Jarred Sumner
Software engineer
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Jul 14, 2026
NextJS Was Too Slow...So He Made Bun??! Jarred Sumner & The Story Of Bun | Theo - t3․gg
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48:25TheoHOST
And what's Deno's excuse?

Jarred SumnerGUEST
I think being, I think, I do think J- that JavaScript on the server should feel a lot like JavaScript in a browser.

Jarred SumnerGUEST
And Bun is also inspired by that to some extent, that, and that's why Bun both tries to implement a lot of web APIs, like WebSocket, for example, while also...

Jarred SumnerGUEST
But there's just this balance of I think Bun will end up having- Like a standards based API for a lot of things, and then a Bun-based API that is, like, faster.

Jarred SumnerGUEST
An example of that right now, which needs documentation, is that the readable stream...

Jarred SumnerGUEST
So the, I've-- In one of the benchmarks, uh, on the, the Lang page, like the React SSR is a few times faster than other, uh, JavaScript runtimes.
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57:41TheoHOST
What can we do with that?" And building from the ground up that way.