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Standard Thermal: Energy Storage 500x Cheaper Than Batteries

https://austinvernon.site/blog/standardthermal.html
53•pfdietz•1h ago•26 comments

What are OKLCH colors?

https://jakub.kr/components/oklch-colors
411•tontonius•7h ago•89 comments

An Illustrated Guide to OAuth

https://www.ducktyped.org/p/an-illustrated-guide-to-oauth
22•egonschiele•1h ago•2 comments

Agent-C: a 4KB AI agent

https://github.com/bravenewxyz/agent-c
42•liszper•2h ago•30 comments

We Put Agentic AI Browsers to the Test – They Clicked, They Paid, They Failed

https://guard.io/labs/scamlexity-we-put-agentic-ai-browsers-to-the-test-they-clicked-they-paid-th...
83•mindracer•6h ago•27 comments

SmallJS: Smalltalk-80 that compiles to JavaScript

https://small-js.org/Home/Home.html
77•mpweiher•1d ago•14 comments

Git-Annex

https://git-annex.branchable.com/
150•keepamovin•9h ago•40 comments

The great medieval water myth (2013)

https://leslefts.blogspot.com/2013/11/the-great-medieval-water-myth.html
47•apsec112•20h ago•21 comments

Mathematical secrets of ancient tablet unlocked after nearly a century of study (2017)

https://www.theguardian.com/science/2017/aug/24/mathematical-secrets-of-ancient-tablet-unlocked-a...
8•surement•16h ago•1 comments

Busy beaver hunters reach numbers that overwhelm ordinary math

https://www.quantamagazine.org/busy-beaver-hunters-reach-numbers-that-overwhelm-ordinary-math-202...
161•defrost•2d ago•58 comments

The SD Association has an official SD card format utility [Win/OS X/Linux]

https://www.sdcard.org/downloads/sd-memory-card-formatter-for-linux/
42•Almondsetat•1d ago•33 comments

The Unix-Haters Handbook (1994) [pdf]

https://simson.net/ref/ugh.pdf
119•oliverkwebb•12h ago•56 comments

We put a coding agent in a while loop

https://github.com/repomirrorhq/repomirror/blob/main/repomirror.md
293•sfarshid•21h ago•207 comments

Show HN: Sping – An HTTP/TCP latency tool that's easy on the eye

https://dseltzer.gitlab.io/sping/docs/
145•zorlack•13h ago•20 comments

Is 4chan the perfect Pirate Bay poster child to justify wider UK site-blocking?

https://torrentfreak.com/uk-govt-finds-ideal-pirate-bay-poster-boy-to-sell-blocking-of-non-pirate...
299•gloxkiqcza•21h ago•496 comments

Ban me at the IP level if you don't like me

https://boston.conman.org/2025/08/21.1
365•classichasclass•9h ago•252 comments

In-Memory Filesystems in Rust

https://andre.arko.net/2025/08/18/in-memory-filesystems-in-rust/
73•ingve•1d ago•35 comments

Show HN: CasCache – multi-generational cache with optimistic concurrency control

https://github.com/unkn0wn-root/cascache
11•unkn0wn_root•1d ago•1 comments

From Hackathon to YC

https://www.producthunt.com/p/april-yc-s25/from-hackathon-to-yc
49•rmason•15h ago•20 comments

The two versions of Parquet

https://www.jeronimo.dev/the-two-versions-of-parquet/
184•tanelpoder•4d ago•39 comments

Trees on city streets cope with drought by drinking from leaky pipes

https://www.newscientist.com/article/2487804-trees-on-city-streets-cope-with-drought-by-drinking-...
199•bookofjoe•2d ago•103 comments

Claim: GPT-5-pro can prove new interesting mathematics

https://twitter.com/SebastienBubeck/status/1958198661139009862
206•marcuschong•4d ago•111 comments

Making games in Go: 3 months without LLMs vs. 3 days with LLMs

https://marianogappa.github.io/software/2025/08/24/i-made-two-card-games-in-go/
323•maloga•22h ago•210 comments

