Thoughts on the Bluesky public incident write-up
Back on April 4, the social media site Bluesky suffered a pretty big outage. I was delighted to discover that one of their engineers, Jim Calabro, published a public writeup about it: April 2026 Ou…
Anti-patterns in event modelling - Passive-Aggressive Events - Event-Driven.io
Event-Driven by Oskar Dudycz
Flat Error Codes Are Not Enough
Why you need nested, structured error data.
The Spec Layer
An AI agent implements a feature. The code compiles. The tests pass. It still misses the point. The wrong kind of correct. Most of our software tooling is optim
From Custom to Open: Scalable Network Probing and HTTP/3 Readiness with Prometheus
At Slack, we recently unified fragmented probing into a standardized system that improves reliability, simplifies operations, and enables better measurement of network performance at scale.
Aegis: a fully open-source FPGA, from the silicon up
Aegis is a fully open-source FPGA, from the silicon up. Open-source FPGA efforts have made huge strides: projects like Project IceStorm and Apicula reverse-engineer proprietary bitstream formats, O…
WolfIP Doesn’t Allocate
For some types of embedded systems — especially those that are safety-critical — it’s considered bad form to dynamically allocate memory during operation. While you can usually ar…
Kiki Is The Unknown Array Language
Kiki bills itself as the “array programming system of unknown origin.” We thought it reminded us of APL which, all by itself, isn’t a bad thing. The announcement post is decidedly…
Authenticate SSH With Your TPM
You probably don’t think about it much, but your PC probably has a TPM or Trusted Platform Module. Windows 11 requires one, and most often, it stores keys to validate your boot process. Most …
How NASA Built Artemis II’s Fault-Tolerant Computer – Communications of the ACM
Understanding and Coding the KV Cache in LLMs from Scratch
KV caches are one of the most critical techniques for efficient inference in LLMs in production.
TurboQuant: Redefining AI efficiency with extreme compression
TurboQuant: Reducing LLM Memory Usage With Vector Quantization
Large language models (LLMs) aren’t actually giant computer brains. Instead, they are massive vector spaces in which the probabilities of tokens occurring in a specific order is encoded. Bill…
Architecture as Code to Teach Humans and Agents About Architecture
A funny thing happened on the way to writing our book Architecture as Code—the entire industry shifted. Generally, we write books iteratively—starting with a
Build an ARP Toolkit — Attack and Detection in C
I spend a lot of time looking at alerts that say "possible MITM activity" or "ARP anomaly detected." They show up in the SIEM, get triaged, and usually turn out to be benign — a NIC failover, a miscon
Why we used STOMP with WebSocket?
webSocketSession.send("call someone") sends raw bytes over a persistent connection. That's it. No routing, no subscriptions, no message…
Components of A Coding Agent
How coding agents use tools, memory, and repo context to make LLMs work better in practice
History of eBPF
Journey from classic BPF in the nineties to the modern 64-bit virtual machine.
How I Built a Local Embedding Pipeline in Elixir
Extract docs from BEAM bytecode, embed with Ortex, search with sqlite_vec, serve through MCP to Claude Code. Everything local.
Railway | The all-in-one intelligent cloud provider
Railway is a full-stack cloud for deploying web apps, servers, databases, and more with automatic scaling, monitoring, and security.
Nix Language - Nix 2.34.1 Reference Manual
Specification of the Nix Language
Caution
How CertKit Works - Automated SSL Certificate Management
CertKit automates your entire certificate lifecycle. Issue certificates via ACME, deploy them with the CertKit Agent, and verify everything with real TLS checks. No open ports, no ACME on your servers, no DNS changes.
CRDTs in Practice: Building a Block Editor Engine from Scratch
Everything your CRDT paper didn't tell you about actually building one
Kalman Filter Explained Through Examples
Easy and intuitive Kalman Filter tutorial
Multi-Core By Default
On multi-core programming, not as a special-case technique, but as a new dimension in all code.
Making of words.zip
How infinite is it really?
JADEx: Null-Safety and Final-by-Default for Safer Java
Every Java team eventually has that conversation.
Someone opens a PR, there's a NullPointerException in production, and someone says: "We should just migrate to Kotlin."
I've had that conversation. An
Securing Hex, the Backbone of the Elixir Ecosystem
Paraxial.io Completes Security Audit of Hex Package Manager
Why Are People Bad at Evaluating Risks?
Using evidence or data to communicate risk to the American public can be a fool’s errand.