TypeScript.fm - The Friendly Show for TypeScript Developers

News for the week of Feb 16, 2026: npmx.dev is a better frontend for npm, Chrome 145 includes some cool new toys, and we figure out that Knip is pronounced with a hard-K. From the community: fun with generics, Next.js adds an MCP server, and why OSS maintainers need to breaks (as should we all).
Chapters

(00:00) - Welcome to the Show

(07:10) - News: We Made Our First Video Podcast Episode

(09:02) - News: TS Native Gets Remote AST Speed-up of 6.4X

(09:59) - News: npmx.dev is a New Frontend for npm Registry

(14:13) - News: Chrome 145 Brings Some Cool New Devtools

(18:41) - News: Safari 26.4 Looks to Improve CSS Grid Support

(19:35) - Library Watch: Knip 5.85.0 Cleans Up Codebase Cruft

(22:30) - Library Watch: @wasmground/emit Builds WASM with TS

(23:58) - Library Watch: Tempest Generates Types from PHP

(25:33) - Library Watch: runner 5.5.0, an All-in-one TS Framework

(28:02) - Community Highlight: Build a Game Series by Deno

(30:02) - Community Highlight: Next.js MCP Server

(33:29) - Community Highlight: What is TC39 by Shop Talk Show

(34:32) - Community Highlight: Open Source Developers Need to Take Breaks

(38:16) - Community Highlight: Fun with TS Generics by Adam Rackis

(39:38) - Bleet of the Week

(39:59) - Cool Link: 400 Car Batteries Wired Together

(40:39) - Cool Link: FragCoord.xyz is a ShaderToy Alternative

(41:37) - Cool Link: Recreating a BBC Micro Game in TypeScript

(43:19) - Cool Link: YootTower, Open Source Code for SimTower

(44:33) - The Minnesota Long Goodbye

News
Watch our TS 6.0 “Read Along” Vodcast!
TS native preview got a 6.4X perf increase for “remote” AST materialization
npmx.dev is not a package manager
Chrome: What's new in DevTools (Chrome 145)
Safari: 26.4 beta improves CSS grid support
Library Watch
Knip includes monorepo memory optimizations
@wasmground/emit lets you build WASM with TypeScript for better learning
Tempest can generate types from PHP files
runner shaved the yak until it got bald  
From the Community
Deno: https://deno.com/blog/build-a-game-with-deno-6 
Next.js: Building Next.js for an agentic future 
Shop Talk Show: TC39 and how it works (via Rob Palmer) 
The Register: OSS Maintainers take a break (via Daniel Roe) 
Frontend Masters: Fun with TypeScript Generics
Cool Links
Cool Watch: 400 car batteries wired together!! 
Cool Tool: FragCoord is a ShaderToy alternative
Cool Game: TypeScript version of BBC Micro game
Cool Code: YootTower is the OG SimTower source code
Music
Seahorse Dreams by Kubbi (Spotify)

News for the weeks of Feb 2 and Feb 9, 2026: TypeScript 6.0 beta drops, ESLint 10 config updates, and Electrobun 1.0 release. From the community: TypeScript types are not a security feature and breaking changes in TS 6.0 you need to know.
Chapters

(00:00) - Welcome to the Show

(04:53) - News: TypeScript 6.0 Beta

(17:28) - News: ESLint 10 Brings Flat Config Changes

(19:47) - News: Deno Deploy is Now Generally Available

(26:27) - PSA: React Native CLI Metro4Shell Vulnerability

(28:32) - Library Watch: TanStack Query Now Supports Preact

(28:58) - Library Watch: Nuxt Test Utils v4 Supports Vitest 4

(29:18) - Library Watch: Handy, a Desktop App for Speech-to-Text

(30:40) - Library Watch: Colyseus 0.17 for Multiplayer Games

(31:03) - Library Watch: Tabularis, a Minimalist TypeScript-based DBMS

(31:47) - Library Watch: Electrobun 1.0 Release

(32:52) - Community Highlight: What's New in ViteLand January 2026

(33:07) - Community Highlight: n8n RCE in 4 Acts by Fetih Çelik

(36:32) - Community Highlight: TypeScript 6.0 Changes by TypeRocks

(37:01) - Community Highlight: TypeScript Online Game Template

(38:29) - Bleet of the Week

(39:10) - Cool Link: Types in JSDoc

(39:52) - Cool Link: Esoteric Math

(40:49) - Cool Link: Virtual DSLs

(42:32) - Cool Link: Someone Building an NES JRPG

(43:05) - The Minnesota Long Goodbye

News
Announcing TypeScript 6.0 Beta
ESLint v10
Deno Deploy is GA
Introducing Deno Sandbox
PSA: React Native CLI Metro4Shell Vulnerability
Library Watch
Preact is added to TanStack Query
Nuxt Test Utils v4 supports Vitest 4
Handy is a universal speech-to-text app
Colyseus 0.17 lets you build multiplayer games with full-stack TypeScript safety
Tabularis: a lightweight developer-focused database management tool
Electrobun 1.0 release is the Electron alternative you’ve been waiting for
From the Community
VoidZero: What’s New in ViteLand January 2026
Fatih Çelik: n8n RCE(s): A Tale of 4 Acts (CVE-2025-68613 & CVE-2026-25049)
Typed Rocks: TypeScript 6: Breaking Changes You Need to Know 
TypeScript Online Game Template
Cool Links
Types in JSDoc: excalibur.js browser extension
Esoteric Math: Happy Numbers and Vampire Numbers
Virtual DSLs (via Dan Abramov)
Do you like old-school NES JRPGs?
Music
Seahorse Dreams by Kubbi (Spotify)

