TypeScript.fm - The Friendly Show for TypeScript Developers

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.jsExcalibur.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.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyChapters(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 v1.4.1Vitest 5.0 is outRslib 1.0 is out Astro 7.3 – run multiple preview servers at onceCloudflare: Introducing context-aware vulnerability discovery and remediationLibrary WatchStarlight 0.42 documentation using AstroHQTUI: A high-quality terminal UI libraryTSMC: A TypeScript runtime written in mincTSCircuit: React for electronic circuit boardsJASYPdf: Declarative PDFs in pure TypeScriptStdlib: Numerical and scientific funamental standard library for JS/TSRetroImgHandler: Encodes, decodes retro graphicsCausewalk: Think inner exception unwrappingNumpy: 1.7.0 numpy-ts is faster than native NumpyFrom the CommunityKev: TypeScript for Ruby devs · codingpawsHugo: Brainf*** written in TS types Next: How Turbopack chunks your JavaScriptNext: 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 WeekCool LinksBookmarklet from Dr. Axel: Open new tabs next to currentUnderstanding TETRIS As a Game Developer Orbliterate! uses parametric CAD for levels with TypeScript scripting for game logicMusicSeahorse Dreams by Kubbi (Spotify)

News for the week of August 24, 2026: pnpm 12 brings a bunch of quality of life updates, htmx 4 makes attribute inheritance easier, and both Remix and Waku get release candidates. From the community: type-level dice rolls (what!), full-stack type safety for TS and .NET, and committing compile-time crimes.Sponsored by Excalibur.jsExcalibur.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.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyChapters(00:00) - Welcome to the Show (05:19) - Tooling: TypeScript Repo Migrated to TS 7 (06:31) - Tooling: Ambient Module Declarations for Import Attributes in TS 7 (08:02) - Tooling: Porforr Alpha is Out (10:21) - Tooling: pnpm 12 Brings a Long List of Updates (14:37) - Frameworks: Ember is Now Supported in TS 7 Nightly (15:06) - Frameworks: htmx 4 Released (19:09) - Frameworks: Remix 3 Release Candidate is Here (20:50) - Frameworks: Waku 1.0 Release Candidate is Here (21:53) - Web Platform: WebMCP Challenge by Netlify (22:48) - Web Platform: Chrome 152 Brings CPU Performance API, Connection Allowlists (25:54) - Web Platform: Firefox 155, Now with Nintendo Switch Pro Controller Support (27:45) - Web Platform: Firefox on iOS Can Now Block Ads (28:02) - Security: Next.js August 2026 Security Releases (29:19) - Security: Nuxt August 2026 Security Releases (30:42) - Security: Mini Shai-Hulud on OpenAPI React Query Codegen Packages (31:44) - Library Watch: minitype, Japanese Language Typesetting (32:40) - Libary Watch: Joist ORM 2.3, Now with Rails-style Scopes (33:51) - Library Watch: vgpu, a TypeScript Library for WebGPU (34:51) - Library Watch: drdice, Deterministic Dice Rolls... in Types (36:48) - Community: John Reilly's TS Migration Benchmark Harness (38:43) - Community: Josh Goldberg Interviews Daniel Rosenwasser on TS 7 and What Comes Next (39:02) - Community: Jake Archibald on Controlling When CSS Custom Properties are Computed (39:25) - Community: Niklas Bruhn Teaches Us Lean, Explained with TypeScript (41:58) - Community: Nx on Full Stack Type-safety with .NET (43:42) - Community: 6 AppSec CTOs Debate Supply Chain Attacks (44:19) - Community: dearlordylord on Branded Types and the