My mate and I went on a hike earlier. Yesterday, we had lovely 12°C. But today, it was down to at most 4°C. Oh well. At least the sun was out and and there was just a tiny bit of wind. We knew upfont that scarf, beanie and gloves were mandatory. Especially at the more windy sections like up top the hills. The view was absolutely terrible, but we made the best of it.

With the sun shining on us during our lunch break at a forest edge bench, we still enjoyed the lookout in 01. I brought some old carpet scraps to sit on and was happily surprised that they isolated even better than I had hoped for. Some hot tea helped us staying warm.

After five hours we returned just after sunset. I’m quite tired now, completely out of shape.

https://lyse.isobeef.org/waldspaziergang-2026-01-17/

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In-reply-to » @movq I still think that your original domain is cool as fuck! :-)

@lyse@lyse.isobeef.org (At least I didn’t break all the links again. In late 2015, I switched from a PHP backend to the current static website, which changed just about everything. I hope doing a disruptive change like this one every 10 years is tolerable. šŸ˜…)

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So, are you guys up for an experiment?

I’m really not happy with the domain ā€œuninformativ.deā€ anymore. I’m going to switch to ā€œmovq.deā€ soon (or maybe something else if I get another fancy idea).

If I keep the url = field in my twtxt file, nothing should break, right? Right? 🤣

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In-reply-to » https://github.com/unix-v4-commentary/unix-v4-source-commentary

Wow, as I anticipated, this is waaay out of my capabilities to really understand it. But I’m quite happy to just have spotted a mistake in an explanatory comment in section 4.5.2 ā€œThe icode Arrayā€. Of course, it should be /e + tc + /i + ni + t\0. Let’s hope that my e-mail with the patch actually makes it into Briam’s inbox. I fear GMail just hides it in the spam folder.

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I recently got an email with this byte sequence:

\xf0\x9f\x8e\x81\xf0\x9f\x95\xaf\xef\xb8\x8f

That’s U+1F381, U+1F56F, U+FE0F. The last one is a ā€œvariation selectorā€:

https://unicodeplus.com/U+FE0F

My toolkit renders this incorrectly – and so do tmux and GNU screen.

Unicode ain’t easy. 🄓

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In-reply-to » https://github.com/unix-v4-commentary/unix-v4-source-commentary

/me clones the repository, calls gemini-cli, and asks for an executive summary. Gemini-CLI replies ā€œDon’t bother!ā€ LOL.

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In-reply-to » Btw @movq you've inspired me to try and have a good 'ol crack at writing a bootloader, stage1 and customer microkernel (µKernel) that will eventually load up a Mu (µ) program and run it! 🤣 I will teach Mu (µ) to have a ./bin/mu -B -o ... -p muos/amd64 ... target.

@prologic@twtxt.net Tada! Maybe one day I might look into this lowlevel stuff, too. But I can’t see it on the horizon yet. Happy hacking! :-)

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In-reply-to » Btw @movq you've inspired me to try and have a good 'ol crack at writing a bootloader, stage1 and customer microkernel (µKernel) that will eventually load up a Mu (µ) program and run it! 🤣 I will teach Mu (µ) to have a ./bin/mu -B -o ... -p muos/amd64 ... target.

@prologic@twtxt.net I’d love to take a look at the code. šŸ˜…

I’m kind of curious to know how much Assembly I need vs. How much of a microkernel can I build purely in Mu (µ)? šŸ¤”

Can’t really answer that, because I only made a working kernel for 16-bit real mode yet. That is 99% C, though, only syscall entry points are Assembly. (The OpenWatcom compiler provides C wrappers for triggering software interrupts, which makes things easier.)

But in long mode? No idea yet. šŸ˜… At least changing the page tables will require a tiny little bit of Assembly.

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In-reply-to » Btw @movq you've inspired me to try and have a good 'ol crack at writing a bootloader, stage1 and customer microkernel (µKernel) that will eventually load up a Mu (µ) program and run it! 🤣 I will teach Mu (µ) to have a ./bin/mu -B -o ... -p muos/amd64 ... target.

I’m kind of curious to know how much Assembly I need vs. How much of a microkernel can I build purely in Mu (µ)? šŸ¤”

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In-reply-to » Btw @movq you've inspired me to try and have a good 'ol crack at writing a bootloader, stage1 and customer microkernel (µKernel) that will eventually load up a Mu (µ) program and run it! 🤣 I will teach Mu (µ) to have a ./bin/mu -B -o ... -p muos/amd64 ... target.

