Our last episode for 2025, see you in 2026! News for the week of December 15 2025: Microsoft's experimental JS/TS modernization agent, new Next.js and Bun releases, and how pnpm is tightening the security screws. From the community: when to use types vs. interfaces, actionable tips on securing your local dev environment, and tips on using TypeScript types as a programming language.

MCP in Practice Course
Out now. Kamran shows you how to build a practical enterprise-grade MCP server with .NET, C#, and OAuth, hosted remotely on Azure. (Requires subscription)

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) - Welcome to the Show
(05:18) - News: TSGo Now Supports Experimental Decorators
(06:18) - News: JS/TS Modernization Agent for VS Code
(09:47) - News: Next.js 16.1 Brings Turbopack Caching and a Build Analyzer
(10:32) - News: Bun 1.3.5 ft. Terminal Simulator, Compile-time Feature Flags
(12:50) - News: Standard Schema V1 Released
(14:24) - News: pnpm 10.26 Has Stricter Security Defaults
(16:16) - News: Node Security Updates Pushed to Jan 7
(16:52) - Library Watch: numpy-ts, NumPy but in 100% TypeScript
(18:57) - Library Watch: tinypdf and tinydocx, Minimal Document Creation
(20:02) - Community Highlight: npm Security Best Practices by Liran Tal
(23:10) - Community Highlight: TypeScript Types as a Programming Language by Thiery Michel
(24:46) - Community Highlight: Build a Dino Runner in Deno, pt 3
(25:26) - Community Highlight: Types vs. Interfaces by Yan Sun
(26:31) - Community Highlight: Eleventy's Progress on Zero Config TS
(27:10) - Bleets of the Week
(28:24) - Cool Link: noclip.website Lets You Explore Retro Game Levels
(29:46) - Cool Tool: unplugin-inline-functions for Inlining Functions
(31:48) - Cool Tool: rsdoctor, Analyze Rspack and Webpack Bundles
(33:26) - The Minnesota Year-long Goodbye

News

Excalibur.js V0.32.0 holiday release
TSGo PR #2343 adds experimental decorators support
Microsoft: Announcing the JavaScript/TypeScript Modernizer for VS Code
Next.js 16.1 adds Turbopack improvements
Bun: 1.3.5 release terminal simulator (PTY) and compile-time feature flag dead-code elimination
Standard Schema V1 release (h/t ArkType and Josh Goldberg)
Library Watch: https://www.npmjs.com/package/numpy-ts
Library Watch: Lulzx/tinydocx: Minimal DOCX/ODT creation library
Library Watch: Lulzx/tinypdf: Minimal PDF creation library

From the Community

Cool Links

Cool Plugin: krispya/unplugin-inline-functions - Vite/unplugin for C/C++ style inlining
Cool Link: NoClip.website lets you fly around classic game levels like Super Paper Mario, Majora's Mask, and Mario Kart Wii
Cool Tool: rsdoctor is a bundle analyzer for Rspack-family of tools (and webpack!)

Music
Seahorse Dreams by Kubbi (Spotify)

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