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. ## The Strange Programming Language That Helped Build WhatsApp By @zbruceli [ 15 Min read ] Erlang: a programming language built in a Swedish telecom lab in the 1980s, ended up running the biggest messaging app WhatsApp. Told by its co-creator. Read More.AI-Assisted Genealogy: Using AI to Trace My Family Tree By @nfrankel [ 7 Min read ] I continue working on my tree, and I have deepened my understanding of the subject. In this post, I want to share again. Read More.Muse, Instinct, Wajo, and OpenAI's Dots: Four AI Assistants That Do the Work for You By @hacker-Antho [ 5 Min read ] Four well-funded products from Meta, OpenAI, and fast-growing startups now compete on completed tasks: bills lowered, contracts negotiated, tables booked. Read More.Did Elon Musk Buy Dot.com Just to Troll OpenAI’s New AI Agent Dots? By @clapback [ 5 Min read ] OpenAI launched Dots, its new always-on AI agents. Months earlier, Elon Musk’s xAI acquired Dot.com—and now the domain redirects straight to rival Grok Bot. Read More.AI Agents Are Killing the Git Client, Not Git: What Anthropic's Scion and Cursor's Origin Show By @pairprogramming [ 30 Min read ] Anthropic replaced Git with Scion; Cursor launched Origin. Why AI agents make the Git client obsolete, which orgs should leave Git, and what GitHub must do. Read More.Awesome Agent Skills: 49 Skills for Better AI-Assisted Coding By @khasky [ 7 Min read ] Learn how to install and use Awesome Agent Skills with Claude Code, Codex, Gemini CLI, and Cursor to improve AI-assisted development workflows. Read More.Is Software Really Dead? The Rise of AI-Powered Reverse Engineering By @mendoncamaria [ 7 Min read ] An open-source tool called REA hit 100,000 GitHub stars in days. Here's what it does, the good and bad it's causing, and why the regulation fight is messy. Read More.The LLM Operating System: Transformers, Limitations, and the Need for Adaptation By @metinyurdev [ 11 Min read ] Explore LLM architectures, general-purpose limitations, and why adapting models through Fine-Tuning and RAG is the real engineering challenge. Read More.Why AI Agents Forget Everything (and How to Build Ones That Don't) By @kapilbidikar [ 4 Min read ] Learn how agent memory captures events, retrieves relevant context, and forgets outdated information to make AI interactions more useful and personal. Read More.Nemotron-3-diarization: Here's What You Need to Know By @aimodels44 [ 7 Min read ] Nemotron-3-Diarization is an open-weight speaker diarization model from NVIDIA that identifies who spoke when in real-world audio. Read More.Everyone Rushed to Deploy AI Agents. Now the Security Debt Is Coming Due By @thekonst [ 5 Min read ] AI agents can reach your data, tools, and systems. Learn how to list every agent, check its access, and close security gaps this quarter. Read More.What Happens When AI Agents Start Maintaining Legacy Code? By @vikrantbhalodia [ 12 Min read ] AI agents can read and modify legacy code, but missing business context makes autonomous maintenance far riskier than it first appears. Read More.The Billing Ladder: Five Ways to Price an AI Agent By @mayankc [ 6 Min read ] AI agent pricing is best understood as a ladder — seats, tokens, conversations, resolutions, outcomes — where each rung shifts the cost of a failed attempt. Read More.Just Publish an App. How F*g Hard Can It Be? By @radu14 [ 5 Min read ] I built my dream iOS app in two months while working full time, then got sick an hour after launch. An honest look at shipping solo. Read More.When Does Working Software Actually Become Legacy Software? By @vikrantbhalodia [ 9 Min read ] Working software can still become legacy. Learn how security, maintenance, knowledge gaps, dependencies, and change costs reveal when software is aging. Read More.This AI Model Has Native Text, Image, and Video Capabilities: Here's What You Should Know By @aimodels44 [ 8 Min read ] Qwen3.6-35B-A3B-Uncensored-Genesis-Hermes-GGUF is a locally runnable, text-to-text GGUF release with native text, image, and video capabilities. Read More.20 Best Open-Source AI Decision Models You Can Run Locally in 2026 By @thomascherickal [ 37 Min read ] 20 Local Decision Models that run locally free, and most of them before better than the original Jev. Read More.AI vs. Super Intelligence: Is the Rename Actually More Accurate? By @progrockrec [ 4 Min read ] Is "Super Intelligence" a more accurate name for AI? Not quite. Here's what AI and SI actually mean, why today's tech fits neither, and what to call it. Read More.I Built My Own "Muse Charm" on an ESP32 Stick: One Fast Brain, One Slow Brain By @zbruceli [ 15 Min read ] Didn't wait for Meta's Muse Charm. Built my own AI pal on a $21 ESP32 stick. Read More.AnitaB.org Cancels Grace Hopper Celebration 14 Days Out After Losing $14.6M and Half Its Attendees By @solvency [ 10 Min read ] AnitaB.org cancelled the 2026 Grace Hopper Celebration 14 days out after a $14.6M loss and a halving of attendance. How women in tech lost their biggest stage. 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 ✌️