TypeScript.fm - The Friendly Show for TypeScript Developers

News for the weeks of September 21 and 28, 2026: Vite+ 1.0 is now stable, SvelteKit 3 is finally here, TanStack has charts now, and why everyone is launching decision models. From the community: awesome TypeScript books, why you shouldn't be afraid of generics, and how Booking.com cut Node scaling costs by 38%.
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: Vite+ 1.0 Stable Announced

(05:58) - Tooling: Introducing upm, a New Package Manager

(09:42) - Tooling: TanStack Charts 1.0 Announced

(12:08) - Metaframeworks: SvelteKit 3 is Here

(13:38) - Framework: Nuxt 4.6 Brings Nuxt CLI v4 and is Closer to Being Server Agnostic

(18:26) - Web Platform: ECMAScript Composites TC39 Proposal

(21:56) - Web Platform: Cloudflare Open Sources cf CLI and Forge

(25:40) - Web Platform: Cloudflare Introduces Clef, an Open Weights Decision Model

(30:41) - Web Platform: Chrome 154, Responsive iframes

(31:49) - Web Platform: Firefox 157's Fresh Design

(33:03) - Security: Next.js September 2026 Patches Available

(33:46) - Library Watch: Preact 11 - ESM-only, Hydration v2, Modern Diffing

(35:43) - Library Watch: Effect Module of the Week, RcMap

(36:35) - Library Watch: mimlet 0.1 for Testing with Mock Data

(37:33) - Library Watch: oxbox, a Tiny Portable Library for Parsing, Transforming JSX/TSX

(37:53) - Library Watch: safemods, Type-directed Code Mods for TS 7

(39:49) - Library Watch: GTKX, Linux desktop apps with React and JSX

(41:20) - Secret of the Handbook: Const Generics (Again)

(42:52) - Community: Angular's TypeScript 7-powered Compiler

(45:54) - Community: Josh Ghoulberg is Excited About no-unsafe-enum-assignments TS ESLint Rule

(47:02) - Community: Awesome TypeScript Books by tscollege

(48:19) - Community: Max Hurst Reassures Us Not to Be Afraid of Generics

(49:47) - Community: Dan Holloran on How to Clean Up Your TSConfig for TS7

(50:32) - Community: Rahul's Readable Regular Expressions Inspired by Emacs

(53:13) - Community: Razvan's Glossary of Programming Terms

(54:05) - Community: How Booking.com Scales Node.js and Cut Costs by 38%

(58:06) - Community: NOMIAD, an Open World Sci-Fi Game Written in WebGL and TypeScript

(59:05) - Community: Claude Mods Customize Your Clanker

(01:00:24) - Community: dsherret's TypeScript Factory Code Generator Generator

(01:01:18) - Community: Kris Jenkins Used SpaceTimeDB to Visualize Wikipedia Edits

(01:02:14) - Bleet of the Week

(01:02:49) - Cool Link: How to Render Text from Font Files by Jimmy Lefevre

(01:03:59) - Cool Prompt: Create a Trip Highlight Video

(01:10:02) - The Minnesota Long Goodbye

News
VoidZero: Announcing Vite+ 1.0Plus: ViteConf 2026 (October 15)

Socket: Introducing upm 
TanStack: TanStack Charts 1.0 announced 
SvelteKit: SvelteKit 3 is here 
Nuxt: Nuxt 4.6 
ECMAScript: TC39 Composites via Rob
Cloudflare: Open-sourcing cf and Forge
Cloudflare: Introducing Clef: our open-source decision models, and new RL fine-tuning platformRelated: AWS launches a local answer to TypeSafe's Jev decision model

Chrome: New in Chrome 154 
Mozilla: Firefox 157.0, See All New Features, Updates and Fixes 
Next.js: September 2026 Security Release 
Library Watch
Preact 11: Post by @jovidecroock.com
Effect.ts Module of the Week: RcMap
Mimlet 0.1.0-beta.0: create mock test data
Safemods: type-directed code mods for TypeScript 7
GTKX: native Linux desktop apps with React
From the Community
Angular Team: An update on Angular’s TypeScript 7-powered Compiler 
Josh Goldberg: typescript-eslint finally gets "no-unsafe-enum-assignments"
TScollege: Awesome TypeScript Books 
Max Hurst: Do Not Be Afraid of Generics 
Dan Halloran: Your tsconfig Is Still Written for TypeScript 5. Here's the Cleanup TS 7 Forces
Rahul M. Juliato: Readable Regular Expressions for JavaScript/TypeScript, Inspired by Emacs' rx
Razvan Muntian: a programming glossary
Booking.com: Node.js at scale, rebalanced: how we cut cost by 38%
NOMIAD: an open-world sci-fi game in WebGL written in TypeScript
Anthropic: Customize Claude Code with mods in TypeScript
David Sherret: TypeScript Compiler API Factory Code Generator Generator (via Evangaline Rome)
Kris Jenkins: SpaceTimeDB w/ TypeScript
Bleet of the Week

