[emerongi]

> Yarn pulls packages from registry.yarnpkg.com, which allows them to run experiments with the Yarn client. This is a proxy that pulls packages from the official npm registry, much like npmjs.cf.[0]

Time will tell whether they only want to be proxying NPM or will allow direct pushing to their own registry. If they do, JS ecosystem might see another big shift.

[0] http://blog.npmjs.org/post/151660845210/hello-yarn

[jlongster]

That big shift will have to happen first. I don't see them ever making their own registry unless 99.99% of people are using yarn and are having a lot of problems with the current npm registry. While I see a lot of people using yarn, I'm not sure about 99.99% and I think npm's registry itself is pretty good.

So I don't think interests will ever align to create a new registry. Nobody wants to do that. That would have serious consquences for the JS community and would take years to recover, in my opinion.

[evv]

Why would it be a bad thing to support additional repositories? Personally, I don't like how centralized the JS ecosystem is.

For example, if I refer to 'left-pad', it would default to 'npmjs.org/left-pad'. If the author goes rougue, I think it would be great to enable people to publish and consume 'thirdparty.com/left-pad'

Disclosure: I'm a FB employee with no knowledge of our plans in this regard

[swang]

1. any left-pad issue has been "eliminated" with the new rules npm (the company) has enforced.

2. you can already have your own version of thirdparty/left-pad by maintaining your own npm repository. i think what your parent post is referring to is facebook saying we're going to make our own public node/javascript package registry and you should publish to our registry.

doing this at the moment does nothing for the community other causing a lot of pain points. ex) now npm authors will have to publish to both registries so developers don't have to dig to find where it was published to, then they also have to hope that someone else didn't register the module name in one of the registries..

there is just too much splintering if facebook decided to become a competing registry rather than just using npm's registry and building on top of it.

[dmitriid]

> any left-pad issue has been "eliminated" with the new rules npm (the company) has enforced.

Only to resurface again: http://status.npmjs.org/incidents/dw8cr1lwxkcr

And it will, no doubt, resurface again and again and again

[davidascher]

Somewhat funny to have an FB employee complaining about overly centralized systems.

[foo101]

I used to find such comments funny until I began working for Big Name Corps myself and I realized how much one's personal philosophy could be inconsistent or sometimes even contradictory to the employer's philosophy. I make money by selling my skills to an employer despite inconsistent philosophies. I think it's like a chef that can cook meat for his/her guests although the chef has decided to refrain from consuming meat himself/herself.

[suls]

It's sort of related to the principal-agent problem ..

[davidascher]

Yup. And such a chef probably wouldn't publicly berate people for eating meat, or expect being called out if they did.

[foo101]

Yup. And I don't see anyone berating anybody in this thread. Do you?

[joepie91_]

Have a read here: https://github.com/nodejs/NG/issues/29#issuecomment-17431452... - it's a writeup that I made a while ago about the requirements for a stable (decentralized) package registry, and it addresses your question as well.

[k3n]

> So I don't think interests will ever align to create a new registry.

Possibly not soon, at least from a technical perspective, but I could definitely see a PR fiasco (security, bias, etc.) causing a loss of confidence in its stewardship.

And I don't think it'd be that big of a disruption if it were to happen; for the hypothetical case of Facebook+Yarn, they're already proxying to NPM, so they could easily continue to do so while also accepting packages that are Yarn-only.

[wycats]

I more or less agree with this.

[yemsalat]

Even if they don't get 99% of users (or any major percentage) I think it would still benefit the community to have an alternative to npm. Also Facebook has the advantage of not needing to make a business out of it (they already got a pretty good one) so in theory it could be entirely open source and free.

[yemsalat]

Just to expand on the stricter versioning rules that I mentioned, some things that in my opinion could improve the reliability of a package repository:

- strictly defined version update time intervals, e.g. you can't update your package more than once a week (or have to take some special actions for critical updates, e.g. contact support)

- "delayed" publishing, e.g. when you submit your package it will only be published in 24 hours, until then you can re-submit updates, etc.

- similar to above, but your package wont be published until it was tagged on github (or elsewhere) for a certain amount of time

- published packages can not be removed, but you can disassociate them with your account by marking them as "not maintained" and possibly assign new maintainers for it

- maybe introduce some way for developers to mark new versions as "backwards incompatible" if they do break backwards compatibility

I think there is definitely a "market" for some stricter node package repo.