I like the idea of jujutsu, but I must not operate at a scale where its "killer features" would truly shine. Git hardly ever gets in my way, I have never had to do complex octopus merges or anything like that. It's usually: feature branch, implement, merge, and occasionally fix a merge conflict. JJ seems like it's more for people that like to have tons of active branches that they are constantly switching between whereas I usually only work on 1 thing at a time. I've never thought to myself "git is so frustrating I wish there were something better" because I only use the same 5 commands over and over every day and they never get in my way. Not to mention jj has its own share of esoteric syntax with all the "@--+::" business and I'd have to re-wire my brain to remember those symbols instead of `ref~N`, etc.

Working with Martin has been a real pleasure, and we'll have some more stuff to talk about very soon!

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.

Edit: Thank you to everyone who replied. The enterprise/teams infrastructure angle makes sense.

jj is one of the few new devtools I was quite frustrated with while starting out but could see the value so stuck around and man is it so nice.

For anyone curious the big thing with jj is you can undo. Basically if you were running a rebase and bungled a commit sha or branch name, no worries undo your way out, if you forgot to push but abandoned a commit not issues undo it. Same with all jj commands.

Delta db takes this a step further and everything you edit is a change so your actual edits are also all saved.

I find non destructive-ness for as long as possible approach very nice, since there aren't as many constraints on us not being able to do it nowadays, we had limited storage and stuff in 2000s perhaps but in 2026 even with the killer SSD prices it's fairly cheap to buy more SSD, we can definitely waste 100MB per project storing redundant history we may not ever need.

Same way in photoshop non destructive editing took over, especially useful for humans, but works for AI and LLMs too, they can undo their mistakes as well.

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.

Badass!!! Congrats. I love JJ’s mental model. Its so much less opionated and lets me do what I want. Want to make 5 versions of the same commit? Easy. Need to push out a change asap without having to pre create a branch, stash your changes, yadayada. Jj just adapts.

Once you start thinking in jj it becomes frustrating having think back to use GitHub as a code repo.

So if I understand correctly: ERSC is working on an alternative backend for jj other than git (and presumably providing related infrastructure)?

No word about the future of Jujutsu, so I guess this is bad news for for jj users?

I tried jujutsu for a while and it’s nice if you’re the kind of person who lives in the commits. But it became a bit of a pain to manually move the branch name around all the time, and I spend a lot more time moving forward on a few branches than I do trying to figure out histories so I went back to git.

Thought I saw that announcement on LinkedIn a few weeks back already!

"human ↔ machine collaboration" sounds rather creepy, to be honest.

what a lovely website

I'm way more interested in knowing what technologies Steve Klabnik is eyeing and planning to get involved with next.

Congrats (or what's the right word :- )) Martin and best wishes to you and ERSC,

Looking forward to using the VCS stuff you'll create :- )

At first I thought this post about martial arts…

This website has unbearable scroll performance on mobile.

Is it the animation at the top?

Big news. Congrats.

That’s amazing news. Can you share more about your tech stack? I suppose it’s mainly built with Rust?

Is this new? The date says July 8, 2026.

Can someone at ERSC please fix the issue preventing back/forward scroll gestures from working on the site?

What is ERSC?

This looks like excellent news.

What a pivot, from manga to software

am I in some alternate timeline where ISVs are able to make a profit selling version control systems?

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.

(off topic) why the headache-inducing animated background? An annoyance for all, and an actual accessibility issue for some.

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