Articles, Ideas & Resources

Articles About PHP, UX and Digital Products

A growing collection of articles, ideas, comparisons and useful resources about PHP development, UX design, SEO, websites and digital products.

New additions published as the blog grows
Research & ideas alongside personal observations
Clear and useful without unnecessary complexity
Digital Products

Digital Products Articles From Real Product Work

Browse focused articles about Digital Products, the ideas, decisions and challenges behind building digital products.

PHP Budget Management System Source Code: What to Look For
Featured Article
Digital Products 18 min read

PHP Budget Management System Source Code: What to Look For

A PHP budget management system may look complete in a demo, but its real value depends on more than dashboards and charts. From database design and security to installation, licensing and customisation, this article explores what developers should consider when choosing source code for a financial management project.

App Prototype vs App Design: What’s the Difference?
Digital Products

App Prototype vs App Design: What’s the Difference?

An app prototype and an app design may look surprisingly similar, but they serve different purposes. Drawing on my experience building digital products independently, I explore what each one reveals, what it can hide and why the process is rarely as linear as it appears.

What Is a Source-Code Product and Who Actually Buys One?
Digital Products

What Is a Source-Code Product and Who Actually Buys One?

Buying a source-code product is different from subscribing to software or hiring someone to build it from scratch. Developers, freelancers, agencies, founders and businesses can buy the same application for very different reasons. So what are they actually paying for?

Custom Software vs SaaS: Convenience, Control and the Cost of Choosing
Digital Products

Custom Software vs SaaS: Convenience, Control and the Cost of Choosing

Custom software and SaaS are often presented as competing solutions, but they serve different priorities. This article explores ownership, subscription costs, flexibility, maintenance and vendor dependence, alongside my reasons for building self-hosted software rather than operating a SaaS business.

The Real Cost of Building a Digital Product
Digital Products

The Real Cost of Building a Digital Product

Building a digital product costs far more than writing code. Planning, UX, documentation, screenshots, SEO, launch work, maintenance and constant revision all consume time. This article looks at the less visible work that turns functioning software into something another person can actually discover, understand and use.

Website vs Web Application: What's the Real Difference?
Digital Products

Website vs Web Application: What's the Real Difference?

Where does a website end and a web application begin? After building Cordinant beyond simple public pages into databases, admin tools and structured content systems, the distinction became much less obvious. This article explores the difference between websites and web applications - and the large grey area between them.

What This Blog Explores

What You'll Find in This Blog

A collection of practical articles, product ideas, and resources on technical research, development, SEO and content for anyone interested in creating websites, apps and digital products.

Web Development

Articles about building websites, tools and applications.

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Digital Products

Thoughts and articles about creating and selling digital products.

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From Articles to Working Products

Explore the Applications Behind the Ideas

The principles discussed in these articles are applied in real self-hosted products, not only described in theory.

My Budget

A self-hosted PHP and MySQL personal finance application with transactions, reports, goals, exports and an installer.

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Captain's Toolkit

An offline-first marine operations PWA with voyages, fuel, maintenance, crew records, checklists and optional PHP backup tools.

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About the Author

Written by the Independent Developer Behind Cordinant

I'm Tatiana, the independent creator behind Cordinant. I enjoy building self-hosted PHP applications, websites and digital products, using AI as an important part of my everyday workflow. This blog isn't a collection of tutorials or definitive answers. It's a place where I share ideas, experiments, project stories and interesting topics that come up while creating Cordinant and exploring software development.

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