Speakers: Fellyph Cintra

  • Previewing GitHub branches with WordPress Playground

    WordPress Playground DocumentationSpeaker: Fellyph Cintra

    December 9, 2025 — This video demonstrates a method used by the WordPress Playground team to streamline development reviews. This technique addresses the common pain point of needing complex local environments or relying on static screenshots to share work in progress. By leveraging the capabilities of WordPress Playground, developers can generate a unique URL that instantly spins up a temporary, live WordPress environment loaded with specific modifications from plugins, themes, or blueprints.
    The video illustrates this process by taking the raw JSON link of a blueprint file—even one residing in an active GitHub Pull Request—and appending it to the WordPress Playground URL. This action automatically initializes WordPress in the browser, complete with the requested configurations and changes. The key benefit is that reviewers, teammates, or clients can test the functionality directly without needing any prior setup or configuration on their local machine, ensuring faster feedback cycles for code contributions related to themes, plugins, and site blueprints.

  • Introduction to WordPress Playground landing page

    WordPress Playground DocumentationSpeaker: Fellyph Cintra

    December 9, 2025 — WordPress has received a new landing page to explain the capabilities of the platform and what is possible with the WordPress Playground.

    For whom the Playground is built, and how the users can benefit from it.

  • Using WordPress Playground to work with AI agents

    WordPress Playground DocumentationSpeaker: Fellyph Cintra

    December 9, 2025 — In this video, I share how you can use the WordPress Playground to integrate with AI agents. This is an experiment with GitHub Copilot agents.

    This flow can be used to execute small tasks for a WordPress Plugin, such as refactoring code or updating documentation. The playground can serve as a base to validate the AI agent’s code changes using E2E tests.

  • WordPress Playground: The Path to Test Automation

    WordCamp Wrocław 2025, WordPress Playground DocumentationSpeaker: Fellyph Cintra

    November 24, 2025 — Discover how WordPress Playground is transforming the testing landscape for WordPress development. This session explores the powerful testing capabilities of WordPress Playground, a revolutionary tool that runs complete WordPress instances directly in your browser using WebAssembly.
    We’ll journey through the comprehensive testing ecosystem that WordPress Playground enables, starting with simple PR preview implementations that allow instant testing of changes without server setup. From there, we’ll advance to integration testing strategies, demonstrating how to validate plugin and theme compatibility across different WordPress configurations seamlessly.
    The session progresses to end-to-end (E2E) testing implementation, showing how WordPress Playground’s browser-based environment creates consistent, reliable testing conditions. Finally, we’ll explore cutting-edge AI integrations that can automatically generate and maintain CI/CD pipelines, reducing manual testing overhead while improving code quality.

  • How to test the next WordPress release with WordPress Playground

    WordPress Playground DocumentationSpeaker: Fellyph Cintra

    November 13, 2025 — WordPress 6.9 is approaching, and we are in a crucial phase of shipping the last major version in 2025. I’m talking about the testing phase, and do you know that you can contribute to WordPress Core without any special setup?

    In this video, I demonstrate how WordPress Playground enables you to access the latest beta or RC version via a direct link. You can test the new features scheduled for 6.9, and check if your Plugins and Themes are compatible with the next WordPress release.

    You can apply the same process to future WordPress major releases

  • Is WordPress playground only for developers?

    WordPress Playground Content, WordPress Playground DocumentationSpeaker: Fellyph Cintra

    October 25, 2025 — The misconception that the WordPress Playground is exclusively for experienced developers is common, but it couldn’t be further from the truth! In this video, Developer Advocate Felipe reveals why the WordPress Playground—which is simply WordPress running instantly in your browser—is an essential tool for all types of users.

    Think of the WordPress Playground as your personal, risk-free car simulator for WordPress. You can experiment, make mistakes, and learn without ever damaging a live site.
    In this video, you will learn:
    What is the WordPress Playground? A simple explanation of how this innovative tool works as a safe, temporary WordPress instance in your browser.
    Benefits for Learners: Discover how to inspect blocks, edit pages, and understand the structure of a WordPress site without the need for complex local setup.

    Benefits for Site Owners: Use the WordPress Playground to safely test new themes, compare different plugins (like SEO tools), and preview major layout changes before deploying them to your live website.

