Anthropic Just Made a Shocking $100M+ Move

"Now AI labs acquire JavaScript runtimes faster than your CI/CD pipeline completes."

Hello Builders! 👋

Anthropic acquired Bun, the blazingly fast JavaScript runtime that's been eating Node's lunch. This is wild for two reasons: first, why does an AI company need a JS runtime? Second, Bun was actually making money as an independent tool.

The play here is obvious once you think about it. Claude's already generating tons of code, and developers are copy-pasting it into their projects. If Anthropic controls the runtime, they can optimize the entire loop from AI generation to execution. Imagine Claude not just writing your code, but running it in a sandbox, debugging it, and shipping it—all in their ecosystem.

The 944-comment Hacker News thread is predictably split between "this is genius" and "RIP independent dev tools." Either way, the AI companies are now buying the picks and shovels.

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Wild that Anthropic is betting big enough on dev tooling to straight-up buy Bun. Makes you wonder if the real moat in AI isn't the models anymore—it's owning the entire workflow from IDE to deployment.

What are you building/shipping this week?

Keep shipping,

P.S. If you're still manually configuring your v0 projects, check out that new sidebar feature. Your future self will thank you.