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Saw this on Mastodon:

https://racingbunny.com/@mookie/114718466149264471

18 rules of Software Engineering

  1. You will regret complexity when on-call
  2. Stop falling in love with your own code
  3. Everything is a trade-off. There’s no ā€œbestā€ 3. Every line of code you write is a liability 4. Document your decisions and designs
  4. Everyone hates code they didn’t write
  5. Don’t use unnecessary dependencies
  6. Coding standards prevent arguments
  7. Write meaningful commit messages
  8. Don’t ever stop learning new things
  9. Code reviews spread knowledge
  10. Always build for maintainability
  11. Ask for help when you’re stuck
  12. Fix root causes, not symptoms
  13. Software is never completed
  14. Estimates are not promises
  15. Ship early, iterate often
  16. Keep. It. Simple.

Solid list, even though 14 is up for debate in my opinion: Software can be completed. You have a use case / problem, you solve that problem, done. Your software is completed now. There might still be bugs and they should be fixed – but this doesn’t ā€œaddā€ to the program. Don’t use ā€œsoftware is never doneā€ as an excuse to keep adding and adding stuff to your code.

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Okay, here’s a thing I like about Rust: Returning things as Option and error handling. (Or the more complex Result, but it’s easier to explain with Option.)

fn mydiv(num: f64, denom: f64) -> Option<f64> {
    // (Let’s ignore precision issues for a second.)
    if denom == 0.0 {
        return None;
    } else {
        return Some(num / denom);
    }
}

fn main() {
    // Explicit, verbose version:
    let num: f64 = 123.0;
    let denom: f64 = 456.0;
    let wrapped_res = mydiv(num, denom);
    if wrapped_res.is_some() {
        println!("Unwrapped result: {}", wrapped_res.unwrap());
    }

    // Shorter version using "if let":
    if let Some(res) = mydiv(123.0, 456.0) {
        println!("Here’s a result: {}", res);
    }

    if let Some(res) = mydiv(123.0, 0.0) {
        println!("Huh, we divided by zero? This never happens. {}", res);
    }
}

You can’t divide by zero, so the function returns an ā€œerrorā€ in that case. (Option isn’t really used for errors, IIUC, but the basic idea is the same for Result.)

Option is an enum. It can have the value Some or None. In the case of Some, you can attach additional data to the enum. In this case, we are attaching a floating point value.

The caller then has to decide: Is the value None or Some? Did the function succeed or not? If it is Some, the caller can do .unwrap() on this enum to get the inner value (the floating point value). If you do .unwrap() on a None value, the program will panic and die.

The if let version using destructuring is much shorter and, once you got used to it, actually quite nice.

Now the trick is that you must somehow handle these two cases. You must either call something like .unwrap() or do destructuring or something, otherwise you can’t access the attached value at all. As I understand it, it is impossible to just completely ignore error cases. And the compiler enforces it.

(In case of Result, the compiler would warn you if you ignore the return value entirely. So something like doing write() and then ignoring the return value would be caught as well.)

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In-reply-to » Just discovered how easy it is to recall my last arg in shell and my brain went 🤯 How come I've never learned about this before!? I wonder how many other QOL shortcuts I'm missing on 🄲

@aelaraji@aelaraji.com I use Alt+. all the time, it’s great. šŸ‘Œ

FWIW, another thing I often use is !! to recall the entire previous command line:

$ find -iname '*foo*'
./This is a foo file.txt

$ cat "$(!!)"
cat "$(find -iname '*foo*')"
This is just a test.

Yep!

Or:

$ ls -al subdir
ls: cannot open directory 'subdir': Permission denied

$ sudo !!
sudo ls -al subdir
total 0
drwx------ 2 root root  60 Jun 20 19:39 .
drwx------ 7 jess jess 360 Jun 20 19:39 ..
-rw-r--r-- 1 root root   0 Jun 20 19:39 nothing-to-see

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In-reply-to » Speaking of Wine, Arch Linux completely fucked up Wine for me with the latest update.

@kat@yarn.girlonthemoon.xyz I guess that qualifies as an ā€œArch momentā€, albeit the first one I encountered. I’m running this since 2008 and it’s usually very smooth sailing. šŸ˜…

@lyse@lyse.isobeef.org Yeah, YMMV. Some games work(ed) great in Wine, others not at all. I just use it because it’s easier than firing up my WinXP box. (I don’t use Wine for regular applications, just games.)