    Benefits for Developers/Experts: Learn how to rapidly test new features (like Full Site Editing), instantly spin up specific PHP or WordPress versions, and accelerate your development workflows.
    Saving Your Progress: We debunk the myth that the Playground is always temporary! Learn how to save your custom setups and share them via a unique URL or download them as a ZIP file.

    Whether you are a complete beginner looking to understand content creation or a seasoned professional testing the limits of the latest features, the WordPress Playground is the fast, accessible solution you need.

  • Running WordPress directly from the JavaScript code with runCLI

    WordPress Playground Content, WordPress Playground DocumentationSpeaker: Fellyph Cintra

    October 22, 2025 — This video demonstrates a powerful development feature of the WordPress Playground: the ability to spin up a complete WordPress instance directly within a Node.js/TypeScript environment using the runCli from @wp-playground/cli package.
    Fellyph from Automattic shows how developers can leverage this tool not just for simple preview environments, but for advanced automation, particularly End-to-End (E2E) testing.
    What You Will Learn:
    Programmatic WordPress Instances: How to import and use the @wp-playground/cli package to run a full WordPress server directly from your TypeScript application.
    Custom Configuration: Specifying required PHP versions (e.g., 8.3) and WordPress versions.
    E2E Testing with Playwright: Setting up a robust testing workflow using the Playground CLI combined with Playwright to ensure your plugins and features work as expected.
    The Power of Blueprints: Using blueprints within the runCli method to pre-configure your WordPress environment exactly how you need it for testing (e.g., setting site titles, creating custom files, installing and activating plugins) before test execution begins.
    This functionality opens the door for developers to create fast, reliable, and entirely isolated WordPress testing environments that are essential for modern development workflows.

  • Melhora as tuas aplicações WordPress com AI Services

    WordCamp Lisboa 2025, WordPress Playground DocumentationSpeaker: Fellyph Cintra

    May 19, 2025 — Discover the transformative potential of AI within WordPress, focusing on the innovative AI playground. This session will demonstrate how to seamlessly integrate cutting-edge AI services into your applications, unlocking new possibilities. We’ll explore practical applications like generating image descriptions, building intelligent chatbots, and implementing personalized product suggestions, showcasing the versatility of AI in enriching your WordPress projects. This talk is designed to equip you with the knowledge to harness AI, enabling you to create more intelligent and user-friendly WordPress experiences. Whether you’re a developer, designer, or website owner, you’ll gain valuable insights into elevating your projects with the latest AI advancements. Learn how to leverage the AI playground to build dynamic, AI-powered features directly within your WordPress environment. This talk will be held in portuguese, with slides in english.

    Presentation Slides »

  • What is new in CSS?

    WordCamp Europe 2023Speaker: Fellyph Cintra

    October 1, 2023 — The last few years have brought many new features to CSS that open up new possibilities for designing web applications and WordPress is not out of this new wave of CSS features. The committee called Interop, which is one of those responsible for this change around CSS development, was created to coordinate feature releases and standardization across browsers.

    In this talk, you’ll learn how to use CSS features like container queries, layers, CSS @properties, and the new “has” selector and see how they can affect WordPress theme development.

    Let’s review some everyday situations and see how these new features can help us.

    In this talk, you’ll learn how to use CSS features like container queries, layers, and :has() and see how they can affect WordPress theme development. Let’s go through some everyday situations and see how these new features can help us.

  • O que há de novo em CSS?

    WordCamp Lisboa 2023Speaker: Fellyph Cintra

    May 24, 2023 — Os últimos anos trouxeram muitos novos recursos para CSS. No ano passado, um comitê chamado interop foi criado para coordenar novos lançamentos e recursos mais padronizados entre os navegadores.

    Esta ação está ajudando os desenvolvedores a usar esses recursos sem se preocupar com suporte, abrindo novas possibilidades para o design de aplicativos da web. E o ecossistema WordPress não está fora desses novos recursos.

    Nesta palestra, aprenderá como recursos como consultas de contêiner, camadas e :has() podem afetar o desenvolvimento do tema WordPress. Vamos passar por algumas situações do dia a dia e ver como esses novos recursos podem nos ajudar.