All my newly added test cases failed, that movq thankfully provided in https://git.mills.io/yarnsocial/twtxt.dev/pulls/28#issuecomment-20801 for the draft of the twt hash v2 extension. The first error was easy to see in the diff. The hashes were way too long. You’ve already guessed it, I had cut the hash from the twelfth character towards the end instead of taking the first twelve characters: hash[12:] instead of hash[:12].

After fixing this rookie mistake, the tests still all failed. Hmmm. Did I still cut the wrong twelve characters? :-? I even checked the Go reference implementation in the document itself. But it read basically the same as mine. Strange, what the heck is going on here?

Turns out that my vim replacements to transform the Python code into Go code butchered all the URLs. ;-) The order of operations matters. I first replaced the equals with colons for the subtest struct fields and then wanted to transform the RFC 3339 timestamp strings to time.Date(…) calls. So, I replaced the colons in the time with commas and spaces. Hence, my URLs then also all read https, //example.com/twtxt.txt.

But that was it. All test green. \o/

I just noticed this pattern:

uninformativ.de 201.218.xxx.xxx - - [22/Nov/2025:06:53:27 +0100] "GET /projects/lariza/multipass/xiate/padme/gophcatch HTTP/1.1" 301 0 "" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36"
www.uninformativ.de 103.10.xxx.xxx  - - [22/Nov/2025:06:53:28 +0100] "GET http://uninformativ.de/projects/lariza/multipass/xiate/padme/gophcatch HTTP/1.1" 400 0 "" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36"

Let me add some spaces to make it more clear:

    uninformativ.de 201.218.xxx.xxx - - [22/Nov/2025:06:53:27 +0100] "GET                       /projects/lariza/multipass/xiate/padme/gophcatch HTTP/1.1" 301 0 "" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36"
www.uninformativ.de 103.10.xxx.xxx  - - [22/Nov/2025:06:53:28 +0100] "GET http://uninformativ.de/projects/lariza/multipass/xiate/padme/gophcatch HTTP/1.1" 400 0 "" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36"

Some IP (from Brazil) requests some (non-existing, completely broken) URL from my webserver. But they use the hostname uninformativ.de, so they get redirected to www.uninformativ.de.

In the next step, just a second later, some other IP (from Nepal) issues an HTTP proxy request for the same URL.

Clearly, someone has no idea how HTTP redirects work. And clearly, they’re running their broken code on some kind of botnet all over the world.

@lyse@lyse.isobeef.org then it was, most likely, space debris—which, sadly, make up for 98% of all space anomalies these days. And thought they have applied to the Grant Wishes Council, they are yet to be approved. Keep playing, though. 😅

Germany and the United Kingdom have warned of the growing threat posed by Russian and Chinese space satellites, which have been regularly spotted spying on satellites used by Western powers ⌘ Read more

@bender@twtxt.net @prologic@twtxt.net Let’s see on which day we’ll finally settle.

I reckon the white-space: nowrap is a bit evil on the gatherly notes, though.

Defense giants Airbus, Thales and Leonardo announce space merger to rival Elon Musk’s Starlink ⌘ Read more

Follow-up observations by Webb confirm GRB 250702B is most energetic cosmic explosion ever recorded
Considering the immense size of the universe, it’s no surprise that space still holds plenty of secrets for us. Recently, astronomers believe they stumbled upon a kind of cosmic blast never seen before, and it’s challenging what we thought we knew about how stars die. ⌘ Read more

Time crystals could power future quantum computers
A glittering hunk of crystal gets its iridescence from a highly regular atomic structure. Frank Wilczek, the 2012 Nobel Laureate in Physics, proposed quantum systems––like groups of particles––could construct themselves in the same way, but in time instead of space. He dubbed such systems time crystals, defining them by their lowest possible energy state, which perpetually repeats movements without external energy input. Time crystals were experimentall … ⌘ Read more

Hoje vou estar em representação da @d3 no Festival MIL, numa conversa dedicada ao tema “Culture and Ethics: Cultural rights in the digital space”. Vai ser da pesada, apareçam!