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In-reply-to » OpenBSD has the wonderful pledge() and unveil() syscalls:

@movq@www.uninformativ.de That sounds great! (Well, they actually must have recorded the audio with a potato or so.) You talked about pledge(…) and unveil(…) before, right? I somewhere ran across them once before. Never tried them out, but these syscalls seem to be really useful. They also have the potential to make one really rethink about software architecture. I should probably give this a try and see how I can improve my own programs.

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Speaking of Wine, Arch Linux completely fucked up Wine for me with the latest update.

  • 16-bit support is gone.
  • Performance of 3D games is horrible and unplayable.

Arch is shipping a WoW64 build now, which is not yet ready for prime time.

And then I realized that there’s actually only one stable Wine release per year but Arch has been shipping development releases all the time. That’s quite unusual. I’m used to Arch only shipping stable packages … huh.

Hopefully things will improve again. I’m not eager to build Wine from source. I’d rather ditch it and resort to my real Windows XP box for the little (retro)gaming that I do … 🫤

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In-reply-to » https://threadreaderapp.com/thread/1935344122103308748.html Interesting article on how ChatGPT is rotting your brain 🤣

@prologic@twtxt.net Ahhh, right, my bad, I could have easily found that. 🤦

There’s also a project page which lists some limitations of this study: https://www.media.mit.edu/projects/your-brain-on-chatgpt/overview/

It certainly sounds plausible. ā€œUse it or lose it.ā€

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In-reply-to » Fuck me sideways, Rust is so hard. Will we ever be friends?

@prologic@twtxt.net I’m trying to call some libc functions (because the Rust stdlib does not have an equivalent for getpeername(), for example, so I don’t have a choice), so I have to do some FFI stuff and deal with raw pointers and all that, which is very gnarly in Rust – because you’re not supposed to do this. Things like that are trivial in C or even Assembler, but I have not yet understood what Rust does under the hood. How and when does it allocate or free memory … is the pointer that I get even still valid by the time I do the libc call? Stuff like that.

I hope that I eventually learn this over time … but I get slapped in the face at every step. It’s very frustrating and I’m always this šŸ¤ close to giving up (only to try again a year later).

Oh, yeah, yeah, I guess I could ā€œjustā€ use some 3rd party library for this. socket2 gets mentioned a lot in this context. But I don’t want to. I literally need one getpeername() call during the lifetime of my program, I don’t even do the socket(), bind(), listen(), accept() dance, I already have a fully functional file descriptor. Using a library for that is total overkill and I’d rather do it myself. (And look at the version number: 0.5.10. The library is 6 years old but they’re still saying: ā€œNah, we’re not 1.0 yet, we reserve the right to make breaking changes with every new release.ā€ So many Rust libs are still unstable …)

… and I could go on and on and on … 🤣

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In-reply-to » Come on, why is the bloody IBAN only in the damn HTML part of your e-mail but not in the plain text!? Grrr! Don't you wanna get paid, dealer!? Your new web shop system sucks so bad, I want the old version back.

@movq@www.uninformativ.de Yeah. :-( But hey, there are at least six of us using mail as it should beā„¢. :-)

I sent the dealer an e-mail about that with all sorts of other issues as well. Let’s see if they fix anything of that some day. Or yet just even read it.

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In-reply-to » Come on, why is the bloody IBAN only in the damn HTML part of your e-mail but not in the plain text!? Grrr! Don't you wanna get paid, dealer!? Your new web shop system sucks so bad, I want the old version back.

@lyse@lyse.isobeef.org … because you, me, and that guy over there in the corner are the only three people left using plain-text email. 🫤 (And probably Stallman.)

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OpenBSD has the wonderful pledge() and unveil() syscalls:

https://www.youtube.com/watch?v=bXO6nelFt-E

Not only are they super useful (the program itself can drop privileges – like, it can initialize itself, read some files, whatever, and then tell the kernel that it will never do anything like that again; if it does, e.g. by being exploited through a bug, it gets killed by the kernel), but they are also extremely easy to use.

Imagine a server program with a connected socket in file descriptor 0. Before reading any data from the client, the program can do this:

unveil("/var/www/whatever", "r");
unveil(NULL, NULL);
pledge("stdio rpath", NULL);

Done. It’s now limited to reading files from that directory, communicating with the existing socket, stuff like that. But it cannot ever read any other files or exec() into something else.

