axel.land
A browser-based remake of ActiveWorlds. Explore 3D worlds, meet other players, and build.
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Available for freelance projects
Hey, I'm Axel.
I ship software your business can rely on.
Freelance engineer for the whole stack. I help teams launch faster, untangle what's fragile, and build systems that don't fall over at 3am.
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Latest articles
Timing-safe equal: comparing secrets without leaking them
Why a normal string comparison can leak confirmation tokens byte by byte, how timingSafeEqual fixes it, and a live benchmark you can run in the browser.
SecurityJavaScriptCryptographyAug 4, 2026 · 9 min read
When postMessage is too slow: Shared Memory patterns for Web Workers
An overview of Web Worker communication: Comlink for control, transferables for big handoffs, and SharedArrayBuffer patterns for high-frequency updates.
JavaScriptWeb WorkersPerformanceJul 21, 2026 · 12 min read
Optimizing an Astro Site for 100 PageSpeed
A practical guide to pushing an Astro site to a 100 PageSpeed score: CSS budgets, fonts, images, and the Speed Index fixes that actually matter.
AstroPerformanceWebJul 20, 2026 · 10 min read