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Insights

Notes on building better software.

Practical thinking on engineering, performance, SEO and product — written by the people who build.

How to Validate a SaaS Idea Before You Build
Featured Engineering

How to Validate a SaaS Idea Before You Build

Learn how to validate SaaS idea demand before development with focused interviews, landing pages and evidence for more sound product decisions.

8 min read · Read article →
How to Choose a Software Development Agency
Engineering

How to Choose a Software Development Agency

Learn how to choose software development agency partners who can clarify scope, protect code quality, and deliver a product that performs after launch.

8 min read
How Much Does Bespoke Software Cost in the UK?
Engineering

How Much Does Bespoke Software Cost in the UK?

How much does bespoke software cost? See how DELLIUX prices projects, what really drives the cost, and how to budget for a build that lasts for years.

7 min read
Engineering

Why Core Web Vitals should shape your build, not your launch checklist

Performance isn't a phase you bolt on at the end. Here's how we bake speed into architecture decisions from day one — and why it pays off in rankings and revenue.

2 min read
SEO

The technical SEO checklist we run on every launch

The under-the-hood work that actually moves rankings — structured data, crawlability and speed.

2 min read
Mobile

React Native vs native: how we choose in 2026

A pragmatic framework for deciding between cross-platform and fully native builds.

2 min read
Product

Prototyping before production: the cheapest way to be wrong

Why we validate with clickable prototypes before writing a line of production code.

2 min read
Engineering

Designing databases that survive your growth

Schema decisions that quietly decide whether scaling is a tweak or a rewrite.

2 min read
Process

Fixed scope or dedicated team? A decision guide

How to pick the engagement model that fits your stage, budget and roadmap.

2 min read
Performance

Shaving a website from 4s to under 1s

A real teardown of the changes that made the biggest difference to load time.

2 min read

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