Image

Open source mega-constellations could solve overcrowding
Duplicating expensive resources is expensive and wasteful, and most people would agree it’s unnecessary. However, the planned increase in major satellite constellations is currently causing a massive duplication of resources as individual companies and even countries try to set up their own infrastructure in space. ⌘ Read more

The Future of the Commercial Space Industry, with Jeff Thornburg ⌘ Read more

Powered by Docker: How Open Source Genius Cut Entropy Debt with Docker MCP Toolkit and Claude Desktop
This is part of the Powered by Docker series, where we feature use cases and success stories from Docker partners and practitioners. This story was contributed by Ryan Wanner. Ryan has more than fifteen years of experience as an entrepreneur and 3 years in AI space developing software and is the founder of Open Source… ⌘ Read more

Redevelopment dilemma for Sydney’s former asylum sites
The challenge of transforming a major piece of Sydney’s public space from a former mental health hospital to an “iconic urban parkland” is a delicate dance for the state government. ⌘ Read more

Rocket test proves bacteria survive space launch and re-entry unharmed
A world-first study has proven microbes essential for human health can survive the extreme forces of space launch. The study has been published in npj Microgravity. ⌘ Read more

Hashcards: A Plain-Text Spaced Repetition System
Comments ⌘ Read more

New telescope cuts through space noise in hunt for distant Earth-like worlds
EU researchers are developing powerful new telescopes to help uncover Earth-like planets around distant stars and advance the search for extraterrestrial life. ⌘ Read more

wafer.space Launches GF180MCU Run 1 for Custom Silicon Fabrication
wafer.space has launched its first pooled silicon fabrication run on Crowd Supply, known as GF180MCU Run 1. The campaign offers designers the opportunity to fabricate 1,000 chips of their own design using GlobalFoundries’ 180 nm mixed-signal process. The initiative is aimed at providing accessible, structured access to custom silicon, with dies expected to ship in […] ⌘ Read more

[$] Kernel hackers at Cauldron, 2025 edition
The GNU Tools Cauldron is almost entirely focused on user-space tools, but
kernel developers need a solid toolchain too. In what appears to be a
developing tradition ( started in 2024),
some kernel developers attended the 2025 Cauldron for the
second year in a row to discuss their needs with the assembled toolchain
developers. Topics covered in this year’s gathering include Rust, better
[BPF type\
format (BTF … ⌘ Read more

@prologic@twtxt.net it is looking good! On mobile, I find that the line height is too large for my liking, and that text takes too much space. I would like it a bit more dense. But that’s just my taste.

I haven’t checked in desktop; I try not to touch desktop on weekends. 😂

The Space Race Never Ended ⌘ Read more

@lyse@lyse.isobeef.org @movq@www.uninformativ.de bbycll’s nickname regex is /^([-_\p{N}\p{L}])+$/iu because i don’t like how english-centric only allowing ascii letters/numbers is though this only applies to local users as of now, currently all nicknames are tolerated when parsing remote feeds and i just do mentions how yarn does (just the feed url)

in the wild, i’ve noticed a texedus feed with spaces in the nick (where its spec explicitly disallows whitespace in the nick) and feeds with other symbols in the nick too. honestly, i think we should just tolerate arbitrary nicknames for sake of user expression (while stripping or converting unreasonable characters) and just leave them out of mentions

@zvava@twtxt.net @movq@www.uninformativ.de I’m not entirely sure about the spaces, but maybe they were omitted to simplify parsing of mentions in the form of @<nick url>. If the next token after the @<nick does not look like a URL, it’s not a mention but regular text. This is just wild guessing, though.

