7kay · HackerTrans

NuttX runs on the ESP32[1] which provides a rather featureful shell[2] as well as a file system.

[1] https://nuttx.apache.org/docs/latest/platforms/xtensa/esp32/...

[2] https://nuttx.apache.org/docs/latest/applications/nsh/index....

7kay

5 anni fadiscuss

As others have already pointed out this exercise used a huge dish(a radio telescope[1]) and significant power. This is in no way an economically viable mode of communication. Using satellites in low earth orbit requires less power and a significantly smaller antenna. Putting LoRa on satellites has been done before, see e.g. [2].

[1]: https://en.wikipedia.org/wiki/Dwingeloo_Radio_Observatory

[2]: https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=4...

7kay

5 anni fadiscuss

No, the radio waves bounce off the moon's surface. The retroreflectors are not necessary for that, otherwise stuff like Earth-Venus-Earth bounces[1] would not be possible.

[1]: https://amsat-dl.org/en/earth-venus-earth-experiment-of-amsa...

7kay

5 anni fadiscuss

For reference (mostly for me as I need this from time to time), you can do the same on dpkg-based distros with

     $ dpkg -L imagemagick-6.q16 | grep bin
     /usr/bin
     /usr/bin/animate-im6.q16
     /usr/bin/compare-im6.q16
     /usr/bin/composite-im6.q16
     /usr/bin/conjure-im6.q16
     /usr/bin/convert-im6.q16
     /usr/bin/display-im6.q16
     /usr/bin/identify-im6.q16
     /usr/bin/import-im6.q16
     /usr/bin/mogrify-im6.q16
     /usr/bin/montage-im6.q16
     /usr/bin/stream-im6.q16

Similarly, you get

     $ dpkg-query -S /usr/bin/convert-im6.q16 
     imagemagick-6.q16: /usr/bin/convert-im6.q16

This does not work for the canonical executables though as they are just symlinks to /etc/alternatives/foobar

7kay

5 anni fadiscuss

May I ask what made you choose lazygit instead of fugitive? I'm using the latter and am quite happy with it, but I'm keen to learn what I'm missing out on.

7kay

5 anni fadiscuss

Do you use the native-comp branch of emacs? This probably doesn't make any difference when it comes to multithreading but it should make the experience a bit more smooth.

7kay

5 anni fadiscuss

You might want to consider using the BR2_EXTERNAL feature[1] to keep your customizations outside of the buildroot tree.

[1]: https://buildroot.org/downloads/manual/manual.html#outside-b...

7kay

5 anni fadiscuss

I guess this is a thing you could achieve with neovim-remote[1]. My main use case for it avoiding nested neovim processes in the inbuilt terminal, though

[1]: https://github.com/mhinz/neovim-remote

7kay

5 anni fadiscuss

Speyer has the Buran as well

https://speyer.technik-museum.de/en/spaceshuttle-buran

7kay

5 anni fadiscuss

The easiest way to leave the gray zone would be to get a ham radio license. Although this might vary from country to country, generally you are allowed to use selfbuilt transmitters in specific frequency ranges, which also includes noncertified hardware.

7kay

5 anni fadiscuss

They use GMAT, the General Mission Analysis Tool https://opensource.gsfc.nasa.gov/projects/GMAT/index.php

7kay

5 anni fadiscuss

Do I guess correctly that you have cockpit running on the host and manage guests via the cockpit-machines plugin? If so, do you have any hints on where to find documentation about that? A cursory glance at the repo didn't produce much information.

7kay

5 anni fadiscuss

You might wanna tell the people of Oulu that Finns don't see cycling as a means of transportation: https://youtu.be/Uhx-26GfCBU

You don't maintain extensive bike infrastructure during harsh winters just for a few leisure cyclists. Although I agree that no one comes close to the Dutch, the situation in Germany is not as grim as you describe it. The quality of cycling infrastructure varies from city to city and I guess it's safe to say that infrastructure is the main driving force in getting people on the bike. Münster isn't famous for nothing, right?

7kay

5 anni fadiscuss

Each country's member association of the International Amateur Radio Union[0] likely provides information on ways to get your ham radio license in the specific country.

Germany: https://www.darc.de/einsteiger/amateurfunkausbildung/

UK: https://rsgb.org/main/get-started-in-amateur-radio/

France: https://promocom.r-e-f.org/

Sweden: https://www.ssa.se/amatorradio/bli-radioamator/

[0]: https://www.iaru.org/reference/member-societies/

7kay

5 anni fadiscuss

This reminded me of ledger, the plain text accounting tool. FWIW, ledger has time tracking and billing capabilities, too.

For example: https://github.com/anarcat/ledger-timetracking

You can also use the aforementioned org-clock-in with it.

7kay

6 anni fadiscuss

You're right, that's the basic ingredient #1 I forgot to mention. Functional rDNS is essential. You don't want to have your mail server running at home anyhow. A friend of mine had a janky setup at home until I convinced him it's a bad idea.

7kay

6 anni fadiscuss

I run my own mail server and have never experienced such issues. The important thing is that your mail server is not an open relay and you set up DKIM and SPF. Oh, and never run a mail server with an ip originating in a residential area, you'll get blacklisted almost instantly by virtually any mail provider.

7kay

6 anni fadiscuss

I'm gonna assume said Jörg is German. Quoting from Wikipedia

> German names containing umlauts (ä, ö, ü) and/or ß are spelled in the correct way in the non-machine-readable zone of the passport, but with AE, OE, UE, and/or SS in the machine-readable zone

In my EU driver's license the umlauts are spelled in the correct way, these aren't in my name, though.

https://en.wikipedia.org/wiki/German_passport#Different_spel...

7kay

6 anni fadiscuss

I know of expression-search(https://github.com/wangvisual/expression-search) but it is not supported in recent versions of Thunderbird. I'd be interested as well as I've been longing for a proper keyboard UI. For quickly switching folders there is Nostalgy(https://github.com/nostalgy/nostalgy).

7kay

6 anni fadiscuss

I'm interested in fractional calculus.

It all started with an argument I had with my high school math teacher about whether something like a half derivative is a thing. Turns out fractional calculus is a real thing and shows up in many applied areas of math. The Fractional Calculus by Oldham and Spanier I have lying around treats its applications to diffusion problems, for example. As an EE student fractional PID controller design and fractional signal processing are interesting as well.

For a quick peek into that subject I would recommend watching Dr Peyam's videos on half derivatives[0].

[0]: https://www.youtube.com/watch?v=eB3OUl5TVSY

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