Connascence of Execution (46:41) - Community: Hugo Vilela Committed Some Compiler-time Crimes (47:26) - Community: Amin Khansari Talks About Designing with Types (48:55) - Community: Remo Jansen on RFLCT, Runtime Type Metadata in TS 7 (50:53) - Community: Ghostty in the Browser with gespenst.dev (51:20) - Community: Jack LaFound Uses TS to Obtain One of the Rarest License Plates (51:58) - Bleet of the Week (52:17) - Cool Link: Now THAT's a Big Dragon Game on Steam (52:41) - Cool Link: Venkat Subramaniam on AI Coding (55:42) - The Minnesota Long Goodbye NewsTooling: Main TypeScript repo migrated to TS 7Tooling: Ambient Module Declarations for Import Attributes (formerly known as Import Assertions)Tooling: Porforr Alpha is outTooling: pnpm 12 gets a bunch of updates!Ember: supported in TS 7 htmx: htmx 4.0.0 has been released!Remix: Remix 3 Release CandidateWaku: Waku 1.0 (RC) Netlify: OpenAI WebMCP Challenge: Build with Netlify Chrome: Chrome 152 releasedFirefox: Firefox 155.0 releasedPlus: Reduce clutter and distractions with Ad Blocker for Firefox on iOS Security CornerNext.js: August 2026 Security ReleaseNuxt: Nuxt Security Patch Releases Socket: Mini Shai-hulud compromise of OpenAPI packagesLibrary WatchMinitype: Japanese TypeSetting in TypeScript Joist ORM: Joist 2.3 Released with Rails-style Scopes! vercel-labs/vgpu: a TypeScript library for WebGPU  Reminds us of twigl dearlordylord/drdice: Type-level dice rolling From the CommunityJohn Reilly: Benchmark Harness Josh Goldberg w/Daniel Rosenwasser: TypeScript 7 and What Comes NextJake Archibald: Controlling when CSS custom properties are computed Niklas Bruhn: Lean explained with TypeScript Nx: Polyglot monoreposSecure Disclosure Podcast: 6 AppSec CTOs Debate Open Source Supply Chain Security at Black Hat Igor (dearlordylord): Branded types and the connascence of execution Hugo Vilela: I Patched the TypeScript Compiler to Add Up Nine NumbersAmin Khansari: Series: Designing with Types: A TypeScript + Effect ApproachRemo H. Jansen:  RFLCT: Bringing Runtime Type Metadata to TypeScript 7 - DEV Community Ghostty in the Browser: gespenst Jack LaF...

News for the weeks of Aug 10 and 17, 2026: major version releases from Bun, ElectroBun, SolidStart, and SvelteKit along with Aspire 13.5, which makes TypeScript app hosts generally available. From the community: self-hosted Durable Objects, anti-slop lint rules, hiding internal state in TS objects, and the true cost of AI coding.Sponsored by Excalibur.jsExcalibur.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.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyChapters(00:00) - Welcome to the Show (05:32) - Tooling: Content Mappers Merged Into TS 7.1 API (07:20) - Tooling: Bun 1.4, the One with Rust (10:27) - Tooling: Aspire 13.5, TypeScript App Hosts Now GA (13:13) - Metaframeworks: SvelteKit 3 Release Candidate is Here (15:33) - Metaframeworks: SolidStart V2 is Now Stable (17:24) - Web Platform: celld, Self-Hosted Workers and Durable Objects (19:02) - Web Platform: Cloudflare Announces $1 Million in Open Source Funding (20:36) - Web Platform: Node.js Interactive 2026 Talks (22:37) - Web Platform: Netlify Source for Hosting Git Version Control (24:20) - Security: Popular Rust Crates Compromised (25:29) - Library Watch: Slonick, a Node.js Postgres Client (27:12) - Library Watch: deopt, Analyze Node.js and V8 De-optimizations (29:15) - Library Watch: Electrobun 2, Now with a Custom Runtime (35:24) - Library Watch: Anti-slop Lint Rules (36:54) - Library