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Anthropic Cowork feature creates 10GB VM bundle on macOS without warning

https://github.com/anthropics/claude-code/issues/22543
199•mystcb•2h ago•86 comments

Motorola announces a partnership with GrapheneOS Foundation

https://motorolanews.com/motorola-three-new-b2b-solutions-at-mwc-2026/
1366•km•9h ago•461 comments

Judge finalizes order for Greenpeace to pay $345M in ND oil pipeline case

https://northdakotamonitor.com/2026/02/27/judge-finalizes-order-for-greenpeace-to-pay-345-million...
86•gmays•2h ago•49 comments

/e/OS is a complete "deGoogled", mobile ecosystem

https://e.foundation/e-os/
468•doener•7h ago•262 comments

Ask HN: Who is hiring? (March 2026)

20•whoishiring•37m ago•31 comments

First-ever in-utero stem cell therapy for fetal spina bifida repair is safe

https://health.ucdavis.edu/news/headlines/first-ever-in-utero-stem-cell-therapy-for-fetal-spina-b...
42•gmays•1h ago•4 comments

Notes on Lagrange Interpolating Polynomials

https://eli.thegreenplace.net/2026/notes-on-lagrange-interpolating-polynomials/
6•ibobev•36m ago•2 comments

Use the Mikado Method to do safe changes in a complex codebase

https://understandlegacycode.com/blog/a-process-to-do-safe-changes-in-a-complex-codebase/
41•foenix•4d ago•16 comments

How to talk to anyone and why you should

https://www.theguardian.com/lifeandstyle/2026/feb/24/stranger-secret-how-to-talk-to-anyone-why-yo...
326•Looky1173•9h ago•420 comments

An Interesting Find: STM32 RDP1 Decryptor

https://carlossless.io/stm32-rdp1-decryptor/
45•carlossless•2h ago•8 comments

Inside the M4 Apple Neural Engine, Part 1: Reverse Engineering

https://maderix.substack.com/p/inside-the-m4-apple-neural-engine
97•zdw•23h ago•30 comments

Parallel coding agents with tmux and Markdown specs

https://schipper.ai/posts/parallel-coding-agents/
12•schipperai•2h ago•0 comments

Why Objective-C

https://inessential.com/2026/02/27/why-objective-c.html
35•ingve•2d ago•19 comments

AMD Am386 released March 2, 1991

https://dfarq.homeip.net/amd-am386-released-march-2-1991/
54•jnord•3h ago•9 comments

OpenClaw Surpasses React to Become the Most-Starred Software Project on GitHub

https://www.star-history.com/blog/openclaw-surpasses-react-most-starred-software
164•whit537•2h ago•157 comments

Microsoft bans the word "Microslop" on its Discord, then locks the server

https://www.windowslatest.com/2026/03/02/microsoft-gets-tired-of-microslop-bans-the-word-on-its-d...
632•robtherobber•6h ago•243 comments

Making Video Games in 2025 (without an engine)

https://www.noelberry.ca/posts/making_games_in_2025/
303•alvivar•3d ago•139 comments

If AI writes code, should the session be part of the commit?

https://github.com/mandel-macaque/memento
403•mandel_x•16h ago•348 comments

Show HN: Omni – Open-source workplace search and chat, built on Postgres

https://github.com/getomnico/omni
108•prvnsmpth•7h ago•31 comments

Apple introduces the new iPad Air, powered by M4

https://www.apple.com/newsroom/2026/03/apple-introduces-the-new-ipad-air-powered-by-m4/
100•Garbage•2h ago•106 comments

Jolla phone – a full-stack European alternative

https://commerce.jolla.com/products/jolla-phone-sept-26
347•spinningslate•6h ago•143 comments

Mondrian Entered the Public Domain. The Estate Disagrees

https://copyrightlately.com/mondrian-public-domain-controversy/
121•Tomte•3d ago•59 comments

