AI Summarized Hacker News
Front-page articles summarized hourly.
There's no standard Engineering Manager role; success depends on the team’s needs across four pillars—Product, Process, People, and Programming—and shifts with context. Everyone must care about the product and deliver user value, not just code. Processes should improve outcomes, not become rituals. Downward communication must be transparent; upward, strategic with context, problem, plan, and needed support. You’re a 10% player, 30% coach, 60% cheerleader. The goal is a team that thrives without you: train others, delegate, and avoid bottlenecks. Trust your engineers, verify with thoughtful metrics, and hire wisely without overprotecting processes.
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NukeCast is a web-based fallout simulation that uses current weather forecasts to map how radioactive fallout could disperse and settle after a potential nuclear strike on the U.S. It provides an exposure analysis with total dose and dose rate, including a 12‑hour integration and color-coded risk tiers, and lets users select states, units, and time zones. A premium tier offers extended forecast times and state insights for $9.99/month. The site notes the model’s assumptions and limitations and urges following official emergency guidance.
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POSIX shell static-site generator (gen.sh) turns a Markdown posts/ directory into a full blog in public/, using include/, template/, and frontmatter in lines 2-6. It renders Markdown with comrak (extensions) and sed post-processing, then fills templates with envsubst to produce per-post pages, an index, a tags page, drafts, and feeds (Atom, RSS, JSON) plus a sitemap. It has no incremental cache, is site-specific, and relies on shell glue for speed and simplicity; the author may switch to bash later.
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sf-microclimates is a free hyperlocal weather API for 50 San Francisco neighborhoods, no API key required. It aggregates data from PurpleAir sensors, grouped by neighborhood, and returns real-time temperature, humidity, and sensor counts. Endpoints: GET /sf-weather for all neighborhoods, GET /sf-weather/:neighborhood, and GET /neighborhoods. Live API at microclimates.solofounders.com. Self-hosting with Cloudflare Workers: clone, install, provide PurpleAir API key, create KV namespace, set secret, deploy. Supports other cities via adapting SF_NEIGHBORHOODS and bounding boxes. Built by Solo Founders; MIT license.
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Scott Cooper tests porting projects to Cloudflare Workers to exploit cheap/free resources, despite limits on larger apps. He uses AI Codex (GPT-5.2) to bootstrap two ports: Datasette-ts and SESnoop. Datasette-ts uses Drizzle, Hono, and Alchemy, rendering with Hono JSX; live demo at datasette-legislators.ep.workers.dev; code at github.com/scttcper/datasette-ts. SESnoop ports Sessy (Rails) as a Cloudflare Worker monorepo with API and a React SPA frontend, facing webhook routing issues and frontend polish (shadcn). Both projects were largely Codex-driven; about a week per project; overall happy with results.
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TrackHands is a cross-platform desktop app that detects when your fingers are near your mouth and reminds you to stop. It uses MediaPipe for real-time face/hand detection (Face Mesh + Hands) and runs locally in the system tray with a warning overlay and camera preview. Privacy-focused: all processing stays on your device. Features include adjustable detection speed, configurable camera resolution, and optional incident screenshots. Built with Tauri + React + Rust; macOS/Windows/Linux; MIT license. Development uses pnpm tauri dev/build.
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Luminal’s Megakernel approach fuses entire model forward passes into a single kernel to remove launch overhead, wave quantization, and inter-kernel bubbles. It uses a graph-based compiler to rewrite ops into tile-based block ops, derives data and barrier strides, and emits a compact interpreter with a global instruction queue shared by all SMs. A symbolic work queue stores instruction templates with counts (e.g., number of tile matmul instances) that are dispatched at runtime, avoiding costly reallocation. Barriers use increment-then-decrement counters to track in-flight producers. The result: tighter load–compute overlap and near-automatic, architecture-agnostic megakernel generation.
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Paul Kinlan shows browsers’ sandbox, designed for untrusted code, can power in-browser agents. Willison tests this with Co-do, a demo to see if the browser can run software on a user’s machine. It covers three sandbox aspects—filesystem, network, safe execution—via the File System Access API (Chrome), CSP sandboxed iframes, and WebAssembly in Web Workers. Co-do lets users pick a folder and an LLM provider with an API key, then interacts with files through CSP-approved calls in a chat UI. The post notes iframe sandbox documentation gaps, a double-iframe technique for network rules, and the webkitdirectory file input.