Show HN: Clearcam – Add AI object detection to your IP CCTV cameras

https://github.com/roryclear/clearcam
197•roryclear•1d ago•53 comments

YouTube made AI enhancements to videos without warning or permission

https://www.bbc.com/future/article/20250822-youtube-is-using-ai-to-edit-videos-without-permission
204•jakub_g•1d ago•148 comments

A Brilliant and Nearby One-off Fast Radio Burst Localized to 13 pc Precision

https://iopscience.iop.org/article/10.3847/2041-8213/adf62f
85•gnabgib•18h ago•25 comments

Uncle Sam shouldn't own Intel stock

https://www.wsj.com/opinion/uncle-sam-shouldnt-own-intel-stock-ccd6986d
243•aspenmayer•15h ago•245 comments

Everything I know about good API design

https://www.seangoedecke.com/good-api-design/
342•ahamez•18h ago•119 comments

Cloudflare incident on August 21, 2025

https://blog.cloudflare.com/cloudflare-incident-on-august-21-2025/
189•achalshah•3d ago•38 comments

Show HN: I Built a XSLT Blog Framework

https://vgr.land/content/posts/20250821.xml
87•vgr-land•20h ago•45 comments
Open in hackernews

The SD Association has an official SD card format utility [Win/OS X/Linux]

https://www.sdcard.org/downloads/sd-memory-card-formatter-for-linux/
42•Almondsetat•1d ago

Comments

chrism238•1d ago
So, not OSX?
ycombinatrix•1d ago
It's there. The website just has poor navigation & OP linked specifically to the Linux version for whatever reason.
Almondsetat•1d ago
You can either link the linux version or the Win/OSX version. This is a petty complaint
ycombinatrix•1d ago
What did I complain about? You're getting upset over absolutely nothing. That's not healthy.
Almondsetat•23h ago
"for whatever reason"
ycombinatrix•7h ago
I just meant that I don't know why you chose to link the Linux version. Sorry, I didn't intend to be rude.
robin_reala•3h ago
The Windows/Mac page can be found at https://www.sdcard.org/downloads/formatter/ . Caveat:

Note: If you have a Mac with Apple silicon, e.g. M1, you might be asked to install Rosetta in order to open the SD Card Formatter.

msgodel•3h ago
It's so odd they don't publish the source. You'd think an organization like this which at least claims to have strong opinions about how sd card formatting should work would want to actually communicate what those opinions are.
bayindirh•3h ago
How can you license the correct formatting process and create a sweet recurring value stream for the shareholders of the SD Card Association if you open source this?

Are you a communist? /s

Jokes aside. I'd love to see this standardized and widely available with a document why SD cards needs to be formatted this way, but I think everyone is afraid that someone's patent or secret or something will be revealed, and its library form is probably, really a revenue stream for them.

Shortsighted, I may say.

numpad0•2h ago
It's also an organization created by Panasonic, SanDisk, and Toshiba. The entire FOSS scene are technically irrelevant to those companies - you might think software like Linux Kernel would be pretty important, but that tech is available to everybody, which makes it just a constant.

Also, this tool exists to fix card errors at field and reduce support costs, not to advocate their superior jutsu of formatting. The latter is not the point.

rollcat•46m ago
I wonder how much money have these three companies made from FOSS in the last quarter alone. I guess they don't know either, it's easy to take all of that work for granted.
numpad0•7m ago
They also tend to buy Linux from someone, often MontaVista last I did some Googling long time ago...

The fundamental problem, I think, is that FOSS didn't really take off in Japan the way it did in US/EU, for some reason. There are tons of code-literate engineers but way less who would be sympathetic with developer community building, code sharing, licensing discussions, etc., that are more common in communities from US/EU.

05•1h ago
Doubly idiotic since just running it under strace and feeding that to a LLM would get you an open source version in no time..
rollcat•45m ago
You now need an LLM to go thru write calls?
BenjiWiebe•27m ago
I used an AI to help reverse engineer a weird JS login flow so I could automate it.

