Oak is a version control system I've been working on designed for agents (https://oak.space). It improves the speed and context your agents need when working on serious projects. With virtual mounts, agents locally and in the cloud no longer need a full copy of a repo to get working. You can work on many tasks in parallel without needing to download everything or fight worktrees. Version control shouldn't waste you or your agents time. It should be fast, creative and fun to make things with agents.
Oak is still early in development. There's no Windows build and missing plenty of features (no CI, no issues, no comments). We still use GitHub Actions for building Oak now, but we've been fully bootstrapped on Oak with no Git backup for several months: https://oak.space/oak/oak.
Blog post: https://oak.space/blog#git-is-forever
Docs: https://oak.space/docs
Discussion (67 Comments)Read Original on HackerNews
There’s some mention about performance, which is great, but the performance of git isn’t a bottleneck for agents.
There’s some mention about token use being reduced, which is great, but how have they achieved that vs gits porcelain modes. And why does token count require a whole new VCS, and thus incompatibilities with all the established git ecosystems?
I really want to find reasons to like this but it’s probably some of the worst product marketing I’ve seen. And something this significant really does need to sell itself hard if you’re going to get enough people in a project team to agree to switch away from git
Eh, it depends on the workflow. Especially if you have certain stack based workflows. Worktrees are kinda half solution here but depending on the repo type and if you are dealing with LFS or sparse checkouts, I've had agents struggle really hard to work through a stack or rebase things without a lot of thrashing or being IO bound by just stumbling into operations in a boneheaded way. Now I have AGENTS.md/skills/hooks gaurdrails littered about to try and work around things.
Now, every brain fart is published as a finished product no one wanted.
The tool is called gitnow. it is honestly quite simple, just create a project, add the repositories you want and get to building. I've found having another claude chat or whatever use the tool to great success coupled with zellij, but could also be zed, tmux or whatever.
Secondly it also pretty much solves the problem of the agent dumping memory files everywhere, they now basically have a scratch space that is theirs, where they can keep their tasks, and just update the repositories as needed.
Use gn the shell after eval if you use it, it will actually invoke cd, instead of creating a subshell.
https://github.com/kjuulh/gitnow
[1] https://fossil-scm.org
And there we go.
From hacker news guidelines https://news.ycombinator.com/newsguidelines.html
My initial reaction is if this is not something than could be built on top of Git, rather than replacing it. Describe the data model - what is a "commit", what is a "branch" ..., if the same as git, then why not reuse.
(The submitted title was "Git is forever. I'm building Oak anyways." and the submitted URL was https://oak.space/blog.)
[0]: https://i.sstatic.net/4vbd9.png
It's absolutely great for keeping a bunch of exploratory changes alive, quick prototyping, etc. as I tend to do with basically every source I have on my machine. I don't have to think at all about the stuff I hate about git (babying the index, being careful to amend and etc. right the first time because undos are annoying, etc.)
Does not support LFS or submodules though.
[0]: https://github.com/LoganDark/get-shit-done/tree/jj-vcs
https://zed.dev/deltadb
Many things were forever until they suddenly died, but I think this is especially true for git.
I'm not saying this as a git hater, quite to the contrary. I think git is great. I also think git is an ill-fit for the majority of modern commercial software projects and there will be a breaking point where companies realize that and move on.
There's plenty of workarounds too, but that's what they are. Workarounds.
2. rebase based merge strategies - our team has 50+ devs across three continents merging into monorepo with teams maintaining submodules. By the time your merge request passes CI it has to be rebased. People are literally holding off on reviewing merge requests to make sure their own changes get in first
3. permissions for subdirectories/assets. some necessary code/modules are highly regulated and company secrets. Git cant lock certain directories based on who clones the repo
4. Agentic coding - if you don't commit then your changeset after each request is lost. JJ solves this. You could just say to commit after every request then squash the commits. But, I think this is an ergonomic argument
5. Maybe it's just my experience, but git-lfs is pretty annoying to manage on large teams and changing files to/from lfs. often easier to just delete and clone again
6. git blame on non-meaninful changes. Running a code linter to add/remove whitespace makes git blame return who ran the linter rather than who wrote the code
7. self-reported identity. every time we get new laptops (because they buy the cheapest POS) devs forget what they set for 'username'. so it ends up being 3-4 different identities with the same email
Those are just my complaints lately
2. That has the smells of a wrong code architecture. If change request leads to unneeded code conflicts, you need to rework your code architecture.
3. That’s valid, but why not create libraries out of those modules?
4. Valid. But I think the issue is on the agent side. Git has already all the features to make those happen, it’s the agent that is not integrated with git.
5…
6. Either than sweeping changes (adding a formatter, changing config,…) There’s no need for formatting changes to be its own commit in the main repo. I usually add a check to prevent inconsistent formatting.
7. The git history has the previous username and email recorded alongside each commit.
(Compare to Mercurial, Fossil or Git; those systems have consistent and usable interfaces. There's much less demand for wrappers or LLM tooling since they're easy to use already.)
2. Preservation of history. Two common commands - git rebate and git push -f - cause commit history to be lost, sometimes permanently. ("Just be careful" and "Just don't use those commands" are useful pieces of advice for an individual, and virtually impossible to enforce over groups.)
3. Conflict resolution. Git forces the user to resolve conflicts ASAP so we often lose information about A. What the conflict exactly was, and B. How the individual resolved it. Most VCS have this issue; JJ allows you to commit the conflict and solve it in a separate commit, which is nice.
[1] https://git-scm.com/book/en/v2/Git-and-Other-Systems-Git-as-...
If I split a file in two I still want to be able to see blame correctly for the author of the function, not one file as freshly created and the other with a bunch of deletes. I wish commits could be folded into larger commits so that you can still capture the individual changes but also not see them by default when looking at the history of a file.
Just a more human centric perspective on change history where it captures the way we talk and think about changes.
Fossil merges do this. More people need to use Fossil; it's got a ton of great ideas.
"If I split a file in two I still want to be able to see blame correctly for the author of the function, not one file as freshly created and the other with a bunch of deletes."
Now this is a good idea that I've never seen in a VCS.
There's a reason no one has done that, the VCS would have to have a semantic understanding of what it's tracking. I'm sure that's possible, but I think would see extremely limited success. Honestly, it may have even been done for proprietary languages and VCS systems that have since faded into obscurity.
I'd settle for searching the git history for a particular regex/string and then running a blame on that.
`git split`
Something that I enjoy with jujutsu is that the semantics is the tool itself. ONCE you do that, the rest become easier!
2) language sensitive version control seems like the next thing. We need like an LSP for VCSes.
Awesome. How does one decide which files should be stored externally, and manage that? And where is that decision stored?
> You can work on many tasks in parallel without needing to download everything or fight worktrees.
What does "download everything" even mean? Why would you "fight worktrees"?
* The core idea sounds interesting. Make it the first paragraph, not paragraph seven.
* Spend more words describing what makes Oak different.
* "I built a version control system in my free-time called Jam". You probably didn't name your free time. "I built a version control system, called Jam, in my free time."
The only thing to go on is this single sentence: "With virtual mounts, agents locally and in the cloud no longer need a full copy of a repo to get working."
> For the first 100 users that subscribe to a paid plan I will send you a personalized e-ink display
I don't understand anyone who feels incentivized by this. Brogrammer 2.0 is weird.
I hope this is ok! If you prefer different text at the top, let us know at hn@ycombinator.com.
I found the section titled “Local feature branches. Server main. One squash.” most interesting.