How are you, hacker? 🪐 What’s happening in tech today, November 13, 2025? The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, The Holland Tunnel Opened in 1927, 4 World Trade Center officially opened in 2013, The Nevado Del Ruiz Volcano Erupted in Colombia in 1985, and we present you with these top quality stories. From Breaking Down the Walls: Rescue Your SPA From Complete Freeze to VSYS Host Launches VSYS Name - an ICANN-Accredited Domain Registrar, let’s dive right in. Balancer V2 Exploit Explained: Inside the Smart Contract Rounding Error That Cost $120M By @0xsmartcontract [ 12 Min read ] How a rounding bug in Balancer V2’s Composable Stable Pools led to a $120M exploit—and why continuous audits are now a DeFi must. Read More. Breaking Down the Walls: Rescue Your SPA From Complete Freeze By @anandk05 [ 4 Min read ] React page frozen solid? Here’s how a single Chrome DevTools feature helped trace an infinite loop hidden deep in Redux selectors. Read More. VSYS Host Launches VSYS Name - an ICANN-Accredited Domain Registrar By @hacker38388747 [ 2 Min read ] VSYS Host launches VSYS Name, an ICANN-accredited registrar offering direct domain control, transparent pricing, crypto payments, and 24/7 expert support. Read More. Building a RAG System That Runs Completely Offline By @teedon [ 30 Min read ] Build a private, offline RAG with Ollama + FAISS. Ingest docs, chunk, embed, and cite answers—no APIs, no cloud, full control over sensitive data. Read More. 🧑💻 What happened in your world this week? It's been said that writing can help consolidate technical knowledge, establish credibility, and contribute to emerging community standards. Feeling stuck? We got you covered ⬇️⬇️⬇️ ANSWER THESE GREATEST INTERVIEW QUESTIONS OF ALL TIME We hope you enjoy this worth of free reading material. Feel free to forward this email to a nerdy friend who'll love you for it.See you on Planet Internet! With love, The HackerNoon Team ✌️