Curve danger, no installer required
Hey ๐ โ today's mix has a workshop feel: a browser tool for plotter nerds, a paper trying to make infinite terrain both beautiful and useful, and a quiet eulogy for a music-on-the-blockchain experiment that didn't make it. Let's get into it.
Show HN: Kurvengefahr โ browser CAD/CAM for pen plotters

Kurvengefahr โ German for "curve danger," the road sign for winding stretches ahead, which is either a great name or a fair warning โ is a CAD/CAM tool for pen plotters that runs entirely in the browser, no install required. You draw and prep your paths right there in a tab, then send them off to the plotter, which fits nicely with the growing wave of browser-native creative-coding tools that skip the setup tax entirely. Plotter folks tend to be particular about their tooling, so a lightweight, zero-install option is the kind of thing that could actually get used rather than just bookmarked. (via HN discussion)
InfiniteDiffusion: bridging learned fidelity and procedural utility for open-world terrain generation
This SIGGRAPH 2026 paper takes diffusion models โ usually bound to fixed image sizes and a fixed seed โ and reworks the sampling process so it becomes training-free, infinite in extent, and randomly accessible, like classic procedural noise but with the visual richness diffusion is known for. Demoed on real-time terrain generation, it's a neat bit of engineering: you get the "walk forever and it still looks amazing" property of Perlin noise combined with the texture quality that only learned models tend to produce. Worth a look if you've ever wished your procedural worlds looked less like procedural worlds. (via Lobsters discussion)
Not your keys, not your songs

Components News marks the shutdown of Nina Protocol, a blockchain-based music distribution platform, as part of its running dashboard on the state of decentralized media. It's a small, sober data point in the larger story of "own your art on-chain" experiments meeting the reality of upkeep, adoption, and who actually shows up to listen.
Quick hits
- Show HN: Codebase Posters โ turn any Git repo into generative poster art โ your commit history, framed and hung on the wall.
- I love LLMs, I hate hype โ geohot draws a line between the tool and the marketing around it.
- Old and new apps, via modern coding agents โ Terence Tao takes coding agents out for a spin.
- Don't you mean extinct? โ a bit of tech history with real narrative teeth.
- Show HN: Godot running Gemma 4 inference in GDScript and Vulkan compute shaders โ running an LLM inside your game engine, because why not.
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