lyse

lyse.isobeef.org

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In-reply-to » @alexonit prologic has me sold on the idea of hashv2 being served alongside a text fragment, eg. (#abcdefghijkl https://example.com/tw.txt#:~:text=2025-10-01T10:28:00Z), because it can be simply hacked in to clients currently on hashv1 and provides an off-ramp to location-based addressing (though i still think the format should be changed to smth like #<abc... http://example.com/...> so it's cleaner once we finally drop hashes)

@zvava@twtxt.net Mixing both addressing schemes combines the worst of both worlds in my opinion. Please don’t do that.

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In-reply-to » is the first url metadata field unequivocally treated as the canon feed url when calculating hashes, or are they ignored if they're not at least proper urls? do you just tolerate it if they're impersonating someone else's feed, or pointing to something that isn't even a feed at all?

@zvava@twtxt.net Yes, the specification defines the first url to be used for hashing. No matter if it points to a different feed or whatever. Just unsubscribe from malicious feeds and you’re done.

Since the first url is used for hashing, it must never change. Otherwise, it will break threading, as you already noticed. If your feed moves and you wanna keep the old messages in the same new feed, you still have to point to the old url location and keep that forever. But you can add more urls. As I said several times in the past, in hindsight, using the first url was a big mistake. It would have been much better, if the last encountered url were used for hashing onwards. This way, feed moves would be relatively straightforward. However, that ship has sailed. Luckily, feeds typically don’t relocate.

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In-reply-to » For a very first attempt, I'm extremely happy how this tray turned out: https://lyse.isobeef.org/tmp/blechschachtel/ The photos look rougher than in person. The 0.5mm aluminium sheet was 300x200mm to begin with. Now, the accidental outside dimensions are 210x110mm. It took me about an hour to make. Tomorrow, I gotta build a simple folder, so I don't have to hammer it anymore, but can simply bend it a little at a time.

Haha, turns out, it’s the perfect size to fit hankies: https://lyse.isobeef.org/tmp/blechschachtel/07.jpg

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In-reply-to » @lyse Beautiful handwork, how did you seal the corners? I don't see and hole or anything.

Thank you, @alexonit@twtxt.alessandrocutolo.it! It’s not sealed at all. If you were pouring in a liquid, it would run out on all four corners. It’s just folded over and carefully hammered shut as best as possible. 03 is a bit blurred, but you can see the tab from the right (the short side) tucking in on the left (the long side). The hem on top clamps it in place fairly decently.

I decided against blind rivets, because they leave ugly looking and sharp backsides, which can also interfer with the contents of the box. However, they would be an easy solution to make the corners more rigid and prevent any movement from the short sides.

Unfortunately, I can’t weld or solder, so that’s not an option. It would be the by far best solution. I wanna learn it one day, though.

Yes, Ken is a really great dude. He’s the reason I gave this a shot in the first place. :-)

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In-reply-to » @lyse Thanks, I think I fixed it now. Sorry for the spam.

@itsericwoodward@itsericwoodward.com No worries, all good, mate! We all have to start somewhere. Other software requests my feed several orders of magnitude more often.

I can confirm, the User-Agent header appears to be fixed. \o/

Two other things I noticed, though:

  1. There’s now an OPTIONS request for my feed coming from something that claims to be Firefox, pointing to your feed URL in the query. No clue what this is about. In any case, it’s rejected with a 405 Method Not Allowed.

  2. Not that these few requests bother me at all, but you might wanna implement caching next with either the If-Modified-Since or If-None-Match request headers. This way, if the feed hasn’t changed, the web server can reply with a 304 Not Modified and no body at all, saving unnecessary traffic. But again, this is really not an issue for me at all. I just wanted to make sure you’re aware of it, that’s all. It might be even already on your agenda. Or you might decide to never do anything about it, which is also fine for me. :-)

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In-reply-to » For a very first attempt, I'm extremely happy how this tray turned out: https://lyse.isobeef.org/tmp/blechschachtel/ The photos look rougher than in person. The 0.5mm aluminium sheet was 300x200mm to begin with. Now, the accidental outside dimensions are 210x110mm. It took me about an hour to make. Tomorrow, I gotta build a simple folder, so I don't have to hammer it anymore, but can simply bend it a little at a time.

@bender@twtxt.net @movq@www.uninformativ.de Thank you! Not sure what I end up putting in there, but I’m sure I will find some tools to go in. :-)

Yes, this was a flat piece of sheet metal. It went together like a cardboard box, just much slower and with timbers clamped down to get a straight folding line. I don’t have a sheet metal brake, so I just carefully hammered the piece bit by bit. Like in this video by the Sheet Metal Dude: https://www.youtube.com/watch?v=WYgEfWEMXk0

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For a very first attempt, I’m extremely happy how this tray turned out: https://lyse.isobeef.org/tmp/blechschachtel/ The photos look rougher than in person. The 0.5mm aluminium sheet was 300x200mm to begin with. Now, the accidental outside dimensions are 210x110mm. It took me about an hour to make. Tomorrow, I gotta build a simple folder, so I don’t have to hammer it anymore, but can simply bend it a little at a time.