I’ve only got a handful of syscalls working right now. Taking inspiration from the calling convention of the Linux kernel and even made the service/interrupt handler int 0x80h 🤣 I’ve only got read, write, alloc and exit working righ tnow 🄲

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In-reply-to » Btw @movq you've inspired me to try and have a good 'ol crack at writing a bootloader, stage1 and customer microkernel (µKernel) that will eventually load up a Mu (µ) program and run it! 🤣 I will teach Mu (µ) to have a ./bin/mu -B -o ... -p muos/amd64 ... target.

@movq@www.uninformativ.de Yes!

Did you do the whole dance with BIOS boot and everything?

Yup! Fark’n LBA shit and all, loading up the GDT, TSS and switching to x86_64 long mode 🤣

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In-reply-to » Btw @movq you've inspired me to try and have a good 'ol crack at writing a bootloader, stage1 and customer microkernel (µKernel) that will eventually load up a Mu (µ) program and run it! 🤣 I will teach Mu (µ) to have a ./bin/mu -B -o ... -p muos/amd64 ... target.

@prologic@twtxt.net Damn, nice! I know exactly what you mean – the output/screenshot looks trivial, but there’s so much going on behind the scenes. 😃

Did you do the whole dance with BIOS boot and everything?

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In-reply-to » Btw @movq you've inspired me to try and have a good 'ol crack at writing a bootloader, stage1 and customer microkernel (µKernel) that will eventually load up a Mu (µ) program and run it! 🤣 I will teach Mu (µ) to have a ./bin/mu -B -o ... -p muos/amd64 ... target.

Whohoo! 🄳 You have no idea how great a feeling this is! This includes the Mu stdlib and runtime as well, not just some simple stupid program, this means a significant portion of the runtime and stdlib ā€œjust worksā€ā„¢ 🤣

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Btw @movq@www.uninformativ.de you’ve inspired me to try and have a good ā€˜ol crack at writing a bootloader, stage1 and customer microkernel (µKernel) that will eventually load up a Mu (µ) program and run it! 🤣 I will teach Mu (µ) to have a ./bin/mu -B -o ... -p muos/amd64 ... target.

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@kiwu@twtxt.net problems are aplenty everywhere, Kiwu. As we all know, ups and downs flare often times when we least expect them. When downs come, don’t despair: nothing lasts forever, and ups will soon come, one way or another. Pa’lante!

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Took me nearly all week (in my spare time), but Mu (µ) finally officially support linux/amd64 🄳 I completely refactored the native code backend and borrowed a lot of the structure from another project called wazero (the zero dependency Go WASM runtime/compiler). This is amazing stuff because now Mu (µ) runs in more places natively, as well as running everywhere Go runs via the bytecode VM interpreter šŸ¤ž

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In-reply-to » Here am I looking at the different tcell.Key constants and typing different key combinations in the terminal to see the generated tcell.EventKeys in the debug log. Until I pressed Ctrl+Alt+Backspace… :-D Yep, suddenly there went my X…

@movq@www.uninformativ.de I guess so, yes. I read something about that in some ticket. In v3 the terminfo support was dropped, though. I’m still on v2 at the moment.

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In-reply-to » Here am I looking at the different tcell.Key constants and typing different key combinations in the terminal to see the generated tcell.EventKeys in the debug log. Until I pressed Ctrl+Alt+Backspace… :-D Yep, suddenly there went my X…

@lyse@lyse.isobeef.org … I sure hope that they generate these files from the general terminfo database instead of maintaining their own DB. 😳

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In-reply-to » Some work on the menu system to brighten my mood a little bit. No mouse support yet.

@bender@twtxt.net I’m already using it for tracktivity (meant for tracking activities and events, like weather, food consumption, stuff like that), which is basically a somewhat-fancy CSV editor:

https://movq.de/v/f26eb836ee/s.png

I have a couple of other projects where I could use it, because they are plain curses at the moment. Like, one of them has an ā€œedit boxā€, but you can’t enter Unicode, because it was too complicated. That would benefit from the framework.

Either way, it’s the most satisfying project in a long time and I’m learning a ton of stuff.

