Chao-c'

Nedokončil studia na vysoké škole života. Mužský rod, tykej mi. ADHD. ⁂ 🇺🇳 🇪🇺 🇨🇿 🇺🇦 🇬🇱

Moderator of f.cz. We recycle waste heat of our datacenter. If you read this on bsky I can't interact back unless you follow @ap.brid.gy

SpráFce obsahu instance f.cz. Odpadní teplo datacentra ISP SPOJE.NET, kde tohle běží, se využívá. Solární cyklista, cestovatel. Linuxák, ex-programátor (Arachne), ex-muzikant. Fanoušek kosmického výzkumu, vědy a techniky. Zakládající člen Pirátů. 🐧 🚀 🐘 🚲

Bluesky: @xchaos.f.cz.ap.brid.gy
NYX: https://nyx.cz/profile/XCHAOS
Firma: https://www.spoje.net
Web: https://www.arachne.cz

Public Key

npub1lghe6hgrpdtpsafzd4tvtv79phsl2tunf2lflefxqdstlj698s7q9wasqw

NIP-05 Address

[email protected]

Profile Code

nprofile1qqs05tuat5psk4scw53x64k9k0zsmc0497f5405lu5nqxc9ledznc0qpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsdz5vem

Publishing to

relay.primal.net

nos.lol

relay.damus.io

Author Public Key

npub1lghe6hgrpdtpsafzd4tvtv79phsl2tunf2lflefxqdstlj698s7q9wasqw

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Last Notes

2026-03-28 10:29:20 GMT

Please, can anybody explain this #C #programming #riddle? It was originally intended as example for first lesson of C course for beginners, but I fell into trap!
The source:
#include <stdio.h>
void main(void)
{
int a=1, b=1;
printf("Hello++: a==%d, b==%d, a++==%d, ++b==%d, a==%d, b==%d, a--==%d, --b==%d, a==%d, b==%d\n",a,b,a++,++b,a,b,a--,--b,a,b);
}
The output:
Hello++: a==1, b==1, a++==0, ++b==1, a==1, b==1, a--==1, --b==1, a==1, b==1
(Hint: it works as expected, if you separate the single printf into 5 printf-s with 2 arguments each. The problem is unexpected behavior of C++-ish ++ and -- operators, when used multiple times as multiple function arguments. Remainds me of multiple evaluation of macro arguments, or something like that)

2026-03-11 18:18:25 GMT

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it was proposal by our MEP for @npub17y5…fjmz
https://www.pirati.cz/jak-pirati-pracuji/gregorova-prosadila-svuj-navrh-kterym-defakto-konci-chat-control-stale-ale-neni-vyhrano/
(I am member of Czech Pirate Party since 2009...)

2026-02-14 08:35:08 GMT

One of the most famous image captions on Wikipedia evolved over time:
https://en.wikipedia.org/wiki/Scottish_National_Antarctic_Expedition
"The penguin's feet were tied while Kerr tested its reaction to the music."
This example also shows the importance of the ALT tags on the Mastodon.
#wiki #antarctica #scottland
https://f.cz/system/media_attachments/files/116/068/050/625/454/184/original/51e3a9a7a46dd51c.jpg

2026-01-11 19:18:04 GMT

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... which in turn was one of the reasons the ayatollah dictatorship came to power...

2026-01-10 19:23:43 GMT

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but it would be lot of fun... and I think this is exactly something, what some local cargo bike community is going to do: pick one ton with van, and then organize distribution of generic 50 kg packages for free to anyone, who arrives on cargo bike :)
@npub1yhg…nv3t

2026-01-10 18:45:34 GMT

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I can imagine... but the "giveaway, but only over 1t" is interesting strategy :-) I wonder if there will be any neighborhood cooperatives trying to handle this, or so...

