Matt Mullenweg Revives 2007 Piplet Concept at WordCamp US 2026

During a fireside chat at WordCamp US 2026, Matt Mullenweg revived a concept he'd first explored back in 2007: Piplets, self-modifying PHP files where all the data lives inside the file itself.

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Automattic

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The company behind WordPress.com, WooCommerce, Tumblr, and Jetpack, empowering individuals and businesses to build and manage their online presence.

Shopify

$1.0B

Shopify provides a leading e-commerce platform that enables businesses of all sizes to create online stores, manage products, process payments, and fulfill orders, simplifying digital sales globally.

"The idea of a Piplet is a self-modifying PHP file with all the data actually embedded in the file," Mullenweg explained. "It's a single file. There's no third party packages. Minimal complexity."

The proof-of-concept, rewritten by colleague Dan Lou, demoed a to-do app where data gets appended to the end of the file. Benchmarks showed 25 megabytes of storage on 128MB of memory with 50-millisecond load times. Mullenweg wants to spin up a directory for these on WordPress.org, complete with fork-and-remix social features.

Piplets represent a return to minimalism that directly contradicts WordPress's reputation for bloat, and Mullenweg positioning this as a 'directory' suggests Automattic may be building an alternative to the plugin directory for simple single-file applications. The framework is language-agnostic. With AI, Mullenweg suggested transpilation to Python, Ruby, Kotlin, or Zig would be straightforward. He floated MIT licensing over GPL for the simplicity.

Live Launch and a Profile Overhaul

The conversation was punctuated by a live WordPress 7.1 launch. Mullenweg accidentally delayed pressing the button, prompting the audience to shout "Don't panic." The release hit 1.4 million downloads by end of the session.

Also announced: WordPress profiles now use clean URLs like w.org/matt instead of the long numeric IDs. Mullenweg pushed for these to replace Twitter handles on conference badges. "We're the WordPress people. We should be promoting our WordPress profiles and blog URLs, not these random other social networks," he said.

AI as Infrastructure, Not a Brand

Mullenweg expressed skepticism about AI branding. "I wonder if something we've been doing wrong is emphasizing AI too much because we're kind of technical people," he said. "There might be a huge branding problem right now and actually a lot of campaigning against it."

He praised Qwen3.8, noting the 27-billion parameter version runs on a modern MacBook. "You're getting Opus 5.6 performance for basically 1/120th the cost," he said. He encouraged experimentation with local models, citing their applicability to medicine and math problems that had gone unsolved for decades.

On open source AI, Mullenweg sees it as critical infrastructure. "The benefits of open source aren't just generating the code. It's finding code that already works. It's collaborating. It's a license which maintains user rights," he said. GitHub's capacity demands suggest open source is exploding, not dying.

Rethinking the Plugin Directory

Mullenweg questioned whether the plugin directory needs more submissions. "I don't know if we definitely need more contributors. I would argue we maybe don't need more plugins anymore. Don't know if we need more themes. We need maybe fewer things that work better."

He proposed ranking plugins by community participation over commercial versus non-commercial distinctions. "Who's actually participating in the pro-social positive things that grow the open source community in a way that benefits all of us?" he asked, putting the idea into future plugin team discussions.

Cross-CMS Collaboration

Pressed on tribalism between WordPress, Drupal, and Joomla, Mullenweg acknowledged the infighting and proposed collaboration. "If you look at the W3Techs rankings, WordPress is still number one, but Drupal and Joomla have been completely surpassed by Shopify and Squarespace," he noted.

His invitation: "Let's have an open source thing we all work together on. What are the best things about Drupal? What can we learn? What can we contribute back?"