I can’t wait for the day when we have something like this on Linux. There have been some attempts, but it’s not that easy. And it’s certainly not mainstream, yet.

I need to have a closer look at Linux’s Landlock soon (ā€œsoonā€), but this is considerably more complicated than pledge()/unveil():

https://landlock.io/

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So I was using this function in Rust:

https://doc.rust-lang.org/std/path/struct.Path.html#method.display

Note the little 1.0.0 in the top right corner, which means that this function has been ā€œstable since Rust version 1.0.0ā€. We’re at 1.87 now, so we’re good.

Then I compiled my program on OpenBSD with Rust 1.86, i.e. just one version behind, but well ahead of 1.0.0.

The compiler said that I was using an unstable library feature.

Turns out, that function internally uses this:

https://doc.rust-lang.org/std/ffi/struct.OsStr.html#method.display

And that is only available since Rust 1.87.

How was I supposed to know this? 🤨🫩

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In-reply-to » @prologic I am finding writing my Notes very therapeutic. Just create a markdown file and commit, push, and it’s live. Whatever comes to mind, whatever I want to keep as relevant. Silly things, more like a dump.

@bender@twtxt.net I know I know! I don’t know why I ever signed up and used it and still continue to pay for the silly thing. Twtxt/Yarn is so much better in every way 🤣

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In-reply-to » @prologic I am finding writing my Notes very therapeutic. Just create a markdown file and commit, push, and it’s live. Whatever comes to mind, whatever I want to keep as relevant. Silly things, more like a dump.

@prologic@twtxt.net yes, I never understood you using micro.blog (and paying for it, nonetheless!). I don’t like it (as a platform), and have an unexplainable dislike for its creator.

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In-reply-to » Great article from Tailscale about how security policies we've often seen in many large complex organizations that we all love to hate don't actually provide the security that we assumed.

@prologic@twtxt.net do you remember Hamachi? Tailscale/Headscale is Hamachi on steroids. They are used primarily for creating a VPN among all your devices so they can talk to one another as if they were on the same LAN, even when they’re not. That was, mostly, my WireGuard usage.

I still have WireGuard running—because it is so lite that it doesn’t matter—to use as regular VPN, but Headscale keeps all my devices connected forming their own ā€œmini-Internetā€ 100% of the time.

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In-reply-to » Great article from Tailscale about how security policies we've often seen in many large complex organizations that we all love to hate don't actually provide the security that we assumed.

@bender@twtxt.net What’s awesome about it btw? I use WireGuard pretty heavily here. And my entire family also use it to keep a VPN connection back to our home network

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In-reply-to » I wanted to port this to Rust as an excercise, but they still have no random number generator in the core library: https://github.com/rust-lang/rust/issues/130703

@prologic@twtxt.net Yeah, it’s difficult, you often don’t get what you’d expect. They also make heavy use of 3rd party libraries. IIUC, for random numbers, they refer to this library. I’ve read many times that the Rust stdlib is intentionally minimalistic (to make it easier to maintain and port and all that).

I’m struggling with this, using 3rd party libs for so many things isn’t really my cup of tea. I’ll probably make my own tiny little ā€œstandard libraryā€. It’s silly, but I don’t see any other options. 🤷

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Lately (since there are AI summaries at the top), each time I Google for the answer to a question, the AI summary has at least a part of the answer wrong. It makes up laws that do not exist, books that were never published - in sum, well written sentences that make linguistic sense, but with made up content.

Let me repeat: each time. Maybe I only search for hard stuff, or fringe stuff, or this some other explanation - but seriously, it’s hard to understand how isn’t Google ashamed of its AI overviews… or not sued under some regulation regarding fake news.

PS: yes, I know, my fault for using Google as a search engine.

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Of Pointlessware and CEOs
Had a moment, to check up on some of the companies, I stopped following, get to The Browser Company and see their newest product - it’s just Chrome, with an AI chat window pop-up and that’s it. Something Canary Chrome, come with already.
I see Theo from T3.gg, making fun of it on YouTube and promoting ā€œhisā€ product - an AI chat app, where you can choose from multiple models, by all the popular AI companies. Something I already have a worse version of, at work and I don’t even use it.
There’s also an interview, about the future of virtual keyboards, surely this is at least actually a real thing and not more pointless horse shit. I check the website of the keyboard SDK, and it’s around 20 identical apps, that just copy the same keyboard SDK/api and slap chatgpt features on top - in the App Store, these are surrounded by chatgpt clones, that just feed the users prompts, into the real thing and put ads, next to the answers.