Looking at the regex and tests in the original twtxt reference implementation seems to confirm that theory in the sense as it relies on whitespace as the delimiter:

https://lyse.isobeef.org/tmp/screenshot-2025-09-17-21-30-25.png

Another thing about nicks is that the original twtxt reference implementation converts nicks to all lowercase:

https://lyse.isobeef.org/tmp/screenshot-2025-09-17-21-20-39.png

You probably know this already, the original twtxt file format specification can be found here: https://twtxt.readthedocs.io/en/latest/user/twtxtfile.html

As for extensions, I don’t know of anything outside of twtxt.dev that has actually been (partially) implemented. However, there is also the issue tracker of the official reference implementation. You might wanna dig through that. For example, there is an alternative suggestions of multiline messages: https://github.com/buckket/twtxt/issues/157

A música “My Monkey” de #MarilynManson deveria ser a mais óbvia escolha para esta #musiquinta sobre #macaco - mas desde quando é que temos e ir pelo óbvio? E assim sendo, escolho em vez disso outra música da banda - podia ser a Organ Grinder (que também refere o ‘funny little monkey’ que depois tem a sua própria música), mas em vez disso escolho a “Cruci-fiction In Space”, da mesma banda mas já do seu quarto album, publicado após o massacre de Columbine - sobre o qual o artista foi indevidamente crucificado. De certa forma, parece-me uma escolha adequada para os dias de hoje…

https://youtu.be/siGW15zMoQw

For those not on Gemini, a proxy provides more insides on such, hmm, interesting acronym. :-D

I think I’m gonna participate in ROOPHLOCH this year: gemini://zaibatsu.circumlunar.space/~solderpunk/gemlog/announcing-roophloch-2025.gmi

We use all the Microsoft programs at work - Teams and Outlook especially.

After all kinds of technical problems with Teams, that sometimes go unresolved for over a year, Microsoft shifted their priorities away from fixing things and towards adding an annoying AI Copilot button, that just takes up space and all it does, is loads the website in Teams, so I disabled it. Soon they just add it back, but in a different row of icons, therefore it’s now a different button, you have to disable (I think they added yet another one, to the Teams, on my work phone and I had to disabled that too). Not too long after, the desktop one just enabled itself, because of “an error” and I can disable it, but doing so activates a popup, that begs you to turn it back on, every once in a while. You can’t disable the popup and can only click “Yes” or “Not now” on it. I still keep it disabled, out of principle, but yesterday I noticed yet another Copilot button, this time in the top right corner of my Outlook and this one cannot be disabled, on the business version of Outlook and even on the personal one, it’s only possible to do it through hidden privacy settings, by prohibiting the program from connecting to Microsoft servers, for extra “features”.

There’s people complaining about it online, so it’s clear nobody really wants it, but at this point Microsofts position is that you will have at least one useless AI button on your screen, at any given time, and you will be happy. And yes, their AI sucks and if I absolutely have to use AI for something, there’s already 2 better options, we have access to, at work.

Queria ouvir coisas novas e dei de caras com a lista de álbuns do ano do Resident Advisor, que é boa para apanhar as pérolas que nos passaram ao lado nos últimos 20 anos:

2006: Booka Shade - Movements
2007: Burial - Untrue
2008: Shed - Shedding the Past
2009: DJ Sprinkles - Midtown 120 Blues
2010: Caribou - Swim
2011: Nicolas Jaar - Space Is Only Noise
2012: Voices from the Lake - Voices from the Lake
2013: James Holden - The Inheritors
2014: Andy Stott - Faith in Strangers
2015: Floating Points - Elaenia
2016: Babyfather - “BBF” Hosted by DJ Escrow
2019: FKA Twigs - Magdalene
2020: DJ Python - Mas Amable
2021: Space Afrika - Honest Labour
2022: D. Tiffany and Roza Terenzi - Edge of Innocence
2023: Kelela - Raven
2024: Loidis - One Day

@movq@www.uninformativ.de having to go to a gopher proxy to see a text document better served on readily available web servers… 🤭, but I digress. Verbatim text:

What's Missing from "Retro"
~softwarepagan
------------------------------------------------------------------
You know, often, when I say I miss older ways of computing or
connecting online, people tell me "there's nothing stopping you
from doing that now!" and they are technicay correct in most cases
(though I can't, for example, chat with friends on MSN ever
again...) However, let me explain that while this type of thing can
*sort of* fill that hole in my heart, it isn't *the same.*