Watch: yavascript Builds Cross-platform Bash-like Script Runners (38:46) - Community: Ryan Peterman Interviews Anders Heijlsberg (39:20) - Community: Matt Pocock Interviews Uncle Bob on Software Fundamentals in the Age of AI (39:43) - Community: Josh Goldberg Steps Back from OSS (41:21) - Community: Academind Teaches Us About Self-hosted Durable Objects (41:32) - Community: Remco Wrote an MDX Content Mapper for TS 7 (42:28) - Community: Feross Aboukhadijeh on How AI Agents Expand the Software Supply Chain Attack Surface (43:26) - Community: I would like to personally apologize to the creators of TypeScript (44:50) - Community: Scott Tolinksi on the True Cost of AI Coding (45:53) - Community: Carlos Menezes on Hiding Internal State in TS Objects (48:10) - Community: Tommy Rossi's Manifesto on Errors as Values in TS (49:58) - Community: Brett Codes on How to Make TypeScript and JavaScript Error Handling Better (50:34) - Community: Tero Piirainen Thinks the Bun 1.4 Rust Rewrite is Not Looking Good (52:08) - Community: GameDev.js Survey 2026 is Open (52:32) - Bleet of the Week (54:04) - Cool Link: Don't Paste the AI (59:14) - Cool Link: Local-first Landscape (01:00:34) - The Minnesota Long Goodbye NewsTypeScript: Content Mappers merged into 7.1 branch Bun: Bun 1.4 (Video: Bun v1.4 )Aspire: What's new in Aspire 13.5Svelte: The SvelteKit 3 Release Candidate is here Solid: SolidStart v2 is now StableDeno: celld, self-host your own Durable ObjectsCloudflare: Announcing Cloudflare Ambassadors, Community Engineers, and another $1M in open-source funding Node.js: Node.js Interactive 2026: A Recap Netlify Source: The full power of Git, without the friction: A conversation with Netlify CTO Dana LawsonSocket: Popular Rust Crates Compromised in Build-Time Supply Chain Attack Library Watchgajus/slonik: A Node.js PostgreSQL client with runtime and build time type safety, and composable SQLdeopt: Analyze Node.js and V8 de-optimizationsElectrobun 2.0 comes with a new purpose-built runtime and CLIAnti-slop lint rules Biome https://github.com/kualta/anti-slop Oxlint https://github.com/dmmulroy/anti-slop YavaScript lets you build cross-platform Bash-like script runnersFrom the CommunityRyan Peterman: Creator of TypeScript: 10x Faster Typescript, Why AI Won't Replace SWEs | Anders HejlsbergMatt Pocock: Uncle Bob on Software Fundamentals in the Age of AI Josh Goldberg: Stepping Back from Open Source (Mostly) | Goldblog Josh Goldberg: https://bsky.app/profile/joshuakgoldberg.com/post/3mtehtwtyrs2i Academind: Self-hosted durable objects are pretty interesting! Remco: mdx-content-mapper for TS 7 Feross Aboukhadijeh: How AI Agents Expand the Software Supply Chain Attack Surface Reddit: I would like to personally apologize to the creators of TypeScript Scott Tolinski: The True Cost of AI Coding Carlos Menezes: Hiding internal state in TypeScript objectsTommy Rossi: Errors as Values in TypeScriptBrett Codes: TypeScript & JavaScript error handling is pretty bad (and how to make it better) Tero Piirainen: Bun 1.4 Rust rewrite is not looking good

