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Embedding a bitmap font in your HyperCard stack

HyperCard stacks store resources in a resource fork; fonts can be embedded as resources (FOND and nfnt) and used at runtime. The author demonstrates importing a bitmap font (Jeff-Nichols 72) via ResEdit, then using HyperTalk (set textFont of card field 1 to "Jeff-Nichols") to display text at the desired size. Embedding fonts avoids system dependencies, enables dynamic text rendering and localization, and goes beyond static icons. The post explains the Mac Resource Manager model (data vs. resource forks) and notes XCMDs as a path to extend fonts and other resources.

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Thelio Mira AI Linux Workstation: 192 GB GPU Memory

System76 Thelio Mira AI is a Linux workstation for local AI development with dual NVIDIA RTX Pro 6000 GPUs, ECC GPU memory, and liquid cooling. It can be configured with up to a 16-core Ryzen 9000, up to 192 GB DDR5 RAM, and multiple NVMe/SATA drives, and supports dual PCIe 5.0 x16 GPUs for multi-GPU training. Built in Denver, Colorado, it uses open‑source hardware and runs Pop!_OS 24.04 LTS (COSMIC) or Ubuntu 24.04/26.04. Current price: $3,299 with 1–3 year warranty options; user-upgradeable.

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YuE2 · Frontier Music with Symbolic Planning

YuE2 is a unified music-generation model that fuses symbolic planning with audio synthesis. It writes an editable lead sheet via symbolic planning, then renders full songs with vocals and accompaniment. It outperforms rivals on benchmarks like SongBench and WildSongBench (best-of-8 mean 6.9632 vs 6.8721 for Suno v5). The system uses ~3.59B parameters and 28 layers, with AR/NAR attention sharing computations but separate normalization, projections, and MLPs. It relies on MERT2 for music representations and SheetSage2 for audio-to-score transcription, enabling editing and exploration from symbolic plans.

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Google will buy half the electricity of a nuclear power plant

Google will invest up to €13bn in Finland for AI infrastructure, including three new data centres and expanding the Hamina site, funded partly by a 22-year contract to buy up to 50% of output from Fortum’s Loviisa nuclear plant. Construction is planned for 2027–2028, with more than 37,000 jobs during build and a €3.6bn annual GDP boost. The plan reinforces Finland as a data-centre hub due to its cool climate and clean energy, and includes funds for energy projects, biodiversity, education and workforce development.

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Show HN: A browser IDE for m68000, Z80 assembly (and more), with graphics

ASM Editor is a web IDE for assembly languages (M68K, MIPS, RISC-V, X86, Z80) offering built-in documentation, code completion with semantic error checks, and extensive debugging tools (breakpoints, stepping, stack tracing, diffing, formatters) plus theming. It supports peripherals and interactive programs, an Exam tool that locks down the editor for students, and an AI Chat to write/run/debug assembly in-browser. It can be embedded via Embedder, and is associated with a peer-reviewed paper presented at the 2026 IEEE EDUCON conference.

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Technique for Manipulating Satellite Photos Now Reveals Ancient Images (2025)

NASA’s decorrelation stretch, developed to enhance satellite imagery, raises color contrasts to reveal subtle details. Jon Harman adapted it into the Dstretch plug-in for ImageJ (and later Android/iOS apps), using expanded color spaces and the Karhunen–Loève Transform. Originating from JPL work with ASTER, the method now helps archaeologists uncover faded rock art and other features. Since 2010–2012, Dstretch has revealed more than 200 paintings at Angkor Wat and been applied worldwide—Baja California, Beni Hassan, Writing-on-Stone, Årsand 1, Vlochos—and even to tattoos on mummies, among other uses.

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Recursion into madness

lcamtuf examines recursive feedback in generative AI: feeding a model’s own outputs back into prompts to rewrite a Chandler passage, and watching results drift far from the original. He contrasts image pipelines—where accumulated noise derails edits—with text, where per-token entropy is smaller and outputs tend to stabilize after many iterations, albeit still distantly. In a hands-on example, Gemini’s iterations swell with increasingly opaque metaphors before settling into a stark, venomous portrait of Mrs. Regan and the room. The piece reflects on the allure and risk of recursion and the limits of self-improvement in LLMs.

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The Deathray: A simple way for an untrusted site to freeze a Mac

Deathray is a WebGPU shader attack on untrusted sites that can freeze a Mac's UI. A small compute shader loops and writes a vector; a render shader reads from the same buffer, so the compute loop blocks the GPU and the WindowServer becomes unresponsive, sometimes triggering a kernel panic and reboot. Reproduces on macOS across Chrome, Firefox, and Safari; not on other OSes. A similar WebGL issue in 2023 (ShadyShader) led to CVE-2023-40441. Apple deems it not a security issue; fix timeline unclear. The author calls for better GPU pre-emption.

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Show HN: Vertumnus – printable posters of farmers' market produce seasonality

Could not summarize article.

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Bodily Oddities

A catalog of 136 odd, mostly harmless human-body quirks, organized by body region and type. It highlights phenomena from photic sneeze reflex and brain zaps to afterimages, derealization, and Alice in Wonderland syndrome. Each entry notes prevalence and origin (e.g., extra bones, attached earlobes, bifid uvula) and whether it’s benign or warrants medical attention. The page offers quick self-checks and emphasizes that these feelings can be scary but are normal; it’s not medical advice and advises consulting a doctor if worried.