Say, for example, I wanted to connect with others over a BBS. This
wouldn't offer the same types of connections it used to. While
there are BBSes around with active users, they're no longer there
to discuss movies, Star Trek, D&D, games, etc. They're there to
discuss *BBSes.* The same can be said for Gopher, old-school forums
and all sorts of revival projects (such as Escargot, Spacehey,
etc.) Retrocomputing enthusiasts, while they have a variety of
interests, are often in these spaces to discuss the medium itself
and not other topics. This exists at a stark contrast from how
things were in the past, where a non-tech-inclined person may learn
the tech to connect with likeminded others (as I did as a
Zelda-obsessed kid.)

The same can be said of old media. People will say "well, nobody is
stopping you from watching old shows/movies now!" Again, they are
technically correct. I can go home right now and watch *Star Trek:
The Next Generation* to my heart's content. It will never again,
however, be current, or new. When something is new, it serves as a
shared cultural experience. Remember how "Game of Thrones* felt in
the mid-to-late 2010s? Yeah, that.

It's sad. I sustain myself on a mixed diet of old things, new
things, and new things intended for old millenials like me who like
old things. It can be bittersweet. 

In case you were blissfully unaware: https://utcc.utoronto.ca/~cks/space/blog/unix/XLibreIsExplicitlyPolitical

@lyse@lyse.isobeef.org Oh, huh, maybe it was just my GNOME 2 themes back then that didn’t show the icon. 🤔

I like the looks of your window manager. That’s using Wayland, right?

Oh, no. It’s still X11. All my recent Wayland comments resulted from me trying to switch, but I think it’s still too early. Being unable to use QEMU (because it can’t capture the mouse pointer) is a pretty big blocker for me. This is completely broken, it just happens to be unnoticeable with modern guest OSes, so it’s probably not a priority for devs.

(Not to mention that I would have to fork and substantially extend dwl in order to “replicate” my X11 WM. And then, after having done that, I’d have to follow upstream Wayland development, for which I don’t have the resources. Things would need to slow down before I can do that.)

all that wasted space of the windows not making use of the full screen!!!1

Heh. I’ve been using tiling WMs for ~15 years now, so it’s actually kind of refreshing to see something different for a change. 😅

Probably close to the older Windowses.

That particular theme is a ripoff of OS/2 Warp 3: https://movq.de/v/6c2a948882/s.png 😅

We ran some similar brownish color scheme (don’t recall its name) on Win95 or Win98

Oh god. Yeah, I wasn’t a fan of those, either. 🥴

@movq@www.uninformativ.de According to this screenshot, KDE still shows good old application icons: https://upload.wikimedia.org/wikipedia/commons/9/94/KDE_Plasma_5.21_Breeze_Twilight_screenshot.png

And GNOME used to have them, too: https://upload.wikimedia.org/wikipedia/commons/9/9f/Gnome-2-22_%284%29.png

I like the looks of your window manager. That’s using Wayland, right? The only thing on this screenshot to critique is all that wasted space of the windows not making use of the full screen!!!1 At least the file browser. 8-)

This drives me nuts when my workmates share their screens. I really don’t get it how people can work like that. You can’t even read the whole line in the IDE or log viewer with all the expanded side bars. And then there’s 200 pixels on the left and another 300 pixels on the right where the desktop wallpaper shows. Gnaa! There’s the other extreme end when somebody shares their ultra wide screen and I just have a “regularish” 16:10 monitor and don’t see shit, because it’s resized way too tiny to fit my width. Good times. :-D

Sorry for going off on a tangent here. :-) Back to your WM: It has the right mix of being subtle and still similar to motif. Probably close to the older Windowses. My memory doesn’t serve me well, but I think they actually got it fairly good in my opinion. Your purple active window title looks killer. It just fits so well. This brown one (https://www.uninformativ.de/blog/postings/2025-07-22/0/leafpads.png) gives me also classic vibes. Awww. We ran some similar brownish color scheme (don’t recall its name) on Win95 or Win98 for some time on the family computer. I remember other people visting us not liking these colors. :-D

@movq@www.uninformativ.de omg YAML is so demonic like it pretends to be readable and then THE SPACING. THE FUCKING SPACING

hey! i asked this a while ago but i have to ask again – is anyone willing to offer space on their yarn pod to my friend? i would love to invite her to my own but she’s unable to access my site for personal reasons. she’s really interested in seeing what yarn is about so if anyone is willing and able, let me know!

