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jcul

830 karma · joined May 27, 2017

[ my public key: https://keybase.io/jackculhane; my proof: https://keybase.io/jackculhane/sigs/eIDmNI59fKl08Jq1AmAWWd_TfK6ttWLEgZwSBKu2PzM ]

@jcul:matrix.org

meet.hn/city/ie-Cork

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jcul··on How to set up SPF, DKIM, and DMARC for your sending domain
This is a cool site to visualise your SPF, DKIM, DMARC setup interactively.

https://www.learndmarc.com/

jcul··on I'm the mom in that viral Giants clip. Let me tell you about my husband
I can confirm the ergobaby is great.

Though the memory of owning one and knowing about different brands of baby carriers feels like it belongs to another lifetime now.

jcul··on Boards of Casio
I was hoping this was a play on Boards of Canada and I was not disappointed.

I was just listening this week after not having listened in some time, as it's the 30th anniversary of Hi Scores.

jcul··on How my e-reader lost its stripes
Yeah, my old kobo clara hd fits in my pocket, but it's not perfect, feels like it would get damaged.

I had been looking at the clara bw when I thought my hd was broken but managed to repair it.

Do you have the X4 or X3? I imagine with the small size it's barely a few sentences per page? Feels like it would be difficult to read comfortably. Maybe it's like reading one of those tiny bibles.

jcul··on How my e-reader lost its stripes
I'm not convinced on the price. It's about 75 euro delivered for me.

It's about half the price of a kobo Clara bw, which has much better specs, higher ppi, waterproof etc.

I am tempted though.

jcul··on GrapheneOS' rewritten Messages app is released
Where I live, an sms app is not very important. It's almost exclusively used for two factor authentication messages. Everyone uses WhatsApp, signal, telegram etc, even businesses and services.

So having a bare bones aosp messaging app was never an issue for me. Having said that, I find fossify messages pretty good.

Will try out the new GOS app too.

jcul··on Show HN: What if the speed of light was 5 km/h?
I'm reading the clockwork rocket at the moment. It's a little different but it's set in a universe where the laws of physics / behaviour of light seems to be different to our own.
jcul··on Tiny $70 Xteink X3 e-reader
On point 1, I was imagining that people would just think I was starting intently at a small phone.

Which is a little embarrassing to be so absorbed in a device.

jcul··on Tiny $70 Xteink X3 e-reader
I have an old kobo Clara hd.

I considered buying an X4 for the portability (and to be honest installing and tinkering with crosspoint sounds fun).

But the kobo can fit in my jeans pocket and is about the size of a normal paperback page. I feel like the X4 would be too small and might be frustrating.

jcul··on Fastpotify
Wow, I'm usually the first to complain about buggy software and bad UX. But I use spotify on android and linux and I have no issues.

Everything works really well?

I can manage playlists, play on one device, control on another etc.

jcul··on Creepy Crawlies
Monero is fascinating. I downloaded the spec and tried to digest it, but the mathematics and cryptography are quite dense, at least for a casual read.

I might try to tackle it again when I can give it some more attention.

jcul··on Kobo can run apps now
I'm still using my kobo clara hd that I bought 8 years ago.

What a great device.

jcul··on Quake Shareware, a CD-ROM just a little too full
IIUC the rotating challenge actually didn't have anything to do with the key, it was a red herring. The actual decryption key was just a function of the fixed serial number or something like that.
jcul··on A Physicist Rigged His Pet Hamster’s Wheel to Upload to Strava
Reminds me of the universal paperclip thing. AI harvesting matter for more hamsters.
jcul··on Advancing the price-performance frontier with GPT‑5.6
It's crazy. Are they doing any precomputing as you type, I wonder if you paste a block of text is it the same speed.
jcul··on 1,741 "informed" consents with one click? GDPR complaint filed
I've seen similar on some android apps I think, where it will ask you if you consent to sharing data with partners or something similar.

When you say no there's a huge list of partners you have to disable one by one, it's probably 15 minutes of work to go through them all.

