Hacker News: privatelypublic

New comment by privatelypublic in "Mic-E-Mouse – Covert eavesdropping through computer mice"

privatelypublic — Mon, 06 Oct 2025 02:49:24 +0000

Lets ignore the open source FUD in the diagram.

New comment by privatelypublic in "BYD builds fastest car"

privatelypublic — Mon, 06 Oct 2025 00:38:13 +0000

Apples to broccoli comparison. Besides what I mentioned being optional (I'm sure it has downsides, probably cost), comparing road legal cars with a supercar is... interesting.

New comment by privatelypublic in "BYD builds fastest car"

privatelypublic — Sun, 05 Oct 2025 23:37:06 +0000

I'll need evidence of "Top power at Top Voltage." Since so little capacity is at that part of the curve, It'd make sense to design around (as in avoid, not feature) it rather than use it.

I suspect theres inductance and capacitance enough that even if the motors can't handle the voltage, it can be "clipped" until the pack comes down. (Especially since fmu these are 3phase AC motors, the motor driver is already regulating voltage and current to produce whatever the optimal waveform is)

New comment by privatelypublic in "Fire destroys S. Korean government's cloud storage system, no backups available"

privatelypublic — Sun, 05 Oct 2025 19:54:47 +0000

I'd be interested in if you can even use dry fire suppression on the 5th floor of a building.

New comment by privatelypublic in "Self-hosting email like it's 1984"

privatelypublic — Sun, 05 Oct 2025 01:40:51 +0000

Long winded admission that you might as well pay for google's email service.

New comment by privatelypublic in "Clavier: An FPGA-based mechanical keyboard with USB hub and comms interfaces"

privatelypublic — Sun, 05 Oct 2025 01:38:57 +0000

Yea. Fun, but not optimal for a product. 1000Hz is already comically faster than any human muscle reaction.

New comment by privatelypublic in "Toyota runs a car-hacking event to boost security (2024)"

privatelypublic — Sat, 04 Oct 2025 13:24:56 +0000

I know the receivers are often in a vulnerable position. But, on my 2008 era car- the code I've seen for SDR decoding is a broadcast MAC, pressure and a temp value.

New comment by privatelypublic in "AMD's EPYC 9355P: Inside a 32 Core Zen 5 Server Chip"

privatelypublic — Sat, 04 Oct 2025 01:35:11 +0000

I'm interested in... why? What are you building that loading data from disk is so lopsided vs CPu load from compiling, or network load/latency(one 200ms of "is this the current git repo?" Is a heck of a lot of NVMe latency... and its going to be closer to 2s than 200ms)

New comment by privatelypublic in "Windows 7 marketshare jumps to nearly 10% as Windows 10 support is about to end"

privatelypublic — Thu, 02 Oct 2025 17:17:01 +0000

That's routine. Windows generally ends up nuking the OEM partitions if you do golden installs.

New comment by privatelypublic in "Mind the encryptionroot: How to save your data when ZFS loses its mind"

privatelypublic — Thu, 02 Oct 2025 15:22:10 +0000

Except, zero knowledge replication is why ZFE native encryption got funded. I believe it was Datto specifically.

New comment by privatelypublic in "Mind the encryptionroot: How to save your data when ZFS loses its mind"

privatelypublic — Wed, 01 Oct 2025 01:02:42 +0000

I'm not sure if anybody is wrong or right. But this should be officially documented, a specific error provided- not "permission denied", and a workflow to fix it that doesn't involve patching the driver.

New comment by privatelypublic in "Not all OCuLink eGPU docks are created equal"

privatelypublic — Tue, 30 Sep 2025 17:18:36 +0000

Try disabling C states in the bios. My 5950x developed that issue, as did a friends 5600x.

New comment by privatelypublic in "Founder sentenced to seven years in prison for fraudulent sale to JPMorgan"

privatelypublic — Tue, 30 Sep 2025 15:33:36 +0000

What are you thinking the crime would be? He bet his company on a literal toss of the dice instead of the routine figurative ones.

Outside of Bribery and ?SarBox? (Whichever regulation handles kickbacks, etc), I can't think of anything.

New comment by privatelypublic in "Solar panels + cold = A potential problem"

privatelypublic — Tue, 30 Sep 2025 01:44:14 +0000

It doesn't matter if it's true. And those spec sheets aren't what you'll find on amazon products. I looked at them, didn't see any mention of temperature. Also, stupid things use XT60 connectors. Not remotely appropriate for 150v DC.

New comment by privatelypublic in "Not all OCuLink eGPU docks are created equal"

privatelypublic — Mon, 29 Sep 2025 18:55:48 +0000

Haha, touché- forgot the Pi5 only has a single lane.

The comment came out of knowing if the cable's a little dodgy the timing could be off- scrambling the PCIe signals (easier to just tape it off than look up if its supposed to matter and then tape it off anyway), and the fact my first HBA had the "QC pass" sticker prevent some lanes from connecting and the whole card was unresponsive as a result.

New comment by privatelypublic in "Not all OCuLink eGPU docks are created equal"

privatelypublic — Mon, 29 Sep 2025 17:39:48 +0000

Are they actually extra? Or does the other cable simply route them over coax? Answer here is to grab a couple SFF-???? Breakout boards, a scope, and a signal generator.

Another thing to consider is isolating all but the first PCIe lane.

New comment by privatelypublic in "Solar panels + cold = A potential problem"

privatelypublic — Mon, 29 Sep 2025 16:00:50 +0000

Suspiciously so. I'd love to see somebody(or somebodies) with an established reputation reverse the controller software & hardware.

New comment by privatelypublic in "Solar panels + cold = A potential problem"

privatelypublic — Mon, 29 Sep 2025 15:55:48 +0000

Likely a reference to the recent addition of sesame to the allergen disclosure legislation in the US, and the subsequent rampant over labeling.

Nobody seems to remember a bunch of companies receiving rather large fines for pulling known bull-crap "may contain sesame."

New comment by privatelypublic in "Solar panels + cold = A potential problem"

privatelypublic — Mon, 29 Sep 2025 15:52:22 +0000

Open circuit voltage is _very much_ widely considered to be the maximum. If its not spec'd openly as " at temp X" then it's reasonable to expect it to be invariant.

"Voc 37v @ 25*C"

"Voc 37v"

Edit: Isc is the same- max current.

New comment by privatelypublic in "Solar panels + cold = A potential problem"

privatelypublic — Sun, 28 Sep 2025 22:05:20 +0000

That's humanity in general. But yea- general guide says "add up your open circuit voltage and don't exceed that." If something fails because of the panel manages to get more than 1000W of solar flux, and is cold... it's the mfgr's problem.

I need to actually look up why the extra flux increases voltage. Maybe it really doesn't but just moves the MPP to a higher voltage by having more current.