Evidence receipt / evaluation
Published · transcript-backedEric Simons: evaluation
13 Mar 2025 Lenny's Podcast Inside Bolt: From near-death to ~$40m ARR in 5 months—one of the fastest-growing products in history | Eric Simons (founder and CEO of StackBlitz)
“It's not like something you'd necessarily see in the UI, but it's how fast it is, and how reliable it is. And this is because of how we are actually doing the compute, because what's going on here is when you type into, whether it's Bolt or another product, it has to spin up a dev environment to actually make that application.”
Source trail
Everything needed to verify it.
- Speaker
- Eric Simons
- Attribution
- Verified speaker
- Claim type
- evaluation
- Recorded
- 13 Mar 2025
- Publisher
- Lenny's Podcast
Transcript context
…Let's get to a demo of Bolt, so people can actually see what this looks like in action. And as you go through it, if you can even point out stuff that is different from other products in the space, say Lovable, VZERO, Replit, that other folks have heard about, that'd be useful. Awesome. Cool. Yeah, so this is Bolt, you just go to bolt.new. Things that I think are really interesting about Bolt. One is, it's just dead simple. Whether you're logged in or logged out, it's the same UI, it's extremely simple, it's just a text box. And I think that the biggest difference between Bolt and the other stuff out there, it's actually subtle. It's not like something you'd necessarily see in the UI, but it's how fast it is, and how reliable it is. And this is because of how we are actually doing the compute, because what's going on here is when you type into, whether it's Bolt or another product, it has to spin up a dev environment to actually make that application. So there needs to be some operating system somewhere that's running it. Everyone else runs those things on cloud servers, which those can take minutes to boot up, and they often will run into issues, and then you can end up literally stuck and have to contact support to get it done, and get it unstuck. With Bolt, and for the past seven years, what our company's been doing has been building an operating system that runs inside of your browser locally, using your CPU. So we have a very permissive free tier, and it's insanely fast, and it's insanely reliable. So if I want to, just as a quick example of this say, "Make a clone of Spotify," and just hit enter. This thing's already getting to work, and already, on the right here, this is a full dev environment. This is an actual operating system, running inside of my browser. And I can run commands on it, et cetera. And really, what you're seeing down here, this terminal and kind of what's backing it, this is what took us really five, six, seven years to build, and make so reliable. There would not be a Bolt without this technology called WebContainer, that allows us to run an operating system in the browser. Because what's going on here is, our AI agent for Bolt has bidirectional communication with this operating system. It's writing code, it's running the dev server for this thing, it's going to go ahead and spin this up. You can see how fast this is, in a matter of 60 seconds I said, "Make me a Spotify clone," and now we have one. And it looks pretty darn good. That looks really good.…
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