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Nature integrated WebView via the nature-webview project to produce a desktop app with a Hello World example. MacOS crashes from JS→Nature callbacks were traced to WebKit stack checks; fix: run UI on the system shared stack (temporary). Linux required mixing static musl-built Nature with dynamic glibc WebKit/GTK, via a custom linker to build on Ubuntu 22.04. To avoid GC stalls from blocking WebView, a 10 ms JavaScript interval callback yielding the coroutine was adopted. C callbacks and closures were enabled by extracting function pointers. Result: native-like performance with GC safety; future: separate thread/stack main function, Windows support; v0.7.3.
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WhyThere helps you find your perfect city by allowing side-by-side comparisons of weather, cost of living, sunlight hours, and lifestyle metrics to inform data-driven relocation decisions.
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Video Games as Art argues that video games are art, but a transformation-focused form whose essence is how playing changes the player, not what is described. Since interactive art cannot be fully described, traditional criticism often fails, reducing games to ads, cutscenes, or metrics. The piece surveys games like Journey, Shadow of the Colossus, Factorio, roguelikes, and walking sims to show art arising from gameplay itself—sorrow, impermanence, systems thinking—rather than narration. Scrubs miss point. Effective criticism must convey the transformative experience, not mere parts; roles include technical analysis, mediation to insight, and guiding readers toward transformation; AI might help.
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Could not summarize article.
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Iran is testing a two-tier internet called Barracks Internet, granting global web access only to security-vetted elites while about 85–90 million citizens are confined to an intranet. White SIM cards have long provided unrestricted access to a tiny elite; now the regime seeks scale and permanence. International access is not expected to return until at least late March. The plan risks a brutal economic cost—NetBlocks cites over $37 million daily losses; digital livelihoods are collapsing as services shrink. Foreign partners retreat; Irancell CEO was fired for not obeying shutdown orders. Experts warn the system may be economically unsustainable.
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Microsoft warns that Windows 11 January 2026 Update (KB5074109) may cause some PCs to fail boot with UNMOUNTABLE_BOOT_VOLUME and a black screen. Affected: Windows 11 25H2/24H2; scope unclear. Recovery may be required; WinRE might fail, so a clean ISO reinstall could be needed. The update also disrupts Outlook Classic, Desktop.ini in File Explorer, wallpaper, Sleep (S3), Citrix Director, and Remote Desktop. Emergency KB5078127 fixes some issues. Check Settings > System > About for build 26200.7623 to confirm installation.
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Delta single handle ball faucets is a 1963 Delta Faucet Co. trade catalog (Division 22) of residential plumbing fixtures and trim, with illustrations. It is part of the Building Technology Heritage Library and includes downloadable PDFs and other formats; the work is cataloged as Public Domain Mark 1.0.
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Swizec Teller argues that the future of software engineering is SRE: writing code is easy; keeping a service running reliably over time is hard. Even with no-code and automation, operations excellence wins—customers hire a service, not software. Key concerns include uptime, defect rate, incident recovery, upstream dependencies, security, and cross-time-zone coordination. The first 90% to a working demo is easy; the remaining 190%—reliability, observability, and maintainability—determines success. SRE will be the most in-demand engineering role.
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The Science of Fermentation on The Food Programme examines the science behind fermented foods and the health claims surrounding them. Dan Saladino hosts, with Tim Spector and Robin Sherriff; produced and presented by Saladino. The 42-minute program is available now; last broadcast Sat 17 Jan 2026 22:15.
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A Landing Leaderboard where users vote on landing pages to unlock rankings, judged by three criteria: Clarity (What does it do?), Direction (Where to go next?), and Design (Does it look good?), with rankings unlocked after enough votes.
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Turbopack, the new default Next.js bundler, achieves fast iteration by using an automated, fine-grained incremental caching system. It uses value cells to track function-level dependencies and their data, enabling selective recomputation when changes occur. An aggregation graph speeds queries over large dependency graphs. It supports dirtiness propagation and demand-driven execution (active queries). Historically, manual dependency graphs hinder caching; Turbopack builds caches for files, ASTs, metadata, and chunking data. Recently added file-system caching persists caches to disk for faster restarts. The architecture aims to scale to large apps with instant builds and fast React Fast Refresh.
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