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In-reply-to » Here am I looking at the different tcell.Key constants and typing different key combinations in the terminal to see the generated tcell.EventKeys in the debug log. Until I pressed Ctrl+Alt+Backspace… :-D Yep, suddenly there went my X…

@movq@www.uninformativ.de Yeah, I know that terminals are super weird and messy. In both the KDE Konsole (identifying itself as TERM=xterm-256color) and xterm (TERM=xterm) it just works flawlessly. My urxvt (TERM=rxvt-unicode-256color) just doesn’t. I also tried messing with TERM in urxvt, but no luck so far.

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In-reply-to » Here am I looking at the different tcell.Key constants and typing different key combinations in the terminal to see the generated tcell.EventKeys in the debug log. Until I pressed Ctrl+Alt+Backspace… :-D Yep, suddenly there went my X…

@lyse@lyse.isobeef.org Unix terminals are quite limited in that regard. 🫤 You know how Ctrl works? The XOR 0x40 thing? And Alt doesn’t exist at all, it’s just a prefixed ESC byte.

I was surprised to see curses knowing about ā€œShift+Tabā€, wondering how that is supposed to work. Well, it’s an escape sequence, of course (depending on the terminal, of course).

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In-reply-to » Here am I looking at the different tcell.Key constants and typing different key combinations in the terminal to see the generated tcell.EventKeys in the debug log. Until I pressed Ctrl+Alt+Backspace… :-D Yep, suddenly there went my X…

Well, in Xterm, I actually do get key combinations with the Shift modifier. Also, combinations of several modifiers just work exactly as I expect. But not in URXvt. Hmm.

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Here am I looking at the different tcell.Key constants and typing different key combinations in the terminal to see the generated tcell.EventKeys in the debug log. Until I pressed Ctrl+Alt+Backspace… :-D Yep, suddenly there went my X…

So far, it appears as if I can have either only Ctrl or Alt as modifiers. But not in combination. And Shift is just never ever set at all. Interesting.

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Ainda ando pasmado com o facto de uma série cheia de body horror, violência contra crianças, gore e violência gratuita (#StrangerThings) estar a ser agressivamente marketizada para um público infantil

Ontem um amigo de 9 anos do meu filho estava a contar-me como é a melhor série de sempre, e eu ainda estou burro de como hÔ miúdos que estejam a ver isto

Btw não tenho problemas com a série (acabei ontem a 5ª temp e acho profundamente meh), é este esforço em vendê-la a crianças quando é claramente uma série 16+ no mínimo

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This week, Mu (µ) get s bit more serious and starts to refactor the native backend (a lot). Soonā„¢ we will support darwin/arm64, linux/arm64 and linux/amd64 (Yes, other forms of BSD will come!) – Mu (µ) also last week grew concurrency support too! 🤣

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I’m trying to implement configurable key bindings in tt. Boy, is parsing the key names into tcell.EventKeys a horrible thing. This type consists of three information:

  1. maybe a predefined compound key sequence, like Ctrl+A
  2. maybe some modifiers, such as Shift, Ctrl, etc.
  3. maybe a rune if neither modifiers are present nor a predefined compound key exists

It’s hardcoded usage results in code like this:

func (t *TreeView[T]) InputHandler() func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
    return t.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p tview.Primitive)) {
        switch event.Key() {
        case tcell.KeyUp:
            t.moveUp()
        case tcell.KeyDown:
            t.moveDown()
        case tcell.KeyHome:
            t.moveTop()
        case tcell.KeyEnd:
            t.moveBottom()
        case tcell.KeyCtrlE:
            t.moveScrollOffsetDown()
        case tcell.KeyCtrlY:
            t.moveScrollOffsetUp()
        case tcell.KeyTab, tcell.KeyBacktab:
            if t.finished != nil {
                t.finished(event.Key())
            }
        case tcell.KeyRune:
            if event.Modifiers() == tcell.ModNone {
                switch event.Rune() {
                case 'k':
                    t.moveUp()
                case 'j':
                    t.moveDown()
                case 'g':
                    t.moveTop()
                case 'G':
                    t.moveBottom()
                }
            }
        }
    })
}

This data structure is just awful to handle and especially initialize in my opinion. Some compound tcell.Keys are mapped to human-readable names in tcell.KeyNames. However, these names always use - to join modifiers, e.g. resulting in Ctrl-A, whereas tcell.EventKey.Name() produces +-delimited strings, e.g. Ctrl+A. Gnaarf, why this asymmetry!? O_o

