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Introduction to the Jukebox Podcast

Welcome to the Jukebox Podcast from WP Tavern. My name is Nathan Wrigley, and I’m excited to introduce our guest, Seth Rubenstein. Jukebox is a podcast dedicated to all things WordPress, including the people, events, plugins, blocks, themes, and more. In this episode, we’ll be discussing block composability, what it is, and how it’s shaping WordPress’s future.

About Seth Rubenstein

Seth is the head engineer at the Pew Research Center, where he leads a team of developers managing the organization’s WordPress-based publishing platform for its news site. He’s passionate about open source and ensures that everything his team builds not only meets the Pew Research Center’s needs but also benefits the wider community. Seth contributes to the Gutenberg project and strives to share their solutions, always asking how their work can be given back to help others in the WordPress ecosystem.

Block Composability

Seth shares fascinating stories from his recent work, breaking down what block composability means. It’s the ability to build modular, reusable, and even interactive blocks that work seamlessly together, empowering both developers and end-users to create sophisticated web applications within the familiar WordPress block editor. We discuss the conversation getting into some of WordPress’s newest and most promising features, including the Block Bindings API, Block Bits, and the Interactivity API.

The Future of WordPress

Seth explains how these tools open a world of possibilities, like building interactive quizzes, dynamically updating content, or even prefetching data, all using blocks, without having to rely on custom React frontends or heavy server-side processing. He also talks about the path forward for democratizing these advanced capabilities, discussing current limitations, the potential for new UI tools, and what’s still missing in the quest for truly responsive device contextual blocks.

Conclusion

Throughout the episode, Seth makes a compelling case for why now is a golden opportunity for developers and plugin builders to start experimenting, get involved, and shape the next evolution of WordPress as a cutting-edge web application platform. Whether you’re a developer curious about the future of Gutenberg or an editor dreaming of more drag-and-drop web app power, this episode is for you.

Getting in Touch with Seth

If you’re interested in finding out more, you can find all the links in the show notes by heading to wptavern.com/podcast, where you’ll find all the other episodes as well. Seth can be found at sethrubenstein.info, and you can also find him on Twitter or Bluesky. Please note that he prefers Bluesky over Twitter.

Final Thoughts

I think that’s probably the sweet spot to end it. That’s a very optimistic future Seth has painted there. Now it just needs a bunch of developers to get on board and try to figure this out and make it straightforward so people like me can use it. Thank you, Seth, for chatting with me today, and thank you to our listeners for tuning in.