SkyCraft puts Minecraft inside Skyrim

SkyCraft is a mod that does something that sounds like a joke until you read the commit log: it runs Minecraft inside Skyrim. An SKSE plugin written in C++ and a Fabric mod written in Java are linked over shared memory, and Minecraft’s physics, inventory, HUD, blocks and combat play out in Skyrim’s world, drawn […]

Jeff fine-tunes tiny models to make decisions in one forward pass

Most LLM calls in production are not conversations. They are routing decisions: which support queue does this ticket belong in, is this comment abusive, which intent did the user just express. A new open-source project called Jeff targets exactly that workload with fine-tunes of Qwen3.5 (0.8B and 2B) and Gemma 4 E2B that return a […]

The lunar terminator paradox, worked out with code

Why the moon points the wrong way at sunset There is an old astronomical puzzle that most people meet while camping: after the sun sets, the lit part of the moon sometimes seems to point up, toward empty sky, instead of down toward where the sun just went. It is called the lunar terminator paradox, […]

unreal-agent brings async-first harness design to coding agents

A harness that never makes the model wait unreal-agent has been climbing GitHub’s trending list all week, at roughly 1.9k stars four days after it appeared, and the pitch behind it is simple enough to repeat in one line: the same model, doing the same work, up to 40 percent cheaper, because the harness never […]

SourceHut build logs hid a wormable XSS that could take over accounts

A vulnerability researcher known as Arusekk published a writeup on September 23 describing CVE-2026-92973, a cross-site scripting flaw in the ansi2html library that let anyone who could inject text into a SourceHut build log take over the accounts of people who viewed it. The bug had been sitting in the wild for close to four […]

virtio-nvgpu shares one Nvidia GPU across KVM guests at near-native speed

GPU sharing between virtual machines has always involved a trade you did not want to make. Passthrough gives one VM the whole card, vGPU licensing costs money and locks you to Nvidia’s stack, and API translation layers like Venus give up meaningful performance by translating every graphics call. A small project called virtio-nvgpu takes a […]

Z.ai open-sources its whole coding agent stack with ZCode

The harness, not just the model Z.ai, the company behind the GLM model family, open-sourced ZCode this week, and the interesting part is the scope. This is not a CLI script and a README. The repository contains the desktop client, the browser workspace, the backend services, the shared UI, and the agent runtime that powers […]

Xiaomi’s MiMo-V2.6 takes the open-weight crown and shows its RL receipts

A car company just published the strongest open weights on the board Xiaomi released and fully open-sourced MiMo-V2.6 on September 21, and the flagship Pro model lands at 46 on the Artificial Analysis Intelligence Index. That score puts it ahead of every other open-weight model on that leaderboard, above xAI’s Grok 4.6 and Google’s Gemini […]

Qwen Image 2.1 lands as open weights with a license catch

Alibaba’s Qwen team released Qwen Image 2.1 as open weights on September 20, and it hit the top of Hacker News within hours. The model unifies text-to-image generation and image editing in a single 7B-parameter network, adds native transparency support, and ships with day-zero integrations across Diffusers, ComfyUI, and vLLM. There is one detail you […]

Compiler optimizations, proven in Lean, squeeze 19 percent out of Skia rendering

A paper accepted at OOPSLA 2026 applies compiler theory to something most of us never think of as a compiler target: the draw commands behind every web page. In Semantics for 2D Rasterization, three researchers from the University of Utah built a formal model of Skia, the graphics library that renders Chrome, Firefox, Android, Flutter, […]

PyPy 8.0.0 ships first Python 3.12 support and starts the abi3 wheels push

The PyPy team released PyPy 8.0.0 on September 19, 2026, and it is a bigger deal than the version number suggests. Yes, there is the expected round of interpreter updates. The headline, though, is buried in the release notes: this version lays the real groundwork for CPython’s limited ABI, which could finally close the gap […]

Alibaba open-sources RADAR, an expert-level AI for abdominal CT diagnosis

Alibaba’s research arm has open-sourced RADAR, a vision-language model that reads contrast-enhanced abdominal CT scans and flags close to 150 distinct conditions, from liver and pancreatic cancers to fatty liver disease and acute appendicitis. The release came alongside a peer-reviewed paper in Science, which is a rarer credential than most medical AI press releases can […]