News for the week of August 3, 2026: Astro 7.2 adds incremental static builds, SvelteKit 3 preview, and a closer look at TypeScript 7.1 compiler APIs. From the community: build your own "isThingy" type guards, eliminating 'any' types using oxlint, and how it went adding Go's defer keyword to TypeScript.Sponsored by Excalibur.jsExcalibur.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.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyChapters(00:00) - Welcome to the Show (06:32) - Tooling: TypeScript 7.1 API Feature Roadmap (11:34) - Metaframeworks: Astro 7.2 Introduces Experimental Incremental Static Builds (12:44) - Metaframeworks: Sweltering Updates in SvelteKit 3 Preview (14:14) - Web: Cloudflare Open Sources an Issue Triage Agent (18:16) - Web: GitHub Now Supports Stacked Pull Requests (22:24) - Library Watch: zodql, Enforce Zod Schemas for GraphQL (24:11) - Library Watch: TanStack Form v2 is in Alpha (26:17) - Library Watch: TanStack Table V9 (28:08) - Library Watch: is-kit Lets You Build Your Own Type Guards (29:23) - Library Watch: typesafe-ts is Like a Toned Down Effect (31:14) - Library Watch: antiox, Rust-like Async Primitives for TypeScript (33:08) - Library Watch: apiful, a Fetch Client You Compose (33:53) - Community: Andrew Healey Adds Go's defer Keyword to TypeScript (36:24) - Community: Mastodon Upgrades to TypeScript 7 (36:57) - Community: Next.js on How They Made Navigations Instant in v0 (39:14) - Community: Mauro Bieg on How to Build a TypeScript Web Framework With No Build Step (39:52) - Community: Sam Rose Found a Bug in Kubernetes Thanks to Webernetes (41:35) - Community: afox.dev Releases Luna.nvim, a Minimal Neovim Theme (42:32) - Community: Silvenon's Oxlint Config to Eradicate any in Your Codebase (43:23) - Bleet of the Week (44:21) - Cool Link: tuicr Lets You View Side-by-Side PR Diffs in Your Terminal (46:12) - Cool Link: Green Building Advisor (48:17) - The Minnesota Long Goodbye NewsTypeScript: API feature roadmap #4830 - microsoft/typescript-go Astro 7.2 brings incremental static buildsWhat’s new in Svelte: August 2026Cloudflare: How we built a software factory to drive Astro’s GitHub issue count to zero GitHub: ICYMI, Stacked pull requests Library Watchzodql: Enforce Zod schemas for your GraphQLPlus: https://github.com/enormora/schema-hub Plus: gql.tada TanStack Forms v2: Form v2 is here: All you need to know about the alphaTanStack Table v9: Announcing TanStack Table V9 is-kit: Build isThingy style type guardstypesafe-ts (via Allan Duetsch): Runtime typesafety helpersantiox: Rust like async primitives for Typescriptapiful: a fetch client you composeFrom the CommunityAndrew Healey: Adding Go's defer to the TypeScript CompilerMastodon: Now written in TS7 Next: Making Navigations Instant in v0 Mauro Bieg: A TypeScript web framework with no build stepSam Rose: Found a bug in kubernetesLuna.nvim: Minimal colorscheme for TS Matija Marohnić: Eradicate as any with oxlint Bleet of the WeekCool LinksGitHub - agavra/tuicr: a code review TUI with vim keybindings ("tweaker")Green Building Advisor for all your high-performance building needsDiscord: Kamran's backyard studio build threadMusicSeahorse Dreams by Kubbi (Spotify)

News for the week of July 27, 2026: insights into what's coming in TS 7.1, rendering JSX and TSX natively using ASP.NET Core, and Elysia gets rewritten with the new v2 beta. From the community: semantic versioning spec for types, a typesafe TSConfig builder, and lessons learned migrating ts-loader with AI.Kamran's New Course: React 19 Security and SafetyWatch on Pluralsight. Learn how to deal with and protect yourself from real-world threats like XSS, CSRF, and supply chain attacks with full-stack React applications. Sponsored by Excalibur.jsExcalibur.