How you can tell a “review post” on some random website was written by AI?

Ergonomically nicer than its binocular counterpart

How exactly is this a reason to avoid?! 🤦‍♂️

The lid is on and the first saw brackets are done. Let’s see how impractical they are. I might have to add heavy chamfers to better guide them in.

Image

Image

I added 07 to 11: https://lyse.isobeef.org/tmp/hobelbankschubladen/

I’m now going to delete 7,336 old photos (previews, resized web versions and index.htmls) and reclaim 3.3 GiB disk space on my laptop.

I’ve told that whomever has this link will be able to watch live the third and edition of “Secret Garden festival”.

“We bring you the delights of Scott Marshall Hurdy Gurdy, and Bristol’s Dead Space Chamber Music, with a little Sieben to kick off proceedings. Come join us in the garden!”

Starting now!

https://www.youtube.com/live/k9V92zE4dyk

‘Dependent upon SpaceX’: How Trump’s Musk spat can impact NASA
As the space race once again heats up to a level not seen since the Cold War, the United States has found itself in an unenviable position of reliance on SpaceX. ⌘ Read more

Field Notes From Shipping Real Code With Claude
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Simulating Time With Square-Root Space
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“She didn’t want to leave’: Program to help people using libraries as safe spaces
A Perth library trials a social worker program after noticing an increase in people using libraries as a safe space. ⌘ Read more

Astonishing discovery by computer scientist: how to squeeze space into time
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Picking uncontested private IP subnets with usage data
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Residents say council push to develop green space ‘concerning’
Port Lincoln residents push back against a proposal from their council to develop five parcels of land for housing. ⌘ Read more

What’s your go-to message queue in 2025?

The space is confusing to say the least.

Message queues are usually a core part of any distributed architecture, and the options are endless:
Kafka, RabbitMQ, Redis {Pub-Sub, Streams}, Cloud Providers {AWS SQS, Kinesis; Google Pub/Sub; Azure Event Hubs, Service Bus}, Pulsar, ZeroMQ… and then there’s the “just use Postgres” camp for simpler use cases.

I’m trying to make sense of the tradeoffs between:

• async fire-and-forget pub/sub vs. sync RPC-like point … ⌘ Read more

‘Everyone needs joy’: Gala celebrates women affected by domestic and family abuse
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Things are different between system and application monitoring
Comments ⌘ Read more

My idea of how a modern mailing service should work
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In POSIX, you can theoretically use inode zero
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Brain injury survivors connecting through rhythm and music
The NeuroRhythm program combines dance with Djembe drumming to offer participants a space to express themselves and connect with others. ⌘ Read more

Did you know about @panoramax@panoramax , “a federation offering geolocated street-level pictures”?

Pictures are offered through a decentralized architecture, with a set of free and open-source tools. In other words, it is “like a self-hosted Street View” that does not impose its own app and gives you the right to fork the server.

#fediverse #osm

France BANS smoking in nearly all outdoor spaces ⌘ Read more

10 Crazy Ideas About Our Solar System
Crazy space ideas are the most interesting, and I don’t mean the unfounded inklings that space-reptiles helped levitate the stones at Angkor Wat, or that giant cat-headed spacefarers built the pyramids as huge scratching posts. Nope, the following craziness is based on bona fide science from people and computers that actually do science for a […]

The post [10 Crazy Ideas About Our Solar System](https://listverse.com/2025/05/29/10-crazy-ideas-about-our-sola … ⌘ Read more

