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New top story on Hacker News: Show HN: Nightwatch – a Mac menu-bar app that tells you when tonight is clear

Show HN: Nightwatch – a Mac menu-bar app that tells you when tonight is clear 9 by delphidolphin | 1 comments on Hacker News. Here in the north of England clear nights are at a premium, and it's never guaranteed that you'll be able to see anything but cloud. That's why I developed Nightwatch, so that I could be notified when one of those precious few nights where I could see into the heavens was available. Finding out whether tonight was worth setting up meant reading forecast charts every evening, usually to learn that it was not. Nightwatch does that reading for me. It sits in the Mac's menu bar and refreshes the forecast every 30 minutes. An hour before sunset it sends one notification, and only if there is an unbroken run of clear sky in astronomical darkness long enough to image in. Otherwise it says nothing: no news means "clouds". I hope this is useful for other hobbyist stargazers too! When I was a child I wanted desperately to be an astronaut or a ...
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New top story on Hacker News: Show HN: Our space game has a built-in RISC-V emulator that runs Linux

Show HN: Our space game has a built-in RISC-V emulator that runs Linux 20 by nor-and-or-not | 9 comments on Hacker News. (Edit: original URL was https://againstallodds.games/ , but we've switched it to https://againstallodds.games/blog/2026/10/03/our-risc-v-emul... in response to user requests for explanation.) We're a tiny indie studio, all with a background in the demoscene and for about 3 years now we're developing a space planet terraforming game called SEEDS - Echoes Beneath the Sands. Our protagonist Naxiah is stranded on a small, desolated planet. You're working for an intergalactic distributor of seeds and terraforming equipment, to kickstart new planets in far away galaxies. You must deliver seeds and utilities to an unchartered region, but on your way, you crash on a small planet. Luckily, you have some equipment with you in the ship, so you're able to spawn a base and survive. But for how long? And is the planet really deserted..? :) Well, of course...
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New top story on Hacker News: Show HN: Open-source model routing for coding agents at Astra-level performance

Show HN: Open-source model routing for coding agents at Astra-level performance 17 by adchurch | 1 comments on Hacker News. A few months ago we started building a model router for coding agents because we thought we could outperform any single model with an ensemble approach. Recently we’ve achieved that milestone and I want to talk about how we did it. First of all, a quick explanation: the Weave Router ( https://ift.tt/rY0eCqj ) plugs into any coding agent (e.g. Claude Code or Codex) and intelligently switches between LLMs. So, for example, Astra handles tricky debugging or complex system design tasks, and Deepseek v4 Flash handles simple frontend updates. What we’re announcing today is our new routing model, which we’re calling Weave Router 2.0. We benchmarked 2.0 against GPT-6 Astra on Terminal Bench 4.0 and SWE Atlas. On both benchmarks, the router had equivalent pass rates. On Terminal Bench, the router hit 52% of Astra’s cost, and completed tasks 2.2x faster. On SWE Atlas, th...
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New top story on Hacker News: Show HN: Reladraw – A diagram language where you decide where to place things

Show HN: Reladraw – A diagram language where you decide where to place things 22 by jpwalsh234 | 3 comments on Hacker News. I love making diagrams to help understand, plan, etc. However, the options are (A) auto-placement languages like Mermaid or Graphviz (which don't let me decide how the diagram looks), or (B) software like Draw.io which are powerful but are very time consuming (and inefficient for agents to manipulate). I wanted to have the benefits of both, where you can define a diagram in a diagram language, but also retain a high degree of control over what the diagram looks like. I also wanted this to work well for humans and agents. On the Github link, there's a playground where you can try it out without installation. There's also instructions for a simple npm install and for installing a skill you can use with Claude or other agents.
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