TS7 in the Playground, Parcel 3 Goes 100x Faster, and Excalibur Hits 1.0 | News | Ep 89

News for the week of November 2, 2026: the TypeScript Playground now runs the Go-based TS7 in your browser, Parcel 3 is a ground-up Rust rewrite that's up to 100x faster, and Excalibur hits 1.0 after thirteen years. From the community: TypeScript running inside its own type system, flawless Chrome tab capture, and what to do about too many TypeScripts. Sponsored by Excalibur.js Excalibur.js is the free and open source friendly TypeScript 2D game engine for the web. Learn to make web games with TypeScript or JavaScript! Excalibur comes out-of-the-box with everything you need, like physics, sprites, animations, sound effects, and first-party plugins for popular 2D gamedev tools. Homepage and Docs: https://excaliburjs.com Make Your First Game in 10 Minutes Join the Discord: https://discord.gg/9UemP985Uy Chapters (00:00) - Tooling: TypeScript Playground V2 Powered by WASM (03:00) - Tooling: Porffor passes 96% of test262 and has better Node compat (04:29) - Tooling: Node.js security updates for November 11 (05:18) - Tooling: Node.js 27 alpha notable changes in V8 (06:24) - Tooling: Rune is a terminal IDE that supports TypeScript 7 (08:11) - Tooling: Parcel V3 is a ground-up rewrite in Rust (10:45) - Tooling: Playwright test runner now supports Bun (12:21) - Frameworks: Excalibur reaches 1.0 milestone (18:07) - Web Platform: Cloudflare is enabling Temporal API in workers starting in December (19:16) - Web Platform: Safari 27.3 beta brings more modern web goodies (23:42) - Security: GitHub moving to block pull_request_target workflows in December (24:51) - Security: 9 tips to harden your GitHub actions against outside threats (31:54) - Library watch: Lume 4.0 is out, a static site generator (32:40) - Library watch: TanStack AI 1.0 is now stable (35:27) - Library watch: Kysely, a type-safe SQL builder (36:27) - Community: tstst, TypeScript in the TypeScript Type System (37:28) - Community: State of JavaScript 2026 survey is out! (38:00) - Community: I'm feeling lost with all the TypeScript options now (41:30) - Community: Tales from the Void, October 2026 recap (42:15) - Community: Daniel Roe makes vite-plugin-checker (43:44) - Community: Better Stack on the new tsrs TypeScript Rust port (44:17) - Community: Paul Irish's Chrome Capture takes flawless videos of your Chrome (46:03) - Bleet of the week (46:40) - Cool Link: .NET 11 and its new async runtime (50:36) - Cool video: I let AI refactor my codebase for 3 weeks, then I read the code (52:32) - Cool link: Not everything needs an LLM by PostHog engineering (54:35) - The Minnesota Long Goodbye News Tooling & RuntimesTypeScript: A new TypeScript Playground supporting the Go-based TS7 (via Rob Palmer) Porffor: Now passing ~96% of Test262, with decent Node compat (via Oliver Medhurst) Notable V8 changes from Node.js 26 to 27 (Alpha) Rune 1.3 is released – Kitty graphics and tier 1 TypeScript support Announcing Parcel 3 alpha Playwright v1.65.0 – Run tests with Bun FrameworksExcalibur v1.0.0 Released! Web PlatformCloudflare: Temporal will be enabled by default in Workers from December 1, 2026 (via Rob Palmer)Related: Temporal: The 9-Year Journey to Fix Time in JavaScript (Bloomberg) Related: Temporal: It's about time! (Jason Williams, State of the Browser) Safari: Safari 27.3 Beta ships Temporal, using, import defer, and more (via Rob Palmer) Security CornerSocket: GitHub to Block pull_request_target Workflows by Default Starting December 2 Socket: Hardening GitHub Actions Against Outside Threats Library Watch Lume 4: The future of Lume, the static site generator TanStack AI 1.0: Still Your AI, Still Your Way Joist 2.5: State Machines, PostgreJS, Read Locks, Metrics Kysely: Type-safe SQL query builder, in production at a lot of companies since 2021 From the Community zzj3720: TSTST, TypeScript compiling TypeScript inside its own type system (via Adam) Sacha Greif: The 2026 State of JavaScript survey is now open Reddit: Feeling lost with all the TypeScript options now. What are you actually using? VoidZero: Tales from the Void: October 2026 Recap Daniel Roe: vite-plugin-checker v1 is out Better Stack: TypeScript Got Ported To Rust... And It's 3x Faster Than Go Paul Irish: chrome-capture, flawless no-dropped-frames AV1 capture of a Chrome tab Bleet of the Week: Installing TypeScript security patches... Cool Links AI Engineer: I Let Agents Refactor My Codebase for 3 Weeks. Then I Read the Code. (Keiji Kanazawa, Microsoft) Microsoft Learn: What's new in .NET 11 runtime .NET Blog: Performance Improvements in .NET 11 (Stephen Toub) PostHog: Not everything needs an LLM (Jina Yoon) Music Seahorse Dreams by Kubbi (Spotify) ...