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[$] Improving iov_iter
The iov_iter interface is used to
describe and iterate through buffers in the kernel. David Howells led a combined storage and
filesystem session at
the 2025 Linux Storage,
Filesystem, Memory Management, and BPF Summit (LSFMM+BPF) to discuss ways
to improve iov_iter. His topic\
proposal listed a few different ideas including replacing some
iov_iter types and possibly allowing mixed types in chains of … ⌘ Read more

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Marines to arrive in LA as ABC camera operator hit by less lethal round during protests
An additional 700 US Marines are expected to reach Los Angeles on Monday night or Tuesday morning, local time, as part of efforts to quell the protests. ⌘ Read more

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Looser gun laws tied to thousands more US child shooting deaths
Issam Ahmed, Ā Staff WriterĀ  - Ā Agence France-Presse / Raw Story

Stephan:Ā The failure of the Democrats and Republicans, and the corrupt Supreme Court MAGAt majority to deal with gun violence in the United States has made death by gunfire the leading cause of nonmedical death. The Trump coup fascists have even gone so far as to legalize functional machine guns in civilian hands.

![](https://www.sc … ⌘ Read more

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Gouverneur kritisiert Trump scharf
Der demokratische Gouverneur von Kalifornien, Gavin Newsom, hat scharfe Kritik an der weiteren Entsendung von Mitgliedern der Nationalgarde und von Marines nach Los Angeles geübt. Die Entscheidung des republikanischen PrƤsidenten Donald Trump sei ā€žgeistesgestƶrtā€œ, so Newsom am Montag (Ortszeit). WƤhrend sich die Lage bei den Protesten gegen Razzien der US-Einwanderungsbehƶrde in der Millionenmetropole beruhigte, kam es in anderen US-StƤdten zu Demonstrationen. ⌘ Read more

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10 Movie Characters Who Make Us Laugh at Unemployment
For one reason or another, most people have been between jobs at some point and experienced the frustration, uncertainty, and various problems that come with unemployment. That’s why movies that deal with being out of work in a lighthearted way can be so appealing. Humorous depictions of what is normally such a stressful time may […]

The post [10 Movie Characters Who Make Us Laugh at Unemployment](https://listverse.com/2025/ … ⌘ Read more

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Alle Mitglieder von Impfgremium entlassen
In den USA hat Gesundheitsminister Robert F. Kennedy Jr. alle Mitglieder eines wichtigen Gremiums (ACIP) von Impfexpertinnen und -experten der US-Seuchenbehƶrde CDC entlassen. Kennedy begründete den Schritt am Montag (Ortszeit) in einem Gastkommentar für das ā€žWall Street Journalā€œ mit angeblichen Interessenkonflikten der Forschenden. Fachleute zeigten sich von der Entscheidung entsetzt. ⌘ Read more

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Ex-military officers raise concerns about ā€˜combat unit’ marines sent to LA
Former US military officers say hundreds of marines deployed to the LA protests are from combat units, which was a drastic move that raises questions about President Donald Trump’s intentions. ⌘ Read more

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ROC-RK3506J-CC Board Integrates RK3506J and Dual LAN Support
The ROC-RK3506J-CC is a compact single-board computer based on Rockchip’s RK3506J processor. Designed for embedded systems with real-time demands, it supports a wide range of I/O and OS options and is available in both industrial and commercial variants. The RK3506J processor includes a tri-core ARM Cortex-A7 cluster alongside a single Cortex-M0 core, fabricated using a […] ⌘ Read more

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been a while! i’ve been using my laptop more to kind of change my workflow, but without my browser bookmarks to remind me to check some sites, i’ve forgotten to check yarnverse! forgive me friends T_T

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The XMPP Standards Foundation: The XMPP Newsletter May 2025

Image

XMPP Newsletter Banner

Welcome to the XMPP Newsletter, great to have you here again!
This issue covers the month of May 2025.

