WordPress

Turning a Theme-Bound Generative Art System into a Maintainable WordPress Plugin

~ YIN Renlong

I began this migration for a practical reason: a background feature that had started as a theme customization had grown into a modular browser-based geometry engine. It still worked, but the theme now owned administration, persistence, mosaics, twelve generators, rendering, and a public badge. I wanted a cleaner boundary without losing the behaviour already proven on the live site.

The result was a site-specific standalone WordPress plugin, a deliberately minimal theme fallback, and a workflow in which the current VPS…
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Rethinking Yin’s Background Studio with Agentic AI (When the Harness Joins the Project)

~ YIN Renlong

I built Yin’s Background Studio through a semi-automated conversation: AI proposed bounded changes, I ran them on a live WordPress server, and the resulting logs and screenshots determined the next move. The system eventually grew from one repeating background into classic mosaics, scattered collage, persistence, density and colour controls. Now I want to try the next workflow seriously: let an agent inspect, edit, run, see and verify the project itself.

The existing method is my evidence base, not the method…
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Designing a Central WordPress-to-GitHub Backup Plugin

~ YIN Renlong

New function updated: the centralized backup dashboard can now schedule all four WordPress backups automatically. The system runs them sequentially during an off-peak UTC window, while the existing global lock remains the final authority. In other words, four websites may queue politely, but they are not allowed to charge through the VPS door together.

Automatic Sequential Backups

The original dashboard supported manual background backups for four isolated WordPress installations. That worked well, but it still required an administrator to open…
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Incremental Development of a WordPress GIF-WebP Mosaic Background Engine

~ YIN Renlong

Yin’s Background Studio (as shown in the background of this website) began as a small WordPress theme enhancement for selecting one repeating background and evolved into a validated composition engine supporting static, random, weighted, persistent, reduced-motion, mosaic and scattered-collage modes. The project demonstrates how to extend a mature theme safely while preserving existing media, limiting animation costs, avoiding layout shift and making every production change recoverable.

The original problem

The website originally displayed one selected background at a time. An…
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Engineering Dynamic Image/Video Backgrounds in a WordPress Theme

~ YIN Renlong

Yin’s Background Studio began as a refactoring task: replace a fragile, hard-coded random background selector with a native WordPress administration surface. The finished system stores multiple media-backed backgrounds in one option, supports static and random selection modes, handles reduced-motion fallbacks, previews images and videos, and validates manual sizing on both the client and server while preserving rollback at every deployment.

Technical environment

The implementation was developed on a small, resource-constrained WordPress server. At the time of the work, the confirmed…
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Migrating Legacy WordPress Sites (PHP 7.1) to PHP 8.4 on an IPv6-Only VPS

~ YIN Renlong

Migrating one old WordPress site can be unpredictable. Migrating four of them simultaneously—from an obsolete operating system, an old PHP runtime, aging themes, and years of accumulated plugins—requires a process designed around containment rather than optimism.

The goal of this migration was not simply to copy files onto a new server. It was to establish a clean, verifiable baseline:

  • current WordPress core;
  • PHP 8.4;
  • Nginx and MariaDB on a modern Debian system;
  • Cloudflare-proxied public HTTPS;
  • the smallest practical active-plugin set;…
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