Hacker News: Cadwhisker

BYD car was easily hacked by cybersecurity expert

Cadwhisker — Mon, 21 Sep 2026 06:19:59 +0000

Article URL: https://www.abc.net.au/news/2026-09-21/byd-hacked-by-cybersecurity-expert-vehicle-sabotage-surveillance/107139482

Comments URL: https://news.ycombinator.com/item?id=49783639

Points: 3

# Comments: 0

New comment by Cadwhisker in "Apple iPhone 18 Pro Camera test"

Cadwhisker — Mon, 21 Sep 2026 01:27:37 +0000

The site is currently down (for me, at least):

https://web.archive.org/web/20260920202324/https://www.dxoma...

New comment by Cadwhisker in "Adventures in Microcontroller Circuit Debugging"

Cadwhisker — Sun, 20 Sep 2026 02:40:11 +0000

I've got a standard check-list of tests to run before any deep analysis on faulty circuit behaviour:

1. Check the power rails are correct and stable (at the target devices, not the PSU source)

2. Check the resets are correct (polarity, level, sequencing) and reaching where they're needed

3. Check the clock is toggling cleanly (no jitter, has clean monotonic waveform)

4. General signal integrity and setup/hold of signals that are related to the issue

That catches a lot of basic issues. If those are all clean, then you go deeper.

To the article author's suspicion of crystals, I have seen crystal oscillators fail (stopping toggling) as ambient temperature ramps up and down; that's a nasty one to catch and prove, but it can happen. Changing vendor was the only solution there.

New comment by Cadwhisker in "XCancel service is suspended until further notice"

Cadwhisker — Wed, 16 Sep 2026 06:57:33 +0000

This extension is blocked under Firefox for the following reason:

This add-on violates Mozilla's add-on policies by collecting user data without disclosure, consent or control and executing remote code

New comment by Cadwhisker in "Twenty Years of RISC OS Open"

Cadwhisker — Sun, 02 Aug 2026 23:03:26 +0000

I have a RiscPC in the shed and a half-repaired A3000. I don't fire them up them often, but both have !Director launching on boot; it is a wonderful program. Thanks!

New comment by Cadwhisker in "crustc: entirety of `rustc`, translated to C"

Cadwhisker — Thu, 02 Jul 2026 23:38:53 +0000

> The primary goal of this is support for old/obscure hardware with no LLVM/GCC support. There are still some systems out there that don't support Rust but support C.

The landing page mentions Plan 9 as one of the systems.

New comment by Cadwhisker in "Claude Fable is relentlessly proactive"

Cadwhisker — Sat, 13 Jun 2026 07:26:04 +0000

There goes my coding assistant (removed by US gov't). It was useful while it lasted. (eye-roll)

https://news.ycombinator.com/item?id=48511072

New comment by Cadwhisker in "Claude Fable is relentlessly proactive"

Cadwhisker — Fri, 12 Jun 2026 03:11:45 +0000

My personal experience of Fable 5 doing its own thing has been very positive.

I was trying to find the root cause of a crash in a Python module which left no errors in the log or console. Fable wrote a test harness that simulated clicks in the UI, then bisected my code until it found the point where it started crashing. It exaggerated the cause of the crash, then ran a series of bash one-liners to make Python virtual environments under `/tmp` for each version of that Python module until it found one that did not crash.

It went way deeper to root cause discovery (a regression in the module causing a heap allocation overflow) than I could have done myself, provided enough info and a simplified example to raise a bug report and then wrote a work-around to prevent that from happening in my application.

I don't let it run completely loose; I review each CLI command it wants to run and I append answers to the "yes" continue action (if I have them) to prevent excessive token use.

New comment by Cadwhisker in "macOS Container Machines"

Cadwhisker — Wed, 10 Jun 2026 05:35:44 +0000

Install Windows 11 ARM under the macOS "UTM" App. This lets you run x86 Windows programs on Apple silicon.

