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
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Behind the Products

Thoughts, experiments and observations from developing PHP applications, improving websites, creating content and building self-hosted software.

5 Jobs a Small Business Can Automate With AI
Featured Article
App Ideas 10 min read

5 Jobs a Small Business Can Automate With AI

AI automation does not necessarily mean replacing an employee. For a small business, it can mean removing repetitive pieces of customer support, administration, content production, sales research and financial paperwork while keeping people involved where judgement matters.

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.

Website Architecture Explained for Non-Developers
Web Development

Website Architecture Explained for Non-Developers

A website may look like a collection of pages, but underneath it is a network of templates, URLs, databases, content relationships and backend systems. Using Cordinant as a real example, I look at website architecture from a non-developer perspective and explain what is actually happening behind the pages visitors see.

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.

How I Reduced Contact Form Bot Spam Without Adding CAPTCHA
Web Development

How I Reduced Contact Form Bot Spam Without Adding CAPTCHA

I wanted to reduce automated submissions on the Cordinant contact form without making every visitor complete a CAPTCHA. The solution became a combination of small server-side checks: CSRF protection, a honeypot, submission timing, validation and rate limiting.

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.

Practical Development

PHP architecture, project structure, deployment and reusable solutions.

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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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