vistacker is a bit of a passion project for me to stay organized. While I've been in management for many years, I switched to writing lots of code especially when I was one of the co-founders at…

With self-supervised learning, we can train neural networks without the need for manually labelled datasets.

This is the third—and likely final—post in a series I’ve been writing over the past two and a half years on using AI for software development. The journey began with my early experiences of how LLMs…

Four of the five steps in every unary RPC handler are wire plumbing. Pin the service function signature and they fit in one generic adapter per transport.

Coding agents write impressive first drafts. But under the surface, corners are cut, details are missing, and technical debt accumulates with every change. The problem is not the model. It is that…

In Part 1, I added tree-sitter tools for structural code reading. In Part 1.5, I locked those tools behind a secure factory. In Part 2, I added an OODA loop with a rule engine and verify phase. In…

A note to myself on survival analysis — KM curves, log-rank tests & Cox models 🧮 If I wrote it the way I understood it, maybe I’ll actually remember it 🤞 Motivations We see survival…

On Apple platforms, the development experience was designed around making the compile-link-debug cycle as fast as possible. For debugging, that means that rather than processing large amounts of…

Hello! One of my long term projects on here is figuring out how to write frontend Javascript without using Node or any other server JS runtime. One issue I run into a lot in my frontend JS projects…

Tales From the Organization Settings Page

Building client-side routing with vanilla JavaScript: What started as a simple experiment revealed the hidden complexity that SPA frameworks solve for you.

I went to the seventh North Bay Python and am having feelings about it.

Analog literals Analog literals are a cute C++ gadget proposed by Eelis in the seminal article Multi-Dimensional Analog Literals. That forward-thinking monument to human mischief finally allowed C++…

A request leaves the VP as one question, passes through four people, and arrives at the analyst as a different question entirely. The number that comes back answers the wrong thing — perfectly.…

Understanding and explaining the "kamakiri" MediaTek BROM exploit

The whole searchable surface on the App Store is 160 characters — App Name (30) + Subtitle (30) + Keywords (100). This skill extracts signals from your codebase and generates a compliant, optimised…

Installing DoomHelix, configuring ACP, and using an agent panel for explain, chat, fix, and refactor commands inside Helix.

Everything in your repo is part of the prompt. The loudest signal wins — even when it's wrong.

How to edit the UE5 Engine Shaders to have Colored Penumbra

I updated my app todometer after several years of it lying dormant, and it's better than ever!

I want to set up a n8n self hosting instance on my server and run a marketing funnel for this site. I want to present a pop up like substack to subscribe to a newsletter and build an audience. And at…

A WGSL implementation of Conway's Game of Life that uses tiles, a halo region, and a staging buffer to keep the update in-place on a single storage buffer without cross-workgroup races. ~280 lines of…

The new development workflow with Antigravity and GitHub MCP is now fully operational. This post serves as a test to ensure that everything from local editing to repository integration is working…

In my last blog post about OpenClaw I wrote about my growing setup of some basic day-to-day automation tasks.

Swift is a language that rewards clarity and safety. Most of the time, its features feel obvious once you see them in action. The keyword…

2026, what a year to be alive. AI, LLMs, agents, agentic coding. On one side, the hype train. On the other, narratives built to invalidate everything the hype touches. In this article I'll dig into…

vitaut.net https://vitaut.net/posts/2026/every-float/ - In my previous post about Żmij, a high-performance binary-to-decimal floating-point conversion library, I drew a small diagram of a rounding…

I have lately been experimenting with an agentic workflow where one agent coordinates a large coding task, while short-lived worktree agents implement isolated phases in their own branches. A tmux…

Linguists have a word for the ums, uhs, ers, and elongated versions (ummmm, uhhhhh) that pad spoken English: disfluencies. I don’t record a lot of voice audio, but a few friends do, and they…

Build per-plan API rate limits (free, pro, enterprise) using Rails 8.2's dynamic rate_limit options, with no Rack::Attack or custom middleware.

I discuss issues with the original Ractor implementation in Ruby 3.0 and the improvements made in Ruby 4.0. Along the way, I introduce Ractor::Wrapper, a Ruby class that wraps legacy…

Most 'DDD-ish' code I review enforces business rules everywhere except where it should: in the model itself. The same rule ends up duplicated across handlers, validators, and controllers, and each…

Right, so, this started with me looking at , seeing a 98% context reduction claim, and immediately thinking: bull shite. Not because the idea is bad. The idea is good. The bit that made me twitch was…

This post is part 3 in my ongoing series on fast Fourier transform algorithms. You may wish to read part 1 and part 2 before reading this article.

Disclaimer: I am not a cryptographer. There may be serious bugs or side channels! The minimum MTU for IPv6 is 1280 octets; if you subtract the 40-octet IPv6 header and the 8-octet UDP header, you get…

Not all data engineering is the same. The modern analytics shop, the enterprise legacy estate, the product engine, the regulated pipeline, and the internal platform each play by different rules — and…

Product, Product, Product Working this past week with Jason Adams has given me a brand-new appreciation for the category of ideas that we engineers call "product." For a long time, I've discussed the…

After teaching the harness to load AGENTS.md, my mind went back to thinking about the tools, and wondered, do we even need multiple tools?

More and more iOS apps are using local ai models for running functions and chats to power advanced features and currently each downloads and stores their own large model to do this. If you have 3 or…

ZeroClaw is an open-source agent runtime. By default it expects a frontier model API key such as Claude, OpenAI, etc. This guide shows how to use a local Qwen3.6 model served by vLLM on an NVIDIA DGX…

Prerender pages before a click using one JSON script tag. No framework, no build step. Pure progressive enhancement for instant navigation.

How I run OpenAI Symphony 24/7 on Zo Computer with Linear, project skills, and a token usage dashboard.

This Spectrimage palette extractor started as a sidecar to image color analysis, but grew into its own feature.

Today I learned Python 3.15 will get a new sentinel built-in. Sentinel values are unique placeholder values that are commonly used in programming. Python 3.15 ships with a new built-in sentinel that…

AI coding agents are amazing, but lean on them too hard and your engineering skills atrophy. Aviation already lived through this. Here's what we can steal from how they fixed it.

Two ambitious project branches emerged from the v0.27 milestone. The first is removing the Big Kernel Lock. The second — lifting taskman to user mode — gets its own post. This one covers v0.28…

Writing a column for Six Colors this week (appears Monday) in answer to a reader question, I realized the utility I wanted to recommend that they use didn’t exist. So I wrote it. Please welcome a…

Keeping a Postgres queue healthy — PlanetScale Simeon Griggs explains the challenges and dynamics of queue workloads in Postgres. A job queue in Postgres is desirable because of transactionality, and…

At some point at work I had to delete a large Elasticsearch index. Straightforward task, you’d think. The index had grown out of control, nothing useful in it anymore, and it was eating disk.…

If you spend enough time scrolling through LinkedIn or skimming Medium and Sub stack newsletters right now, you’d think the end of the “IT job” is already here. With the rise of coding…