frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Open in hackernews

Hyperspace

https://hypercritical.co/hyperspace/
30•swyx•2h ago

Comments

markn951•1h ago
I think the record for most space saved by this utility in a single run is in the hundreds of TBs now. I’ll see if I can find the toot.

Edit: maybe a bit hyperbolic of me, looks like it was 3.94TB https://mastodon.social/@WTL/116710030179809319

mrtesthah•1h ago
How does it compare to https://diskdedupe.com/?
steve_taylor•1h ago
How does this compare to diskDedupe, which has been around longer and is much cheaper?
nodesocket•1h ago
Seems useful for s3 buckets. I suppose a script that watches for new objects, calculates its sha256 and stores that in a DB, then checks for duplicate hashes would be a fairly trivial task. Though s3 doesn’t support symbolic links so accounting would need to be handled by server side code.
dmarinus•6m ago
I don't think it's very useful but there's already a checksum in the meta data of an S3 object: https://docs.aws.amazon.com/AmazonS3/latest/API/API_Object.h...

It might be better to keep an index of paths to checksums and use the checksum as object key in S3.

I'm not sure what you like to achieve but if you use restic with S3 as a backend you can achieve much better deduplicate and compression.

oersted•58m ago
It's quite the dark-pattern to allow you to download it and scan for free, without any clear indication that it's a paid product, and then ambush you with a purchase dangling the space savings in front of your face.
guywithabike•45m ago
If anything, it's the opposite of a dark pattern: you get to see if it'll provide any value for you without paying a dime. It's a far better proposition than paying up only to find out that it won't free up any space for you. The linked site is very clear about how the pricing works.
sssilver•17m ago
This would only be true if it didn't take your time before asking you to pay to not waste the time that it took.
alsetmusic•16m ago
The app store identifies apps with paid features. You shouldn't be entirely surprised.
Analemma_•13m ago
You are complaining that it can’t instantaneously perform a complete scan of your disk, and then attributing malicious intent to this lack of magic instant scanning technology.

What are we even doing here. The knee-jerk conspiratorial foolishness on this site is completely off the deep end.

greenpizza13•15m ago
starkshift•57m ago
Nice I was just thinking about this the other day! Given the memory supply issue today, I wonder how much of data in our data centers worldwide is essentially just copied data? I have a feeling that there is a ton of redundancy, much of it absolutely necessary, but much of it essentially not at all, and howmuc memory we can reclaim by culling copies
system2•33m ago
Are you deleting the others and creating a symlink to the original? How does this work exactly? I didn't get it from the FAQ section.

Does this mean that if the original is gone, all the file links will not be found?

ianmurrays•27m ago
Here’s a lengthier explanation [1] but it’s basically an APFS feature.

[1]: https://hypercritical.co/hyperspace/#how-it-works

system2•21m ago
Thank you. This makes sense now.
_diyar•22m ago
No, this uses a feature of the macOS file system. From the FAQ:

> Q: Are clone files the same thing as symbolic links or hard links?

> A: No. Symbolic links (“symlinks”) and hard links are ways to make two entries in the file system that share the same data. This might sound like the same thing as the space-saving clones used by Hyperspace, but there’s one important difference. With symlinks and hard links, a change to one of the files affects all the files.

> The space-saving clones made by Hyperspace are different. Changes to one clone file do not affect other files. Cloned files should look and behave exactly the same as they did before they were converted into clones.

a_t48•26m ago
This uses reflinks, right? I've been experimenting with using reflinks under Linux to speed up layer extraction for Docker, it's great.
It's a couple Q's in on the page:

Q: How do I pay for Hyperspace? Hyperspace is a free download in the Mac App Store. Once downloaded, it’s free to scan an unlimited number of files. Scanning will let you know how much space is eligible to be reclaimed.

If you decide you want to reclaim that space, you will need to pay for Hyperspace using the purchase button that appears after a successful scan or by selecting “Purchase Hyperspace…” from the “Hyperspace” menu in the menu bar.