U.S. science agency moves to restrict foreign scientists from its labs

https://www.science.org/content/article/nist-moves-restrict-foreign-scientists-its-labs
271•JeanKage•7h ago•222 comments

Show HN: Web Audio Studio – A Visual Debugger for Web Audio API Graphs

https://webaudio.studio/
33•alexgriss•4h ago•2 comments

Neocaml – Rubocop Creator's New OCaml Mode for Emacs

https://github.com/bbatsov/neocaml
65•TheWiggles•2d ago•10 comments

A bit of fluid mechanics from scratch not from scratch

https://tsvibt.blogspot.com/2026/02/a-bit-of-fluid-mechanics-from-scratch.html
6•surprisetalk•1h ago•0 comments

Plastic is made from milk and it vanishes in 13 weeks

https://www.sciencedaily.com/releases/2026/02/260227071922.htm
37•JeanKage•2h ago•27 comments

Go-Native Durable Execution

https://www.dbos.dev/blog/how-we-built-golang-native-durable-execution
43•hmaxdml•4d ago•11 comments

Computer-generated dream world: Virtual reality for a 286 processor

https://deadlime.hu/en/2026/02/22/computer-generated-dream-world/
134•MBCook•12h ago•25 comments

An interactive intro to Elliptic Curve Cryptography

https://growingswe.com/blog/elliptic-curve-cryptography
102•vismit2000•10h ago•17 comments
Open in hackernews

Anthropic Cowork feature creates 10GB VM bundle on macOS without warning

https://github.com/anthropics/claude-code/issues/22543
191•mystcb•2h ago

Comments

bachittle•1h ago
Yup it uses Apple Virtualization framework for virtualization. It makes it so I can't use the Claude Cowork within my VMs and that's when I found out it was running a VM, because it caused a nested VM error. All it does is limit functionality, add extra space and cause lag. A better sandbox environment would be Apple seatbelt, which is what OpenAI uses, but even that isn't perfect: https://news.ycombinator.com/item?id=44283454
j16sdiz•1h ago
seatbelt is largely undocumented.
pluc•48m ago
just ask AI to document it
ramoz•38m ago
Not sure why you're getting down voted. This is totally reasonable.
bachittle•15m ago
OpenAI Codex CLI was able to use it effectively, so at least AI knows how to use it. Still, its deprecated and not maintained, Apple needs to make something new soon.
blitzar•1h ago
The vibe coding giveth and the the vibe coding taketh away, blessed be the vibe coding
MarleTangible•1h ago
It's incredible how many applications abuse disk access.

In a similar fashion, Apple Podcasts app decided to download 120GB of podcasts for random reason and never deleted them. It even showed up as "System Data" and made me look for external drive solutions.

chuckadams•1h ago
Someone actually still uses the built-in podcasts app?
Angostura•1h ago
It's absolutely fine, from what I can tell
mister_mort•1h ago
AFAIK the native Podcast app for iPhone is the only way to make PC-phone podcast file syncing work. This stops you downloading the same podcast file twice, once on your PC and once on your phone.
hidelooktropic•1h ago
Not sure what you have against it. Works great for me. No subscription required. And if I do want to pay for ad free shows and support creators it's easy to do so.

Use whatever you like but I don't think Podcast app users are rare by any stretch of the imagination.

dewey•56m ago
It probably has more active users than all third party podcast apps on all mobile platforms combined. The power of defaults.
rafram•48m ago
It's generally a good app. People in the tech community like Overcast, but I've always found its UI completely illogical. Apple Podcasts is organized like I'd expect a podcast app to be.
kace91•1h ago
The system data issue on macOS is awful.

I use my MacBook for a mix of dev work and music production and between docker, music libraries, update caches and the like it’s not weird for me to have to go for a fresh install once every year or two.

Once that gets filled up, it’s pretty much impossible to understand where the giant block of memory is.

John23832•1h ago
Seconding.

