dancsi

Actually, it is just serial under the hood, although electrically slightly nonstandard.

This reminds me of how the student meal subsidies are implemented in Slovenia, and in my opinion it was quite unwieldy. You call a phone number and place your phone's earpiece on another device with a microphone. Then, some personal data is transmitted using (ultra?)sound. I remember it being quite unreliable, but that might be down to using the telephone network as the data carrier.

I guess it will be easier to get it working with Zotero, as it's open source, and I think it even supports custom plug-ins.

This looks neat, but I don't really understand how it works. I imagine that the DNS record is pointed towards the VPS, and the VPS just forwards all traffic to the actual server via wireguard?

The implementation of the __cos kernel in Musl is actually quite elegant. After reducing the input to the range [-pi/4, pi/4], it just applies the best degree-14 polynomial for approximating the cosine on this interval. It turns out that this suffices for having an error that is less than the machine precision. The coefficients of this polynomial can be computed with the Remez algorithm, but even truncating the Chebyshev expansion is going to yield much better results than any of the methods proposed by the author.

Now they have added it for host keys.

Have you tried Kodi (kodi.tv)?

It seems to me that you can select some of the largest EU countries by clicking the US flag in the top right corner.

Does somebody know which color scheme are they using in these screenshots?

Maybe it is Slashdot?

It would be great if this feature was extended so that I can sync my books across different Calibre installations on different machines.

As for the last point, you are right, they are purposefully sending encrypted/encoded(?) data to your phone, which is then sent to their server. The raw spectrum will only be returned from the server if you have an even more expensive "researcher" account...