Federated Systems at Scale with Zephyr Cloud | Module Federation, Edge Deploys, Reverse Tree Shaking

How do you deploy federated front ends to the edge in 150 milliseconds? In this episode, Zack Chapple, CEO and Co-founder of Zephyr Cloud, and Nestor Lopez, Platform Engineer at Zephyr Cloud, break down everything developers need to know about micro frontends, module federation, and deploying at global scale without the infrastructure pain.

Zack's journey started at a consulting company working with enterprises like SAP to add module federation support to Angular, which eventually revealed all the pain points of scaling federated architectures. That led to Medusa, then to Zephyr Cloud, the platform he describes as "Kubernetes for the front end." Nestor's path started eight years ago with Sencha.js and iframes, long before module federation existed, and brought him to Zephyr through open source contributions to TRPC and other projects.

We cover why module federation is "Docker for the front end," how Zephyr deploys with one line of code and no CI/CD pipeline, their reverse tree shaking technique that recomposes federated bundles into a monolith at the edge, how Nestor deployed 5,200+ micro frontends as a single video, their federated MCP server for enterprise AI orchestration, and a TC39 proposal to fix ESM module unloading in V8. We also talk about pricing, open source contributions, and what it's really like to build a startup with four kids.

Whether you're an enterprise team trying to ship frontend independently across dozens of teams, or a solo developer who just wants to deploy without setting up a CI/CD pipeline, this conversation covers the full spectrum.

Key Topics:

- Micro frontends explained through the microservices and Kubernetes analogy

- Module federation as "Docker for the front end" and Zephyr as the orchestration layer

- End-to-end walkthrough: from bundler to global edge deploy in ~150ms

- No repo required, Zephyr hooks into any bundler and deploys on build

- Reverse tree shaking: monolith performance with micro frontend dev experience

- The Chrome extension for hot-swapping MFEs in any environment

- Federated MCP servers built on module federation for enterprise AI

- TC39 proposal to fix ESM module unloading and enable live HMR on Node.js

- Bring your own cloud: Cloudflare, AWS, Fastly

- Pricing: free for solo, $19/seat for teams, org-wide for enterprise

- Mobile support through Metro and desktop through Tauri

- Open source contributions and financially supporting projects like RSPack, SWC, and Tailwind

🔗 FOLLOW ZACK

💼 LinkedIn: https://www.linkedin.com/in/zackarychapple/

🐦 X/Twitter: https://x.com/Zackary_Chapple

🐙 GitHub: https://github.com/zackarychapple

🔗 FOLLOW NESTOR

💼 LinkedIn: https://www.linkedin.com/in/nstlopez/

🐦 X/Twitter: https://x.com/nstlopez

🌐 Blog: https://nstlopez.com

🎙️ FOLLOW & SUBSCRIBE

📸 Instagram: https://www.instagram.com/senorsatscale/

📸 Instagram: https://www.instagram.com/neciudev

🎙 Podcast URL: https://neciudan.dev/senors-at-scale

📬 Newsletter: https://neciudan.dev/subscribe

💼 LinkedIn: https://www.linkedin.com/in/neciudan

💼 LinkedIn: https://www.linkedin.com/company/senors-scale/

📚 ADDITIONAL RESOURCES

- Zephyr Cloud: https://zephyr-cloud.io

- Module Federation: https://module-federation.io

- RSPack: https://rspack.dev

- Hono: https://hono.dev

- shadcn/ui: https://ui.shadcn.com

#MicroFrontends #ModuleFederation #ZephyrCloud #Frontend #WebDev #PlatformEngineering #DevEx #EdgeComputing #Kubernetes #SenorsAtScale #OpenSource #Startup

💬 What's the most painful deployment workflow you've ever had to deal with? Share your stories in the comments!