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.comMake Your First Game in 10 MinutesJoin the Discord: https://discord.gg/9UemP985UyChapters(00:00) - Welcome to the Show (04:53) - Tooling: TypeScript 7.1 Iteration Plan (07:29) - Tooling: TypeScript ESLint Still Needs TS 6 For Now (09:02) - Tooling: Emacs TypeScript LSP Fixed (09:24) - Tooling: JsxCore is a Native JSX/TSX View Engine for ASP.NET Core (12:50) - Tooling: Notion as Code (in TypeScript) (14:31) - Metaframeworks: Nuxt July Security Patches (15:22) - Metaframeworks: Elysia 2 Beta is a Full Rewrite (18:08) - Web: Cloudflare Workers RPC Now Works Across Python and JavaScript (21:00) - Web: Chrome 151 Adds User Media Element (23:56) - Security: Ongoing npm Supply Chain Attack for keyv and cacheable Scopes (25:56) - Security: Node July Security Releases (26:24) - Library Watch: semver-ts, a Spec for Versioning Types (28:03) - Library Watch: JS2WASM Compiler is in the Experimental Phase (30:40) - Library Watch: PeurTS, Write TS in Unity, Unreal, and .NET (32:03) - Library Watch: dynwinrt, Mess with WinRT APIs in TypeScript (34:16) - Library Watch: syt, Type-safe TSConfig Builder (35:09) - Library Watch: rm-pushnotify, Cross-browser Push Notifications (37:05) - Library Watch: mazely, a Maze Editor and Solver in TypeScript (38:05) - Library Watch: inclusive-color, a Color Space for Human Skin Colors (39:00) - Community: Are the Types Wrong? (39:58) - Community: John Reilly Migrated ts-loader to TypeScript 7 (41:16) - Community: Jake Worth Shares Daily TypeScript Notes in Your Inbox (42:13) - Community: Tabularis Ported Their Visual EXPLAIN Rust Parsers to TypeScript (43:14) - Community: Jake Archibald Wants Us to Learn From His Tool Tip Accessibility Mistake (44:57) - Community: Debugging TypeScript Applications Book by Andrey Ozornin (45:50) - Community: David Sherret Made TS AST Viewer Support TS 7 (46:42) - Bleet of the Week (48:48) - Cool Link: Reliability Lessons from SQLite by Richard Hip (51:24) - Cool Link: Why I Delete My Tests Every Night by KCD (52:02) - Cool Link: Nirvanna the Band the Show (54:23) - The Minnesota Long Goodbye NewsTypeScript: 7.1 iteration plan PSA TS 6/7 - typescript-eslint and others that depend on compiler apis emacs LSP fixedJsxCore: Native JSX + Preact/React support for ASP.NET Core MVC Notion: In beta, Notion as codeNuxt: Nuxt Security Patch ReleasesElysia: Elysia 2 beta - DayDream Cloudflare: Workers RPC now works across Python and JavaScript  Chrome: New in Chrome 151 Socket: Popular npm Packages in the keyv and Cacheable Namespaces Compromised in Active Supply Chain Attack Node: July Security ReleasesLibrary Watchsemver-ts: Semantic Versioning for TypeScript Types JS2: JS to WASM AOT Compiler Puerts: TS in Unreal Engine or Unity in TS!?! dynwinrt: Mess with WinRT APIs using TS syt:  a typesafe builder for tsconfigs (via domutala)rm-pushnotify: Browser push notifications libraryMazely: Maze editor and generation in TS Inclusive Color: Inclusive human skin color spaceFrom the CommunityAre The Types Wrong: Tool for checking declaration filesJohn Reilly: Migrating ts-loader to TypeScript 7.1 with AI Jake Worth: TypeNotes – Daily learning notes for TS and JS developers Tabularis: Visual EXPLAIN beyond the app: one engine, multiple hosts (c/w LLM-assisted)Jake Archibald: Fixing my tooltip accessibility mistake Andrey Ozornin: Debugging TypeScript Applications: Build Web Apps That Don't BreakDavid Sheeret: TS Ast viewer supports 7Bleet of the WeekCool LinksTake some lessons from Reliability Lessons From SQLite - Richard Hipp | SSW 2026 You should watch Nirvana the Band the ShowStop Being Tricked by theprimeagen<...