A thought on JavaScript “proof of work” anti-scraper systems
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Spaced Repetition Systems Have Gotten Way Better
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AAEON EPIC-RPS7 Targets Compact Industrial Control with 14th Gen Intel Core Support
AAEON has introduced the EPIC-RPS7, a 4″ industrial SBC aimed at cost-sensitive applications like industrial control, PLC automation, and remote monitoring. It supports 12th to 14th Gen Intel Core processors (up to 65W TDP), bringing high performance to space-limited deployments. The EPIC-RPS7 supports up to 64GB of DDR5 memory across two SODIMM slots and is […] ⌘ Read more

It’s the Year of the Linux Desktop… IN SPACE! (And Maybe North Korea)
There is one place, in the entire Universe, where Linux has a dominant marketshare on Desktop and Laptop computers: Outer Space. ⌘ Read more

Ann, the Small Annotation Server
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$10,500 Bounty: A Grammarly Account Takeover Vector

Image

When a Space Breaks the System: How Improper Entity Validation Led to a Full SSO Denial and Potential Account Takeovers

[Continue reading on InfoSec Write-ups »](https://infosecwriteups.com/10-500- … ⌘ Read more

@aelaraji@aelaraji.com Cool! 😎 Mind joining the same IRC space? 🙏

Classical “Single user computers” were a flawed or at least limited idea
Comments ⌘ Read more

Pathfinding
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Get the iPad Mini 7 for $399.99 at Amazon This Week ($99 Off)
Amazon this week is providing record low prices on multiple models of the iPad mini 7, starting at $399.99 for the 128GB Wi-Fi tablet, down from $499.00. Colors on sale at this price include Purple, Space Gray, and Blue.

![](https://images.macrumors.com/article-new/2024/10/ipad-mini-7-featur … ⌘ Read more

A review of documentation in the Rust ecosystem
Comments ⌘ Read more

Which AI “arena” is the one we can actually trust?
I’m getting deeper and deeper into the AI space, and I’m discovering the different AI “arenas” and benchmarking. I have no idea what to trust or leverage to help me learn about the different models out there. Does the lobste.rs community have one that they go to by default? ⌘ Read more

Einstein was in his 20s when he told the world space & time are relative! 🤓 ⌘ Read more

@doesnm@doesnm.p.psf.lt More or less 😂 At the moment it’s just a space to experiment

@andros@twtxt.andros.dev Alright. 👍 Btw, your feed uses spaces instead of tabs. 😅

Amazon Takes $100 Off iPad Mini 7 With Return of All-Time Low Prices, Starting at $399
Amazon this weekend is providing record low prices on multiple models of the iPad mini 7, starting at $399.00 for the 128GB Wi-Fi tablet, down from $499.00. Colors on sale at this price include Purple, Space Gray, and Starlight.

![](https://images.macrumors.com/ … ⌘ Read more

“Low on Space in Kali Linux? Here’s How I Fixed It and Freed Up GBs”

Image

“I was in the middle of a pentesting session when Kali refused to cooperate.”

[Continue reading on InfoSec Write-ups »](https://infosecwriteups.com/lo … ⌘ Read more

@prologic@twtxt.net hahahahaha! No, no, no. Every word has its use. But for things like these I like certain reactions. For example, I would have given a “thumbs down” to the original twtxt, and done with it. Now, composing a reply, to simply say “no, thank you.”, that I don’t like. It seems a waste of space, and it doesn’t “look good”. I like to see at least 140 characters! Ha!

@movq@www.uninformativ.de I didn’t say I was leaving, just not that active here atm. I might be more active on mastodon at https://norrebro.space/@sorenpeter but I’m also rethinking that too tbh.

Some gopher browsers handle type i and spaces better than others.