I should not have to hack through /Libary files to regain data on a TB drive because Osx wanted to put 200gbs of crap there in an opaque manner and not give the user ANY direct way to regain their space.

dotxlem•1h ago
I had the same problem and had some luck cleaning things up by enabling "calculate all sizes" in Finder, which will show you the total directory size, and makes it a bit easier to look for where the big stuff is hiding. You'll also want to make sure to look through hidden directories like ~/Library; I found a bunch of Docker-related stuff in there which turned out to be where a lot of my disk space went.

You can enable "calculate all sizes" in Finder with Cmd+J. I think it only works in list view however.

robin_reala•55m ago
I’d recommend GrandPerspective:[1] it’s really good at displaying this sort of thing, has been around for over two decades, and the developer has managed to keep it to <5MB which is perfect when you’re running very low on space.

[1] https://grandperspectiv.sourceforge.net/

braingravy•17m ago
I use GP, would recommend as well; it generates great color codes tree maps of your storage. Once you get used to navigating it that way, you won’t go back.
1e1a•48m ago
You can also just use du -hs, eg. to show the size of all subdirectories under ~/Library/Caches/ do:

  du -hs ~/Library/Caches/*
prmph•42m ago
A ton of thanks. This "hack" allowed to finally see some stuff that was eating up a lot of my space and was showing up as "System Data". It turned out the Podman virtual machine on my MacBook had eaten up more 100GB!
dewey•34m ago
Something like https://dev.yorhel.nl/ncdu with ("brew install ncdu") is great if you are okay with the command line. It's very annoying to drill down in the Finder especially if it's hidden directories.
mrbombastic•8m ago
in a similar vein if you are looking for a nice GUI, daisydisk is great: https://daisydiskapp.com one time $10 payment
vachina•1h ago
Because Apple differentiates their products by their storage sizes, they also sell iCloud subscription. There is zero (in fact negative) incentive to respect your storage space.
prmph•1h ago
Yep, it is an awful situation. I'm increasingly becoming frustrated with how Apple keeps disrespecting users.

I downloaded several MacOS installers, not for the MacBook I use, but intending to use them to create a partitioned USB installer (they were for macOS versions that I could clearly not even use for my current MacBook). Then, after creating the USB, since I was short of space, I deleted the installers, including from the trash.

Weirdly, I did not reclaim any space; I wondered why. After scratching my head for a while, I asked an LLM, which directed me to check the system snapshots. I had previously disabled time machine backup and snapshots, and yet I saw these huge system snapshots containing the files I had deleted, and kicker was, there was no way to delete them!

Again I scratched my head for a while for a solution other than wiping the MacBook and re-installing MacOS, and then I had the idea to just restart. Lo and behold, the snapshots were gone after restarting. I was relieved, but also pretty pissed off at Apple.

pdntspa•35m ago
Equally egregious are applications that insist on using the primary disk to cache model data/sample data/whatever
zbentley•26m ago
What should they do instead?

Like, assuming they need the data and it's inconveniently large to fit into RAM, where/how should they store and access it if not the primary disk?

zarzavat•33m ago
The trick is to reboot into recovery partition, disable SIP, then run OmniDiskSweeper as root (as in `sudo /Applications/OmniDiskSweeper.app/Contents/MacOS/OmniDiskSweeper`). Then you can find all kinds of caches that are otherwise hidden by SIP.
piyh•22m ago
Even worse on ipad. My wife is an artist and 100gigs of "system data" is completely inscrutable and there's zero ways to fix it besides a full wipe.
mschuster91•18m ago
> Once that gets filled up, it’s pretty much impossible to understand where the giant block of memory is.

