The 14KB Design System: Styling 30 Interactive Web Apps with Zero Frameworks and 100/100 Core Web Vitals
Why we ditched Tailwind and CSS-in-JS to build an accessible, dark/light ready, responsive utility suite in pure native CSS.
Urban Mixo Engineering
Engineering and architectural insights behind Urban Mixo: a suite of 30 enterprise-grade computational utilities across Personal Finance, Clinical Health, and STEM Productivity. Built on an uncompromising zero-trust, 100% client-side architecture using vanilla JavaScript and the Web Crypto API. Zero tracking, zero server logging, sub-second execution.
Latest articles
Why new Date() Lies to You: Building Timezone-Proof Temporal Engines in Vanilla JavaScript
How we solved daylight saving drift, month-end clamping, and overnight clock math across 5 production tools without Moment.js or date-fns.
Financial Engineering in Vanilla JavaScript: Building Bank-Grade Amortization and Pricing Models Without Math Libraries
How we solved binary floating-point drift, 360-month annuity amortization schedules, and margin-versus-markup equations using native ECMAScript primitives.
Why Urban Mixo: The Architectural Case for a Zero-Backend, Zero-Tracking Utility Web
Why we rebuilt 30 essential financial, clinical, and developer tools to run 100% client-side in browser memory with zero dependencies and 100/100 Core Web Vitals.