Hello World in C Without Linking in Libraries
If there’s one constant with software developers, it is that sometimes they get bored. At these times, they tend to think dangerous thoughts, usually starting with ‘What if…’. Next you know, they have gone down a dark and winding rabbit hole and found themselves staring at something so amazing that the only natural conclusion that comes to mind is that while educational, it serves no immediate purpose.
The idea of applying this to snipping out the <stdio.h> header in C and the printf() function that it provides definitely is a good example here. Starting from the typical Hello World example in C, [Old Man Yells at Code] over at YouTube first takes us from the standard dynamically linked binary at a bloated 16 kB, to the statically linked version at an eyepopping 767 kB.
To remove any such dynamic linkages, and to keep file sizes somewhat sane, he then proceeds to first use the write()function from the <unistd.h> header, which does indeed cut out the <stdio.h> include, before doing the reasonable thing and removing all includes by rewriting the code in x86 assembly.
While this gets the final binary size down to 9 kB and needs no libraries to link with, it still performs a syscall, after setting appropriate register values, to hand control back to the kernel for doing the actual printing. If you try doing something similar with syscall(), you have to link in libc, so it might very well be that this is the real way to do Hello World without includes or linking in libraries. Plus the asm keyword part of C, although one could argue that at this point you could just as well write everything in x86 ASM.
Of course, one cannot argue that this experience isn’t incredibly educational, and decidedly answers the original ‘What if…’ question.
youtube.com/embed/gVaXLlGqQ-c?…
10 Cent Microcontroller Makes Tracker Music
We are absurdly spoiled these days by our microcontrollers. Take the CH32V00X family– they’ve been immortalized by meme as “the ten cent micro” but with a clock speed of 48MHz and 32-bit registers to work with, they’re astoundingly capable machines even by the standards of home computers of yore. That’s what motivated [Tim] to see if he could use one to play MOD files, with only minimal extra parts– and quite specifically no DAC.
Well, that’s part of what motivated him. The other part was seeing Hackaday feature someone use a CH32V003 making chiptune-like beeps. [Tim] apparently saw that post as a gauntlet thrown down, and he picked it up with an even smaller chip: the CH32V002, which he proceeded to turn into a MOD player. For those of you who slept through 80s and early 90s (or for those precocious infants reading this who hadn’t then yet been born), MOD files are an electronic music format, pioneered on the Amiga home computers. Like MIDI, the file specifies when to play specific voices rather than encoding the sound directly. Unlike MIDI, MOD files are self-contained, with the samples/voices used being stored inside the file. The original version targeted four-channel sound, and that’s what [Tim] is using here.
As you can see from the demo video, it sounds great. He pulled it off by using the chip’s built-in PWM timer. Since the timer’s duty cycle is determined by a variable that can be changed by DMA, the CPU doesn’t end up with very much to do here. In the worst case, with everything in flash memory instead of SRAM, the CPU is only taxed at 24%, so there’s plenty of power to say, add graphics for a proper demo. Using the existing MODPlay Library, [Tim]’s player fits into 4kB of memory, leaving a perfectly-usable 12kB for the MOD file. As far as external components needed, it’s just an RC filter to get rid of PWM noise.
[Tim] has put his code up on GitHub for anyone interested, and has perhaps inadvertently cast down another gauntlet for anyone who wants to use these little RISC V microprocessors for musical tasks. If you can do better, please do, let us know.
youtube.com/embed/IQmQ0Qlt3V8?…
James Senese, se ne va il grande sassofonista che parlava al popolo
@Giornalismo e disordine informativo
articolo21.org/2025/10/james-s…
“Che succede dentro me”? Quando penso alla mia periferia, con le sue strade larghe, i vecchi, antichi, decadenti palazzi, che salutano inferociti le giovani, malandate vele
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L'allarme dell'automotive: "Senza i chip Nexperia stop imminente della produzione".
Acea denuncia la "controversia politica irrisolta" che mette a rischio la produzione europea: l'interruzione delle linee di assemblaggio "potrebbe essere questione di giorni".Simone De La Feld @SimoneDeLaFeld1 (Eunews)
Supercon 2025 Badge Gets Vintage Star Trek Makeover
There are still a few days before the doors open on this year’s Hackaday Supercon in Pasadena, but for the most dedicated attendees, the badge hacking has already begun…even if they don’t have a badge yet.
By referencing the design files we’ve published for this year’s Communicator badge, [Thomas Flummer] was able to produce this gorgeous 3D printed case that should be immediately recognizable to fans of the original Star Trek TV series.Metal hinge pin? Brass inserts? Scotty would be proud.
