A Configuration-Driven Approach

One of the easiest ways for a WordPress theme to become hard to maintain is letting configuration drift into every template, helper, and one-off conditional.

Boilerplate takes a different approach. Instead of treating theme behavior as something that gets hardcoded throughout the project, it centralizes the important decisions inside config.php. That file becomes the PHP-side source of truth for the theme’s identity, versioning, text domain, feature flags, layout decisions, and other project-level defaults.

The point is simple: a theme should be easy to shape before you start rewriting it.

A better starting point

Every WordPress project starts with decisions. Does this site need comments? Does it need social sharing? Should the build version show in the footer? Are post formats enabled? Are specific layout features turned on or off? Does the client need a simple marketing site, a content-heavy publication, an ecommerce build, or something more custom?

With a configuration-driven theme, the early setup process becomes much cleaner. You can work through the major theme decisions in one place, establish a strong baseline, and then start building from there. When a client is technically competent enough to participate in that conversation, even better – config.php gives you a concrete file to discuss instead of a vague pile of hidden implementation details.

Configuration is not documentation, but it helps

A well-organized configuration file also makes a theme easier to teach.

When another developer enters the project, config.php gives them an immediate overview of how the theme is intended to behave. They can see the naming conventions, the available feature flags, the theme constants, and the project assumptions before diving into individual templates. That does not replace formal documentation, but it creates a much better first read of the codebase.

This is one of the core ideas behind Boilerplate: the theme should communicate its structure clearly. The code should help developers understand where decisions belong.

The short version

config.php exists so Boilerplate can be customized deliberately instead of accidentally.