New comment by Cadwhisker in "Ultrafast machine learning on FPGAs via Kolmogorov-Arnold Networks"

Cadwhisker — Wed, 10 Jun 2026 00:43:49 +0000

If you want to experiment with KANs yourself in a non-FPGA environment, there's a GitHub repo here: https://github.com/KindXiaoming/pykan

HN comments page on that is here: https://news.ycombinator.com/item?id=40219205

New comment by Cadwhisker in "Crystal Nights (2008)"

Cadwhisker — Tue, 02 Jun 2026 03:11:31 +0000

Greg Egan writes novels with plots that revolve around high-end science, physics and mathematics with some very wild concepts and conclusions. Even better, he has animations and illustrations of some of his books' concepts on his website for those that want to go deeper.

I hadn't noticed his Miscellaneous Fiction section, so this is a nice rabbit hole to find.

New comment by Cadwhisker in "Update on "Co-authored-by: Copilot" in commit messages"

Cadwhisker — Wed, 06 May 2026 05:05:57 +0000

“Sent from my iPhone” is a default signature, but you can change the message under Settings -> Apps -> Mail -> Signature (at the bottom of the options page)

New comment by Cadwhisker in "Quarkdown – Markdown with Superpowers"

Cadwhisker — Tue, 28 Apr 2026 01:19:20 +0000

My /usr/bin/ folder wants to know which bit gets italicised :)

New comment by Cadwhisker in "Charcuterie – Visual similarity Unicode explorer"

Cadwhisker — Thu, 09 Apr 2026 23:10:43 +0000

Very impressive that I can sketch a character in the top-left and get a close match. That's a real highlight showing that there's more going on under the hood than a big look-up table.

New comment by Cadwhisker in "From Oscilloscope to Wireshark: A UDP Story (2022)"

Cadwhisker — Fri, 20 Mar 2026 04:52:42 +0000

I love the photo of the probe, and I bet it's very expensive. I wonder if the "A071626" sticker changes the impedance of the traces enough for you to notice :)

https://www.mattkeeter.com/blog/2022-08-11-udp/probes_full.j...

New comment by Cadwhisker in "We can't have nice things because of AI scrapers"

Cadwhisker — Sun, 18 Jan 2026 05:40:11 +0000

Thanks, I get it now.

New comment by Cadwhisker in "We can't have nice things because of AI scrapers"

Cadwhisker — Wed, 14 Jan 2026 03:06:21 +0000

I took a look at the https://tvnfo.com/ site and I have no idea what's behind the donation wall. Can I suggest you have a single page which explains or demonstrates the content, or there's no reason for "new" people to want to donate to get access.

New comment by Cadwhisker in "Who Watches the Waymos? I do [video]"

Cadwhisker — Thu, 25 Dec 2025 22:35:23 +0000

I had to replay that to appreciate how the transitions from night to day were done so very, very well. The dynamic range of the shots always seemed spot on.

That isn't easy to get right.

New comment by Cadwhisker in "FPGAs Need a New Future"

Cadwhisker — Tue, 23 Dec 2025 02:53:04 +0000

Yes, IP usage is awkward and tricky. You can use the GUI to make the initial .xci file or .tcl file, but when you build a project, you need to use the same version of Vivado that the IP core was originally created in. Xilinx have improved that a little with 'write_ip_tcl' and 'write_bd_tcl' now having flags that let you ignore the version (or minor version). I've not had time to try those yet.

New comment by Cadwhisker in "FPGAs Need a New Future"

Cadwhisker — Tue, 23 Dec 2025 01:24:09 +0000

I've managed to make nice 'make' flows for Vivado, ISE, Quartus and DC. Libero took a bit more poking, but it's also possible.

The GUI interfaces are what newcomers tend to aim for straight away, but they're not good for any long-term "repeatable" build flows and they're no use for CI. I think this is where a lot of the frustration comes from.