Although the layout of this year’s badge is about as far from the slim outline of the iconic flip-up Trek communicator as you can get, [Thomas] managed to perfectly capture its overall style. By using the “Fuzzy Skin” setting in the slicer, he was even able to replicate the leather-like texture seen on the original prop.
Between that and the “chrome” trim, the finished product really nails everything Jadzia Dax loved about classic 23rd century designs. It’s not hard to imagine this could be some companion device to the original communicator that we just never got to see on screen.
While there’s no denying that the print quality on the antenna lid is exceptional, we’d really like to see that part replaced with an actual piece of brass mesh at some point. Luckily, [Thomas] has connected it to the body of the communicator with a removable metal hinge pin, so it should be easy enough to swap it out.
Considering the incredible panel of Star Trek artists that have been assembled for the Supercon 2025 keynote, we imagine this won’t be the last bit of Trek-themed hacking that we see this weekend — which is fine by us.
FLOSS Weekly Episode 853: Hardware Addiction; Don’t Send Help
This week Jonathan and Rob chat with Cody Zuschlag about the Xen project! It’s the hypervisor that runs almost everywhere. Why is it showing up in IoT devices and automotive? And what’s coming next for the project? Watch to find out!
- xenproject.org/
- devrel.codyfactory.eu/feed//
- linkedin.com/in/cody-zuschlag/
- xenproject.org/contribute/ci/s…
youtube.com/embed/z1bXf5mTzcY?…
Did you know you can watch the live recording of the show right on our YouTube Channel? Have someone you’d like us to interview? Let us know, or have the guest contact us! Take a look at the schedule here.
play.libsyn.com/embed/episode/…
Direct Download in DRM-free MP3.
If you’d rather read along, here’s the transcript for this week’s episode.
Places to follow the FLOSS Weekly Podcast:
Theme music: “Newer Wave” Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
hackaday.com/2025/10/29/floss-…
2025 Component Abuse Challenge: The Opto Flasher
There’s a part you’ll find in almost every mains powered switch mode power supply that might at first appear to have only one application. An optocoupler sits between the low voltage and the high voltage sides, providing a safely isolated feedback. Can it be used for anything else? [b.kainka] thinks so, and has proved it by making an optocoupler powered LED flasher.
If a part can be made to act as an amplifier with a gain greater than one, then it should also be possible to make it oscillate. We’re reminded of the old joke about it being very easy to make an oscillator except when you want to make one, but in this case when an optocoupler is wired up as an inverting amplifier with appropriate feedback, it will oscillate. In this case the rather large capacitor leading to a longish period, enough to flash an LED.
We like this circuit, combining as it does an unexpected use for a part, and a circuit in which the unusual choice might just be practical. It’s part of our 2025 Component Abuse Challenge, for which you just about still have time to make an entry yourself if you have one.
☠️ “Hack the System – At Least a Little”: Why Precision Matters in the 21st Century
A journalistic and editorial assessment of the presentation by Schoresch Davoodi (Pirate Party) at the Hack the Promise Festival 2025, Basel
Where does freedom end when algorithms decide? How do you hack power without taking it over? These core questions were the focus of this year’s “Hack the Promise 2025.” A highlight: the keynote speech by Schoresch Davoodi, Board Member of the Pirate Party International (PPI), who redefined the attitude of the “Hacker” – as a necessary tool for democratic resilience.
From Radical Upheaval to Precision: The New Hacker Stance
by Schoresch Davoodi
In his presentation, Davoodi spanned the arc from the idealised freedom myths of the turn of the millennium (from “The Matrix” to net culture) to the present, where sovereignty over technology and discourses is fiercely contested.
While the revolutionary dreams of a fresh start and radical upheaval, Davoodi posits that the attitude of the hacker is paramount today:
“Only those who understand systems can safely change them – and preserve freedom within them.”
The core message: True change doesn’t need “arsonists,” but people who understand, analyse, and deliberately improve existing systems, rather than just tearing them down. Anyone serious about political change must endure complexity – and face new challenges with the spirit of the Enlightenment: Sapere aude – dare to use your own understanding.
Between Filter Bubble and Digital Attack
The threats to democracy are more diverse than ever in 2025: Digital violence, disinformation, and targeted manipulation are not just isolated incidents but systematically undermine the foundations of democracy.
