UI Principles for SaaS Applications
Creating interfaces that users actually want to spend time in. Moving beyond basic utility to digital environments that spark joy.
Welcome back to your workspace
For years, Single Page Applications (SPAs) struggled with massive JavaScript bundles. Next.js 15 fully realizes the promise of React Server Components (RSC), allowing us to ship zero-JavaScript HTML for heavily static pages while retaining dynamic islands of interactivity.
Our recent migration of a mid-sized e-commerce platform yielded a 65% reduction in initial JavaScript payload. This directly translated to a 40% improvement in mobile conversion rates, as Time to Interactive (TTI) plummeted on low-end 4G devices.
The new caching topography in Next.js 15 provides granular control over what gets CDN-cached and what renders at request time. Using the new `unstable_cache` APIs, we're building hybrid data pipelines that are faster than purely static generation.

Technical Adviser, Renav Limited
Vishal has 13+ years of experience in full-stack software development, specialising in Laravel, Next.js and cloud architecture. He leads technical direction at Renav Limited, a UK-based bespoke software agency.
Creating interfaces that users actually want to spend time in. Moving beyond basic utility to digital environments that spark joy.
How we architect performant backend solutions for enterprise clients entirely within the Next.js ecosystem without dedicated backend servers.