Mauro Bieg joins the two fools to talk about Mastro, a simple and minimal web framework and site generator. If 11ty and Astro had a baby, it might look like Mastro! With support for routing, HTML templating, streaming, and even reactive UI, Mastro might be a great fit for your next content-driven website.
Resources
Mastro Website
Mastro on GitHub
Mastro on BlueSky
Where to Follow the Team
Mauro on GitHub
Mauro on BlueSky
Chapters

(00:00) - Introducing Mauro Bieg

(03:12) - What is Mastro.js?

(05:39) - How Mastro Renders HTML

(10:04) - Comparing Mastro.js with Other Frameworks

(14:55) - Handling Server Requests in Mastro

(20:00) - Client and Server Separation

(26:39) - Client-Side Functionality with Reactive Mastro

(32:18) - Leveraging Web Standards and Native Runtime Features

(34:14) - Working with Multiple Runtimes

(40:31) - TypeScript Integration and Type Checking

(41:51) - Support for HTTP Streaming

(47:07) - How Mastro Performs

(49:01) - Getting Started with Mastro

(51:33) - Where to Find Mauro

Sponsored by Excalibur.js
Excalibur.js is the friendly TypeScript 2D game engine for the web. Use your TypeScript or JavaScript skills to make games! Excalibur comes out-of-the-box with everything you need to make web games, like physics, sprites, animations, sound effects, input, tile maps, particles, and more.
Homepage and Docs: https://excaliburjs.com
Make Your First Game in 10 Minutes
Join the Discord: https://discord.gg/9UemP985Uy
Music
Seahorse Dreams by Kubbi (Spotify)

News for the week of January 26, 2026: Yarn 6.0 is rewritten in Rust, Anders interviewed on history and future of TypeScript, and a PSA on the Notepad++ update system. From the community: start using the satisfies keyword, learn more about Node Single Executable Applications (SEAs), and a DnD rule engine written in TS.
Stand With Minnesota
We are native Minnesotans. The ICE occupation is affecting our community in so many ways and has disrupted daily life for thousands of us. Families are sheltering in place, fearing to go to work, let their kids walk to school, take the bus, or even attend school at all. It is not just affecting immigrants, it is affecting all of us.
Go to StandWithMinnesota.com to learn how you can help.
Chapters

(00:00) - Welcome to the Show

(05:11) - News: Removing ES5 Target for TS 6.0

(08:46) - News: Yarn 6.0 is Rewritten in Rust

(13:55) - News: Anders Interviewed on History and Future of TypeScript

(17:56) - News: Astro 5.17

(18:24) - News: 11ty, 2025 Year in Review

(19:33) - PSA: Notepad++ Hacked, Don't Use In-app Updater

(21:09) - PSA: More React Vulnerabilities, Update RSC Packages

(23:08) - Library Watch: ReliCSS, Fix Your Ancient CSS

(24:23) - Library Watch: Clack 1.0, Stylish Prompts for CLI Tools

(25:28) - Library Watch: TypeScript D20 Rule Engine for DnD

(27:02) - Community Highlight: satisfies Keyword is OP

(28:26) - Community Highlight: Does JIT Go Brrr? by Savannah.dev

(29:22) - Community Highlight: Node SEAs by Joyee Cheung

(30:08) - Community Highlight: Node is Getting a Virtual File System

(31:29) - Community Highlight: Deno on Windows ARM?

(32:27) - Community Highlight: Mocha.js Gets a Fresh Website

(32:51) - Community Highlight: In Mastro, Everything is a Route

(33:20) - Community Highlight: Hacking Compiler to Get const-known TemplateStringArray