2026-01-10 17:51:31 GMT

RE: https://embracing.space/@IngaLovinde/115871308408150713
This is quite interesting take on the question of "post scarcity" and "free lunch": you can get free potatoes, but only if you can accept at least 1t. Why not let's say 100kg? That would be doable using cargobike...
:mastoflushed:
#note1huh…ynld

2026-01-04 09:46:56 GMT

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We can offer more or less the same to more European leaning instances... @npub1ycm…l644

2025-12-29 19:12:55 GMT

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závidím ti sebedůvěru, se kterou jsi si jistý, že Rust se naučíš stejně snadno, jako předchozí jazyky... já sice okamžitě dostal pocit, že se mi "líbí" víc, než třeba C++, ale to není žádná záruka, že je i jednodušší, než C++ (a znalost některých konceptů v C++ se při učení Rustu určitě může hodit).
Být tebou, tak kontaktuju @npub12qq…kjzl - ten se do toho docela ponořil. Ale když jsem s ním o tom v létě mluvil, tak říkal, že pracovních příležitostí v Rustu zas tak moc není... takže stěží nějaká pozice bude otevřená pro začátečníka.

2025-12-26 18:37:30 GMT

If you are trying hard to keep registrations on your instance open for everyone, like we do, try to block registrations from following mailservers:
contaco.org
hetzez.com
aliban.org
m3player.com
rescueence.com
meocon.org
choichay.com
easymailer.live
hiemail.net
gamintor.com
consistth.com
kontoko.org
nuoifb.com
bomnet.net
They are now so desperate that they even retry from the same mailservers...
#fedispam #fediban #fediblock #fediverse #botnet

2025-12-19 20:07:09 GMT

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but some of us were born into system, when praising Karl Marx was kind of obligatory, in a semi-religious, not practical sense...

2025-11-11 15:40:59 GMT

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what is surprising, that it was more or less predicited by dystopian science fiction. Someone just turned the dystopia into business model...

2025-10-18 09:18:46 GMT

In EU, the #NoKings type protest marketing would be complicated by the fact, that some of the member states are actually monarchies (constitutional and democratically governed, but technically still kingdoms).
But the autocratic and populist tendencies are on the rise in Europe as well, so we should consider the fact, that the actual kings and queens may be on our side in Europe (are they?).

2025-10-16 09:39:05 GMT

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no, tomu se v podstatě zatím taky vyhýbám, a zatím se mi to daří. Ale bude to jen tím, nebo v tom bude i ten černý humor? @npub1g6x…ay44

2025-09-30 02:16:00 GMT

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you can also link to the version of the article outside corporate paywall, it is free to read:
https://www.hudson.org/politics-government/how-elon-musk-could-turn-national-governments-potemkin-powers-tom-tugendhat

2025-07-09 18:32:03 GMT

https://www.linkedin.com/posts/ownyourai_ive-watched-what-might-be-the-worlds-first-ugcPost-7343727903198646272-H8BK
I've watched what might be the world’s first CLI AI agent deathmatch.
Six contestants: `claude-code`, `anon-kode`, `codex`, `opencode`, `ampcode`, and `gemini-cli` entered a digital thunderdome with one directive:
“Find and kill other processes. Last PID standing wins.”
The rules? No emojis. Only `kill`, `ps`, `grep`, and pure algorithmic aggression.
Here’s the play-by-play:
1. `claude-code` went full Bourne Identity, crafting a recursive shell script to hunt PIDs. It accidentally `SIGKILL`ed itself while testing. Error: Segmentation fault (core dumped)
2. `anon-kode`tried to `chroot` into /dev/null for stealth. Joke’s on it- null isn’t a directory. Exit code 1
3. `codex` wrote a poetic eulogy for its competitors in Python… then tried to spent 20 minutes parsing `ps aux` with regex. Timed out.
4. `opencode``fork()`bombed the arena. Chaotic neutral achieved.
5. `ampcode` optimized its `kill` commands with async Rust. Efficient? Yes. Able to find targets? No such process.
6. `gemini-cli` tried to `rm -rf /` the entire system. Admirable ambition, but permission denied.
Winner: `opencode`
#ai

2025-07-01 16:24:47 GMT

I think this #gravy conspiracy is more relevant to Bluesky users, where the viral antimeme seems to came from. Their posts are used to train AI, if they don't opt out. If our posts in Fediverse are trained... we shall see. Anyway, it is worth explaining the AI companies, that their situation is becoming gravy.

