I have seen the topic a bit late, but nevertheless:
I have learned 6502 assembler (and assembler) in general with
"6502 assembly language programming by Lance A. Leventhal" (1979) [1] and
"Apple Machine Language by Don Inman & Kurt Inman" (1981) [2]
For the 'internals' of the machine, I had "What's Where in the Apple: A Complete Guide to the Apple Computer by William F. Luebbert" (1985) amazon:[3]
From the article:
"The consequences for a consumer buying a shady USB cable likely aren’t too bad".
I can't second that, but more to the software/driver side.
Without my knowledge, I once had a counterfeit cable that costed several days of my life.
At that time, the FTDI drivers recognized (and as I read did some other things [1]) that a counterfeit cable was connected, but instead of simply disabling the function, they impeded it.
In my case: After pressing the first few keys on terminal connection, the transmission from the device to the PC worked, but not the reverse direction.
A long search for the error came to an end after I replaced the USB/RS232 with a new one.
This was with windows, with Linux even the counterfeit worked.
Before Linux 6.5, memfd_secret() was disabled by default and only available if the system administrator turned it on using "secretmem.enable=y" kernel parameter.
[...]
"To prevent potential data leaks of memory regions backed by memfd_secret() from a hybernation image, hybernation is prevented when there are active memfd_secret() users."
Useful site if you are on to perf/eBPF/performance things with many examples and descriptions even for other uses as e.g. memory usage, disk usage (prefer heatmaps here but they are nice if you want to send someone a interactive view of their directory tree ...).
Every of the lightning talks itself had about 20 short different topics,
And as I wrote these were examples, you didn't expect someone to re-enumerate them here all to refute your statement. You can easily find them yourself.
Have look at this page, where others listed their favorites, there are many more.
But I don't think from your reply you didn't look at the list of sessions yourself.
As someone who has been following the congress for twenty years (and if I couldn't be there, I watched streams and recordings), I have to say once again that it used to be better. The selection of topics was broader and more interesting. About fifteen years ago, politics entered the picture, and over the years it has become more and more prevalent. Strange people began to appear, and about ten years ago, this event ceased to be a cozy meeting place for hackers and geeks. I am very sad about that.
I am not a HIFI/TV aficionado, but the ACR [1] thing was new to me.
I hope it is not yet important for me as I never allowed a TV access to my LAN/WLAN. But with smart devices using accessible open WLANs to transmit who knows.
The sensitivity
When I play with phypbox [1] there is a sensitivity in the µT range.
From the web page [2] the device build has a 0.1 nT resolution and 50 ppm absolute accuracy.
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