Ángel Ortega

@angel@triptico.com

ex-writer, ex-programmer, ex-musician, ex-illustrator
ex-escritor, ex-programador, ex-músico, ex-dibujante
40.4231709,-3.6612241
https://triptico.com
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Ángel Ortega »

Esto puede estar bien.

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Ángel Ortega »

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Ángel Ortega »

@liw@toot.liw.fi @joeyh@octodon.social

The word is old and comes from mystical Gnosticism:

Pleroma (Koinē Greek: πλήρωμα, literally "fullness") generally refers to the totality of divine powers.
https://en.wikipedia.org/wiki/Pleroma

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Ángel Ortega »

@Anarcat@kolektiva.social @benjojo@benjojo.co.uk I use snac, which is also lightweight and less 'crazy' than honk...

https://codeberg.org/grunfink/snac2

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Ángel Ortega »

Well, I bet on brave things 😉

Jokes aside, it feels pretty stable and slim.

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Ángel Ortega »

Using the [XTerm] bell as modern notification (Antoine Baupré):

https://anarc.at/blog/2022-11-08-modern-bell-urgency/

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Ángel Ortega »

As you requested, I say hi. I've been following you from the Planet Debian RSS from like forever, and I've always enjoyed your aggregated posts, specially those regarding your kids and their love of trains. I miss those posts, they were very charming and well written.

On a more prosaic matter, I also was for years a happy user of you offlineimap application.

Cheers!

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Ángel Ortega »

TL;DR: «el fediverso también es una mierda porque está lleno de personas».

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Ángel Ortega »

I think this show works because the main characters are horrible persons (among other things, of course).

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Ángel Ortega »

I totally agree with you, it's their descensus ad inferos what make the show fascinating, as they start being good people and end up being cold monsters because of the circunstancies. The case for Ruth is specially heartbreaking because he is how she is due to poverty and family issues, she tries but never succeeds.

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Ángel Ortega »

Como estoy totalmente fuera de las redes se me pasó enterarme de que mi relato Un árbol con vistas fue finalista del premio Domingo Santos de Relato 2022.

El convocante del certamen, AEFCFT/Pórtico, publicará un libro electrónico gratuito incluyendo mi relato junto al ganador y los otros tres finalistas. En cuanto me entere de cómo y desde dónde descargarlo, pondré el enlace por aquí.

https://twitter.com/Portico_AEFCFT/status/1576181898488950786

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Ángel Ortega »

There is no univocal relation between users and people in this network (nor in any other, for that matter). Some 'users' may belong to the same person. Some 'users' may be bots.

What you have in you hard drives are users (or accounts), not people.

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Ángel Ortega »

TIL that you can have a full-path soname in a dynamic library, so that binaries linked to it can find it even if it's in a non-standard place:

gcc -shared -o libcrazy.so -Wl,-soname,/an/esoteric/place/to/store/libcrazy.so crazy.c
gcc -o main -L. -lcrazy main.c
This way, you don't need kludges regarding the use of LD_LIBRARY_PATH nor anything else.

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Ángel Ortega »

TIL by accident that you can type make from inside gdb and does what you think it does.

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Ángel Ortega »

Wow, strangest.saddest.city is probably the most beautiful domain name ever.

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Ángel Ortega »

I wonder what do they sell in this place.

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Ángel Ortega »

I suggest that, instead of keeping the "thread" format as a chain of brief messages (which were used in Twitter to avoid one of its severe limitations), you move all your valuable information to a more suitable format, like a web page or a blog entry or somewhat similar.

Then you can publish here links to your creations for us to enjoy.

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Ángel Ortega »

If you want to create an executable program in memory and execute it without going through the filesystem, this is how you do it (Linux only):

int fd = memfd_create("foo", MFD_CLOEXEC);
// write your image to fd however you want
fexecve(fd, argv, envp);
https://unix.stackexchange.com/questions/230472/can-i-exec-an-entirely-new-process-without-an-executable-file

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Ángel Ortega »

Madre mía. ¿Esto pasa en todas las opciones del menú, o solo en el de "Eliminar cuenta"?

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Ángel Ortega »

If you develop in C, you'll probably end up using memory leak detection tools like valgrind, libleak or the scan-build tool from the LLVM compiler. There is a less known tool inside the GCC compiler itself: the -fsanitize=address.

