01NVIDIA Nemotron 3 Super: Best Open-Weight Coding Modelwhobuilt.appNVIDIA Nemotron 3 Super scores 60.47% on SWE-Bench Verified — the top open-weight coding result. Open weights, 1M-token context, and 5x throughput gains.MAR 21AI4 MIN READ▲2143189CMT
02Fallas Valencia 2026 Survival Guide: 15 Tips You Actually Needwhobuilt.appLas Fallas is five days of controlled chaos across an entire city — 750+ burning monuments, daily gunpowder explosions, 2M visitors. This guide covers the practical things that will make or break your experience.FEB 24TRAVEL8 MIN READ▲2140230CMT
03Gemma 4: 31B Dense Model Ranks #3 Among All Open LLMswhobuilt.appOn April 2, 2026, Google released Gemma 4 in four sizes under Apache 2.0. The 31B dense ranks #3 on Arena AI and outperforms closed models many times its size.APR 14AI4 MIN READ▲210968CMT
04Langflow RCE Bug CVE-2026-33017 Exploited in 20 Hourswhobuilt.appLangflow's CVE-2026-33017 is a critical unauthenticated RCE exploited in 20 hours. Update to 1.9.0 and rotate every credential your pipeline can reach.MAR 21DEV3 MIN READ▲1847134CMT
05Best Apps for Las Fallas 2026: Which One Should You Download?whobuilt.appOver 750 fallas monuments, a city-wide festival, and millions of visitors. You need the right app. This guide compares your realistic options and explains which Fallas map app is worth installing.FEB 24TRAVEL5 MIN READ▲138095CMT
06Google ADK for TypeScript: Build Multi-Agent AI Systemswhobuilt.appGoogle ADK for TypeScript launched April 2026: open-source, code-first, model-agnostic agent framework. Runs on Gemini 3, Python/Go/Java equivalents also exist.APR 14DEV4 MIN READ▲130197CMT
07This Developer's Dog Is Now a Game Dev (Sort Of)whobuilt.appA dev rigged up an AI vibe coding setup where their dog presses buttons and the AI generates actual game logic. It hit 1042 upvotes on HN — turns out the barrier to game dev is now literally paw-level.FEB 25AI4 MIN READ▲1042335CMT
08Open VSX Hits 300M Downloads, Adds Security Scanningwhobuilt.appOpen VSX hit 300 million monthly downloads and launched pre-publish security scanning March 2026. Here's what the checks cover and what publishers need to do.MAR 21OPEN SOURCE4 MIN READ▲92376CMT
09GlassWorm Zig Dropper Now Infects Every IDE You Havewhobuilt.appGlassWorm's Zig dropper hides in a fake WakaTime extension, infects VS Code, Cursor, Windsurf, deploys a RAT via Solana C2, and installs a Chrome infostealer.APR 14DEV4 MIN READ▲851110CMT
10Karpathy's MicroGPT: A Full LLM in 200 Lines of Pythonwhobuilt.appAndrej Karpathy published a 200-line pure Python file that trains and runs a GPT with zero dependencies. No PyTorch, no NumPy. The entire stack -- autograd, architecture, tokenizer, training loop -- fits in a single file. Key insight: everything else is just efficiency.MAR 01AI4 MIN READ▲731120CMT
11Google Blocks Unregistered Android Apps Worldwide After 2026whobuilt.appAndroid developer verification launches September 2026: all developers must register with Google, pay fees, and submit government ID or apps are blocked.APR 28TECH3 MIN READ▲565296CMT
12Denmark's Government Is Done with Microsoftwhobuilt.appDenmark's Agency for Digital Government is moving off Microsoft software in favor of open-source alternatives, citing digital sovereignty and cost. It's one of the largest public-sector Microsoft exits in Europe.FEB 25OPEN SOURCE5 MIN READ▲498271CMT
13Ghostty Leaves GitHub After 18 Years of Daily Outageswhobuilt.appMitchell Hashimoto, GitHub user #1299 since 2008, is moving Ghostty off GitHub after near-daily outages blocked his work for over a month in 2026.APR 28DEV3 MIN READ▲485101CMT
14Obsidian Sync Gets a Headless Clientwhobuilt.appObsidian shipped a headless sync client -- you can now run Obsidian Sync as a background daemon on Linux servers, Raspberry Pis, and Docker containers. This closes a real gap for teams using Obsidian as a shared knowledge base on headless infrastructure.MAR 01DEV4 MIN READ▲470160CMT
15A Decade of Docker: What the Data Actually Showswhobuilt.appA new ACM study covers ten years of Docker container adoption across millions of images, CI pipelines, and production deployments. The findings confirm some assumptions and contradict others — image hygiene, security posture, and orchestration consolidation all look different under longitudinal data.MAR 08DEV3 MIN READ▲293202CMT
16Claude Code Now Has a Remote Control APIwhobuilt.appAnthropic shipped remote control for Claude Code — developers can now drive Claude Code instances programmatically via API, enabling fully automated coding pipelines and agent-to-agent workflows. This turns Claude Code from a dev tool into an orchestratable coding engine.FEB 25DEV4 MIN READ▲272165CMT
17The 1996 Windows 95 UI Case Study Still Holds Upwhobuilt.appA 1996 ACM paper on the Windows 95 interface resurfaced on HN. Microsoft ran 85+ usability studies with thousands of participants to design what became the most widely shipped GUI in history. The Start button, taskbar, and program discovery -- all came from research, not intuition.MAR 01DESIGN4 MIN READ▲253150CMT
18Cloud VM Benchmarks 2026: AMD Turin Dominates Everythingwhobuilt.appDimitrios Kechagias benchmarked 44 VM types across 7 cloud providers using CPU-intensive workloads. AMD EPYC Turin is a clear tier above everything else. ARM options are stronger than ever, Intel Granite Rapids fixes Emerald Rapids instability, and Oracle remains the best on-demand value.MAR 08DEV3 MIN READ▲21195CMT
19Flash-MoE Runs a 397B Parameter Model on Your Laptopwhobuilt.appFlash-MoE is an open-source project that runs a 397B parameter model on a laptop. Flash attention and VRAM offloading exploit MoE sparsity to make it possible.MAR 22AI3 MIN READ▲19969CMT
20Project Nomad Builds Offline-First Knowledge That Lastswhobuilt.appProject Nomad is an offline-first knowledge system built to outlast any service shutdown or lapsed subscription. Self-hosted, no cloud, no expiry.MAR 22DEV3 MIN READ▲17228CMT
21uv Now Warns That PyPy May Be Abandonedwhobuilt.appA merged PR in the uv package manager adds a warning when users install PyPy: the runtime shows signs of being unmaintained. The evidence — a numpy issue filed by a PyPy developer themselves — suggests the project is winding down without an official announcement.MAR 08OPEN SOURCE3 MIN READ▲15545CMT
22Windows Native App Development Is Still a Mess in 2026whobuilt.appDomenic Denicola's post surveys the Windows native dev landscape: Win32, WinUI 3, WPF, UWP, MAUI, Electron — six frameworks, no good path forward in 2026.MAR 22DEV3 MIN READ▲132122CMT
23Warp Terminal Now Open Source, Backed by OpenAI on GitHubwhobuilt.appWarp, the Rust-based agentic development environment, is now open source under AGPL v3 with OpenAI as founding sponsor and GPT-powered agentic workflows.APR 28OPEN SOURCE3 MIN READ▲7323CMT