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Building a web server in aarch64 assembly to give my life (a lack of) meaning
a static http server in aarch64 assembly
New
The latest blog posts to take off on Hacker News. 4,387 posts.
182
The Serial TTL connector we deserve
Goodbye dangling Dupont pins, hello Julet E-Bike connector. I have them now everywhere, from my router to my servers.
183
Diskless Linux boot using ZFS, iSCSI and PXE
Diskless Linux Boot
184
Setting up a Sun Ray server on OpenIndiana Hipster 2025.10
fresh OI install, clean slate, let's see how well the updated OI Sun Ray support works
185
How fast is a macOS VM, and how small could it be?
Latest Geekbench performance figures for macOS VMs, and testing of how few cores and how little memory is really needed: could you run a macOS VM usefully on a MacBook Neo?
186
Discovering hard disk physical geometry through microbenchmarking (2019)
Modern hard drives store an incredible amount of data in a small space, and are still the default choice for high-capacity (though not highest-performance) storage. While hard drives have been around since the 1950s, the current 3.5″ form factor (actually 4″ wide) appeared in the early 1980s. Since then, the capacity…
187
Tar Files Created on macOS Display Errors When Extracting on Linux (2024)
tar.gz files seem to include extra files starting with ._. When these are extracted on Linux, a bunch of errors are displayed.
188
Virtualisation on Apple Silicon Macs is different
Virtualising macOS, Linux and Windows on Intel Macs has been relatively straightforward, and device support left to the developer. That won’t work for Apple silicon Macs. This explains what h…
189
Linux 7.0 Broke PostgreSQL: The Preemption Regression Explained
Linux 7.0 delivered roughly half the throughput of Linux 6.x on the same hardware and workload.
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Networking changes coming in macOS 27
We are under warning that macOS 27 is likely to remove support for AFP, and lately some additional requirements for connection to certain servers. This explains how these could affect you.
192
Mo RAM, Mo Problems (2025)
As a retro-computer enthusiast, it seems that parts are either insanely expensive or dirt cheap. If the first case has obvious problems, the second can also lead to issues.
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Familiarity is the enemy: On why Enterprise systems have failed for 60 years
My thoughts on why enterprise knowledge systems have failed for sixty years, and what might finally replace them. A couple of weeks ago I demoed one part of what I have been building to a senior exec at a global enterprise - someone who had been asked to lead and guide
194
I am building a cloud
Today is fundraising announcement day . As is the nature of writing for a larger audience, it is a formal, safe announcement. As it should be. Writing must necessarily become impersonal at scale. But I would like to write something personal about why I am doing this. What is the goal of building exe.dev ? I am already…
195
Columnar Storage Is Normalization
Something I didn't understand for a while is that the process of turning row-oriented data into column-oriented data isn't a totally bespoke, foreign concept...
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What async promised and what it delivered
The async/await saga is a story where each chapter solves the previous chapter's worst problem while introducing new structural costs. The sequential syntax that made async code readable also obscures the thing that matters: which operations actually depend on each other.
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Theseus, a Static Windows Emulator
An new old approach to emulation.
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Windows Server 2025 Runs Better on ARM
My personal website and blog
199
Zero-Copy GPU Inference from WebAssembly on Apple Silicon
A WebAssembly module's linear memory can be shared directly with the Apple Silicon GPU: no copies, no serialization, no intermediate buffers. Here's how the zero-copy chain works, what we measured, and what it enables for stateful AI inference.
200
Optimizing Ruby Path Methods
Back in November last year, I started a new job at Intercom, and one of the first projects I got to work on was improving the Intercom monolith CI with some of my new colleagues.
201
Running a Minecraft Server and more on a 1960s UNIVAC Computer
18 bit registers, 90kb of memory, ones’ complement, powered by RISC-V.
202
A simplified model of Fil-C
I've seen lots of chatter about Fil-C recently, which pitches itself as a memory safe implementation of C/C++. You can read the gritty details of how this is achieved, but for people coming across it for the first time, I think there is value in showing a simplified version, as once you've understood the simplified…
203
Zero-copy protobuf and ConnectRPC for Rust
As part of my work at Anthropic, I open sourced two Rust crates that fill a gap in the RPC ecosystem: buffa, a pure-Rust Protocol Buffers…
204
Multi-Agentic Software Development Is a Distributed Systems Problem
Recently, I've been thinking a lot about scaffolding and languages for managing systems of LLMs coordinating with each other — new programming languages might be the ideal solution for this area.
205
How to make Firefox builds 17% faster
In the previous post, I mentioned that buildcache has some unique properties compared to ccache and sccache. One of them is its Lua plugin system, which lets you write custom wrappers for programs that aren’t compilers in the traditional sense. With Bug 2027655 now merged, we can use this to cache Firefox’s WebIDL…
206
State of Homelab 2026
Evolution of a self-hosting hobby: from clueless to amateur.
207
Tracking down a 25% Regression on LLVM RISC-V
Similar to the previous post, this post covers my analysis of a benchmark on RISC-V targets. Unlike the previous post, I was able to land a patch to eliminate the performance gap to GCC (for this benchmark)!
208
Apple Silicon and Virtual Machines: Beating the 2 VM Limit (2023)
macOS Internals Deep Dive Building a Development Kernel Collection Configuring our Mac to boot the Development Kernel Collection Putting our machine to work! When did Apple grace us with this feature? Undoing our work for OS updates Closing Thoughts
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OpenClaw’s memory is unreliable, and you don’t know when it will break
We made a YouTube video showing how NonBioS can deploy OpenClaw on a fresh Linux VM automatically - zero human intervention, about 7 minutes start to finish.
210
You can't trust macOS Privacy and Security settings
How to gain access to the contents of privacy-protected folders even though Privacy & Security settings say that access is denied.