Hacker News: ohazi

New comment by ohazi in "Anonymous request-token comparisons from Opus 4.6 and Opus 4.7"

ohazi — Sat, 18 Apr 2026 18:20:52 +0000

They're so much louder now, though.

New comment by ohazi in "Optimizing a lock-free ring buffer"

ohazi — Thu, 26 Mar 2026 20:59:34 +0000

I use my own very similar version of this spsc lock-free ring buffer on almost every embedded project I work on that has to stream any sort of sampled data (e.g. audio). You can even have the consumer end be a DMA into something like a uart or USB peripheral so your microcontroller userspace doesn't have to touch the hardware.

New comment by ohazi in "Gas Town Decoded"

ohazi — Mon, 19 Jan 2026 00:44:30 +0000

Real, genuinely confused human here: Can someone please clarify whether or not gas town is/was a joke? I've searched repeatedly and can't find anything that looks like an obvious tell, and I'm not sure if this is because it's actually real and people are taking it seriously, or because the pages and pages of discourse surrounding it is AI generated and taking itself literally.

If it's not a joke... I have no words. You've all gone insane.

New comment by ohazi in "My Tamagotchi is an RL agent playing Slither.io"

ohazi — Tue, 06 Jan 2026 19:50:36 +0000

> (Sent through Gemini to blur my monitor).

Excuse me, what?

New comment by ohazi in "A Cozy Mk IV light aircraft crashed after 3D-printed part was weakened by heat"

ohazi — Thu, 04 Dec 2025 21:17:03 +0000

What a misunderstanding -- glass transition temperature means different things for thermoplastics (i.e. anything that comes out of an FDM printer like the CF-ABS in question) and for thermosetting resins like epoxy that actually undergo molecular cross-linking during the curing phase. Thermoplastics will get soft and can deform without limit, while thermosets get rubbery but still more or less hold their formed shape.

New comment by ohazi in "A Cozy Mk IV light aircraft crashed after 3D-printed part was weakened by heat"

ohazi — Thu, 04 Dec 2025 21:11:19 +0000

Actual report: https://aviation-safety.net/wikibase/487013

Material was CF-ABS

New comment by ohazi in "Bach Cello Suites (2024)"

ohazi — Fri, 26 Sep 2025 17:57:38 +0000

Hey, Joe! This is one of my favorite cello pieces -- so hauntingly beautiful. I've probably listened to Janos Starker's performance dozens of times, but I also liked Inbal Segev's version. Parts of it seemed brighter somehow.

New comment by ohazi in "U.S. bombs Iranian nuclear sites"

ohazi — Sun, 22 Jun 2025 03:00:19 +0000

Fuel grade is like 3%. It's exponentially harder to go from 3%-60% (months-years) than 60%-90%(days-weeks). So no, the only reason to enrich that high is to keep your breakout time threateningly short.

New comment by ohazi in "A 32-bit processor made with an atomically thin semiconductor"

ohazi — Fri, 11 Apr 2025 19:53:22 +0000

I suspected that this was the case when they mentioned adding "one bit at a time" -- the CPU design that they implemented is Olof Kindgren's SERV [0], a tiny bit-serial risc-v CPU/soc (award-winning, of course).

From [1]:

> Olof Kindgren

> 5th April 2025 at 10:59 am

> It’s a great achievement, but I’m of course a little sad to see that it’s not mentioned anywhere that Wuji is just a renaming of my CPU, SERV. They even pasted in block diagrams from my documentation.

[0] https://github.com/olofk/serv

[1] https://www.electronicsweekly.com/news/business/2d-32-bit-ri...

New comment by ohazi in "Silicon Labs Shrinks Wireless SoCs to Extend BLE to Miniature Devices"

ohazi — Thu, 20 Mar 2025 16:41:56 +0000

This doesn't integrate the antenna, so it's not comparable.

New comment by ohazi in "I think we need a bigger boot partition"

ohazi — Wed, 19 Mar 2025 13:52:38 +0000

I encountered the same issue on my desktop, but ended up doing the partition surgery a little differently.

First I resized /, /home, etc. for some extra space, then I moved them all forward a bit, then I resized /boot. Complicated by various layers of LVM and encryption.

This took longer and in retrospect was perhaps a bit riskier, but it had the advantage of not needing to change any configuration on the actual system (since all of the partition numbers/names/uuids remained the same -- they just showed up at slightly different places with slightly different sizes). So the whole operation could be done entirely from a live/rescue environment.

New comment by ohazi in "Ask HN: What less-popular systems programming language are you using?"

ohazi — Tue, 04 Mar 2025 18:54:25 +0000

Rust hasn't fallen off, it's just largely considered mainstream now.

New comment by ohazi in "Is the world becoming uninsurable?"

ohazi — Fri, 17 Jan 2025 06:14:20 +0000

Earthquakes.

Options are wood again, or steel and concrete.

New comment by ohazi in "FreeBSD Suspend/Resume"

ohazi — Mon, 13 Jan 2025 21:07:17 +0000

RIP S3 sleep... Took years to get it to work reliably under Linux, then we had a good decade+ run of it "just working" like this, now back to trying to weed out all the wacky platform quirks and weird hardware/firmware behavior that make the S0ix states be just barely unusable.

Maybe in another five years...

New comment by ohazi in "Neuroplasticity in F16 fighter jet pilots"

ohazi — Tue, 10 Dec 2024 18:00:29 +0000

There also seem to be a lot of anecdotal suggestions that learning how to use that AR/HUD single-eyepiece thing when flying the Apache helicopter similarly requires some brain-reorganizing shenanigans to fully master.

New comment by ohazi in "Intel's 14A Magic Bullet: Directed Self-Assembly (DSA)"

ohazi — Fri, 19 Apr 2024 22:10:51 +0000

Numerical aperture

https://en.wikipedia.org/wiki/Numerical_aperture

New comment by ohazi in "Texas Legalizes Kei Trucks"

ohazi — Fri, 12 Apr 2024 13:44:04 +0000

Similarly, a lot of these trucks seem to have "farm use only" plates.

New comment by ohazi in "JavaScript Bloat in 2024"

ohazi — Fri, 23 Feb 2024 06:23:41 +0000

Not surprised at all that JIRA is 50 MB, but still... What the fuck

New comment by ohazi in "Battery power management for power users (2023)"

ohazi — Sun, 04 Feb 2024 04:53:05 +0000

No, this is bad advice. Yes, battery management software has gotten better, but you still can't get around physics. Keeping lithium polymer cells at close to 4.2V per cell for prolonged periods of time will degrade them quickly, regardless of any clever "maintenance mode" hacks that make the cell dance around the top 5% of it's capacity. But also, never charging past 80% will confuse the charge controller and start giving you incorrect percentages if it's not expecting you to do that.

Charge to 80% most days, charge to 100% occasionally, avoid discharging beyond 10 or 15%.

New comment by ohazi in "A search for technosignatures around nearby stars"

ohazi — Thu, 17 Aug 2023 04:41:04 +0000

I had a professor who would jokingly say "It's lonely in 128 dimensions"