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In-reply-to » @prologic the simplest thing to do is to completely forgo hashing anything because we are communicating using plain text files right now :3 while i agree hashes are incredibly helpful in the backend im not sure it has a place outside of it, it basically eliminates two core design principals of twtxt (human readability and integrating well with unix command line utilities) and makes new clients more difficult to build than it should be

Exactly, @zvava@twtxt.net, I agree. (Although, in my client at least, I wouldn’t use hashes anywhere.)

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In-reply-to » Whooooaaaah, I just accidentally found out that VLC can play 360° videos and I am able to pan around! Crazy shit. I actually scrolled in order to adjust the volume like it usually works, but it zoomed in and out instead. Then I saw the title hinting at the 360° stuff. Even though this is not my cup of tea, it's nice that VLC supports it.

@bender@twtxt.net @movq@www.uninformativ.de I had automatically yt-dlped https://www.youtube.com/watch?v=OZTSIYkuMlU

. It’s only worth for an experiment, no recommendation to watch.

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Whooooaaaah, I just accidentally found out that VLC can play 360° videos and I am able to pan around! Crazy shit. I actually scrolled in order to adjust the volume like it usually works, but it zoomed in and out instead. Then I saw the title hinting at the 360° stuff. Even though this is not my cup of tea, it’s nice that VLC supports it.

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In-reply-to » Happy equinox – where the world is illuminated like this:

@movq@www.uninformativ.de Woah, cool!

(WTF, asciiworld-sat-track somehow broke, but I have not changed any of the scripts at all. O_o It doesn’t find the asciiworld-sat-calc anymore. How in the world!? When I use an absolute path, the .tle is empty and I get a parsing error. Gotta debug this.)

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In-reply-to » Here is just a small list of thingsā„¢ that I'm aware will break, some quite badly, others in minor ways:

@prologic@twtxt.net I know we won’t ever convince each other of the other’s favorite addressing scheme. :-D But I wanna address (haha) your concerns:

  1. I don’t see any difference between the two schemes regarding link rot and migration. If the URL changes, both approaches are equally terrible as the feed URL is part of the hashed value and reference of some sort in the location-based scheme. It doesn’t matter.

  2. The same is true for duplication and forks. Even today, the ā€œcannonical URLā€ has to be chosen to build the hash. That’s exactly the same with location-based addressing. Why would a mirror only duplicate stuff with location- but not content-based addressing? I really fail to see that. Also, who is using mirrors or relays anyway? I don’t know of any such software to be honest.

  3. If there is a spam feed, I just unfollow it. Done. Not a concern for me at all. Not the slightest bit. And the byte verification is THE source of all broken threads when the conversation start is edited. Yes, this can be viewed as a feature, but how many times was it actually a feature and not more behaving as an anti-feature in terms of user experience?

  4. I don’t get your argument. If the feed in question is offline, one can simply look in local caches and see if there is a message at that particular time, just like looking up a hash. Where’s the difference? Except that the lookup key is longer or compound or whatever depending on the cache format.

  5. Even a new hashing algorithm requires work on clients etc. It’s not that you get some backwards-compatibility for free. It just cannot be backwards-compatible in my opinion, no matter which approach we take. That’s why I believe some magic time for the switch causes the least amount of trouble. You leave the old world untouched and working.

If these are general concerns, I’m completely with you. But I don’t think that they only apply to location-based addressing. That’s how I interpreted your message. I could be wrong. Happy to read your explanations. :-)

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In-reply-to » @zvava @lyse I also think a location based reference might be better.

@alexonit@twtxt.alessandrocutolo.it Personally, I find the reversed order of URL first and then timestamp more natural to reference something. Granted, URL last would be kinda consistent with the mention format. However, the timestamp doesn’t act as a link text or display text like in a mention, so, it’s some different in my opinion. But yeah.

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In-reply-to » The worst thing you can do is make your infrastructure (switches, wifi, ...) depend on some cloud service. Because someone else is maintaining that service; you have no control over it. You 100% depend on that other person now. Very stupid idea.

@movq@www.uninformativ.de But it’s so reliable and they have all the experts, they know what they’re doing! And don’t forget, it’s way cheaper! Just think of the 34 cents saved every year on paper, the business dude calculated!

Enjoy your weekend! (I hope, you just called it a day and don’t have to drive to the office or silly shenanigans like that.)