I just checked k9s and they’re extending tcell.KeyNames with their own tcell.Key definitions like crazy: https://github.com/derailed/k9s/blob/master/internal/ui/key.go Then, they convert an original tcell.EventKey to tcell.Key: https://github.com/derailed/k9s/blob/b53f3091ca2d9ab963913b0d5e59376aea3f3e51/internal/ui/app.go#L287 This must be used when actually handling keyboard input: https://github.com/derailed/k9s/blob/e55083ba271eed6fc4014674890f70c5ed6c70e0/internal/ui/tree.go#L101

This seems to be much nicer to use. However, I fear this will break eventually. And it’s more fragile in general, because it’s rather easy to forget the conversion or one can get confused whether a certain key at hand is now an original tcell.Key coming from the library or an ā€œextendedā€ one.

I will see if I can find some other programs that provide configurable tcell key bindings.

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In-reply-to » @lyse

@movq@www.uninformativ.de Sorry, I meant the builtin module:

$ python3 -m pep8 file.py
/usr/lib/python3/dist-packages/pep8.py:2123: UserWarning: 

pep8 has been renamed to pycodestyle (GitHub issue #466)
Use of the pep8 tool will be removed in a future release.
Please install and use `pycodestyle` instead.

  $ pip install pycodestyle
  $ pycodestyle ...

I can’t seem to remember the name pycodestyle for the life of me. Maybe that’s why I almost never use it.

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In-reply-to » Since I used so much Rust during the holidays, I got totally used to rustfmt. I now use similar tools for Python (black and isort).

@movq@www.uninformativ.de @prologic@twtxt.net That’s what I like about Go, too. However, every now and then I really dislike the result, e.g. when removing spaces from a column layout. Doesn’t happen often, but when it does, I hate it.

I think I should have a look at Python formatters, too. Pep8 is deprecated, I think, it’s been some time that I looked at it.

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Since I used so much Rust during the holidays, I got totally used to rustfmt. I now use similar tools for Python (black and isort).

What have I been doing all these years?! I never want to format code manually again. šŸ¤£šŸ˜…

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Okay, I had heard of ā€œRiverā€ before but I was not aware of this:

https://codeberg.org/river/river

River defers all window management policy to a separate window manager implementing the river-window-management-v1 protocol. This includes window position/size, pointer/keyboard bindings, focus management, window decorations, desktop shell graphics, and more.

This sounds promising and it follows the old X11 model. River does all the nasty Wayland work and I can make just the WM? šŸ¤”šŸ¤Æ

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** being goblin **
In response to my most recent week notes, Adrian shared this lovely quote on goblins with me. It comes from my favorite game designer, Avery Alder,

being goblin is a way of flagging that you want to include people not in spite of their sloppiness and uneven emotional growth, but because of it — because goblins come as they are, and they grow in community with one another. Being goblin means being intergenerational in an un-pr … ⌘ Read more

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It drizzled all morning when we picked up the old christmas trees in town with the scouts. Right after lunch the snow storm suddenly hit and dumped three centimeters of snow in just 15 minutes. I cycled home in these crazy conditions, freezing rain hammered my face. As soon as I arrived, it stopped. It’s now down to drizzling again.

All my soaked gear is now hung up to dry. The next 11 months, I’m going to find needles over needles in all kind of impossible places.

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In-reply-to » Mu (µ) is coming along really nicely 🤣 Few things left to do (in order):

@shinyoukai@neko.laidback.moe Yes; however the interpreter is also platform dependent and relies on making raw syscalls. This is so the runtime semantics remain the same between the two execution modes.

I’ll see if I can add support for linux/amd64 and netbsd/amd64 for the VM at least.

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In-reply-to » @lyse Ah, the lower right corner is different on purpose: It’s where you can click and drag to resize the window. https://movq.de/v/cbfc575ca6/vid-1767977198.mp4 Not sure how to make this easier to recognize. šŸ¤” (It’s the only corner where you can drag, btw.)

@lyse@lyse.isobeef.org It’s not super comfortable, that’s right.

But these mouse events come with a caveat anyway:

ncurses uses the XM terminfo entry to enable mouse events, but it looks like this entry does not enable motion events for most terminal emulators. Reporting motion events is supported by, say, XTerm, xiate, st, or urxvt, it just isn’t activated by XM. This makes all this dragging stuff useless.