Davoodi warned not only against the lure of authoritarian simplifications but also against a “dogma-driven politics” within progressive movements. A critical perspective was directed at the role of NGOs, think tanks, and activist networks:
- The Filter Bubble Effect: Those who conduct debates only through their own “filter bubble” risk narrowing plurality instead of courageously expanding it.
- The Demand: Those who remain critically aware of their own filters protect democratic diversity and self-determination.
The “Inner Hack”: More Than Just Net Policy
How must this hacker ethos become politically concrete? Davoodi outlined a practice that goes beyond mere symbolic politics:
| Hacker Practice | Political Implementation |
| Precision | Carefully formulated, relatable motions instead of purely demonstrative symbolic politics. |
| Openness | Establishment of open debate spaces that allow risk-benefit analyses and do not become paralysed by moral grandstanding. |
| Collaboration | Cross-border cooperation, as practiced within the framework of Pirate Parties International. |
The “inner hack” thus means: enduring complexity, opposing propaganda, and viewing maturity and resilience as central political tools. That is democracy in action.
Conclusion: The Small Hack for Great Freedom
Schoresch Davoodi’s presentation is not a manifesto for upheaval, but an invitation to enlightened further thought. In the face of global uncertainties and hybrid threats, the Pirate Party 2025 is increasingly focusing on resilience, strengthening critical infrastructures, and a democratically legitimised security architecture – expressly without serving authoritarian tendencies.
The future belongs to those who have the courage to work on systems precisely, objectively, and openly – and never lose sight of freedom as a core value.
Key Quote: “The revolutionary dreams of a blank slate; the hacker repairs the existing system with precision and courage.”
In this spirit: Hack the System. At least a little – whenever it is most urgently needed.
Would you like me to summarise this British English article into a short, punchy version suitable for a social media post?
9th Global Conference on Illegal Finance and Crypto
The following is a report from PPI´s representative at the United Nations Office of Vienna, Mr. Kay Schroeder, who attended the UNODC Conference on Illegal Finance and Crypto.
Reflections from the 9th Global Conference on Criminal Finance and Crypto – UN Vienna
Yesterday I attended the 9th Global Conference on Criminal Finance and Crypto, hosted at the
United Nations in Vienna with support from UNODC. While no official UN representatives were
present, the event offered a revealing glimpse into how private sector challenges—particularly those
surrounding crypto finance—are increasingly reframed as matters of public concern.
The conference celebrated the growing institutional acceptance of crypto assets, shifting the
narrative from speculative private losses to regulated public affairs. This reframing was not just
semantic—it was strategic. Legal frameworks now position crypto as a legitimate asset class,
despite its origin as replicable code. The symbolic elevation of crypto into the realm of public
policy raises fundamental questions about value, legitimacy, and institutional responsibility.
At its core, blockchain technology is designed to reduce transaction costs. Its native tokens—like
BNB on the Binance Smart Chain—are meant to facilitate efficiency, not store value. Yet the market
treats these tokens as assets, creating artificial scarcity and speculative value.
This contradiction was starkly illustrated during a presentation by Francesco Venditti, who proudly described the
seizure of BNB as a value store, while simultaneously labeling a lesser-known BEP-20 token as a
rug pull. Ironically, the logic of blockchain suggests the opposite: BNB should devalue with
increased use, while any token’s value depends on its legal and economic framing.
The deeper issue lies in the off-chain dominance of crypto transactions—estimated at 80–90%—
which undermines the transparency and decentralization that blockchain promises. Centralized
exchanges (CEXs) and DeFi platforms act as both gatekeepers and service providers, facilitating
flows that often bypass the very technology they claim to represent. This dual role complicates
efforts to combat illicit finance, especially when the same actors who enable laundering also claim
to fight it.
Stablecoins deserve particular scrutiny. Pegged 1:1 to fiat currencies, they are technically simple
tokens maintained off-chain. They are not cryptocurrencies in the traditional sense, but rather
symbolic representations of fiat value. Their presence in blockchain ecosystems injects artificial
stability into systems designed to devalue through scalability. In this sense, stablecoins function as
Trojan horses—vehicles through which the fiat system reasserts control over decentralized
infrastructure.
The economic implications are profound. Blockchain tokens represent a new category of economic
goods—ones that devalue with increased use. This defies conventional market logic, where utility
and demand typically reinforce value. If transaction costs approach zero, and those costs are tied to
the token itself, then the token’s value must also approach zero. Yet institutional actors continue to
frame these tokens as stores of value, creating a performative economy that contradicts its own
technological foundations.