In this special episode, the two fools are joined by Cameron Clark and Jim Dummett from VoidZero (and now, Cloudflare) to talk about the latest developments in type-aware linting, Vite+ and the Vite ecosystem, and what the future of dev tooling looks like for TypeScript and JavaScript developers.
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) - Introducing Cameron Clark and Jim Dummett

(04:55) - The VoidZero Acqui-hire

(11:47) - The Vite Toolchain

(16:04) - What Dark Magic Makes TypeScript Plugins Work with oxlint?

(23:42) - Type-aware Linting via Oxlint and TypeScript 7

(27:02) - Type-aware Linting is Now Stable, What Does That Mean?

(29:39) - Does TypeScript 7's Performance Unlock New Kinds of Lint Rules?

(33:13) - What is Coming Next to Dev Tooling?

(37:29) - How Can Dev Tools Help Optimize Agent Interactions?

(50:42) - Takeaways and Where to Follow Jim and Cameron

(57:09) - The Minnesota Long Goodbye

LinksCameron on GitHub
Jim's talk on oxc and type-aware linting
Vite+ (and 1.0 announcement)
Void Cloud
VoidZero Blog
oxlint plugin: anti-slop
Music
Seahorse Dreams by Kubbi (Spotify)

News for the week of Sep 14, 2026: latest Node 26 includes experimental benchmark tests, a modern drop-in replacement for DOM typings, and we try to understand Jev, bruv. From the community: how GitHub rewrote Copilot's runtime in Rust, learn about ESM, and why Shopify ditched React Native (spoiler: agents).
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

(06:02) - Tooling: Node 26.9.0 Lets You Write Benchmarks with node:bench

(08:49) - Tooling: Jev, the Type-safe AI

(15:25) - Tooling: TypeScript 7 Works Around New Golang FMA Changes

(17:58) - Frameworks: GeaStack Compiles Typescript to Native Apps with C++

(20:00) - Frameworks: Ember 7.2, New Built-in Strict Resolver and ESM-only

(20:46) - Web Platform: Firefox 156, Can Now Open Automatically on macos

(21:21) - Security: Happy Birthday Shai-Hulud!

(22:17) - Security: GitHub Actions Tries to Limit Cache Poisoning Risk

(23:47) - Security: Gitea Affected by Severe RCE Vulnerability

(24:47) - Library Watch: modern-web-types Drop-in Replacement for DOM Typings

(26:52) - Library Watch: sqlbraid Lets You Write SQL and Keep TypeScript

(29:28) - Library Watch: temporal-parser, a Lexer and Parser for Temporal Expressions

(31:06) - Library Watch: Zod 4.6 Comes With Some Perf Improvements

(32:26) - Community: Puffball Explains How TypeScript 7 Creates Typed ASTs in Go

(33:44) - Community: ESModule.com, Learn About ES Modules

(34:47) - Community: cm.xyz Explains Why You'd Use Effect

(36:27) - Community: Porffor Can Compile TSC

(37:34) - Community: Stephen Toub on How GitHub Rewrote Copilot Runtime in Rust, with Copilot