(35:04) - Community Highlight: Gamedev.js Survey Results Are In

(37:19) - Bleet of the Week

(39:41) - Cool Video: Metroid's 8-bit Gravity by NESHacker

(40:21) - Cool Video: AI LEGO PixelArt Robot

(41:10) - Cool Link: Giantbomb x MinnMax Fundraiser for VEAP

(43:26) - Cool Watch: Planet Earth Series

(44:41) - The Minnesota Long Goodbye

News
TS 6.0: PR to remove ES5 merged! (via Rob Palmer)
Yarn: New 6.0 preview, rewritten in Rust
GitHub: 7 learnings from Anders Hejlsberg: The architect behind C# and TypeScript
Astro 5.17 release notes 
Eleventy, 2025 in Review 
PSA: Notepad++ Update Servers Got Hacked, download 8.9.1 manually!
PSA: Denial of Service Vulnerabilities in React Server Components
Library Watch: Introducing ReliCSS: A Tool for Front-End Archaeology
Library Watch: Clack 1.0 lets you build stylish interactive CLI prompts
Library Watch: DnD D20 rule engine written in TypeScript
From the Community
Web Dev Simplified: satisfies keyword is awesome
Savannah Ostrowski: Does JIT  go brrr? 
Joyee Cheung: Improving Single Executable Application Building for Node.js 
Matteo Collina: VFS coming soon
Deno: Windows ARM BUILD!?
Joshua Goldberg: Mocha has a new Astro frontend!!
Mastro: Everything in Mastro is a Route
Cinny.bun.how: patching TypeScript compiler to get const-known TemplateStringsArray 
Gamedev.js Survey Results are In: The State of Web Game Dev in 2025
Cool Links
Metroid's 8-Bit Gravity  
I made an AI LEGO® PixelArt Robot 
GiantBomb and MinnMax fundraiser for VEAP
Planet Earth (HBO)
Music
Seahorse Dreams by Kubbi (Spotify)

News for the week of January 19, 2026: Rolldown reaches 1.0 release candidate, and a PDF library we all deserve. From the community: a better npm admin experience, supertype safety, and modern package.json targets.
Stand With Minnesota
We are native Minnesotans. The ICE occupation is affecting our community in so many ways and has disrupted daily life for thousands of us. Families are sheltering in place, fearing to go to work, let their kids walk to school, take the bus, or even attend school at all. Adults and children are being abducted from their workplaces, schools, cars, and homes with aggressive tactics and without due process. There have been dozens of well-documented violations of our civil liberties and rights as US citizens, including the illegal detainment of peaceful protestors, constitutional observers, and people of color. ICE has shot and killed two US citizens already in the span of 3 weeks: Renee Good, a mother of three, and Alex Pretti, a VA nurse. They are out of control, they are causing irreparable harm, and we want them out of our cities.
Go to StandWithMinnesota.com to learn how you can help.
Chapters

(00:00) - Welcome to the Show

(06:36) - News: TypeScript PR to Support Import Attributes in d.ts Files

(09:00) - News: Deno 2.6.6 Brings Some QOL Improvements

(10:15) - News: Rolldown 1.0 RC is Here

(14:13) - News: TC39 ECMAScript Proposal Updates

(19:04) - News: Firefox 147 Adds WebGPU on Apple Sillicon and Brotli Compression

(21:04) - News: Nuxt 4.3 Supports Inlining Critical CSS for Webpack and Rspack

(22:33) - PSA: Svelte Ecosystem Vulnerabilities

(24:26) - Library Watch: LibPDF, the PDF Library TypeScript Developers Deserve

(26:17) - Library Watch: ts2rs, Transforms TS Types to Rust Types

(27:38) - Library Watch: Mastra, TS Agent Toolkit, Reaches 1.0

(28:23) - PSA: Lodash Gets a Security Update and Governance from OpenJSF

(29:20) - Community Highlight: Daniel Roe Wants to Hear Your npm Frustrations

(29:57) - Community Highlight: Don't Assign a Map to WeakMap

(30:59) - Community Highlight: Super Monkey Ball on the Web

(31:38) - Community Highlight: Package.json for Modern Targets

(33:18) - Community Highlight: How Next.js Built Turbopack

(33:39) - Bleet of the Week

(34:21) - Cool Link: Crudy, a Postman Alternative

(35:05) - Cool Video: SystemOfLevers on How to Make a Gameboy Game

(35:24) - Cool Video: How to Make a Homebrew GPU

(35:57) - Cool Video: Transforms 101 by Scott

(36:17) - Cool Link: StandWithMinnesota.com

(37:29) - The Minnesota Long Goodbye

News
TypeScript PR to add support for import attributes in ambient module declarations. Motivating example (from Vite team) 
Deno 2.6.6
Rolldown 1.0 RC 
TC39 News via Rob Palmer
Firefox 147 release notes for developers 
Nuxt 4.3
CVEs affecting the Svelte ecosystem 
LibPDF, the PDF library TypeScript developers deserve
ts2rs for converting TS types to Rust types
Announcing Mastra 1.0! 
PSA: Lodash Rolls Out Major Security Overhaul
From the Community
Daniel Roe calls out for npm frustrations, creating npmx.dev 
Tip: Supertype safety? WeakMap is a supertype of Map 
Super MonkeyBall in a browser 
Discussion: Types, Package.json, and Modules 
Next.js: Inside Turbopack: Building Faster by Building Less
Cool Links
Crudy is an alternative to Postman
Gameboy Games by @systemoflevers 
A Homebrew GPU for a Homebrew CPU
Transforms 101 by Scott
Music
Seahorse Dreams by Kubbi (Spotify)