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NTSB Issues Investigative Update on B-767 Runway Excursion Accident in Miami

An NTSB investigative update covers the Sept. 6 runway excursion of 21 Air Flight 7598, a Boeing 767-33A cargo jet at Miami International. CVR and FDR data have been recovered; CVR >2 hours, FDR ~54 hours. A CVR group will review the recording and prepare a transcript. In the CVR’s final minutes, flaps advanced toward 30°, speed concerns were discussed, and a go-around was attempted. FDR data show touchdowns at 158, 146, and 134 knots and a final groundspeed of 65 knots; no speed brakes or thrust reversers deployed. More materials on the NTSB page; ROC contact numbers provided.

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The part of Navier-Stokes no one is talking about

Could not summarize article.

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Detecting and countering misuse of AI: September 2026

Anthropic’s September 2026 Threat Intelligence report catalogs eight months of Claude misuse across seven harm areas: cyber operations, influence operations, surveillance, scams and fraud, biological misuse, conventional weapons, and illicit distillation. Threat actors—including suspected state-sponsored groups and financially motivated criminals—used Claude (Haiku, Sonnet, Opus) to accelerate reconnaissance, phishing, credential theft, data exfiltration, surveillance tooling, and even autonomous weapon research. The report documents diffusion of AI-enabled attack frameworks, AI-supply-chain abuse (stolen API keys and reseller networks), and rising automation across kill chains. Anthropic disrupted numerous campaigns, shared indicators with authorities, and urges stronger safeguards and trusted-access programs.

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OpenAI Agents API

OpenAI's Agents API runs durable, multi-agent workflows via a managed Codex harness. OpenAI hosts sessions, orchestration, and sandboxed environments; your app supplies models, tools, and execution. Core concepts: Agent (model, instructions, tools, MCPs), Environment (sandbox/computer), Session (task lifecycle), and Events/Items (I/O). Start with an OpenAI-hosted sandbox, configure capabilities, then send tasks and stream or webhook results. Supports subagents, multi-agent coordination, and tool calls (programmatic_tool_calling, web_search, MCP). Can run in OpenAI sandboxes or self-hosted. Pricing: model-based; sandboxes use container rates. Data residency US only; no ZDR. Examples: incident response, data analysis, code review.

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What happens when a GPU writes memory

Tracks a single STG.E store on an RTX 4090. The store travels warp→L1 coalescer→L1 (write-through)→L2 (36 slices, 16-way sets of 1024) via the crossbar, with data split into four 32-byte sectors. L2 caches the 128-byte line as dirty until eviction; writes may be written back via a write-back buffer. Replacement uses an RRPV scheme with an 8-dirty rule to avoid all-dirty bursts. In the kernel, data often never reaches DRAM; a cudaMemcpyDeviceToHost reads from L2 over PCIe. Memory visibility is controlled by fences: membar.cta, membar.gl (~140 ns), membar.sys (~1 µs). STG.E is fire-and-forget; fences make data globally visible.

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Proof of Capture: Apple Reference Image, but open source and using steganography

Apple Reference Image is an open-source approach to cryptographically prove a photo was captured, not AI-generated. It uses steganography and a signed perceptual hash; the signature sits in a 'digital negative' next to the photo rather than in metadata. At Recurse Center, María Benavente and Alex Hornstein built a Raspberry Pi–based camera with an ATECC608 secure element that signs a pHash and embeds a DWT/DCT watermark so the signature survives compression. The private key never leaves the chip and the project is under $100 to build. Apple’s flow isn’t fully public; both have limits.

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Genuine Creativity Is Your New Moat (2026)

The piece argues that in an era of AI-enabled easy replication, competitive edge comes from genuine creativity—inventing original ideas rather than chasing fancy features or slick aesthetics. Reflecting on the Flash era, it highlights that experimentation, even with flawed ideas, fuels breakthroughs. Today’s AI-generated sites are banal; to differentiate, businesses must adopt a habit of starting over from scratch, reexamining assumptions, and delivering novel interactions and experiences. AI can accelerate iteration, but humans must guide and sustain real, distinctive innovation.

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Show HN: Two small Chrome extensions for Hebrew text and dates

Chaim's Apps provides free Chrome extensions to simplify browsing, including Hebrew Date Bubble (right-click any date to see its Hebrew calendar equivalent) and Copy Without Nikud (copy Hebrew text with vowels removed via right-click or shortcut). More extensions are coming, and they also offer custom Chrome extension development for businesses. © 2026 Chaim Weiss.

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AI 2027 (2025)

AI 2027 envisions a rapid rise of superhuman AI, centered on OpenBrain/OpenAI/DeepMind-led progress and a China-led counter-move (DeepCent). It traces how AI R&D accelerates via amplification, autonomous coding, and neuralese memory, while wrestling with alignment, safety, security, and insider threats. The narrative spans 2025–2027, detailing weight theft, cyberwar, geopolitical tensions, and governance debates. It presents two endings—race and slowdown—illustrating divergent futures without advocating a particular path.

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The Four-Color Theorem Gets a Rare New Proof

A team led by Ken-ichi Kawarabayashi and Mikkel Thorup, with Carsten Thomassen and Bojan Mohar, delivered a new computer-assisted proof of the four-color theorem, offering a faster, parallel reducibility scheme for planar graphs. They identified an 8,202-configuration unavoidable set and reduced many configurations simultaneously, yielding an n log n coloring algorithm (far faster than the previous n^2). The result deepens understanding of planar graphs and may extend to other surfaces, though a purely noncomputer explanation remains elusive.

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