How are you, hacker? 🪐Want to know what's trending right now?: The Techbeat by HackerNoon has got you covered with fresh content from our trending stories of the day! Set email preference here. ## How Agoda Scaled Its Feature Store 50X with ScyllaDB By @scylladb [ 6 Min read ] Learn how Agoda scaled its ScyllaDB-powered feature store 50x using NVMe upgrades, cache optimization, and smarter data modeling. Read More.How MoEngage Achieved Millisecond Personalization with ScyllaDB By @scylladb [ 13 Min read ] MoEngage built a ScyllaDB-powered Eventstore handling 250K writes per second, 200TB+ of data, and millisecond queries for real-time personalization. Read More.Understanding the Design Philosophy Behind the Linux Filesystem By @techcircumference [ 4 Min read ] A beginner-friendly exploration of why Linux uses directories like /bin, /etc, /usr, and /var, and the Unix design philosophy behind them. Read More.Refer and earn up to $5K with Social Discovery Group’s new Employee Referral Program! By @socialdiscoverygroup [ 3 Min read ] Social Discovery Group offers an employee referral program where you can earn up to $5,000 when someone you refer completes probation. Read More.How We Detect iOS App Launch Regressions Before Release Using XCUITests By @indrivetech [ 10 Min read ] How inDrive built iOS launch performance tests with XCUITests, CI, Slack alerts, and slow-network simulation to catch regressions before release. Read More.Bitnob Launches Enterprise: Non-Custodial Infrastructure for Institutions By @pressreleases [ 2 Min read ] Bitnob Enterprise lets banks, fintechs, and treasury teams build digital asset products while retaining control of custody and governance. Read More.A Developer’s Guide to Running Claude Code Through an AI Gateway By @nfrankel [ 7 Min read ] Before working for 2 years on the Apache APISIX API gateway, I was mainly oblivious to API gateways. Read More.The Postgres Developer's Guide to Vector Index Tradeoffs By @tigerdata [ 13 Min read ] Learn when to use HNSW, IVFFlat, StreamingDiskANN, and BM25 in Postgres. A practical guide to scaling vector search without guesswork. Read More.Revealing the Hidden Costs of Codebase Complexity By @playerzero [ 7 Min read ] AI-generated code is accelerating software complexity. Learn how predictive code quality helps enterprises prevent outages, reduce risk, and ship faster. Read More.10 Best Residential Proxies for Developers in 2026 By @oxylabs [ 25 Min read ] Compare the 10 best residential proxy providers for developers in 2026. Performance benchmarks, pricing, features, and honest pros/cons for each service. Read More.How I Built Guardrails That Stopped My AI Agent From Going Rogue By @nossaiyamu [ 14 Min read ] I shipped an AI agent without guardrails. It leaked PII, hallucinated answers, and burned $400 overnight. Here is how I fixed it with Python. Read More.Financial AI Has a Memory Problem Wall Street Can’t Ignore By @gabrielmanga [ 6 Min read ] Financial AI can lose context as work continues. This breakdown explains how InKH keeps memory current across portfolios, trades, and client reviews. Read More.Why Everyone at Anthropic and OpenAI Is Just "Technical Staff" — and What It Means for Your Job By @monica [ 5 Min read ] Does your company need a manager — or does it need the person with the best judgment on the hardest problem? Read More.The GitHub Copilot Bill Came Due. Here's What Engineering Leaders Should Do. By @kilocode [ 7 Min read ] GitHub Copilot's flat subscription is gone. Agentic workflows are now metered, bills are unpredictable, and engineering leaders at Gartner are scrambling. Here' Read More.The New Youth "Disease": How AI Is Destroying Musical Identity - and Creating a Generation of AI Hat By @kokhanserhii [ 7 Min read ] Indirect influence of artificial intelligence on humans through music. Read More.System Definition Brings Software Engineering to AI Coding By @sebastianmartinez [ 10 Min read ] AI can generate code, but engineered software requires system definition: contracts, boundaries, constraints, provenance, and evaluation. Read More.Why AI Pilots Succeed but Enterprise Transformations Fail By @dextrousdavid [ 5 Min read ] Why AI pilots succeed but fail at scale. Discover why governance, leadership, and organisation determine enterprise AI success. Read More.The Pope and AI By @eroms [ 5 Min read ] Pope Leo XIV's AI encyclical sparked global headlines. But what did he actually say — and do the AIs themselves agree with him? Read More.Why Non-Human Identities Have Become a Critical Security Challenge By @karim-identity-ai [ 5 Min read ] AI agents, service accounts, and API keys are expanding the non-human attack surface, forcing a rethink of identity governance. Read More.An Eight-Week Analysis of Accept-Language Headers Across Major AI Bots By @cihangirbozdogan [ 22 Min read ] Meta DescriptionAn 8-week analysis of AI bot traffic reveals how major crawlers handle Accept-Language headers—and what that means for multilingual websites 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 ✌️