I could've done it without AI (I've done it before) but it would've taken me 20x longer.

uyjulian•1h ago
Someone actually reverse engineered the formatting and made a open source tool that does the equivalent on Linux: https://github.com/profi200/sdFormatLinux
gustafla•45m ago
I think one of the reasons for the proprietary licensing is that this software is built with Tuxera IP. As is typical for a mostly B2B software company, Tuxera wants to keep potentially advantageous features and optimizations proprietary.
dcminter•3h ago
Related discussion from 2023: https://news.ycombinator.com/item?id=35610243

I didn't see that the first time around so this re-post was interesting, thanks! There's a bit of discussion in the other thread about the "protected area" - anyone got good links to the minutiae of that? How big is it, what tools exist to access it etc. ?

em500•1h ago
The “protected area” was probably reserved for DRM keys for video distribution, an envisioned use case that never took off for SD cards, and hasn’t been relevant for at least a decade.

https://www.sdcard.org/developers/sd-standard-overview/conte...

dcminter•52m ago
Yeah, I'm vaguely aware of this - jsut because of the "S" in SD standing for "Secure" as a euphemism for DRM stuff. From your link it seems likely that most cards probably don't even support it nowadays, but I'm still kind of curious about how exactly it was intended to be accessed - for example what extended commands might have been available. Presumably there's a spec somewhere for it, and presumably one can at the bare minimum ask a card "do you have a protected area available?"
smaudet•11m ago
I'd be interested in the specific commands/spec too, however as with all DRM techs I wouldn't be surprised if it's hidden behind NDAs.

However you can see from the parent comment:

> Success of mutual authentication enables host to access card protected area.

So it's something the memory control must make available after a handshake, and then I presume either some specific memory address or set of retrieval commands would follow.

As you mention, it also states this spec is now optional.

Wowfunhappy•3h ago
I have legitimately had this fix weird errors with SD cards in certain devices when nothing else worked.
MortyWaves•1h ago
Sadly it doesn’t seem to be able to fix the several SD cards killed by the raspberry pis I have.
Neywiny•1h ago
Likely worn out sectors. Sadly such products are easy in that they don't have a read only file system, but for the majority of users that would help. Maybe there should be a simple script called "finalize" that turns it read only
smaudet•8m ago
Didn't there use to be a physical read lock on SD cards?

I know "modern" cards have no space, but if it's important to you, you can still use the full size adapters which should (all?) have the physical lock. Super glue that in place...

ab71e5•56m ago
Pro tip: Use a read only rootfs and use overlayfs to write any changes to ram instead of the SD. Then you just gotta put your state on a USB drive, network etc.
OuterVale•2h ago
I love this tool. I use it not just for SD cards but for all sorts of portable storage.

It seems to fix things where Windows File Explorer's formatter and other tools fail. A simple tool that does a really good job. It has even fixed some partition weirdness I've needed to deal with.

actionfromafar•1h ago
It works on really old versions of Windows too, even XP I think.
bayindirh•1h ago
While this tool saved my beef a couple of times, I found out that zeroing the device (partially or fully) with dd and partitioning it with gparted (the CLI tool) did also wonders.

I had a wonky HIKSemi USB flash drive, which turned out to be partitioned in a very unaligned way, and neither the flash nor the controller liked that much. Doing it manually and making sure it's aligned (which gparted does automatically) converted it to a very dependable drive.

BobbyTables2•2h ago
I wonder if this does anything more than fill with zeros or 0xFFs and then run the normal file system formatting… Maybe trim/discard operation too.

Seems weird it can be applied to bitlocker to go volumes.

gustafla•35m ago
It can discard with the proper SD commands (use `--discard`), if your SD adapter supports that. So not with USB card readers, but with many built-in SD card slots. The main reason to use this formatter instead of the OS built-in formatter (or mkfs) is that this creates the correct type of file system (FAT or exFAT depending on card size) and uses correct allocation sizes etc. for devices expecting a factory-formatted card.
gustafla•56m ago
I work as a junior software engineer at the company developing this software (Tuxera Inc.), and I have done some release testing work on this. I might have influenced the "Arch Linux" support that is mentioned on the page under System Requirements, because I also tested it on my machine :)
zoobab•54m ago
Not open source.