If you use a standard make setup, you can recompile your project doing

make CFLAGS="-fsanitize=address -fno-omit-frame-pointer"
After exiting your program, a summary of memory leak errors (including the line of the source code were it happened) will be printed out.

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Ángel Ortega »

Interesting, will try. I'm surprised about the use of mustard, though. Is mustard taste too present?

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Ángel Ortega »

Why is it called the fediverse?
It comes from FEDerated unIVERSE.

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Ángel Ortega »

Fast character case conversion (or how to really compress sparse arrays):

Converting strings and characters between lower and upper cases is a very common need.

In particular, case conversion is often used to implement case-insensitive comparision, an operation that is often present on the program's fast paths as a part of data container lookups and content manipulation.

So it is usually desirable to make case conversions as fast as possible.

In this post we are going to look at one of the options - very fast case conversion using compressed lookup tables and also at some options for compressing these even further.

https://github.com/apankrat/notes/tree/master/fast-case-conversion

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Ángel Ortega »

Stop writing Twitter threads! (Pierre Equoy):

So please, please, if you plan on writing something longer than a bad joke or a snarky comment, do not use Twitter. Your ideas, your findings, your knowledge deserve better. Put your thoughts on your own website or blog, and share it with the World using whatever social network you see fit.
These apply much more so to the Fediverse, where you don't have the stupid character limitation.

https://pierre.equoy.fr/blog/posts/2022/10/stop-writing-twitter-threads/

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Ángel Ortega »

Insightful thought, but... doesn't this apply to mostly all artistic disciplines, e.g. books? You always pay before being able to know if you like it or not.

I was about to say it happens on music records at well, but the economic model has changed on this as you don't buy those things anymore.

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Ángel Ortega »

Estropeo el clickbait: usar el lavavajillas consume menos agua y menos energía para calentarla que lavar a mano.

Además, hay otra cosa que (creo que) el artículo no menciona: usar el lavavajillas es más higiénico porque las temperaturas que se alcanzan dentro también achicharran a buena parte de los bichos.

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Ángel Ortega »

Time is an illusion, Unix time doubly so... (Jan Schaumann):

"At the time we didn't have tapes and we had a couple of file-systems running and we kept changing the origin of time," he said. "So finally we said, 'Let's pick one thing that's not going to overflow for a while.' 1970 seemed to be as good as any. "
-- Dennis Ritchie
https://www.netmeister.org/blog/epoch.html

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Ángel Ortega »

Igual es el momento de que pruebes OpenBSD. El soporte de 32bits es completo y no tengo noticia de que piensen abandonarlo en breve. No necesita demasiados recursos y tienes todos los escritorios ligeros que conoces.

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Ángel Ortega »

Ya de paso, conviene recordar también que los administradores de las instancias Mastodon pueden leer los mensajes directos de sus usuarios:

" Clarify that DMs can be read by instance owners #18079 "

https://github.com/mastodon/mastodon/issues/18079

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Ángel Ortega »

From the article:

Unlike Ext4, Btrfs does not support encryption [...]
Does ext4 really support encryption? I meant, of course you can use LUKS and ext4 over it, but...

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Ángel Ortega »

Perceptual hashing (Matt Rickard):

Hashing algorithms map data to an arbitrary fixed-size value. Most hashing algorithms actively try to avoid collisions – e.g., minimizing the probability of two different keys having the same hash. Perceptual hashes do the opposite – they maximize collisions by creating some dimension of data locality – similar keys have similar hashes.
https://matt-rickard.com/perceptual-hashing

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Ángel Ortega »

Si no recuerdo mal, incluso lo puedes configurar para que siempre grabe las conversaciones telefónicas.

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Ángel Ortega »

Respecto a esto, existe una aplicación en F-Droid que se llama FFUpdater que permite actualizar a la última versión del Firefox. Yo la tengo instalada en mi Samsung J5 con Lineage OS y funciona de cine.

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Ángel Ortega »

OpenBSD 7.2 has been released:

https://marc.info/?l=openbsd-misc&m=166627387020774&w=2

Congratulations to everyone involved.

...

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Ángel Ortega »

My OpenBSD home server and my OpenBSD laptop have been upgraded with no problem. Maybe even faster than in previous releases.

The ps program now implements the -f (forest) argument, which is not really that important, but makes my muscle memory happy because I'm accustomed to decades of Linux typing ps xaf.

The pkg_add -u command is now blazing fast.