For the moment, I edited the terminfo entry for my terminal to include motion events. That can’t be a proper solution. I’m not sure yet if I’m supposed to send the appropriate sequence manually …

And the terminfo entries for tmux or screen don’t include XM at all. tmux itself supports the mouse, but I’m not sure yet how to make it pass on the events to the programs running inside of it (maybe that’s just not supported).

To make things worse, on the Linux VT (outside of X11 or Wayland), the whole thing works differently: You have to use good old gpm to get mouse events (gpm has been around forever, I already used this on SuSE Linux). ncurses does support this, but this is a build flag and Arch Linux doesn’t set this flag. So, at the moment, I’m running a custom build of ncurses as a quick hack. šŸ˜… And this doesn’t report motion events either! Just clicks. (I don’t know if gpm itself can report motion events, I never used the library directly.)

tl;dr: The whole thing will probably be ā€œkeyboard firstā€ and then the mouse stuff is a gimmick on top. As much as I’d like to, this isn’t going to be like TUI applications on DOS. I’ll use ā€œWindowsā€ for popups or a multi-window view (with the ā€œWindowManagerā€ being a tiny little tiling WM).

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In-reply-to » Mu (µ) is coming along really nicely 🤣 Few things left to do (in order):

Most of it should work on other platforms, the bytecode VM that is. You may run into some platform quirks though that rely on syscall() – Let me know what you run into and I’ll try to fix them nw. The problem right now is I haven’t even begun to start work on another platform/architecture yet.

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Mu (µ) is coming along really nicely 🤣 Few things left to do (in order):

  • Finish the concurrency support.
  • Add support for sockets
  • Add support for linux/amd64
  • Rewrite the heap allocator
  • Rewrite Mu (µ) in well umm Mu (µ) šŸ˜…

Here’s a screenshot showing off the builtin help():

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@shinyoukai@neko.laidback.moe the whole bridge idea is a mistake done twice (I encouraged the first time, it was a mistake to do so). In this case, the ā€œBabel Towerā€ works; there is no need to interact with ā€œothersā€, let it be just twtxt.

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** no beautiful things **
There’s this line in The Hobbit that haunts me. For one thing, it is part of a wider problematic habit running throughout all of Tolkien that, moving in the mythopoetic space, leads to these sweeping statements that define or collapse an entire culture into a single stroke. It seems to me to be like the most damning thing you could say about a culture, though:

Now goblins are cruel, wicked, and bad-hearted. They make no beautiful things, but they make many clever ones.

Emphasis my own, and the quote … ⌘ Read more

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In-reply-to » @lyse Ah, the lower right corner is different on purpose: It’s where you can click and drag to resize the window. https://movq.de/v/cbfc575ca6/vid-1767977198.mp4 Not sure how to make this easier to recognize. šŸ¤” (It’s the only corner where you can drag, btw.)

@movq@www.uninformativ.de Oh, I see. Unfortunately, there seems to be no box drawing character for a corner with a diagonal line. Indeed, this is probably the best you can do.

Is the single character enough to hit it comfortably with the mouse, though? Maybe one additional to the left and above could be something to think about. Not sure. Of course this complicates it a bit more. Personally, I like fullscreen windows, so I’m definitely the wrong guy to judge this or even comment on. :-)

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In-reply-to » I think my widget toolkit will have an amber theme by default:

@lyse@lyse.isobeef.org Ah, the lower right corner is different on purpose: It’s where you can click and drag to resize the window. https://movq.de/v/cbfc575ca6/vid-1767977198.mp4 Not sure how to make this easier to recognize. šŸ¤” (It’s the only corner where you can drag, btw.)

@bender@twtxt.net Seriously, if I ever get a CRT monitor again, I want it to be an amber one and then hook it up to some 8086. šŸ˜… Only problem is that this stuff is expensive as hell now …

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Hey folks! We have recently had a wonderful new release of #py5, read about the new 3D trimesh integration feature and the matplotlib TextPath integration.
That release was quickly followed by a release to fix some small issues that surfaced this last week. Please check out py5 0.10.9a1 and join us at https://github.com/py5coding/py5generator/discussions to share your experiences!

#CreativeCoding #Processing #Python #genuary (sorry for the hashtag spamming, I couldn’t resist!)

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