Your friend is called ncdu and can be used as follows:

    sudo ncdu -x -e --exclude Volumes /System/Volumes/Data/
The exclude for Volumes is necessary because otherwise ncdu ends up in an infinite loop - "/Volumes/Macintosh\ HD/Volumes/" can be repeated ad nauseam and ncdu's -x flag doesn't catch that for whatever reason.
drumttocs8•14m ago
My 256gb Mac Mini currently has 65gb of "System Data" and 40gb of "MacOS"
mbowcut2•13m ago
Gotta hit that docker system prune -a
delaminator•57m ago
My WinSxS folder is 17Gb
AndroTux•46m ago
This one drives me nuts. Not just on Mac, also on iPhone/iPad. It's 2026, and 5G is the killer feature advertised everywhere. There's no reason to default to downloading gigabytes of audio files if they could be streamed with no issue whatsoever.
frereubu•9m ago
On 5G, it depends. There are still plenty of people around the world who don't have unlimited data plans.
coldtrait•45m ago
This seems to be a recent popular tool to handle this - https://github.com/tw93/Mole

I also prompt warp/gemini cli to identify unnecessary cache and similar data and delete them

dewey•44m ago
Don't run "du -h ~/Library/Messages" then, I've mentioned that many times before and it's crazy to me to think that Apple is just using up 100GB on my machine, just because I enable iMessage syncing and don't want to delete old conversations.

One would think that's a extremely common use case and it will only grow the more years iMessage exists. Just offload them to the cloud, charge me for it if you want but every other free message service that exists has no problem doing that.

bensyverson•41m ago
Agreed, it should work like the iCloud Photos library; cache locally, but pull from the cloud when necessary.
bee_rider•19m ago
Offloading to the cloud and charging the user seems like a bigger breach of expectations than the hard drive space.
dewey•15m ago
If you have a choice there's nothing wrong with it. It's the same way that iCloud Photos already work. You can either disable iCloud and have everything locally in your Photos app or let it dynamically offload to iCloud (If you have enough cloud space).

I'd rather pay for cloud space that I'm already using anyway than having it take up my limited space on my laptop that I can't extend.

dawnerd•18m ago
Same with photos. You can enable the option to offload but there’s no way to control how much is used locally. I don’t know why messages does that either. Also no easy way to remove the hundreds of thousands of photos in messages across all chats.
jacquesm•12m ago
> Apple Podcasts app decided to download 120GB

That's one way to drive sales for higher priced SSDs in Apple products. I'm pretty sure that that sort of move shows up as a real blip on Apple's books.

tbrownaw•1h ago
Sure it uses a few GB just like everything else these days, but some of the comments also mention it being slow?
Aurornis•1h ago
The GitHub issue is AI generated. In my experience triaging these in other projects, you can’t really trust anything in them without verifying. The users will make claims and then the AI will embellish to make them sound more important and accurate.
dylan604•1h ago
> AI will embellish to make them sound more important and accurate.

Did you mean than accurate rather than and accurate? Having a more accurate issue description only sounds like a good thing to me

Filligree•1h ago
To make them sound more accurate.
seanhunter•1h ago
I read that as "make them sound more important and accurate than they actually are".
monsieurbanana•1h ago
Making them look more accurate is not the same as being more accurate, and llms are pretty good at the former.

Imagine a user had a vague idea or something that is broken, then the LLM will choose to interpret his comment for what it thinks is the most likely actual underneath problem, without actually checking anything.

kace91•1h ago
“Seem important and accurate” is correct. It doesn’t imply actual accuracy, the llm will just use figures that resemble an actual calculation, hiding they are wild guesses.

I’ve run into the issue trying to use Claude to instrument and analyze some code for performance. It would make claims like “around 500mb ram are being used in this allocation” without evidence.