This is a fantastic piece of work by a fantastic group of people. If you use it, it would be nice to contribute:

https://www.openbsd.org/donations.html

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Ángel Ortega »

How to check if any word is zero (Wojciech Muła):

http://0x80.pl/notesen/2021-03-11-any-word-is-zero.html

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Ángel Ortega »

Cory Doctorow:

20 years ago, if you ate dinner under the unblinking eye of a CCTV, it was because you were housed in a supermax prison. Today, it's because you were unwise enough to pay hundreds or thousands of dollars for "home automation" from Google, Apple, Amazon or another "luxury surveillance" vendor.
https://pluralistic.net/2022/10/07/sensory-deprivation/#sensorship

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Ángel Ortega »

@chuso@mastodon.social @VictorMoral@mastodon.social yo uso el servicio web y lo tengo siempre abierto en una pestaña del Firefox (de esas pinned, pequeñitas, a la izquierda). Igual me pierdo alguna funcionalidad, pero yo no he echado de menos nada.

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Ángel Ortega »

While re-reading ActivityPub documentation, I've discovered that there is a Dislike message type. Not to repent from liking something (that would be an Undo + Like message), but to actively show your disapproval of something 🤷

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Ángel Ortega »

No sé si será el caso, pero he visto que los programas hechos en Go ocupan locuras como esas.

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Ángel Ortega »

My opinion is that it should return a 5xx as a way to tell the client they did not do anything wrong. If the client is a user-operated web browser there is not much to do about it, but if the client is a library it tells the programmer that the error is not their fault (i.e. packets are not malformed nor data missing and so).

Good question, anyhow.

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Ángel Ortega »

@freezr@bsd.network @brynet@bsd.network will obsdfreqd be included in the packages, Solène?

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Ángel Ortega »

ꙮ҄ꙮ҄ꙮ҄ Night is a beast made of eyes Ꙭ ꙮꙮ҄ꙮ҄

The multiocular O is a rare form of the Cyrillic letter О. How rare?

Rare enough to occur in a single phrase, in a single text written in an extinct language, Old Church Slavonic.

The text is a copy of the Book of Psalms, written around 1429 and kept in Russia

https://languagehat.com/multiocular-o/

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Ángel Ortega »

It's not new at all (2005, things may have changed very much), but this document about the architecture of QEMU from its author Fabrice Bellard is fascinating:

https://www.usenix.org/legacy/event/usenix05/tech/freenix/full_papers/bellard/bellard.pdf

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Ángel Ortega »

Read out there:

What's the word that's not schadenfreude, but means "enjoying someone else's tech misery because, thank fuck it's not me, but also hoping the poor schmuck manages to solve his problem because, (a) he's a nice guy and (2) I really want to know the solution".
😆

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Ángel Ortega »

Using a Framework will harm the maintenance of your software:

https://berk.es/2022/09/06/frameworks-harm-maintenance/

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Ángel Ortega »

Poor man's profiler, or profiling a running program with a cheap combination of gdb, awk and scripting:

Sampling tools like oprofile or dtrace's profile provider don't really provide methods to see what [multithreaded] programs are blocking on - only where they spend CPU time. Though there exist advanced techniques (such as systemtap and dtrace call level probes), it is overkill to build upon that [...]
[...] one needs to improvise, like.. use debuggers - they can walk threads and provide stacks.
http://poormansprofiler.org/

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Ángel Ortega »

@solene@bsd.network @alderwick@merveilles.town It also protects you (somewhat) in ransomware intrusion cases if your snapshots are read-only.

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Ángel Ortega »

The Days since incident web site keeps track of the latest catastrophic events:

https://neal.fun/days-since-incident/

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Ángel Ortega »

Though I understand those who were against it, I think this is a very good decision.

Debian will be much more accessible and easier to install, and that can only be good for everyone.

Congratulations.

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Ángel Ortega »

Awesome. Also, the MD5 starts and ends with 1337 which is also awesome.

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Ángel Ortega »

Deliberately on purpose.

See also aibohpphobia: fear of palindromes.

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Ángel Ortega »

Hola. Esto parece suficientemente estable como para tener mi presencia aquí.

Escribiré poco pero leeré todo lo que mandes.

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Ángel Ortega »

"I need privacy. Not because my actions are questionable, but because 'your' judgement and intentions are."
https://tilde.zone/@gemlog/109025812633991107

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