iiinova — where your digital self keeps evolving

More and more developers are migrating to MSW 3.0. This is great to see. Meanwhile, I'm addressing reported issues to make sure you have the best mocking experience possible.

A digital display shows version number v3.x alongside a statistic of 346.4K, suggesting a software or app usage metric.

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Artem Zakharchenko @kettanaito.com · 08/10/2026

I am beyond thrilled to welcome @beehiiv.com as MSW partner! Their support makes sure I can keep working on better API mocking for everyone. Thank you ❤️

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Artem Zakharchenko @kettanaito.com · 08/10/2026

MSW 3.0 brings granular import paths to keep that module graph under control. While we're keeping the root "msw" exports as-is (apart from "graphql"), the recommended way to import things is from the designated import paths.

Code snippet showing various import statements from the MSW (Mock Service Worker) library for handling different types of web requests.

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Artem Zakharchenko @kettanaito.com · 07/10/2026

Integrating MSW into Vite-based projects has become silly simple with the new "msw/vite" plugin! And yes, this works with Vitest, too. The plugin integrates MSW client and server-side and keeps the worker script up-to-date for you, automatically.

Code snippet shows a Vite configuration file importing and using the MSW plugin for application integration.

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Artem Zakharchenko @kettanaito.com · 05/10/2026

I've moved the docs for all the ecosystem packages under mswjs.io and refreshed their logos to be more aligned. Hopefully, this will help developers discover you can do much more with your API mocks!

A dropdown menu displays options related to Mock Service Worker, including MSW, Source, Data, and Serve, with a clean, modern design.

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Artem Zakharchenko @kettanaito.com · 28/09/2026

It appears I've got a release that fixes.

A list of software fixes with bullet points and checkmarks, highlighting specific terms in blue such as "forbidden" and "Native."

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Artem Zakharchenko @kettanaito.com · 26/09/2026

Thanks! Sorry, but it called for a meme.

A Spider-Man meme saying "You know I'm somewhat of a writer myself".

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Artem Zakharchenko @kettanaito.com · 25/09/2026

I need to start public shaming companies and projects that still patch globals in 2026. Nothing speaks of myopic, juvenile API design like mutating things you don't own. Look, one of the alternatives from me, for free:

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Artem Zakharchenko @kettanaito.com · 25/09/2026

It's a patch version, have mercy!

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Artem Zakharchenko @kettanaito.com · 24/09/2026

Have to make some changes to the EPUB of my book, which gives me one more reason to dogfood @bytebinding.com. Nice.

A screenshot of the Byte Binding application open on the book details page, featuring the cover image for the book Loggerheads.

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Artem Zakharchenko @kettanaito.com · 23/09/2026

Man, I just want to know the proper names of all the sounds a dog makes. I'm not a toddler, I'm a writer, I swear.

Icons of various animals: dog, moose, rat, dove, zebra, each with a sound button indicating the sounds they make.

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Artem Zakharchenko @kettanaito.com · 21/09/2026

This is such a silly mistake and yet I see you making it all the time in your tests. ❌ Do NOT run cleanup after assertions ✅ Schedule the cleanup via hooks or use Disposable Objects A seemingly tiny change that'll have tremendous impact on your tests, especially memory-wise.

Code snippets illustrate proper and improper cleanup methods for WebSocket tests, emphasizing memory management in asynchronous operations.

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Artem Zakharchenko @kettanaito.com · 17/09/2026

Come learn component testing from me in person! Accessibility-first, beautifully set up, and running in a real browser with Vitest. One of my best selling workshops on Epic Web now live. 📆 October 5th, 9:00 🇨🇿 Prague More info: www.frontkon.tech/events/fron...

A photo of me giving a public talk in front of a crowd.

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Artem Zakharchenko @kettanaito.com · 15/09/2026

It's crazy how Vitest has replaced not just JSDOM but also React Testing Library with their Browser Mode. I'm absolutely loving this 😍 Once you write a single test like this, you will never want to go back.

A TypeScript test file using Vitest to check a code snippet’s functionality, specifically for copying code to the clipboard.

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Artem Zakharchenko @kettanaito.com · 13/09/2026

In the new version of MSW docs, all code snippets will feature type definitions for all APIs thanks to Shiki's fantastic Twoslash. This will also allow us to drop redundant explanations as you can inspect the types yourself now.

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Artem Zakharchenko @kettanaito.com · 12/09/2026

Why would I rate my own book? What kind of elaborate trap is this? No author should be the subject of such open cruelty.

The rating prompt from Goodreads for me to rate my own book.

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Artem Zakharchenko @kettanaito.com · 12/09/2026

What a heartwarming review to see 😊 I hope more people enjoy the stories I write for myself.

Five-star review praising a heartfelt love story, highlighting its engaging nature and satisfying conclusion.

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Artem Zakharchenko @kettanaito.com · 10/09/2026

Question: can I schedule a callback to the absolute end of the event loop, no matter how many frames it will have? Example:

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Artem Zakharchenko @kettanaito.com · 10/09/2026

Say what you want, these look real nice together.