H3-metal – Native MiniMax-H3 inference for Apple Silicon

https://github.com/antirez/h3.c
123•swyx•3h ago•14 comments

Chicken Scheme 6.0

https://code.call-cc.org/releases/6.0.0/NEWS
109•eatonphil•4h ago•13 comments

Show HN: Scroll through all 43252003274489856000 Rubik's Cube states

https://everycube.alen.is/
129•Alen123•5h ago•29 comments

Recycle – Floppydisks

https://www.floppydisk.com/recycle
33•calvinmorrison•2h ago•8 comments

The “mechanical miracle” that ruined Mark Twain’s life

https://resobscura.substack.com/p/the-mechanical-miracle-that-ruined
86•benbreen•5d ago•32 comments

Show HN: Needle2: 14MB agentic LLM for phones, wearables, smart home and robots

https://cactuscompute.com/needle
239•HenryNdubuaku•11h ago•97 comments

Hyperspace

https://hypercritical.co/hyperspace/
30•swyx•2h ago•17 comments

Mark Zuckerberg attacks 'closed' AI rivals as Meta returns to open models

https://www.ft.com/content/4e3957f8-ea7c-4c46-a3de-cdce8e526878
433•root-parent•14h ago•417 comments

Rust SIMD on the GPU

https://www.vectorware.com/blog/simd-on-gpu/
157•sagacity•10h ago•71 comments

Stowaway – Take the window seat on any plane or satellite overhead

https://stowaway.live/
187•thunderbong•3d ago•18 comments

Sonic Pi v5

https://www.patreon.com/samaaron/posts/sonic-pi-v5-166001392
335•samaaron•3d ago•83 comments

World Train Map – 1247 train routes around the world

https://worldtrainmap.com/
80•Flightmussy•6h ago•27 comments

Publishing Schematics Before “Open Source” Was a Word

https://fabscene.medium.com/publishing-schematics-before-open-source-was-a-word-55-years-of-akizu...
78•extralongdivisi•3d ago•18 comments

Confessions of a Long-Distance Sailor

https://arachnoid.com/lutusp/sailbook.html
82•AntiRush•8h ago•20 comments

Muse Glimmer: 30B-parameter model optimized for always-on local agent workflows

https://research.meta.ai/blog/introducing-muse-glimmer-open-agentic-model
1074•riordan•18h ago•590 comments

Squeak 6.1

https://squeak.org/release_notes/6.1/
242•fniephaus•16h ago•122 comments

Humanising LLM Outputs Is Dumb

https://kuber.studio/blog/Reflections/Humanising-LLM-Outputs-is-Actually-Dumb
185•kuberwastaken•15h ago•113 comments

LFM2.5 2.6B model competitive with 4x larger models

https://huggingface.co/LiquidAI/LFM2.5-2.6B
4•nateb2022•6d ago•0 comments

Exploiting System Management Mode with a very long interrupt

https://github.com/xoreaxeaxeax/smiiiiiiiiiiiiiiii
145•WhiteDawn•12h ago•54 comments

Updated GPG Key for Signing Firefox and Thunderbird Releases

https://blog.mozilla.org/security/2026/08/10/updated-gpg-key-for-signing-firefox-and-thunderbird-...
13•csmantle•56m ago•3 comments

Why My Father Is Wrong: A Defense of Guitar Hero

https://whatever.scalzi.com/2026/08/10/why-my-father-is-wrong-a-defense-of-guitar-hero/
17•Tomte•1h ago•3 comments

What's the best programming language for coding agents?

http://danluu.com/pl-tokens/
101•chaychoong•12h ago•70 comments

The Story of Mac: A Just-So Story

https://gigamonkeys.com/book/macros-defining-your-own
22•kscarlet•5d ago•2 comments

Choral: Choreographic Programming for Java

https://www.choral-lang.org/
11•dplyukhin•3d ago•1 comments

Launch HN: Stoa Markets (YC S26) – A Marketplace for GPUs and AI Servers

https://www.stoaexchange.com
70•erenberke•12h ago•45 comments

Parametron: 50s Japanese computer that uses neither transistors nor vacuum tubes

https://ethw.org/Milestones:Parametron,_1954
205•xeonmc•18h ago•50 comments

50k Boat Names

https://www.beautifulpublicdata.com/boat-names/
171•jonathanmkeegan•16h ago•106 comments

Ask HN: In your experience, what are sound conventions for e-ink UI development?

167•BoxOfRain•3d ago•54 comments

Exploring Claude/GPT Knowledge Cutoffs and Pre-Training Timelines

https://blog.sshh.io/p/exploring-claudegpt-knowledge-cutoffs
130•sshh12•14h ago•16 comments

Letter to Governor Abbott on responsible AI infrastructure in Texas

https://openai.com/index/responsible-ai-infrastructure-texas/
102•hackerBanana•14h ago•188 comments