(42:29) - Community: ecyrbe Creates Typeskell to Experiment with Typeclasses

(42:52) - Community: Barak's Complete Guide to HOCs with Next.js, React, and TS

(43:53) - Community: Orhun Interviews Sebastian from OpenTUI

(44:34) - Community: Shopify Switched Back to Swift and Kotlin from React Native

(48:07) - Bleet of the Week

(49:31) - Cool Link: Design Your Own Silicon Chip

(50:41) - Cool Link: The Essential Craftsman

(53:10) - The Minnesota Long Goodbye

News
Node: 26.9.0
Syntax:  Jev Explained: Demos and Use Cases 
Jake Bailey: Go FMA’s introduce non-determinism
Geastack compiles TypeScript to native apps via C++
Ember: 7.2 released
Firefox: Firefox 156.0 release 
Socket: Happy Birthday, Shai-Hulud 
GitHub: Control GitHub Actions cache access with cache-mode 
Gitea RCE Vulnerability: Ed from Low Level's update on git situation 
Library Watch
modern-web-types is a drop-in replacement for dom typings with modern APIs
Clickin/SQLBraid: Write SQL. Keep TypeScript. Skip the query-builder translation layer 
taskade/temporal-parser: A lexer and parser for temporal expressions
Zod 4.6 perf fixes and Zod Mini standalone
From the Community
iamstan.dev: ES Modules via James
Puffball: Inside TypeScript 7's Go Port: Designing Typed AST Nodes Without a Giant Struct
cm.xyz: Understanding Why You'd Use Effect.ts 
Porffor: TSC compiled with Porffor
Stephen Toub: Migrating the GitHub Copilot runtime to Rust, using Copilot
Typeskell is a cursed project
Burak.dev: The Complete Guide to HOCs in Next.js with React and TypeScript 
Interview with OpenTUI https://bsky.app/profile/orhun.dev/post/3mvlg6qrwls2u 
Shopify: Native is now the future of mobile at Shopify 
Bleet of the WeekXKCD comic: guaranteed to be random

Cool Links
Designing Silicon From Scratch 
Dr.Semiconductor - YouTube 
Essential Craftsman – absolute gold carpentry tips
Music
Seahorse Dreams by Kubbi (Spotify)

News for the week of Sep 7, 2026: new browser loot drops in Chrome 153 and Safari 27, React 19.3 lets you control view transitions, and how Cloudflare rewrote the workers module registry for better Node.js compatibility. From the community: why nobody pays OSS projects, interactively learn Effect, and the motivation behind Zena the Warrior Princ--er, a new programming language inspired by TypeScript.
Partake in the No Sloptober Challenge!
Head to no-sloptober.com to read the manifesto and see if you can challenge yourself to turn off LLMs and AI for October. 
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

(05:11) - Tooling: React 19.3

(08:50) - Tooling: React Compiler is in Vite 8 via oxc

(10:17) - Web Platform: Chrome 153 Brings (Proper) Single-axis Scroll Support

(12:04) - Web Platform: Safari 27 First to Add Import Defer Support

(17:04) - Web Platform: Cloudflare Turns Node Compatibility On By Default

(20:42) - Library Watch: srvquery, Fully-typed Library for Browsing Game Servers

(21:32) - Library Watch: microlighter, Zero Dependency Syntax Highlighter Using CSS Highlights API

(23:15) - Library Watch: mcp-tada, Turn a MCP Client Into a Typed API

(25:22) - Library Watch: upyo, Cross-runtime Email Sender

(26:51) - Community: Laurie Voss Explains How We Can Force Companies to Pay for Open Source

(33:35) - Community: Kit Langton Made an Interactive Intro to Effect.ts

(34:52) - Community: Dan Holloran Advocates for Using the Built-in node:test Runner

(36:45) - Community: Pablo Androetto Ported Thousands of Windows Games to the Browser in Excalibur.js

(38:07) - Community: Dimitri Metropoulos Helps You Solve TS Performance Problems

(39:19) - Community: Hexagon Hunt-and-Kill Maze Using Mazely

(39:48) - Community: Justin Fagnani Explains Why He Made Zena, a TypeScript-inspird Programming Language

(42:12) - Bleet of the Week

(43:02) - Cool Link: Undisputed Authority with Roger Martin

(46:42) - Cool Link: Fresh is a Powerful Terminal Text Editor and IDE

(48:15) - Cool Link: How to Build Weighted Loot Tables

(48:45) - The Minnesota Long Goodbye

News
Tooling: React 19.3
Tooling: What's New: August 2026 from VoidZero
Web Platform: New in Chrome 153
Web Platform: Safari 27 Release Notes
Web Platform: How we rebuilt Cloudflare Workers’ module registry for Node.js compatibility 
Library Watch
Srvquery: fully-typed library for browsing game servers 
microlighter: zero-dep syntax highlighter using CSS Highlights API 
mcp-tada: create typed APIs for a MCP client 
Upyo: runtime-agnostic email sending library 
From the Community
Laurie Voss: Nobody pays for open source. We can force them to.
Kit Langton: Learn Effect.ts 
Dan Holloran:  node:test is the test runner you already have installed 
Pablo Androetto: Game Preservation  
Dimitri Mitropoulos:Solving Your TypeScript Performance Problems - Dimitri Mitropoulos
Wujue: A hexagon hunt-and-kill maze using Mazely
Justin Fagnani: Zena: TypeScript like language 
Bleet of the Week
Cool Links
Get the Fresh editor in the terminal
Two Ways to Roll Weighted Loot 
Undisputed Authority: Roger Martin 
Brett Codes: I'm done using AI
Music
Seahorse Dreams by Kubbi (Spotify)