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In-reply-to » is there consensus on what characters should(n't) be allowed in nicks? i remember reading somewhere whitespace should not be allowed, but i don't see it in the spec on twtxt.dev — in fact, are there any other resources on twtxt extensions outside of twtxt.dev?

@zvava@twtxt.net In tt, I recognize umlauts in nicks, but they cannot include whitespace, @, !, #, (, ), [, ], <, >, " (but ' is okay). Whitespace also acts as a separator between nick and URL. @<Hello World http://example.com> ends up exactly like that and is not a mention.

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In-reply-to » is there consensus on what characters should(n't) be allowed in nicks? i remember reading somewhere whitespace should not be allowed, but i don't see it in the spec on twtxt.dev — in fact, are there any other resources on twtxt extensions outside of twtxt.dev?

@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

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In-reply-to » @lyse i dont mind if the hash is not backward compatible but im not sure if this is the right way to proceed because the added complexity dealing with two hash versions isnt justified

@zvava@twtxt.net There would be only one hash for a message. Some to be defined magic date selects which hash to use. If the message creation timestamp is before this epoch, hash it with v1, otherwise hammer it through v2. Eventually, support for v1 could be dropped as nobody interacts with the old stuff anymore. But I’d keep it around in my client, because why not.

If users choose a client which supports the extensions, they don’t have to mess around with v1 and v2 hashing, just like today.

As for the school of thought, personally, I’d prefer something else, too. I’m in camp location-based addressing, or whatever it is called. There more I think about it, a complete redesign of twtxt and its extensions would be necessary in my opinion. Retrofitting has its limits. Of course, this is much more work, though.

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In-reply-to » @lyse Yeah, I’ve corrupted a Git repo or two doing that … 🄓

@movq@www.uninformativ.de Luckily, I had a grep -v git at the end, so my repo is still in working order. Phew. I wish find had grep-like --exclude-dir and --exclude options (or the include variants) instead of its own weird options that I never can remember and combine properly.

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In-reply-to » @prologic im unsure how i feel about the hash v2 proposal, given it is completely backward incompatible with hash v1 it doesn't really solve any of the problems with it. it only delays collisions, and still fragments threads on post edits

@zvava@twtxt.net It is just completely impossible to make v2 backwards-compatible with v1.

Well, breaking threads on edits is considered a feature by some people. I reckon the only approach to reasonably deal with that property is to carefully review messages before publishing them, thus delaying feed updates. Any typos etc., that have been discovered afterwards, are just left alone. That’s what I and some others do. I only risk editing if the feed has been published very few seconds earlier. More than 20 seconds and I just ignore it. Works alright for the most part.

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Great. Yet another messed up plain text e-mail part. The URL was actually HTML-escaped. Took me five attempts to figure this out, because of course it had to be several kilometers long. In fact, the e-mail stated: ā€œPlease do not be surprised that the link is particularly long. It contains your personal configuration.ā€

A normal person is completely lost (that’s why I got involved). Visting the broken URL opens a popup dialog suggesting to deactivate script blockers. Which I had already done upfront as a matter of prudence.

Fun bonus on top: The JWT in the link has identical iat (issued at) and exp (expiry) claims. The expiry is definitely not checked, it’s well in the past.

Medical software just has to be horrible. It’s a law.

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In-reply-to » @lyse no, as mentioned this "diagonal arrow" eye shape, is usually used for a smug expression. The optional white part, is in this case, where the dogs sclera would be visible, while they have their eyes, like this. Here is a comparison between a real dog, making the face it is based on, and the exaggerated drawn version. Media

Thanks, @thecanine@twtxt.net. It’s completely horizontal, I don’t see any diagonals. Anyway, it’s great art, happy drawing!

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In-reply-to » Drawn based on a quick doodle, the canine returns victorious, from the battle of Hot Topic bargain bin, as smug as can be. Whoever will be the first to inform him, the spikes aren't real gold and it's most likely not even leather, meaning it's not what he's really been searching the universe for, better prepare themselves, to be jumped on, bitten and shredded by claws. Media

@thecanine@twtxt.net Yeah, what @bender@twtxt.net said. That tail is sick. Is this dog crying, though? The vertically elongated eye looks a bit like a tear running down.

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In-reply-to » @lyse that's an amazing way to teach, and one many old school (I remember my father telling me "schools need to teach both theoretical and practical skills!") people will agree with. The fact that graduates need to learn on the job after they graduate exemplifies the importance of hands on.

@bender@twtxt.net Absolutely. My computer science teacher was really great and in a lot of aspects very similar. Especially combining the theoretical and practical parts. He’s also the main reason I ended up where I am today. I’m very grateful to him. Mr. Burger, however, takes this on a whole new level.

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