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Artem Zakharchenko @kettanaito.com · 10/09/2026

If you let your agent write component tests for you, you're in BIG trouble. Why? Because agents were trained on prehistoric tests still using JSDOM. Yikes 🤢 Join me on 📆 October 5th in 🇨🇿 Prague for a live workshop to learn component testing in the real browser with Vitest.

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Artem Zakharchenko @kettanaito.com · 10/09/2026

A Vite plugin allows MSW to have a single, unified, and automated integration that's pre-configured for the environment. A single "virtual:msw" is your entrypoint to anything network throughout the app. See this example of both client and server mocking in TanStack Start.

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Artem Zakharchenko @kettanaito.com · 07/09/2026

Sometimes you're successful in your 30s. Something in your 40s. What matters is your continuous delivery.

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Artem Zakharchenko @kettanaito.com · 03/09/2026

I take back all I said about Windows. This is funny.

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Artem Zakharchenko @kettanaito.com · 02/09/2026

Can someone explain GitHub usage billing to me. This is wild. I had 700 out of 3000 minutes a few hours ago when I got Pro. Since then, I had 6 commits triggering actions, 145m total. This is 2,5h at best. How did I manage to max out the 3000 minutes quota?

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Artem Zakharchenko @kettanaito.com · 01/09/2026

Not cool, man. Not cool. And you know how I noticed this? My generated routeTree file went insane and began dancing while I switched between branches.

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Artem Zakharchenko @kettanaito.com · 30/08/2026

Now, my designing days are long behind me. The best I can do for now in the software I build is to provide contextual separation for the actions usually stuffed in a single toolbar. Let's break this down.

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Artem Zakharchenko @kettanaito.com · 30/08/2026

User interfaces have settled on the somewhat standardized functionality of inline toolbar, that being reminiscent of the software older than many reading this post. But here's the thing: it's coming from the era where very little consideration was given to things, to begin with.

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Artem Zakharchenko @kettanaito.com · 30/08/2026

I have such a bone to pick with inline toolbars. Have you ever stopped to consider how terribly they are designed? A rant on toolbar design:

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Artem Zakharchenko @kettanaito.com · 30/08/2026

Here's how all the pieces come together to create a session:

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Artem Zakharchenko @kettanaito.com · 28/08/2026

All things considered, Zed is a gorgeous editor.

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Artem Zakharchenko @kettanaito.com · 28/08/2026

MSW hits another big milestone: 200,000 repositories on GitHub depend on it for their tests and development. Thank you for choosing tools made with care ❤️

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Artem Zakharchenko @kettanaito.com · 26/08/2026

I want you to read this module carefully and then realize that this is an Electron app view that reads from fs both on load and user action and then displays a dynamic context menu based on data sent from the client. What a proper RPC does to a man, huh.

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Artem Zakharchenko @kettanaito.com · 26/08/2026

Me: I gotta make this code faster, there's no way it takes 2s+ to run. The code:

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Artem Zakharchenko @kettanaito.com · 25/08/2026

Solid 2.0 nails async data fetching in the most elegant way I've seen so far. Just take a look at this beauty: blocking vs non-blocking data fetch.

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Artem Zakharchenko @kettanaito.com · 21/08/2026

Someone broke this little fellow for Gmail and it's infuriating.

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Artem Zakharchenko @kettanaito.com · 19/08/2026

Really digging TanStack's new logo.

The umbrella from the Bring Me The Horizon's album "That's The Spirit".

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Artem Zakharchenko @kettanaito.com · 14/08/2026

Wake up, honey, a new side quest just dropped.

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Artem Zakharchenko @kettanaito.com · 12/08/2026

I love tinkering with CSS animations 😍

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Artem Zakharchenko @kettanaito.com · 11/08/2026

Tell me you don't have respect for your time without telling me. I'm never going back to Windows.

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Artem Zakharchenko @kettanaito.com · 09/08/2026

Here's the cover I did for Loggerheads.

A book cover for the Loggerheads novelette.

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Artem Zakharchenko @kettanaito.com · 09/08/2026

The logic in Apple's Silo is in short supply.

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Artem Zakharchenko @kettanaito.com · 07/08/2026

The server-side fetch discussion got me thinking that, perhaps, what we need is a proper, environment-agnostic representation of the underlying primitive of the network—HTTP message.

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Artem Zakharchenko @kettanaito.com · 05/08/2026

Seems like people trust my profile as it is.

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Artem Zakharchenko @kettanaito.com · 05/08/2026

So I built Byte Binding. I've already published my debut book, Loggerheads, with an early prototype of it, and I enjoyed the process so much I decided to make a full app out of it for every author out there who cares about beautiful editions of their books.

A screenshot of the Byte Binding application open. A "Chapter I" heading is visible on the page in the middle, followed by the book's contents. A style is being edited in a sidebar to the right. A book's outline is listed to the left.

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Artem Zakharchenko @kettanaito.com · 27/07/2026

5. Finished GraphQL subscriptions support that's coming in MSW 3.0.

Code snippet showing a GraphQL subscription that publishes a comment with the text "hello world" to a specified API endpoint.

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