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The creator of Jujutsu has joined ERSC

https://ersc.io/blog/martin-joins-ersc
43•steveklabnik•1h ago

Comments

matthewbauer•41m ago
Is this new? The date says July 8, 2026.
steveklabnik•37m ago
Fixing, thank you!

(Martin joined back then, but we are posting about it today, so we should have the post date as today)

valvix•40m ago
What a pivot, from manga to software
steveklabnik•40m ago
Working with Martin has been a real pleasure, and we'll have some more stuff to talk about very soon!
opem•30m ago
excited for what you guys would be coming up with ;)

btw, did Martin leave google?

steveklabnik•27m ago
Thanks!

Martin left Google for this, yes.

tensegrist•38m ago
what a lovely website
steveklabnik•36m ago
Thank you!

We liked our old look, but one funny thing about how things are going in the world: our old color scheme was too close to what happens when you ask Claude to generate a site, and so even though we paid a human to build it, we didn't want to communicate slop, especially because that's not what we did!

Nick Noble is our designer, he put in a bunch of work on this, and I really like it too.

poly2it•23m ago
I love how little latency there is on your website. I'm often thrown off by websites freezing on navigation, something we euphemistically call "loading". I feel we should have moved beyond that in the year of 2026. Your website really respects the user in this regard. Aesthetics are splendid as well.
nickisnoble•26m ago
Thanks!

There will be a lot more of it soon :D

RobotToaster•31m ago
Jujutsu is apparently the name of a version control system, for anyone else confused how the creator of a thousand year old martial art had joined them.
infogulch•31m ago
What is ERSC?
steveklabnik•11m ago
I wrote a bit about this here: https://news.ycombinator.com/item?id=49526190

I wrote about why I joined the company back when I did previously here: https://steveklabnik.com/writing/i-see-a-future-in-jj/

In short: we are building a next generation source control system for the enterprise.

fallat•30m ago
Someone will have to explain the value proposition to me...

We have git.

jujutsu works with git.

git can do everything jujutsu can do (otherwise, jujutsu couldn't work with git).

Thus, jujutsu is a UX / new steering wheel.

ERSC is trying to be a GitHub competitor with what surplus value?

Don't get me wrong, GitHub has a slew of its own problems, but I have not seen any commentary on how ERSC addresses any of the downfalls GitHub has too. We're jumping from one frying pan into another, currently-cooler one?

What about SourceHut? Codeberg? They could offer the same steering wheels.

rirze•22m ago
I might be mistaken, but I always figured the end goal for jujitsu was to use its own backend. Supporting git-colocation seems like a compatibility case to bring users over.

If I had to guess, then I would say ERSC is trying to build a `jj` forge based on this new hire and that would be amazing imo.

steveklabnik•13m ago
We'll be saying more about this very soon, but the short version is this: we are not building a GitHub competitor in the way that SourceHut or Codeberg are. We are building infrastructure for enterprises, not a social coding site.

While jj works with git, it doesn't have to. jj has the ability to work with many backends. Git is the popular one in the open source world, but that doesn't mean that other ones are not possible. And that's the core tech we have built.

With the rise of agents, more and more companies are running into the limits of what Git can do. It was never designed for large monorepos, and so there are performance issues, but also features that it's missing, that are important once you start trying to scale things up to an entire organization. Companies like Meta and Google ran into these things well before the present moment, but you don't have to be a FAANG these days to be running into this sort of stuff.

We also understand that incremental adoption is really important, especially for something as fundamental as source control. So our tech also has a git ingress/egress that will work with the core functionality, but more advanced things that git simply can't do will end up requiring using a non-git protocol. jj is the bridge between those two worlds.

I hope that makes sense! We have been in psudeo-stealth for a while now, this is the start of us coming out of our shell a bit and actually talking about what we're doing.

jph•14m ago
Jujutsu is a better smarter git. It's a great convergence of better UX, plus more expressive, plus easier to use.

If you haven't tried jj yet, take it for a spin and see how you like it.

medicalux•11m ago
What projects have you used Jujutsu with? Also, why was another name not chosen?

Rust developer praising a Rust project, news at 11.

drcongo•14m ago
This looks like excellent news.
fenugurod•6m ago
That’s amazing news. Can you share more about your tech stack? I suppose it’s mainly built with Rust?
ksymph•5m ago
[delayed]
opem•6m ago
so most of my guesses about ersc are true, except it is only for enterprise? or do individuals also get access eventually?
medicalux•6m ago
How will ERSC make money from this? And what will your moat be? Are you afraid that other companies might beat you to the punch?
opem•11m ago
this is a very legit question. my few cents:

I don't know how experienced you are with jj, but one thing I can say for sure is jj offers significant ux improvements over git and they plan to have a backend eventually. we might see the first implementation from ersc. and from their website I see they are already taking things like agents into account from day one. so we might be in the verge of getting something that scales better with modern day workload?

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