Nuxt DevTools V4, It's JS Engine Season, and TypeScript Still #1 on GitHub | News | Ep 88

News for the week of October 26, 2026: Nuxt DevTools V4 is bigger and badder than ever, it's JS engine season with Yavashark and Boomkat, and TypeScript stays #1 on GitHub as more than 40% of pull requests now start with an agent. From the community: a SOML parser in TS types, a TypeScript to SNES compiler, and how to access the runtime values for type unions.

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• Homepage and Docs: https://excaliburjs.com
• Make Your First Gamein 10 Minutes
• Join the Discord: https://discord.gg/9UemP985Uy

Chapters

• (00:00) - Tooling: tttt and the rise of personal TypeScript compilers
• (03:43) - Tooling: Ende revisits Deno’s original runtime philosophy
• (06:57) - Tooling: Yavashark, an Embeddable JavaScript Engine Written in Rust
• (09:20) - Tooling: Boomkat, a ES2026 JavaScript in C3
• (10:14) - Tooling: Next SWC major up to 3X faster native parsing, 10X faster parsing via JavaScript API
• (11:38) - Tooling: Node.js 27 Alpha has major V8 engine updates
• (13:54) - Tooling: Elide embeds a C compiler and linker
• (16:37) - Frameworks: Nuxt DevTools v4 is out
• (17:59) - Frameworks: TanStack DB 1.0 RC1 and test oracles
• (22:20) - Web Platform: Recap of GitHub Universe 2026
• (27:10) - Web Platform: Sourcemap scopes arrive
• (28:57) - Web Platform: HTML-in-Canvas is here in Chrome 157
• (31:22) - Web Platform: Firefox 159 and Safari 27.2
• (32:49) - Security: Linux kernel TCP flaw allows remote code execution
• (34:29) - Security: Anthropic removes compromised Claude Code Cursor extension
• (36:29) - Security: knip is a Security Hardening Tool
• (37:21) - Library Watch: CDP-Kernel runs Node/Deno/Bun in Jupyter notebook
• (37:55) - Library Watch: svjeez lets you animate SVGs declaratively
• (39:46) - Library Watch: ohne.dev, a zero-dependency TypeScript web framework
• (41:11) - Library watch: Build shaders locally, OSS from shaders.com
• (41:31) - Library watch: Domicile brings web tech to Linux desktops
• (42:17) - Community: Boston TS meetup is back Nov 19
• (42:44) - Community: Jamie Tanna explains how to get access to type unions at runtime
• (44:13) - Community: sindresorhus made a TypeScript-only SOML parser with zero runtime code
• (46:13) - Community: Compiling TypeScript into Super Nintendo games
• (48:08) - Community: Tom Schindl on null vs undefined
• (49:13) - Community: City builder game engine written in TS
• (49:54) - Community: Mike Haas makes Caladesi, a toy language in .NET that is basically TypeScript
• (52:05) - Community: Antony Jones built a logic gate simulator in TS
• (52:48) - Community: nyamauru on six different ways to write a User type
• (54:37) - Community: Armin's tip on Angular 22 @Service decorators
• (55:44) - Community: Lemmings-ts, OSS browser remake of the classic Lemmings game
• (56:50) - Bleet of the Week
• (57:55) - Cool Interview: Stephen Toub on porting a 400,000-line runtime from TypeScript to Rust
• (01:03:21) - Cool Essay: I am Dr. Jekyll and Mr. Hyde about AI
• (01:07:07) - The Minnesota Long Goodbye

News

• Tooling & Runtimes
  • tttt: I finished the TypeScript type checker. it's fast – TS type checking in C (via Tess)
  • Ende homepage is live
  • Yavashark: I've Built A JS Engine Every Day For 950 Days Straight (via Rob Palmer)
  • Boomkat: A tiny JS engine with ES2026 + native TS and JSX support (via Ricardo Tomasi)
  • SWC Next: Inspired by the Yuku compiler architecture (via Rob Palmer)
  • Node.js 27 Alpha
  • Elide 1.6.2: Embedded C compiler and linker via LLVM
• Frameworks
  • Nuxt DevTools v4
  • TanStack DB 1.0 RC1: Going All In on Oracles
• Web Platform
  • GitHub Universe 2026: Evolving every layer of the stack
    • Plus: Octoverse: Commits, pushes, reach new highs in 2026 as developers build with agents
    • Plus: GitHub debuts Copilot Fusion, a new model selection & orchestration system that beats Claude Code for half the API cost
  • ECMAScript: Simon Zünd ships the TG4 Stage 3 “Scopes” proposal for source maps in Chrome 158 (via Rob Palmer)
  • HTML-in-Canvas in Chrome 157: Interactive DOM inside 2D, WebGL, and WebGPU
  • Firefox 159.0, See All New Features, Updates and Fixes
  • Safari 27.2 Release Notes
• Security Corner
  • PSA: Linux Kernel TCP Flaw With 9.8 CVSS Score Affects Ubuntu, Red Hat and Other Distributions
    • Related: Fixes available in -proposed pocket for CVE-2026-98432 (Ubuntu)
  • Socket: Cursor Removes Malicious Claude Code 2.1.313 Extension From Its Marketplace
  • PSA: knip.dev is a security hardening tool (via Philippe Serhal)

Library Watch

• cdp-kernel: A Jupyter kernel for TypeScript and JavaScript, extracted from Deno's, that runs notebooks on Node, Deno, Bun, workerd and celld (via Thomas Lockney)
• svjeez: Write a scene in TypeScript and compile it to a self-contained animated SVG (via