Have Vim highlight differences in indentation (tabs vs spaces)? ⌘ Read more

Beetle RP2350 is a $4.90 Mini Development Board for Embedded Projects
The Beetle RP2350 is a coin-sized development board designed for space-constrained embedded projects. Despite its compact 25 × 20.5 mm footprint, it offers a wide range of hardware features and low power consumption, enabling its use in portable devices such as retro computers, game consoles, lighting controllers, and electronic badges. This board is built around […] ⌘ Read more

Cool, Hubble turns 35 today! https://science.nasa.gov/missions/hubble/nasa-celebrates-hubbles-35th-year-in-orbit/ Happy birthday little space telescope and thanks for all the lovely photos! :-)

Stonean spaces, projective objects, the Riesz representation theorem, and (possibly) condensed mathematics
Comments ⌘ Read more

hehe, just catching up on this thread! I’ve replied in another that using periods/dots sounds good to me as it’s usual in domains, but perhaps some agreement would be needed. For now I think any character is valid as long as it is not a space.
For example we are using this for PHP twtxt.php#L153

[$] DMA addresses for UIO
The Userspace\
I/O (UIO) subsystem was first added to the kernel by
Hans J. Koch for the 2.6.32 release in 2007. Its purpose is to facilitate
the writing of drivers (mostly) in user space; to that end, it provides
access to a number of resources that user-space code normally cannot touch.
One piece that is missing, though, is DMA addresses. [A proposal to\
fill that gap](https://lwn.net/ml/all/20250410-uio-dma-v … ⌘ Read more

Future of Space got out day started with an icebreaker—the literal kind 🧊 ⌘ Read more

[$] Tracepoints for the VFS?
Adding tracepoints to some kernel subsystems has been controversial—or
disallowed—due to concerns about the user-space\
ABI that they might create. The virtual filesystem (VFS) layer has
long been one of the subsystems that has not allowed any tracepoints, but
that may be changing. At the 2025 Linux Storage, Filesystem, Memory
Management, and BPF Summit (LSFMM+BPF), Ted Ts’o led a discussion about
whether the ABI concerns are outweighed by the utility of tracepoints for … ⌘ Read more

@movq@www.uninformativ.de it seems you got plenty of choices. That’s the cheapest of their products, and you are quite right, amazing pricing! I pay Apple $10/month for a shared-amongst-family 2TiB storage space.

[$] In search of a stable BPF verifier
BPF is, famously, not part of the kernel’s promises of user-space stability. New
kernels can and do break existing BPF programs; the BPF developers try to
fix unintentional regressions as they happen, but the whole thing can be something of a bumpy
ride for users trying to deploy BPF programs across multiple kernel versions.
Shung-Hsi Yu and Daniel Xu had two different approaches to fixing the problem
that they presented at the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit. ⌘ Read more

Sony Introduces AS-DT1, Described as the World’s Smallest and Lightest Precision LiDAR Sensor
Sony Electronics has introduced the AS-DT1, a miniature LiDAR depth sensor targeting applications with strict space and weight constraints. Measuring 29mm x 29mm x 31mm and weighing 50g, it is described as the world’s smallest and lightest LiDAR sensor in its class. The AS-DT1 is built on Sony’s proprietary Direct Time of Flight LiDAR technology. […] ⌘ Read more

[$] Per-CPU memory for user space
The kernel makes extensive use of per-CPU data as a way to avoid contention
between processors and improve scalability. Using the same technique in
user space is harder, though, since there is little control over which CPU
a process may be running on at any given time. That hasn’t stopped Mathieu
Desnoyers from trying, though; in the memory-management track of the 2025
Linux Storage, Filesystem, Memory-Management, and BPF Summit, he presented
a proposal for how user-space per-CPU memory could work. ⌘ Read more

@prologic@twtxt.net there is a space on the first line on that codeblock. I think this one is the culprit:

pre>code {
    padding:0 .25rem;
}

@prologic@twtxt.net Spring cleanup! That’s one way to encourage people to self-host their feeds. :-D

Since I’m only interested in the url metadata field for hashing, I do not keep any comments or metadata for that matter, just the messages themselves. The last time I fetched was probably some time yesterday evening (UTC+2). I cannot tell exactly, because the recorded last fetch timestamp has been overridden with today’s by now.