Aurornis•1h ago
This GitHub issue itself is clearly AI slop. If you’ve been dealing with GitHub issues in the past months it will be obvious, but it’s confirmed at the end:

> Filed via Claude Code

I assume part of it is true, but determining which part is true is the hard part. I’ve lost a lot of time chasing AI-written bug reports that were actually something else wrong with the user’s computer. I’m assuming the claims of “75% faster” and other numbers are just AI junk, but at least someone could verify if the 10GB VM exists.

chuckadams•1h ago
I wouldn't think it's inappropriate for an AI agent to file an issue against another AI agent, which itself is largely written by AI.
fragmede•1h ago
What's funny is interacting with it in claude code. Claude-desktop-cowork can't do anything about the VM. It creates this 10 GiB VM, but the disk image starts off with something like 6-7 GiB full already, which means any of the cowork stuff you try to do has to fit into the remaining couple of gigs. It's possible to fill it up, and then claude cowork stops working. Because the disk is full. Claude cowork isn't able to fix this problem. It can't even run basic shell commands in the VM, and Opus4.6 is able to tell the user that, but isn't smart enough/empowered to do anything about it.

So contrary to the github issue, my problem is that it's not enough space. So the fix is to navigate to ~/Library/Application\ Support/Claude/vm_bundles, and then ask Claude Code to upsize the disk to a sparse 60 GiB file, giving cowork much more space to work in while not immediately taking up 60 GiB.

Bigger picture, what this teaches me though, is that my knowledge is still useful in guiding the AI to be able to do things, so I'm not obsolete yet!

pixl97•1h ago
So it's using it's binary disk/image as the cache/work disk also?

Yea, that's a receipt for problems.

quanwinn•1h ago
I imagined someone at Anthropic prompted "improve app performance", and this was the result.
andresquez•1h ago
Way slower, but way better than chat mode. Nothing beats Claude Code CLI imo.
informal007•1h ago
I believe that employees in Anthropocs use CC to develop CC now.

AI really give much user ability to develop a completed product, but the quality is decreasing. Professional developers will be in demand when the products/features become popular.

First batch of users of new products need to take more responsibility to test the product like a rats in lab

ramoz•36m ago
Actually, this I'm not so sure.

https://x.com/backnotprop/status/2028293637373841759

This was tweeted last night as a meme and hit the front page before it was flagged, but I'm actually serious and in favor of slop. VHS over Betamax, honestly, what's best and most convenient for us? We're going to learn this a lot with AI.

game_the0ry•1h ago
Yeah, that's why I do not install these tools on my personal devices anymore and instead play with them on a VPS.

Try this if you have claude code -- ls -a your home dir and see all the garbage claude creates.

atonse•1h ago
I literally spent the last 30 mins with DaisyDisk cleaning up stuff in my laptop, I feel HN is reading my mind :)

I also noticed this 10GB VM from CoWork. And was also surprised at just how much space various things seem to use for no particular reason. There doesn't seem to be any sort of cleanup process in most apps that actually slims down their storage, judging by all the cruft.

Even Xcode. The command line tools installs and keeps around SDKs for a bunch of different OS's, even though I haven't launched Xcode in months. Or it keeps a copy of the iOS simulator even though I haven't launched one in over a year.

hulitu•57m ago
Is there no crond and find on MacOSX ?
cmckn•46m ago
> Xcode…keeps around SDKs for a bunch of different OS's

Not a new problem, unfortunately. DevCleaner is commonly used to keep it under control: https://github.com/vashpan/xcode-dev-cleaner

puppymaster•1h ago
macbook pro m4 bought last year. worked on so many codes and projects. never hot after closing lid. installed electron claude. closed lid and went to sleep and woke up to macbook that has been hot all night. uninstall claude. problem went away.

i kept telling myself this BUT NEVER ELECTRON AGAIN.

hulitu•56m ago
> woke up to macbook that has been hot all night

this is usual reason for divorce /s

DauntingPear7•42m ago
It’s not electron
crumpled•49m ago
The software seems to get into more and more and communicate about what it's doing less and less. That's the crux.

