iiinova — where your digital self keeps evolving

Maël Nison @mael.dev · 19/08/2026

We have some support in 6.x for node.js and python releases. I'd like to eventually have support for arbitrary tools, if you have ideas I'd love to review!

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Simon Boudrias @sboudrias.bsky.social · 04/08/2026

We deleted a year of AI context files—and our evals got better. On The AI Native Dev podcast, I share what changed as Datadog scaled AI coding tools to 1,000+ engineers. tessl.co/sb6 #AIagents #DevEx

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Maël Nison @mael.dev · 26/06/2026

Heard Weird Al forbids people to stand

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Maël Nison @mael.dev · 13/06/2026

It's been the case for companies working on ITAR deployments (only american citizen could deploy them), but generalizing that to the core offering is draconian. And now that this weapon has been used once, we can expect this administration to add it to their arsenal.

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Maël Nison @mael.dev · 12/06/2026

Experimental package map support has been merged ! Now on to implement generation support into both Yarn and pnpm 🚀

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Maël Nison @mael.dev · 08/06/2026

I see Bluesky still doesn't support group DMs 🫠 I should arrive at Central Wednesday around 3pm - wanna have a teatime in a pub somewhere?

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Maël Nison @mael.dev · 31/05/2026

Rest well, no rush 🙏

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Maël Nison @mael.dev · 25/05/2026

I'll be at #jsnation EU in Amsterdam on June 11 to talk about @yarnpkg.dev's Rust rewrite! Met amazing people every year, will anyone be there as well? @acemarke.dev @danielroe.dev @tkdodo.eu @nicr.dev maybe?

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Maël Nison @mael.dev · 21/05/2026

McDonald's France just made a reset of all passwords, so there's that 😄

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Yarn @yarnpkg.dev · 19/05/2026

We just released the 4.15 branch 🎊 One important change is that npmMinimalAgeGate will now default to 1d for new projects.

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Maël Nison @mael.dev · 14/05/2026

Because the verb "approve" feels explicit enough, but I welcome better names.

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Maël Nison @mael.dev · 14/05/2026

Oh come on. Only if you also explicitly have `approvedGitRepos: ["**"]`, and at this point congratulations, you played yourself.

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Maël Nison @mael.dev · 13/05/2026

Let me tell you, "sustainability in OSS" is going to become a matter of mental health rather than money more than ever before. I fear the field will get toxic pretty fast as projects start competing entirely on social marketing antics 🫤

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Maël Nison @mael.dev · 12/05/2026

For Yarn I'd suggest to use `npmMinimalAgeGate: 1d`. Unitless is allowed as well but better make it explicit!

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Yarn @yarnpkg.dev · 12/05/2026

Reminder that Yarn lets you filter out fresh packages with `npmMinimalAgeGate` and it's a good idea to use it on your work repos!

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Maël Nison @mael.dev · 12/05/2026

Pinning was only tangentially about security. Its main impact was for determinism. Security features should imo come from the npm registry, which is still unable to provide a basic two-auth publish workflow compatible with automations.

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Maël Nison @mael.dev · 10/05/2026

Visuel du premier opus 😁

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Maël Nison @mael.dev · 08/05/2026

That doesn't really mean anything - if you point Opus at the relevant files and ask to find the bug it'll find them, of course. Same for a human. It's conceivable that the model is particularly good by sheer virtue of not needing to know which files and interaction must be scrutinized.

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Maël Nison @mael.dev · 29/04/2026

My personal view is that *npm* has been holding hostage the npm registry. I'm pretty sure Microsoft bought it only to avoid the catastrophic possibilities of the registry going down.

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Maël Nison @mael.dev · 24/04/2026

I never clone any repro project in a GH issue unless I personally know the person for this reason

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Maël Nison @mael.dev · 20/04/2026

I'll be speaking at #JSNation to tell you the story of how we ported Yarn to Rust over the past year, and what we learned doing that (A LOT 😁) Check out my #JSNation badge: gitnation.com/badges/jsnat.... Register via the badge and watch the stream for FREE! See you on June 11 & 15.

gitnation.com

Check out my badge & claim your free JSNation 2026 remote ticket!

Join 10k engineers worldwide at JSNation 2026 and meet 50 top speakers at June 11 - 15, 2026

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Maël Nison @mael.dev · 17/04/2026

I don't understand why GH doesn't provide "max age" / "max depth" / "checkpoint commit" mechanisms to make this more acceptable to high-velocity repositories.

