Oak Oliver Engineering — Engineering Pragmatic Systems

Wiring Apple's Neural Engine Into a Zig Inference Runtime: What We Learned Building ANE Dispatch

We built a runtime executor for on-device LLM inference in Zig, then wired Apple's Neural Engine into the dispatch layer. Here's what ANE actually requires — spatial packing, 32-element minimums, fence synchronization, and why fused kernels matter more than raw TFLOPS.

EngineeringPragmatic Systems

Wiring Apple's Neural Engine Into a Zig Inference Runtime: What We Learned Building ANE Dispatch

Porting Python's Spec-Kit to TypeScript: Using SDD to Build SDD

Porting Go-Rod to TypeScript: Browser Automation from Scratch

Porting Go's Huh? to TypeScript: Interactive Terminal Forms, Zero Dependencies

Porting Go's Glow to TypeScript: A Terminal Markdown Reader, Zero Dependencies

Porting Go's Terminal UI Ecosystem to TypeScript: Glamour and Lipgloss Are Now on npm

Porting Go's Bubble Tea to TypeScript: An Elm Architecture TUI Framework for Node.js

Full-Text Search Without Elasticsearch: BM25 in Pure TypeScript

Porting Go's Bubbles to TypeScript: 15 TUI Components, Zero Dependencies

I Rewrote Python's Fastest BM25 Library in TypeScript. It's Now 2x Faster With Zero Dependencies.

I Mined 47,000 Businesses from OpenStreetMap and Scored the Ones That Need a Website: Building an Automated Lead Gen Pipeline

Stop Exposing Your API Keys: How I Built a Five-Layer AI Proxy That Lets Users Call LLMs Without the Security Nightmare

BDD Is Not Dead: How Gherkin Scenarios Turned My Micro-SaaS Test Suite Into a Living Contract

14 Test Files, Zero Flaky Tests: How I Test Every API Domain in Elysia.js Without Jest or Vitest

From 1.2GB to 89MB: The Docker Multi-Stage Build That Changed How I Ship Bun Applications

I Run 6 Production Services on a Single €30/Month Server. Here's Why I Don't Need Kubernetes.

I Built Two Stripe Integrations in the Same Codebase. They Share Almost Zero Billing Code.

85/15 Almost Killed My Marketplace — The Hidden Economics of Two-Tier Billing

We Run Cron Jobs Inside the Bun Server Process (And You Should Too)

Stop Deducting Credits Immediately — Your Billing System Is a Ticking Time Bomb

480 Unique OG Images at Build Time: How We Made Every Page Shareable with Satori and resvg

40 Languages, 400KB Bundle — Why I Refuse to Ship Translations in JavaScript

We Built Our Own Hot Reload Because Bun Doesn't Have One (And It's Better)

480 Pages, 40 Locales, Zero Frameworks — How I Beat Next.js at International SEO

I Killed the Loading Spinner — Without Next.js, Without SSR, Without Any Framework

Your SSE Connections Are Lying to You — Here's What Happens When Users Reconnect

I Made Billing Invisible. Now My Developers Ship Paid Features Without Writing a Single Line of Payment Code.

Our Mentoring Platform Was Bleeding $17 Per Overrun Session. Then I Built a Timer That Kills Zoom Calls.

I Deleted Every Password From My Database. Here's Why My Users Are Safer Than Yours.

HMAC-Signed Vibe-to-Vibe Calls: How We Stopped Micro-Apps from Impersonating Each Other

I Processed 1.2 Billion Map Records on a $7/Month Server. The Lead Database Industry Doesn't Want You to Know This.

Layered Authorization in Elysia.js: Why Your Middleware Is Doing Too Much

Your SaaS Handles Money With a Balance Column. That's Why Your Numbers Don't Add Up at 2 AM.

I Deleted a 200MB Rust Binary From My Docker Image. My Deploys Have Never Been the Same.

Every User Gets Their Own Database. The Billing Architecture That Shouldn't Work — But Outperforms Everything.

Your Users Download 1.5MB of JavaScript to See a Landing Page. We Fixed It With an If Statement.

Our Entire SaaS Is One 13,870-Line File. We Tried Splitting It. We Put It Back.

We Use Subdomains as Security Boundaries. No Kubernetes. No Containers. Just Directories.

We Built a 340-Line Static Site Generator That Made Next.js Irrelevant. It Renders 480 Pages in 650ms.

We Replaced Node.js With Bun Across Every Production Service. Here's What Nobody Tells You.