791: LLRT The Serverless Runtime w/ Richard Davison

791: LLRT The Serverless Runtime w/ Richard Davison

Scott and Wes chat with Richard Davison from AWS about LLRT, a new runtime tailored specifically for Lambda. They dive into the benefits of using LLRT, challenges with JavaScript in serverless, and why Rust was chosen for its development. Show Notes 00:00 Welcome to Syntax! 01:07 Who is Richard Davison? 05:11 What is LLRT and what’s the motivation for building it? 08:25 AWS Lambda example. 11:20 What makes LLRT specifically tailored to Lambda? 14:55 Brought to you by Sentry.io. 15:22 Node.js in Lambda. 16:00 What are some challenges that people have with JavaScript in serverless? 17:20 Lambda memory configuration. 19:23 Managing cost of compute. 21:29 Simpler and faster than Node, Bun, Dino, but not a replacement. 22:31 The benchmarks. 27:00 Quick.js, the main reason for the performance gains. Fabrice Bellard QuickJS. 28:03 The Quick.js engine. 30:35 What was the reason behind creating Quick.js? 33:46 What made you pick Rust for LLRT? 36:34 Abstractions and the value of speed. 39:08 The JIT Compiler. 42:38 Compile cache. 43:27 De-optimizations. 44:59 Node.js Compat, what to use and avoid with LLRT. GitHub AWS Labs Compatibility Chart. 47:52 Will you target with WinterCG spec? 50:22 Streams API. 52:06 What about WebSockets? 53:10 Is this going to be promoted from a labs project? 54:49 Sick Picks + Shameless Plugs. Sick Picks Richard: QuickJS Engine, JSLinux. Shameless Plugs Richard: Javascript Hit us up on Socials! Syntax: X Instagram Tiktok LinkedIn Threads Wes: X Instagram Tiktok LinkedIn Threads Scott: X Instagram Tiktok LinkedIn Threads Randy: X Instagram YouTube Threads

Jaksot(976)

912: Why did Figma buy a CMS?

912: Why did Figma buy a CMS?

Wes chats with James Mikrut, founder of Payload CMS, about being acquired by Figma! They discuss building an open source business, the future of UI design, AI interfaces, and what this means for the f...

17 Kesä 202526min

911: Browsers in 2025: Whats up with Arc, Dia, Firefox, Chrome and Opera GX?

911: Browsers in 2025: Whats up with Arc, Dia, Firefox, Chrome and Opera GX?

Scott and Wes break down the state of web browsers in 2025, from the rise and fall of Arc and the fate of Firefox to hot takes on Opera GX, Raycast, and why power users might not be profitable. They c...

16 Kesä 202547min

910: If Statements in CSS?

910: If Statements in CSS?

Wes and Scott talk about the new If statements in CSS, breaking down how they work, why they matter, and when to use them. They explore use cases, syntax quirks, and how this feature pushes CSS closer...

11 Kesä 202524min

909: Handling and Throwing Errors

909: Handling and Throwing Errors

We break down how to properly throw, catch, and log errors in JavaScript and TypeScript. They cover client-side and server-side strategies, using tools like Sentry, and how to handle errors without ta...

9 Kesä 202539min

908: Storybook Has Evolved w/ Jeppe Reinhold

908: Storybook Has Evolved w/ Jeppe Reinhold

Wes and Scott talk with Jeppe Reinhold about Storybook 9’s powerful new features—including drastically reduced bloat, seamless Vite integration, and next-level component testing. They dive into visual...

4 Kesä 202550min

907: Wes’ New Site: Gatsby → React Server Components

907: Wes’ New Site: Gatsby → React Server Components

Wes rebuilt his personal site from Gatsby to a modern stack using Waku, React Server Components, and Cloudflare Workers — all while keeping the same design. Scott and Wes break down the pain points wi...

2 Kesä 202544min

906: Tech Startups and Raising Money with Dan Levine (Vercel, Sentry, Mux…)

906: Tech Startups and Raising Money with Dan Levine (Vercel, Sentry, Mux…)

Wes and Scott talk with VC Dan Levine about how developers can raise venture capital, what investors look for in early-stage startups, the realities of bootstrapping vs. fundraising, and why great ide...

28 Touko 202556min

905: You Should Learn Nuxt!

905: You Should Learn Nuxt!

CJ steps in for Scott and joins Wes to share his experience working with Nuxt, from routing and data fetching to the pros and cons of the framework. They break down the Nuxt ecosystem, directory struc...

26 Touko 202527min

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