During the conference, I posed a question to the panel of lawmakers and lobbyists exploring
solutions to “illegal finance and crypto”:
“What is your opinion on forbidding stablecoins to remove the artificial valuation of
blockchain tokens, which naturally devalue due to scaling requirements?”
The question remains open. But the conversation is shifting—from retail scams to structural
manipulation, from private speculation to public framing. As crypto continues its institutional
ascent, we must remain vigilant about the symbolic and economic contradictions embedded in its
architecture.”
a causa di questo governo un'opera utile come il ponte a rischio.
La Corte dei Conti boccia il Ponte sullo Stretto. Meloni attacca: 'Ennesimo atto di invasione dei giudici' - Notizie - Ansa.it
I magistrati contabili: 'No al visto di legittimità'. Le motivazioni entro 30 giorni. Salvini: 'Scelta politica, andiamo avanti'. Schlein contro la premier: 'Vuole mettersi al di sopra delle leggi' (ANSA)Agenzia ANSA
che possiamo fare per evitare iscrizioni per usare l'hardware che compriamo?
pur avendoli pagati cari e amari per poterli utilizzare devo iscrivermi con nome, cognome e accesso al mio deretano peloso, altrimenti posso usarli solo come fermaporte.
Ma non gli bastano i bei soldoni che gli ho dato?
Boh, mi sa che torno a carta e penna.
Il nuovo video di Pasta Grannies: youtube.com/watch?v=_S-7VfwGSb…
@Cucina e ricette
(HASHTAG)
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#Gaza, la tregua che non c'era
Gaza, la tregua che non c’era
Il regime di Netanyahu è tornato formalmente a rispettare il cessate il fuoco mercoledì pomeriggio dopo parecchie ore di intensi bombardamenti sulla striscia di Gaza, ordinati dal primo ministro/criminale di guerra a seguito di presunte violazioni da…www.altrenotizie.org
📢 Hannah Jadagu – Describe:
Eremita in una foresta incantata, per Hannah Jadagu il tempo smette di scorrere mentre scrive un album catartico, arrivato da un altra dimensione per scavarci dentro.
reshared this
Giornalisti nel mirino, il report di Ossigeno
Servizio di Greta Giglio e Leonardo Macciocca
L'articolo Giornalisti nel mirino, il report di Ossigeno su Lumsanews.
Universitaly: università & universitari reshared this.
Qui il video ▶️ youtube.com/watch?v=LVmAOa_vcd…
Qui l’infografica ▶️ unica.istruzione.
Ministero dell'Istruzione
Sicurezza delle password, questo il tema del primo appuntamento con #Sicurnauti. Scopri i contenuti dedicati a studenti e genitori su #UNICA. Qui il video ▶️ https://www.youtube.com/watch?v=LVmAOa_vcdg Qui l’infografica ▶️ https://unica.istruzione.Telegram
Zivilgesellschaft: Kritik an Debatte um „Missbrauch von Sozialleistungen“
In Echtzeit: US-Abschiebebehörde ICE baut Überwachungsarsenal weiter aus
Ecco perché dall’Artico arrivano le nuove sfide della competizione globale
@Notizie dall'Italia e dal mondo
La prima Conferenza nazionale sull’Artico, promossa dal sottosegretario di Stato alla Difesa, Isabella Rauti, ha raccolto al Centro alti studi per la Difesa (Casd) esponenti delle istituzioni, delle Forze armate, del mondo diplomatico e scientifico. L’obiettivo, riconoscere
Notizie dall'Italia e dal mondo reshared this.
“The shameless use of covert recording technology at massage parlours to gain likes, attention, and online notoriety is both disgusting and dangerous.”#News #ballotinitiatives #1201
Breaking News Channel reshared this.
The Internet of Agents based on Large Language Models
Le notizie dal Centro Nexa su Internet & Società del Politecnico di Torino su @Etica Digitale (Feddit)
A TIM-financed project which aims to address the technological, economic, political and social impacts of the widespread diffusion and use of agentic AI tools.
The post The Internet of Agents based on Large Language Models appeared
Etica Digitale (Feddit) reshared this.
Il prezzo del rame in Ecuador: la lotta per la sopravvivenza del popolo shuar arutam
@Notizie dall'Italia e dal mondo
Indice La versione originale di questo articolo è stata pubblicata su Arcc foundation, in lingua inglese. La traduzione è a cura dell’autore. «Noi, gli shuar, siamo un popolo guerriero. Da migliaia di anni, viviamo nella foresta che scende dalle
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fnsi.it/giornalisti-minacciati…
FREE ASSANGE Italia
FNSI - Giornalisti minacciati, nel 2025 casi aumentati del 78% https://www.fnsi.it/giornalisti-minacciati-nel-2025-casi-aumentati-del-78Telegram
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EDRi-gram, 29 October 2025
What has the EDRi network been up to over the past few weeks? Find out the latest digital rights news in our bi-weekly newsletter. In this edition: we're pondering digital fairness, budget cuts for the Austrian DPA and more.