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Maël Nison @mael.dev · 17/04/2026

Is *anyone* using "Require branches to be up to date before merging" ? Always saw this setting as pretty harmful (N people update their branch in the hope to merge, only one can, all others wasted their CI time; rinse and repeat).

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Yarn @yarnpkg.dev · 17/04/2026

We just released the 4.14 branch! 🎊 Two important security changes: - `enableScripts` now defaults to `false` (can be overridden on a per-package basis) - A new `approvedGitRepositories` setting should be used to tell Yarn which git repos are safe to pack.

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Maël Nison @mael.dev · 10/04/2026

I'm working on a feature called package maps for Node.js - it's leveraging everything I learned about package resolution these past six years, in a design that's both simple and flexible enough to be backward compatible with existing installs. I'm very excited about this! github.com/nodejs/node/...

github.com

loader: implement package maps by arcanis · Pull Request #62239 · nodejs/node

This PR adds a new --experimental-package-map=<path> flag letting Node.js resolve packages using a static JSON file instead of walking node_modules directories. node --experimental-package-ma...

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Maël Nison @mael.dev · 19/03/2026

I don't doubt you only use it for that, but the wording is way scarier; how come it can't be tuned down? > We use optional cookies to improve your experience on our websites, such as through social media connections, and to display personalized advertising based on your online activity

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Maël Nison @mael.dev · 19/03/2026

It should go without saying: Yarn isn't and will never be a company. My vision of sustainable OSS has always been that not only should the tool be free, but its maintainers as well.

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Maël Nison @mael.dev · 11/03/2026

Money is fungible so I'd assume they can fold every contribution and payout to obtain a single number for everyone, no need to even recurse, algorithmically speaking? 🤔

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Maël Nison @mael.dev · 03/03/2026

I got my kid interested in his first fantasy book! We read one chapter every day 🥰 www.goodreads.com/book/show/21... by @liliwilkinson.bsky.social

goodreads.com

Bravepaw and the Heartstone of Alluria (Bravepaw #1)

An epic Tail of Adventure! Can one gallant mouse find t…

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Maël Nison @mael.dev · 26/02/2026

Perhaps a silly question - are multi-tenancy OSes legacy at this point? It feels like every machine nowadays only ever use a single user (perhaps a second for root). As far as I understand it even cloud deployments went away from unix's multi-user towards virtualization.

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Maël Nison @mael.dev · 24/02/2026

I'm implementing task management primitives into Yarn. I think tools like Turbo having to parse the lockfile is sign enough that they should be native features. Scripts have always been too limiting for local development.

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Maël Nison @mael.dev · 20/02/2026

The state of GitHub's "Require status checks to pass before merging" section is incredible. Never saw what should be such a simple feature that simply couldn't work in two different companies. I get 500s just by searching for my jobs !

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Maël Nison @mael.dev · 12/02/2026

We got stuff done while the US screamed "but the cookie banner" 🤭

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Maël Nison @mael.dev · 02/02/2026

I always found it both nice and an incredible privacy nightmare. Can you imagine what groups like ICE would do with that?

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Maël Nison @mael.dev · 30/01/2026

Yeah, JS is surprisingly efficient. Although Yarn's case we also have to deal with network overhead, even trickier to optimize!

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Maël Nison @mael.dev · 30/01/2026

I'd tread carefully with this one. The arbitrary aspect makes me think it's the kind of thing that can turn toxic if not very carefully managed.

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Maël Nison @mael.dev · 29/01/2026

I can now say it: Rust is really neat. I'm still on my learning journey, but I like many of its constructs. And I'm in love with pattern matching.

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Maël Nison @mael.dev · 28/01/2026

I added a compatibility layer to support Corepack when a special environment variable is set (yarn6.netlify.app/getting-star...), but it's a bit of a hack and once Yarn Switch is stable it'd be best to use it

yarn6.netlify.app

Installation

Yarn's in-depth installation guide.

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Maël Nison @mael.dev · 28/01/2026

Outside of that it's just the codename for this new codebase, same as Berry was the codename for the TS one.

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Maël Nison @mael.dev · 28/01/2026

Got this one too. Are you using references and perhaps a pnpm-style symlinked install?

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Maël Nison @mael.dev · 28/01/2026

Noticed the amazing website? It's built with @astro.build from the ground up thanks to the help of the fine folks at luckymedia.dev, and the GLSL mad skills of shadertoy.com/user/Kali 😊

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