This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.
On March 29th, 2024, a backdoor was discovered in xz-utils, a suite of software that
This is me documenting my journey moving my Homelab from a Qnap NAS and a Single host Proxmox server to a Hyper-converged multi-node Proxmox Cluster.
The reason to document it here is twofold:
It's written 'first to scratch my own itch' but hopefully it benefits others too, or even better, that others improve upon my implementations. Feel free to comment or share improvements and insights!
This is how I hand-track polar-orbiting weather satellites using an old equatorial mount telescope tripod and a 1.7 GHz grid dish. This may not be the best way to do it, and other ideas are welcome!
If you're unfamiliar with HRPT reception, this is not the right place to learn about it. Head over to https://sgcderek.github.io/blog/beginner-hrpt-guide.html for that. This write-up only focuses on hand-tracking to record a baseband.
The crux of the "tracking" design is the equatorial mount. These are not cheap to buy new, it's destructive to mount a dish to it, and the mount is not used the way it's designed - but for my needs, it works! I had an old one from the early 1990s lying around, so it was convenient and essentially free. Of course, you can use another mount - but you'll need to ask for someone else's opinion on how that works since equatorial is all I know 😄.
Sometimes it seems like the first (and sometimes only) advice you get offered for almost any problem with a Raspberry Pi is "check your power supply". You think something like:
"hey, I'm using an official power supply sold as being matched with my Pi so how can there be any problem?"
You look up the specs then stick a controlled load across your supply and confirm that it can deliver the required number of Watts.
Yet your problems persist…
Today I wanted to move existing APFS-resident macOS Catalina installation to a new disk. I upgraded my late 2014 Mac Mini with a shiny new 1TB SSD. This took way too many hours of my life I will never get back. Hope this saves some time to you.
Good news:
This information is relevant for Catalina (I'm currently running macOS 10.15.1).
This week NN Group released a video by Jakob Nielsen in which he attempts to help designers deal with the problem of customers being resistant to their new site/product redesign. The argument goes thusly:
There's slightly more to it than that, he caveats his argument with requiring you to have of course followed their best practices on product design, and allows for a period of customers being able to elect to continue to use the old site, although he says this is obviously only a temporary solution as you don't want to support both.
This work is released under a Creative Commons Attribution-NoDerivatives 4.0 International License.
"OpenPGP" refers to the OpenPGP protocol, in much the same way that HTML refers to the protocol that specifies how to write a web page. "GnuPG", "SequoiaPGP", "OpenPGP.js", and others are implementations of the OpenPGP protocol in the same way that Mozilla Firefox, Google Chromium, and Microsoft Edge refer to software packages that process HTML data.
This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).
Matrix multiplication is a mathematical operation that defines the product of
This is a simple egg pasta recipe that I've been refining over the years of making fresh pasta for my family. It's based on a recipe I picked up while I was a line cook at a family Italian place about 20 years ago that has long since gone out of business; I've put it back together and adjusted it so it scales down as easily as it does up. Originally, this was made in 10kg (20+ pound) batches.
This dough isn't suitable for extruders, it is intended for rolling and cutting. That means you can make pretty much any kind of noodle, or lasagna sheet out of it. If you want to make ravioli or other stuffed pasta, you want to use a recipe with quite a bit more egg in it, and more steps for drying. If you want to make shaped pasta, such as shells, you probably want a durum wheat & water (eggless) dough recipe instead.