I dumped my new SQLite cache into: https://lyse.isobeef.org/tmp/backup.tar.gz This time maybe even correctly, if you’re lucky. I’m not entirely sure. It took me a few attempts (date and time were separated by space instead of T at first, I normalized offsets +00:00 to Z as yarnd does and converted newlines back to U+2028). At least now the simple cross check with the Twtxt Feed Validator does not yield any problems.

[$] Page allocation for address-space isolation
Address-space isolation may well be, as Brendan Jackman said at the
beginning of his memory-management-track session at the 2025 Linux Storage,
Filesystem, Memory-Management, and BPF Summit, “some security
bullshit”. But it also holds the potential to protect the kernel from
a wide range of vulnerabilities, both known and unknown, while reducing the
impact of existing mitigations. Implementing address-space isolation with
reasonable performance, though, is going to require some signific … ⌘ Read more

[$] Memory persistence over kexec
The kernel’s kexec\
mechanism allows one kernel to directly boot a new one; it can be
thought of as a sort of kernel equivalent to the execve()
system call. Kexec has a number of uses, including booting a special kernel
to perform dumps after a crash. Normally, one does not expect user-space
processes to survive booting into a new kernel, but that has not stopped
developers from trying to im … ⌘ Read more

@lyse@lyse.isobeef.org Thanks for taking a look, and for pointing out the mixture of tabs and spaces.

I think I’ll leave reachability.c alone, since my intention there was to use an indent level of one tab, and the spaces are just there to line up a few extra things. I fixed reachability_with_stack.cc though.

[$] Improving the merging of anonymous VMAs
The virtual memory area (VMA), represented by struct\
vm_area_struct, is one of the core abstractions of the kernel’s
memory-management subsystem; a VMA represents a portion of a process’s
address space with the same characteristics. A memory-mapped file will be
represented by (at least) one VMA, as will the process’s stack or a region
of anonymous memory. Efficiently managing VMAs and the logic around them
i … ⌘ Read more

What happens when Astronauts Have an Itch in Space? ⌘ Read more

What Are The Risks Of Death In Space Exploration Today ⌘ Read more

Microchip PolarFire-Powered TinyBeast FPGA Delivers Real-Time Performance with DDR4 and PCIe
CrowdSupply recently introduced the TinyBeast FPGA, a compact platform based on Microchip’s PolarFire FPGA technology. It stands out for its ability to offload computationally intensive tasks from the central processor, enabling real-time data processing in space-constrained environments like automation, measurement, and robotics. TinyBeast FPGA comes in two c … ⌘ Read more

How MUCH Space Junk is in Low Earth Orbit? 🛰️ ⌘ Read more

10 High-Tech Projects Made Possible Only by Global Partnerships
In an increasingly interconnected world, many of humanity’s greatest technological achievements didn’t come from a single nation—they came from global collaboration. Whether the goal was to explore space, contain disaster, or decode the building blocks of life, these projects demonstrate that when countries pool their resources, talent, and innovation, the results can be nothing short […]

The post [10 Hig … ⌘ Read more

[$] LWN.net Weekly Edition for March 27, 2025
Inside this week’s LWN.net Weekly Edition:

• Front: Open source in government; OSI election; Memory-management medley; Address-space isolation; CMA; 6.14 Development stats; State of the page.

• Briefs: Asahi Linux progress; Reproducible Debian; rpi-image-gen; Neovim 0.11; OpenH264; Quotes; …

• Announcements: Newsletters, conferences, security updates, patches, and more. ⌘ Read more

Human Guinea Pig in Space Heart Shrinks?! ❤️ BUT- It Grew Back! ⌘ Read more

@movq@www.uninformativ.de You could also just use a tiling window manager. :-) As a bonus, it doesn’t waste dead space, the window utilizes the entire screen. To also get rid of panels and stuff, put the window in fullscreen mode.

Bhattcharya: Closing the chapter on OpenH264
Boudhayan Bhattcharya has posted a lengthy article
about the announcement
that the Freedesktop project is dropping OpenH264 from the Freedesktop SDK for Flatpak
applications and runtimes.

Some Flatpak applications that depend on the Freedesktop runtime
version 23.08 will lose H.264 playb … ⌘ Read more