The post EDRi-gram, 29 October 2025 appeared first on European Digital Rights (EDRi).
Tutte le mosse di Nvidia con Nokia, Stellantis e Uber
L'articolo proviene da #StartMag e viene ricondiviso sulla comunità Lemmy @Informatica (Italy e non Italy 😁)
Nvidia investirà 1 miliardo di dollari in Nokia, diventandone la seconda maggiore azionista e collaborandovi per lo sviluppo del 6G. Inoltre, la società di semiconduttori e piattaforme software svilupperà auto a guida autonoma con Stellantis e Uber.
Informatica (Italy e non Italy 😁) reshared this.
Massacri e pulizia etnica in Darfur, le Rsf conquistano El-Fasher con il sangue
@Notizie dall'Italia e dal mondo
Dopo 550 giorni di assedio, le RSF conquistano El-Fasher: civili massacrati, ospedali saccheggiati e la popolazione intrappolata tra fame e terrore
L'articolo Massacri e pulizia etnica in Darfur, le Rsf conquistano El-Fasher con il sangue proviene da
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Della Loggia, Zanon, Cangini. Ecco chi dice “si” alla riforma della giustizia
@Politica interna, europea e internazionale
L'articolo Della Loggia, Zanon, Cangini. Ecco chi dice “si” alla riforma della giustizia proviene da Fondazione Luigi Einaudi.
Politica interna, europea e internazionale reshared this.
I “potenti attacchi” su Gaza ordinati da Netanyahu hanno ucciso 100 palestinesi
@Notizie dall'Italia e dal mondo
Lo riferiscono fonti degli ospedali di Gaza. Tra i morti 24 bambini e ragazzi. Decine di feriti. Ucciso un riservista israeliano
L'articolo I “potenti attacchi” su Gaza ordinati da Netanyahu hanno ucciso 100 palestinesi proviene da Pagine Esteri.
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Usa: contanti e shutdown: la spesa negata ai meno abbienti - Diogene Notizie
diogenenotizie.com/usa-contant…
Shutdown USA e casse «solo carta»: se sussidi si fermano e il contante sparisce, il supermercato diventa un confine
La Puglia verso le regionali: le politiche anti-Xylella sono davvero la soluzione?
@Politica interna, europea e internazionale
Mentre in Puglia andava in scena il solito valzer politico — tra veti incrociati e candidature di Nichi Vendola, Michele Emiliano e Antonio De Caro — la regione bruciava. Dall’inizio di giugno a metà agosto sono andati in cenere quasi 10.000 ettari di vegetazione,
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Studenti manganellati, giornalisti intimiditi, giudici attaccati: il fascismo è tornato? (di R. Parodi)
@Politica interna, europea e internazionale
Ingenui? Distratti? Complici più o meno coscienti? In malafede? Non so davvero come definire i tanti, troppi intellettuali, giornalisti, politici – che si ostinano a dire che il fascismo non c’è più. Purtroppo il fascismo è tornato di prepotenza fra
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freezonemagazine.com/rubriche/…
La famiglia è, senza ombra di dubbio, uno dei film emblematici della capacità, che abbiamo già incontrato, del cinema italiano della sua epoca d’oro (diciamo tra la fine degli anni ’40 e fino alle migliori proposte degli anni ’80), ma con alcune successive propaggini eccellenti, di saper ricostruire con grande pertinenza, sotto il velo della […]
L'articolo La famiglia proviene da FREE ZONE MAGAZI
La famiglia è, senza ombra di
Trentennio
@Politica interna, europea e internazionale
Da garantista che sa di non avere nessuna alternativa al credere nella giustizia, avrei una supplica da rivolgere al sindacato dei magistrati, la loro Associazione nazionale: evitate quel che avvicina al profilo del politicante televisivo, bisognoso di parlare più velocemente di quel che serve a pensare. Si possono sostenere tesi diverse, senza per questo far […]
L'articolo
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marcoboccaccio
in reply to Andrea R. • • •Io pensavo che fosse tutto registrato sul dispositivo e invece nemmeno nell'account, a cui ora non posso più accedere su pc se non passando da quello Feltrinelli.