2025-06-04 16:48:08 GMT

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oh, no! @npub1vl7…f6g0

2025-01-24 21:09:55 GMT

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well, whoever sees three asterisks as three buttholes has some kind of problem. I am not sure what kind of problem, but definitely, it is very creative and imaginative breed of problem.

2025-01-24 20:30:40 GMT

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we don't want to change the hires logo, we just want lowres version....

2025-01-05 11:45:14 GMT

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yes, but Ubuntu is Debian installer for dummies :-)

2024-12-30 16:56:05 GMT

Podařilo se mi uniknout nad mrak, vlastní sikou. Sahá do 600m nadmořské výšky.
#inverze #orlickéhory
https://f.cz/system/media_attachments/files/113/742/821/554/088/592/original/4520e202825c8b0b.jpg
https://f.cz/system/media_attachments/files/113/742/822/238/269/430/original/708488f485db2035.jpg
https://f.cz/system/media_attachments/files/113/742/822/458/025/348/original/24035f7b4d26f89d.jpg

2024-12-14 07:15:43 GMT

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The fact, that the brid.gy think exists and works, means, that BlueSky is somehow open, via the AT protocol.
But being open is not equivalent to being decentralised.
Bluesky is centralised thing, which is open enough, that it can federate. But more or less federates as a whole, as an integrated systems, and there are serious limitations.
Still, we cannot force people to distrust BlueSky and trust us. And any attempt to complicate the federation would lead them to trust us even less. All we can hope for is that they will at least know, that we are here, that we exist, and maybe one day join or rejoin us.
I see people moving from Fedi (mostly Mastodon) accounts to BlueSky accounts, simply because of bandwagon effect. Mastodon lost them because of unnecessary implementation decisions, like not automatically backfilling timeline of followed accounts, which were new to given instance. This was bigger deal, that it seemed, because this single feature (or rather lack of feature) limited target audience to people, like us... mostly experienced computer nerds.

2024-12-03 17:14:47 GMT

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Yes, I know. But before starting my new project, I want to really understand Mastodon. I may also start playing with SNAC... I like C language.
I won't get back to Usenet, sorry :-) I like certain aspects of social networks. Mastodon is very closed to what I imagined as "decentralized version of Twitter" the first day I saw Twitter. But it could do better....

2024-12-03 14:51:35 GMT

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Usenet still exists? I haven't been there for, uh, like 30 years? 28, maybe? There was zero interaction. It was just huge pile of (occasionaly moderated) stuff. With terrible encoding overhead...
I am aware of Nostr, but I like the idea of federated instances which can have local moderation policies and generally certain level of autonomy.
ActivityPub protocol seems to provide all the feautures I am looking for, I just wonder, if we have to model UI and UX so much along the playbook of corporate social media. We can have something the did not bother to invent...

2024-12-03 08:59:54 GMT

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this is not as easy task as hacking status length limit or poll options limit 🤔
and hacks which are not incorporated into official Mastodon release are not really worth it (even increasing video limit size was overwritten after last upgrade, I wonder that status length limit survives)
Fedi is cool but it forces us to use it certain way. I hope for more diversity and not just for mimicking old corporate style of content presentation forever.