Like this newsletter, many projects and their efforts in the XMPP community are a result of people’s voluntary work. If you are happy with the services and software you may be using, please consider saying thanks or help these projects! Int … ⌘ Read more

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Pentagon entsendet 700 StreitkrƤfte nach LA
Wegen der Proteste gegen die Migrationspolitik von Präsident Donald Trump hat das US-Verteidigungsministerium rund 700 Marineinfanteristen der regulären Streitkräfte nach Los Angeles beordert. Das teilte das zuständige Regionalkommando am Montag mit. ⌘ Read more

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ACT police ā€˜inflamed’ one-third of cases involving use of force, ombudsman finds
Ombudsman Iain Anderson says his investigation has uncovered cases where the police response had ā€œunnecessarily inflamed situationsā€, resulting in poor outcomes. ⌘ Read more

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Live: LA braces for more protests as California files lawsuit against Trump administration
California Governor Gavin Newsom says the state will sue Donald Trump’s administration after the US president deployed the National Guard to handle protests. Follow live. ⌘ Read more

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Live: Wall St inches higher as markets focus on US-China trade talks
Wall Street activity is fairly muted as traders waited for news from the latest round of US-China trade talks. Follow the day’s events and insights from our business reporters on the ABC News live markets blog. ⌘ Read more

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iPadOS 26 with Multitasking Improvements, Menubar, & New Liquid Glass UI
Apple has debuted iPadOS 26 today, complete with some notable new features and changes to the iPad operating system. First to notice is the new numerical versioning system, with iPadOS 26 jumping many version numbers ahead of the current iPadOS 18 version, following a numerical system much like Microsoft used to use for Windows (remember … [Read More](https://osxdaily.com/2025/06/09/ipado … ⌘ Read more

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Why walking through this artist’s home is an unforgettable experience
Jungle could once paint around 100 works in one sitting. Today he might be a little slower, but his joyful expression on canvas hasn’t diminished a bit. ⌘ Read more

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[$] Improving Fedora’s documentation
At Flock,
Fedora’s annual developer conference, held in Prague from JuneĀ 5
to JuneĀ 8, two members of the Fedora\
documentation team, Petr Bokoč and Peter Boy, led a\
session on the state of Fedora documentation. The pair covered a
brief history of the project’s documentation since the days of [FedoraĀ CoreĀ 1](https://lwn.net/Articles/56036/ … ⌘ Read more

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Selling a home in Australia is getting more expensive — one company controls most listings
It can cost thousands to list a property online for sale. The competition regulator has stepped in after years of complaints that REA Group is using its dominant position to the detriment of home sellers and real estate agents. ⌘ Read more

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California to sue Trump administration as LA braces for more protests
Governor Gavin Newsom says the US president ā€œflamed the firesā€ and has demanded he withdraw his order to deploy 2,000 National Guard troops to Los Angeles. ⌘ Read more

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Newsom kündigt Klage gegen Trump an
Der Streit von Kalifornien und dessen demokratischem Gouverneur Gavin Newsom mit US-Präsident Donald Trump spitzt sich zu. Nachdem Trump wegen Protesten gegen seine Einwanderungspolitik bzw. gegen Razzien der US-Einwanderungsbehörde ICE die Nationalgarde nach Los Angeles geschickt hatte, kündigte Newsom eine Klage an. Er sprach von einer bewussten Inszenierung: Trump setze sich über geltendes Recht hinweg. Trump wiederum zeigte sich einer möglichen Festnahme Newsoms aufgeschlossen. ⌘ Read more

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Neo-Nazi group ā€˜actively seeking to grow in US’ with planned paramilitary training event
Ben Makuch, Ā ReporterĀ  - Ā The Guardian (U.K.)

_Stephan:Ā As with all authoritarian fascist regimes, civil violence, sanctioned and official, the Gestapo, and unofficial but supportive of the regime arises. ThatĀ  is just what is happening as aspiring dictator Trump creates a federal. military presence in the streets of Los Angeles, following days of Tru … ⌘ Read more

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Supreme Court tosses Mexico’s lawsuit against American gun manufacturers
Josh Gerstein, Ā Staff WriterĀ  - Ā Politico

_Stephan:Ā In Mexico, the drug cartels use American-made weapons for their crimes, and the Mexican government wanted to have the gun companies that make these weapons, knowingly being sold in Mexico – note they even have Spanish language sayings and graphics carved or etched on the weapons – held responsible. Sadly, in the United States, i … ⌘ Read more

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