I can't think of an example app right now, but usually it's on first install or something like that. Not sure GDPR applies to apps though.

jcul··on New HIV vaccine shows unprecedented success in preclinical study
Does this double dose completely prevent infection?
jcul··on New HIV vaccine shows unprecedented success in preclinical study
I recently read "Everything is Tuberculosis". It describes a similar issue with the rich / poor country divide.

It's quite sad and difficult to read at times.

jcul··on GrapheneOS protections against data extraction from locked devices
I'm not sure it would have been that easy for them to back it up.

Depending on his settings.

You can disable the usb port entirely if you like, so that it is only possible to charge the device by switching it off. Or enable charging only when unlocked etc.

Or if his device had rebooted I don't think it would be possible to extract anything.

jcul··on Couple pay >$800k for a gene-editing therapy for their daughter. She died.
During my wife's second pregnancy, we got a lot more information and did more preparation than for the first.

Someone shared the BRAIN acronym for making decisions.

Can't remember it exactly, but it was like ask / think about benefits, risks, alternatives, intuition, doing Nothing (for now).

I think the Nothing one was the most important, what happens if I don't take action and defer the decision. Medical professionals often make you feel like a decision is urgent when sometimes it is not.

jcul··on Stop Using OpenCode
I tried opencode and pi recently.

Having come from Claude code, I was a bit shocked that both seem to allow edits by default with no confirmation dialog.

One IIRC allows you to enable it in config and the other needs a plugin.

jcul··on The time the x86 emulator team found code so bad they fixed it during emulation
Ah you're right, I misread it.
jcul··on GrapheneOS has been ported to Android 17
I'm in Europe, but I had accepted that I had to do without. I hadn't heard of curve, going to check that out.
jcul··on The time the x86 emulator team found code so bad they fixed it during emulation
I've seen a lot of code that just assumes fread / fwrite succeeded without bothering to check the return value...

But in this case if the code was calling fread 65536 times in a loop and getting 64KiB each time it wouldn't be good either!

Sounds like the parent comment had to fix this with the internal cache thing to speed up the small freads. I think they meant the easy fix would have been swapping the args in the original / caller code.

jcul··on A PDF that changes based on how its read
Yeah it's quite strange. I was tapping trying to expand it. Tried landscape but it truncates at the same point (Firefox android).
jcul··on Branchless Quicksort faster than std:sort and pdqsort with C and C++ API
First version has a side effect of writing to small_numbers[0] always.

The compiler probability can't optimize that in the second version.

If it wrote unconditionally and incremented only in the if then I'd guess they would compile to the same thing.

jcul··on Creatine raises brain energy levels and slows cognitive decline: study
Magnesium has a crazy effect on my sleep, very very noticeably deeper.

Not necessarily more restful, but deep and I don't remember anything. With B6 it's deep but more interspersed with vivid dreams.

I take zinc with them too, my own zma stack basically. I'm not sure the zinc has a direct effect on sleep, I take it for testosterone benefits.

These made me realize that legal vitamins and supplements can have much more than a subtle effect.

jcul··on Zig: Build System Reworked
It made me laugh to think of C implementers being adversarial! It can feel that way.

I haven't really used modern C, not sure if it's evolved as much as modern C++, which I feel is a joy to use, and a lot safer. But then I've been writing C++ for decades.

I feel like C evolved from basically syntax sugar for assembly, so that's where all the footguns come from, rather than being actually adversarial.

jcul··on Didgeridoo playing as alternative treatment for obstructive sleep apnoea (2006)
Reminds me of that guy who started drinking water upside down to train his swallow muscles and cure his chronic heartburn.
jcul··on Didgeridoo playing as alternative treatment for obstructive sleep apnoea (2006)
If you've ever done the wim hof breathing method, it is a very intense experience.

Basically hyperventilation + long breath holds. Probably similar to what free divers do without the mammalian dive reflex due to the cold water. Or like a dangerous game kids used to do when I was in school where you hyperventilate and then have someone press on your chest until you pass out.

But anyway, I'm not sure if the science would back it up, but Wim Hof describes it as over oxygenating the blood and then stopping and letting CO2 ramp up or something. Whether it is significantly dropping the CO2 or increasing oxygen during the hyperventilation phase, isn't it kind of the same thing? Adjusting the ratio.

Anecdotally, when I was doing it regularly I seemed to not get sick at all.

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