News for the week of Aug 31, 2026: Vitest 5's new doctor command and perf enhancements, Rslib is now stable, and Astro 7.3 lets you run multiple preview servers at once. From the community: build circuit boards in React, TypeScript for Ruby devs, and another compile-time crime of implementing Brainf*** in TypeScript types.
Partake in the No Sloptober Challenge!
Head to no-sloptober.com to read the manifesto and see if you can challenge yourself to turn off LLMs and AI for October. 
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

(05:51) - Personal Challenge: No Sloptober

(10:53) - Tooling: Strongly-typed Normalized File Paths in the TS Codebase

(13:05) - Tooling: Ember for TS 7 Declared Ready

(14:23) - Tooling: Bun 1.4.1 Now Types Import Attributes in TS 7.1 Nightly

(14:49) - Tooling: Vitest 5 Brings Trace View, Doctor, and Temporal Mocking

(17:08) - Tooling: rslib 1.0, like TSDown But Built on rspack

(20:41) - Metaframeworks: Astro 7.3 Can Run Multiple Preview Servers at Once

(21:16) - Security: Outsource Vulnerability Remediation to Cloudflare's Managed Defense

(24:08) - Library Watch: Starlight 0.42

(25:17) - Library watch: HQTUI, a High Quality Terminal UI

(26:08) - Library Watch: tsmc, a TypeScript Runtime Written in minc

(27:27) - Library Watch: tscircuit, React for Electronics

(29:01) - Library Watch: jasypdf, Declarative PDFs in Pure TypeScript

(30:04) - Library Watch: @stdlib/stdlib, Fundamental Numerical Library for JS and TS

(30:24) - Library Watch: RetroImgHandler Can Decode, Validate, Convert, Preview, and Encode Retro Graphics

(31:12) - Library Watch: causewalk, Inner Exception Unwrapping

(33:12) - Library Watch: numpy-ts 1.7.0 is Now Faster Than Native NumPy

(34:12) - Community: Kev Helps Ruby Devs Learn TypeScript

(34:48) - Community: Hugo Wrote Brainf*** in TypeScript Types

(36:23) - Community: How Turbopack Chunks Your JavaScript by Next.js

(36:52) - Community: How Next.js Closed 1500 GitHub Issues in One Month

(38:32) - Community: What's New in Svelte, Aug 2026

(38:52) - Community: David Dal Busco Wrote Two Tiny Utils for the Result Pattern

(40:54) - Community: Matt Pocock Praises Effect.ts for Backends

(41:38) - Bleet of the Week

(42:26) - Cool Link: Bookmarklet to Open a New Tab Next to the Current One

(44:25) - Cool Link: Understanding TETRIS as a Game Developer

(45:59) - Cool Link: Orbliterate! A Game That Uses CAD for Level Design

(47:03) - The Minnesota Short Goodnight

NewsTypeScript: Strongly Typed paths example 
Ember for TS 7 declared ready 
Bun v1.4.1
Vitest 5.0 is out
Rslib 1.0 is out 
Astro 7.3 – run multiple preview servers at once
Cloudflare: Introducing context-aware vulnerability discovery and remediation
Library Watch
Starlight 0.42 documentation using Astro
HQTUI: A high-quality terminal UI library
TSMC: A TypeScript runtime written in minc
TSCircuit: React for electronic circuit boards
JASYPdf: Declarative PDFs in pure TypeScript
Stdlib: Numerical and scientific funamental standard library for JS/TS
RetroImgHandler: Encodes, decodes retro graphics
Causewalk: Think inner exception unwrapping
Numpy: 1.7.0 numpy-ts is faster than native Numpy
From the Community
Kev: TypeScript for Ruby devs · codingpaws
Hugo: Brainf*** written in TS types 
Next: How Turbopack chunks your JavaScript
Next: How we closed 1,500 GitHub issues in one month 
Svelte: What’s new in Svelte: September 2026 
David Dal Busco: Two Tiny Utils for the Result Pattern 
Effect: Matt Pocock praises Effect.ts 
Bleet of the Week
Cool Links
Bookmarklet from Dr. Axel: Open new tabs next to current
Understanding TETRIS As a Game Developer 
Orbliterate! uses parametric CAD for levels with TypeScript scripting for game logic
Music
Seahorse Dreams by Kubbi (Spotify)