Advancements in Running Node and WebAssembly in the Browser

In this Hasty Treat, Scott and Wes talk about two new services that allow you to run Node in the browser, WebContainers + NodeBox. Why Node in the browser? How does it work? And what are the differences and limitations of the services?

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• 00:25 Welcome
• 01:14 Sponsor: Sentry
• 02:45 Webcontainers and NodeBox
• Introducing WebContainers
• Code Sandbox
• CodePen
• Replit
• GitHub Codespaces
• 06:42 Why Node.js in the browser?
• 11:08 How does it work?
• 13:10 Clientside APIs
• 14:27 Using iFrame to proxy messages
• 17:39 Are these open source?
• 19:22 Differences between the two services
• 21:10 Wes to Figma, Scott to Penpot
• Figma
• Penpot
• 24:51 Limitations

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