Pondering... Noodling... Some other nonsense...

mixdup•46m ago
All code in Claude™ is written by Claude™
jFriedensreich•45m ago
Its just another example and just a detail in the broader story: We cannot trust any model provider with any tooling or other non model layer on our machines or our servers. No browsers, no cli, no apps no whatever. There may not be alternatives to frontier models yet, but everything else we need to own as true open source trustable layer that works in our interest. This is the battle we can win.
prmph•36m ago
Why don't people form cooperatives, contribute to buy serious hardware and colocate them in local data centers, and run good local models like GLM on them to share?
jug•44m ago
Also apparently eating 2 GB RAM or so to run an entire virtual machine even if you've disabled Cowork. Not sure which of this is worse. Absolute garbage.
kordlessagain•40m ago
The amount of bad things this companies software does is staggering. The models are amazing, the code sucks.
AlexeyBrin•31m ago
Their code is written by their amazing models (this is what they claim anyway).
Terretta•30m ago
Arguably, even without LLM, you too should be dev-ing inside a VM...

https://developer.hashicorp.com/vagrant is still a thing.

The market for Cowork is normals, getting to tap into a executive assistant who can code. Pros are running their consumer "claws" on a separate Mac Mini. Normals aren't going to do that, and offices aren't going to provision two machines to everyone.

The VM is an obvious answer for this early stage of scaled-up research into collaborative computing.

messh•22m ago
Yeah, very easy to do today. May VPS providers help with this, checkout:

https://exe.dev

https://sprites.dev

https://shellbox.dev

TheRealPomax•24m ago
labelled "high priority" a month ago. No actual activity by Anthropic despite it being their repo. I'm starting to get the feeling they're not actually very good at this?
fooker•20m ago
That seems somewhat reasonable.

Storage should be cheaper, complain about Apple making you pay a premium.

pama•18m ago
Aren't most these people recommending random tools in the github chat for this entry just attempting to exploit naive users? Why would anyone in this day and age follow advice of new users to download new repos or click at random websites when they already attempt to use claude code or cowork?
felixrieseberg•11m ago
Hi, Felix from Anthropic here. I work on Claude Cowork and Claude Code.

Claude Cowork uses the Claude Code agent harness running inside a Linux VM. This buys us three things we like a lot:

(1) A computer for Claude to write software in, because so many user problems can be solved really well by first writing custom-tailored scripts against whatever task you throw at it. We'd like that computer to not be _your_ computer so that Claude is free to configure it in the moment.

(2) Hard guarantees at the boundary: Other sandboxing solutions exist, but for a few reasons, none of them satisfy as much and allow us to make similarly sound guarantees about what Claude will be able to do and not to.

(3) As a product of 1+2, more safety for non-technical users. If you're reading this, you're probably equipped to evaluate whether or not a particular script or command is safe to run - but most humans aren't, and even the ones who are so often experience "approval fatigue". Not having to ask for approval is valuable.

It's a real trade-off though and I'm thankful for any feedback, including this one. We're reading all the comments and have some ideas on how to maybe make this better - for people who don't want to use Cowork at all, who don't want it inside a VM, or who just want a little bit more control. Thank you!

xvector•6m ago
Cowork has been an insane productivity boost, it is actually amazing. Thank you!
cogman10•6m ago
Ok, so a lot of this boils down to the fact that this sort of software really wants to be running on linux. For both windows and mac, the only way to (really) do that is creating a VM.

It seems to me that the main issue here is painful disconnects between the VM and the host system. The kernel in the VM wants to manage memory and disk usage and that management ultimately means the host needs to grant the guest OS large blocks of disk and memory.

Is anyone thinking about or working on narrowing that requirement? Like, I may want the 99% of what a VM does, but I really want my host system to ultimately manage both memory and disk. I'd love it if in the linux VM I had a bridge for file IO which interacted directly with the host file system and a bridge in the memory management system which ultimately called the host system's memory allocation API directly and disabled the kernels memory management system.

containers and cgroups are basically how linux does this. But that's a pretty big surface area that I doubt any non-linux system could adopt.