Theo's $420K TS-Rust Port, bun check, and Deno Joins Cloudflare | News | Ep 85

News for the week of October 5, 2026: Theo spends $420,000+ porting the TypeScript compiler to Rust, the new Bun (type)check command claims 3-7x speedups, and Deno joins Cloudflare. From the community: ViteConf is October 15, GitHub moves off CSS-in-JS, and Syntax is donating.

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Chapters

• (00:00) - Tooling: ts-rust, a Vibe Port of TypeScript 7 to Rust
• (06:03) - Tooling: bun check, 2-7X Faster Type Checking in Bun 1.4.3
• (10:07) - Tooling: bun Adds lint and format Commands, Forking oxlint and oxfmt
• (11:27) - Tooling: terser Adds Erasable Types Support
• (13:17) - Tooling: Node.js 26.11.0, New Docs and Benchmarking Perf Hooks
• (15:22) - Frameworks: Next.js 16.4 Adds Cache Components Programming Model
• (19:21) - Web Platform: Deno Joins Cloudflare, But Will No Longer Maintain the Runtime
• (24:24) - Web Platform: Chrome 155+ Will Support JPEG XL
• (26:12) - Security: Vite Dev Server CVE for Arbitrary Command Execution
• (27:41) - Security: TanStack Start CVE for Reflected Cross-site Scripting
• (28:37) - Security: zod and Other Packages Were Nearly Compromised
• (30:38) - Security: New GhostAction Wave Steals Cloud and AI Credentials
• (32:50) - Other News: Remembering Margaret Hamilton, Apollo Space Programmer
• (33:14) - Library Watch: maligator, an AOT Compiler for JavaScript to C
• (34:24) - Library Watch: fjson, a Friendly JSON-alike Language and Parser
• (35:10) - Library Watch: logtape 2.4
• (36:23) - Library Watch: plumeria, Type-safe Zero-runtime Atomic CSS
• (37:02) - Community: ViteConf is October 15
• (37:26) - Community: Syntax.fm Calling for Nominations to Fund OSS Maintainers
• (37:48) - Community: GitHub is Switching from CSS-in-JS to CSS Modules
• (40:13) - Community: Mark Built a JavaScript Runtime Over the Weekend Called Bento
• (41:48) - Community: Grafana's Cuetsy and Thema TypeScript Code Generation
• (42:26) - Bleet of the Week
• (43:11) - Cool Event: Ludum Dare, Make a Game in 48 Hours
• (44:02) - Cool Study: Where is the Bottleneck in Software Development and AI?
• (45:46) - Cool Tool: TypeScript to Zod Schema Tool (and More!)
• (46:40) - Cool Link: ascii.rest, Animated ASCII Art for Web Pages
• (48:22) - The Minnesota Long Goodbye

News

• Tooling
  • Theo: ts-rust
  • Bun: Bun 1.4.3
  • Terser: Experimental type erasure (via Rob Palmer)
• Metaframeworks
  • Next.js: Next.js 16.4
• Web Platform
  • Cloudflare: Deno joins Cloudflare
  • Node: Node.js 26.11.0 (Current)
  • Chrome: Shipping JPEG XL in Chrome (155+)
• Security Corner
  • VoidZero: Vite Dev Server security update
  • TanStack: TanStack Start security update: CVE-2026-102989
  • Zod: Security advisory: malicious npm package changes affecting zod, nub, and standard-schema
  • Socket: New GhostAction Wave Hits Hundreds of Repos, Expanding Beyond CI/CD Secrets to Cloud Credentials
• Other news
  • MIT News: Margaret Hamilton, computing pioneer, dies

Library Watch

• Maligator: JS AOT to C compiler (GitHub)
• fjson from Cinnamon: friendly JSON parser for TypeScript
• LogTape: LogTape 2.4.0
• Plumeria: type-safe CSS with a Rust compiler

From the Community

• VoidZero: ViteConf is October 15th
• Syntax.fm: Syntax is donating
• GitHub: Switches from CSS-in-JS
• Mark Malstrom: Bento, a JS runtime in a weekend
• Sam Boyer: Grafana's schema-driven data language: Cuetsy and Thema (via Evangaline Rome)
• Bleet of the Week: “Cloudflare” Meteor

Cool Links

• Artificial Intelligence in the Firm: Bottlenecks in Software Production
• TypeScript to Zod Schema
• ASCII Rest

Music
Seahorse Dreams by Kubbi (Spotify)