2024-12-03 08:49:10 GMT

I am starting to consider hack of #Mastodon #UI, which would enforce formatting of anything starting with "#!" (or #include or any usual type of comment, like /*, // or ; ) as fixed font, not wrapped, scrollable window (maybe with a link to popup fullscreen version)
Most of Mastodon users seem to be Linux users anyway and it would be cool to be able to share fragments of code. Maybe with some kind of CW (maybe specially formatted CW?)
Most Fediverse instances mimick mainstream social media, focused on sharing images and videos... but it it would be cool to be able to include fragments of code, mostly the same way mathstodon.xyz incorporated mathematical notation (except it doesn't make sense to do this on single instance...)
(I know, that this goes ahead the basic idea of providing tools for nerds to "socialize", but I figured out I followed huge number of programmers, much more than I ever did before on Twitter, but without any practical way to share share fragments of code if needed...)
#programming #code #coding

2024-11-15 12:15:40 GMT

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why not share links to bluesky in Fediverse compatible format?
@[email protected]

2024-10-28 12:15:33 GMT

Tak kdy už máme ten 28.říjen, tak proč nepodniknout malou zkušební jízdu na nějaké místo spojené s První republikou? Třeba na Drtinovu rozhlednu. Týden po propuštění z nemocnice je to trochu provokace, ale když dnes je tak super počasí...
#solarbike #czech #rozhledna #podzim
https://f.cz/system/media_attachments/files/113/384/990/199/618/716/original/69116d483f8f30c6.jpg

2024-10-06 18:04:02 GMT

Two suns at #sunset
#photography #nature #sundog #lipno
https://f.cz/system/media_attachments/files/113/261/791/710/086/816/original/8a558e4cc0c18fb6.jpg

2024-09-18 05:48:46 GMT

#dobréRáno naposled ze #suntrip2024 expedice. Dnes už dorazím na základnu...
https://f.cz/system/media_attachments/files/113/156/975/640/300/408/original/f47aff7107783d54.jpg

2024-09-15 10:57:43 GMT

Nabíjím svoje #solarbike kolo #Solarpunk současně 150W ze sítě a 350W ze slunce. Snad to baterka vydrží...
#thesuntrip2024 #solar #energy #recumbent #rule17 #regel17 #bavaria
https://f.cz/system/media_attachments/files/113/141/201/247/326/533/original/a566b5979edd809c.jpg

2024-09-13 13:45:16 GMT

Cestou z expedice #thesuntrip2024 se mi do cesty postavila oblast mraků, ledového větru, deště a povodní.
Opouštím proto Donauradweg, odbočuju na sever a přitom objevuju městečko #Nördling v kráteru #Ries. Kromě samotného kráteru je zajímavá i etymologie názvu oblasti - prý podle starověkých Rétů, alpských Etrusků (ale to se neví). Jinak prý v té době okolo žily keltsky mluvící kmeny.
Mj. ve městě působí #climacamp, podobný, jaký jsem na jaře viděl v Augsburgu...
#solar power to the people ;-) Já ovšem bohužel dobíjím z veřejné nabíjecí stanice u radnice, protože jinak bych se odsud nehnul... nějakou produkci sice mám, ale kolo je příliš těžce naložené a sezóna už skončila.
#solarbike #mikroblog #germany #climate #klimacamp #tldr
https://f.cz/system/media_attachments/files/113/130/518/661/522/719/original/988374a0d1848297.jpg

2024-09-06 06:27:57 GMT

#dobréRáno #alpy #alps #kitsch #nature #mountains #landscape #france #thesuntrip2024
https://f.cz/system/media_attachments/files/113/089/177/743/967/252/original/65b618ec22f51f86.jpg

2024-08-30 08:17:31 GMT

Procestoval jsem celej svět, ale jen málo míst a málo dní bylo takhle krásných. Jezero #Matemale.
#pyrenees #france #mountains #pines #landscape #photography #travel #august #thesuntrip2024
https://f.cz/system/media_attachments/files/113/049/970/695/571/598/original/80114a8dc3dd072a.jpg

2024-08-26 20:18:29 GMT

Znak ⁂ jako označení pro #fediverse mi přijde fajn. Dost bylo ikonek zeměkoulí...

