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[API/SDK] API proposed by Chrome: Declarative partial updates

[Other] Reverse engineering circuitry in a Spacelab computer from 1980

[Other] z386: An Open-Source 80386 Built Around Original Microcode

[Other] 80386 Microcode Disassembled

[Other] Electrobun 2.0 will be decoupled from Bun due to the Rust rewrite <a href="https:&#x2F;&#x2F;xcancel.com&#x2F;YoavCodes&#x2F;status&#x2F;2058064720553222567" rel="nofollow">https:&#x2F;&#x2F;xcancel.com&#x2F;YoavCodes&#x2F;status&#x2F;2058064720553222567</a>

[Other] Making deep learning go brrrr from first principles (2022)

[Database] Models.dev: open-source database of AI model specs, pricing, and capabilities

[DevOps] Show HN: OpenRig – a control plane for multi-agent coding topologies Hi HN, I’m Mike, the founder of OpenRig.<p>I built this because my Claude Code + Codex setup kept forming little &quot;topologies&quot; of long-lived agents that worked well together, but the terminal sprawl was intense. So I built a primitive the agents could intuitively reach for to save and recreate these setups on the fly. This then led to more agent-first primitives like coordination, declarative workflow patterns, workspaces, etc.<p>Several months in and these &quot;rigs&quot; I manage with openrig require a lot less babysitting and I can manage more projects at once without getting overwhelmed.<p>The short version: OpenRig is a way to save and operate that topology instead of rebuilding it by hand every time.<p>Demo video: <a href="https:&#x2F;&#x2F;youtu.be&#x2F;yCFSRnPDFqY?si=n5e627d0CU3X3bmE" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;yCFSRnPDFqY?si=n5e627d0CU3X3bmE</a><p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;mvschwarz&#x2F;openrig" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;mvschwarz&#x2F;openrig</a>

[Other] GitHub introduces staged publishing and new install-time controls for NPM

[Other] Microsoft starts canceling Claude Code licenses <a href="https:&#x2F;&#x2F;archive.ph&#x2F;WfCta" rel="nofollow">https:&#x2F;&#x2F;archive.ph&#x2F;WfCta</a>

[Other] TorQ: Kdb+ Production Framework

[Other] I Bypassed Adobe and Microsoft to Build a Git-Tracked Book Production Pipeline

[Build/Deploy] Show HN: Darnix – Darwin Built with Nix The Darwin kernel (XNU) has been open source since 1999. But &quot;open source&quot; and &quot;you can actually build and boot it&quot; are very different things. XNU depends on proprietary tooling, kexts, and a bunch of open source projects published without a build system.<p>Darnix builds the whole thing with Nix. The kernel, the filesystem, the boot image, all the way to a running QEMU instance. We patched XNU to run on QEMU without kexts, ported HFS+ from a kernel extension into the kernel itself, fixed GRUB&#x27;s Mach-O loader, and wired it all together as a flake. The build is fully sandboxed. No root, no volume mounting, no device access, no network.<p>The bigger idea is a revival of PureDarwin (<a href="https:&#x2F;&#x2F;www.puredarwin.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.puredarwin.org&#x2F;</a>), a standalone OS on Apple&#x27;s open source Darwin layer, with Nix managing everything above the kernel. Sort of like a Nix OS on XNU instead of Linux.<p>Right now the kernel boots, mounts a ramdisk, and runs a single static binary. Next step is a shell.<p><a href="https:&#x2F;&#x2F;github.com&#x2F;jonhermansen&#x2F;darnix" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;jonhermansen&#x2F;darnix</a><p>Technical details and the full list of patches are in the README. I would love to hear from anyone who’s thought about this space!<p>---<p>Darnix is not affiliated with or endorsed by Apple Inc. This is not macOS. Apple, macOS, and related trademarks are the property of Apple Inc. Darwin is licensed under the APSL.

[Other] DeepSeek makes the V4 Pro price discount permanent &gt; (3) The deepseek-v4-pro model API pricing will be officially adjusted to 1&#x2F;4 of the original price after the 75% discount promotion ends on 2026&#x2F;05&#x2F;31 15:59 UTC.<p><a href="https:&#x2F;&#x2F;x.com&#x2F;deepseek_ai&#x2F;status&#x2F;2057854261699195173" rel="nofollow">https:&#x2F;&#x2F;x.com&#x2F;deepseek_ai&#x2F;status&#x2F;2057854261699195173</a><p>Related ongoing thread:<p><i>DeepSeek reasonix, DeepSeek native coding agent with high caching and low cost</i> - <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=48256953">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=48256953</a> - May 2026 (135 comments)

[Other] Show HN: Pablo – a Chrome extension that copies UI from any website Pablo is a Chrome extension that copies the HTML and CSS behind any element you hover.<p>It captures computed styles, fonts (with @font-face and Google Fonts links), CSS keyframes, and animation props from GSAP and Framer Motion. The output is structured so it pastes cleanly into Claude Code, Cursor, or Codex when you want to rebuild a component in your own stack.<p>Manifest v3, no host permissions, no backend. Free.<p><a href="https:&#x2F;&#x2F;usepablo.dev" rel="nofollow">https:&#x2F;&#x2F;usepablo.dev</a><p>Happy to answer questions about how the extraction works, and would love to hear about sites where the output breaks.

[Other] Bytecode VMs in surprising places (2024)

[Other] Show HN: ShadowCat – file transfer through QR Codes in a Browser

[API/SDK] Show HN: I made an open-source memory layer for agents Store memories, auto-extract entities and relationships, search semantically. MCP server + REST API + SDKs. Self-hostable, cloud option, MIT license.

[Other] Buildcraft Is a Compiler Problem

[Other] Show HN: Sylph – the open-source company brain behind my YC startup Hello HN! I&#x27;m Claire, founder of nao Labs (YC X25). Two months ago I started building a company brain in a git repo. Now I fully run my company with 8 AI agents, 20+ skills, and a self-learning context repo.<p>I built it in a git repo because I refused to lock into any tool - not a context layer, not a specific agent harness. Today I&#x27;m open sourcing it so others can build their own.<p>Sylph is the open source version of the company brain I use. It gives you the structure to host your own company context, build skills, create AI agents, and already has a self-learning loop scaffolded. It is a Git repo, with no lock-in on any tool, that can work with any agent: Claude Code, Codex, Cursor.<p>Sylph is made for you to make your own: fork it, run &#x2F;sylph-setup, and it will build your own company brain according to your own context.<p>Repo: github.com&#x2F;getnao&#x2F;sylph<p>How I built it: <a href="https:&#x2F;&#x2F;thenewaiorder.substack.com&#x2F;p&#x2F;i-built-a-company-brain-to-run-my" rel="nofollow">https:&#x2F;&#x2F;thenewaiorder.substack.com&#x2F;p&#x2F;i-built-a-company-brain...</a><p>Tell me what you think, and if you&#x27;ve got some tips if you built an AI brain for your company too!