motrm

I wonder if OP didn't realise there was this _Show Hidden Files_ option and their .git was indeed backed up.

That would be nice, they'd be able to get their history back!

Mildly pedantic, and of course ignores how wild this whole thing is, but I don't think this bit is correct:

  After waiting for a little while, the program terminated with the following output:
  
  astrid@chungus infra  gzip -vc result/nixos.img | ssh [email protected] -- bash -c 'gunzip -vc > /dev/sda'
  [email protected]'s password:
   77.8% -- replaced with stdout
  
  What happened here?

The 77.8% bit is gunzip -v reporting that it finished decompressing the data to stdout and that the compression ratio was 77.8%... so this invocation may well have succeeded. Assuming, as rwmj points out, nothing else stomped on any of the written blocks.

I do like this idea - with sufficient prep of the system before writing the image, namely stopping as many processes as possible especially those that might do some writing, it's a quick and dirty way to replace a stock OS with a ready-made image. Could perhaps be safer doing it twice, once into a minimal image that does very little beyond network bringup & runs ssh, followed by final OS replacement in a (more) controlled manner.

Very suspicious URL for this, with a prominent link to Trezor Suite at suite-trezorup[.]com - looks a lot like phishing. Be careful.

Sounds like a dialup modem at about 3:30 :)

How sure are we the aliens aren't trying to dial in?

DNA makes me think of ASN.1 in that a short sequence of bits can convey rather a lot of information - but it makes no sense without knowing which message those bits represent. Only with that knowledge can you turn those bits into something useful.

Echoing parrit's comment, this was indeed a very nice read and very well written.

I particularly enjoyed the gentle exposition into the world of cgroups and how they work, the levers available, and finally how Ubicloud uses them.

Looking forward to reading how you handle burst credits over longer periods, once you implement that :)

Lovely work, Maciek!

It's incredible to see such capability on such a tiny board.

The LA9310 has incredible specs, too, what a beast.

Have you done anything with its Network Listening feature? I'm curious if that's frequency flexible or if it's limited to a specific handful of common bands.

How have you found the NXP SDK, is it reasonably decent to work with?

I have to say this is perhaps one of my favourite CCC talks.

Interesting subject matter, novel technical problems and solutions, story narrated at speed and with just enough information to fill in typical knowledge gaps, and on top of all of that there's slides and answers ready to go for random questions from the audience.

Wonderful job, PistonMiner!