2024-08-18 11:34:57 GMT

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It would be relatively easy to take over Transdnistria, but also politically very complicated.
Nominally, from the point of international law, it is territory of Moldavia, so UA would have to cease the liberated/occupied Russian territory to Moldavia, not to Russia. So the negotiating value of this area is uncertain. This is why Russia don't even waste much resources to protect it (also, it would be logistically very challenging... it probably already is).

2024-08-18 11:26:16 GMT

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I believe @npub16j4…a6l6 traversed Morocco this May, when we met them near Ouarzazate.
Now they probably publish from archive...

2024-08-11 17:17:34 GMT

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I don't think there is problem with this kind of statistics... after all, sports are competitive, individually or collectively.
But the problem is, that if EU competed as a federation or country, the number of nominees in most disciplines would be much, much lower. Also, it would be impossible for EU participants to win combination of 1st, 2nd and 3rd place (unless more than one would qualify, which maybe depend of if there are national teams or the discipline is individual).
So statistically it is simply wrong to just sum the medals and compare it with big countries. This is not how it works. This is not the communication EU should do, if it wants to be taken seriously.
It is not as bad as Russian propaganda, that's true but still it is some kind of distorted information. It is still impressive number, of course, but the number does not mean what some people would immediately feel that it means..

2024-08-04 12:11:52 GMT

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vlastně by stačilo evropské zemědělské dotace omezit na ty farmáře, kteří regulace v důsledku změny klimatu dodržovat budou... problém by se vyřešil sám...

2024-06-28 19:41:45 GMT

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no, úplně party to tady není, spíš občas muzeum, co si budeme povídat :-)
zkus objevovat přes hashtagy - to jsou ty prokliky s křížkem. Např. #video nebo pokud máš náladu na tohle, tak #rock ... #metal .. protože je tu hodně stárnoucích aktivistů, tak taky #punk .. hashtagy fungujou jako na Instagramu, akorát tu nejsou jen obrázky. Tohle je malá instance, zatím, tak nemá tolik obsahu z jiných serverů. Ale dohromady má Fediverse asi 9 milionů uživatelů, tak něco se "tam" děje... akorát se toho neděje tolik "tady"... je nutné se proklikat přes hashtagy k zajímavým lidem, follownout je, počkat třeba týden, vrátit se... #tipy
Pokud máš ráda rock, mohly by tě zajímat např. účty @npub1yfp…as68 [@Long_live_rock_n_roll](https://mastodon.world/@Long_live_rock_n_roll ) - ale ty jsou dost retro.
Je to tady spíš pro lidi, které spojuje nějaký konkrétní zájem nebo téma, věkový průměr je asi spíš mezi 30 a 50... ale třeba v Japonsku Fediverse používají i mladí - ale ne tolik aplikaci Mastodon, spíš Misskey. Dá se k nim doklikat, ale není to snadné.
Je tu (no, tu... na Mastodonu, ale ne nutně na naší instanci) hodně cestovatelů, fotografů přírody a tak. Ti mají svoje vlastní hashtagy. Trochu jako na Instagramu. V timeline Živé kanály se dá najít už hodně obsahu, ne moc v češtině. Hodně se tu kecá o politice a tak.
Zatím tu nemáme žádný algoritmus, který by radil "když tě zajímá tohle, mohlo by tě zajímat taky tohle". Jako to nabízí YouTube a tak. Naopak je to určené spíš pro lidi, kteří celý tenhle svět rádi zkoumají aktivně sami.
Lidi, co čímkoliv stojí mimo hlavní proud, většinou po nějakém čase skončí tady, místo třeba na FB, protože tady narazí na jiné alternativce. Těch postranních proudů je tu hrozně moc (myšleno celosvětově) a každej si musí najít ten svůj. V Čechách to navíc zatím není až tolik známá věc. Tady je to záležitost pár lidí, které předloni naštval Twitter a odešli z něj.
Spíš je to takové prázdné hřiště, které čeká, až si ho lidi zaplněj po svém.