Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.
치과 가서 멘탈에 상처받았어 자고 일어나도
B0展示してみるとな
그럼 도대체 최소 필수 부품에는 얼마가 들어간겁니까? "310,000원!" 20만원이 거의 필요 없는 오지출 부품과, 장비, 그리고 장식들(...)
moje webová stránka je teď hostovaná u 
@oscloud 
A2判ってA3の倍と考えると割と小さいよな
雪の冷たさとETERNAブリーチバイパスは合うと思うのよね
In #Oldenburg gibt es seit vielen Jahren jeweils am 30. April Rock gegen Rechts. Jetzt ist den Organisator*innen leider die Foerderung gestrichen worden und es wird fleissig Geld gesammelt. Eine gute Sache, wo es sich lohnt etwas in den Hut zu werfen:
Windows Notepad App Remote Code Execution Vulnerability
Link: https://www.cve.org/CVERecord?id=CVE-2026-20841
Discussion: https://news.ycombinator.com/item?id=46971516
深夜にこれを
Hear 
@bagderdaniel:// stenberg:// , Founder of The cURL project, discuss the rise of AI Slop in open source on 
@redmonk 's MonkCast. As one of the most vocal #oss maintainers confronting this issue (curl recently ended its bug bounty program due to the surge of low-quality AI submissions), Daniel offers a candid perspective on what AI code generation means for maintainers, contributors, and the future of open source: "it's important to not get stuck on the AI part but on the abuse part." https://redmonk.com/videos/daniel-stenberg-ai-onslop/
“일자리 줄면 소비도 꺾인다” AI 시대 노동의 딜레마
로봇은 인간의 도구일 뿐이라는 아마존의 화려한 수사 뒤에는, 현장에선 노동 강도를 높여 인간을 기계화하고 본사에선 AI를 앞세워 대규모 숙청을 단행하는 ‘비정한 자동화’의 역설이 숨어 있다.
“일자리 줄면 소비도 꺾인다” AI 시대 노동의 딜레마
I'm way overdue in posting this but here is a recap of our work on the Django Steering Council in 2025 https://www.djangoproject.com/weblog/2026/feb/11/steering-council-2025-year-in-review/
あれもいいこれもいいで迷っちまうんだぜ
うーん・・・
People new to deployment have always been nervous about unanticipated spikes in costs.
I think this snippet from an HN comment points to why those fears are still quite reasonable:
> Just a few years ago badly behaved scrapers were rare enough not to be worth worrying about. Today they are such a menace that hooking any dynamic site up to a pay-to-scale hosting platform like Vercel or Cloud Run can trigger terrifying bills on very short notice.
これも再現像してみたけどちょっとの違いで写真の印象が変わりますね
커미션 작업 했습니다.
If you want to learn how to build AI on-device apps, in this playlist I show you how to set up Foundation Models in iOS 👇🏻 #iosdev
https://www.youtube.com/playlist?list=PLHWvYoDHvsOWaOKgUHTPOLM_11tUO2eBz
見に来るだけでも全然OKなんで。むしろ見に来てほしい。誰とも会話せずに見るだけ見て帰るとか普通にアリなんで。今回は会場広く取ってるから前回みたいなぎゅうぎゅうみたいなことは無いと思われますし。
Modular Monolith and Microservices: Modularity is what truly matters (2023) https://lobste.rs/s/6yn5pe #scaling
https://binaryigor.com/modular-monolith-and-microservices-modularity-is-what-truly-matters.html
前回全紙サイズにしたんだっけ…
今回A2を2枚でも良いかな……(運搬的に)
젠레스 이벤스 스샷
엔젤디귀여운
헐?
ありえんくらい存在感あっておもろい
Furthermore, I think Bluesky is providing something valuable: a lot of people are trying to leave X-Twitter *right now* because it has become a completely toxic place.
The fact that Bluesky's team has managed to scale to receive such users is incredible, nearly feeling miraculous.
On the fediverse we also see a lot of accusations of Bluesky being owned by Jack Dorsey, and this isn't true. My understanding is that Jay performed an impressive amount of negotiation to allow Bluesky to receive funding independently.
These days Jack Dorsey is instead focusing on Nostr, which I can only describe as "a sequel to Secure Scuttlebutt with extremely bad vibes where bitcoin people talk about bitcoin"
I participated a bit in the process of when Bluesky was Jack Dorsey and Parag Agrawal's personal project. I also believe Jack and Parag were sincere about Bluesky as a decentralized social network protocol that Twitter would adopt, which is the directive that Bluesky was given as an organization.
When Jay Graber was awarded the position to lead Bluesky, I was not surprised. To me, Jay was the obvious choice to deliver what Bluesky was being directed, and I do think Jay is an excellent leader
There is also something which Bluesky gets right which the fediverse does not. I mentioned that Bluesky uses decentralization *techniques*, and the most important of those is content-addressing. This allows content to exist even when a server goes down.
This is a great decision and I have advocated that the fediverse do so as well. In fact several years ago I wrote a demo in 
@spritelyThe Spritely Institute's early days showing off how one could build a content-addressed ActivityPub in a spec-compatible way.
Remember that the idea of "fully self-hosting" on Bluesky/ATProto at this point is primarily abstract; nobody is really doing it. But of course there's a place where tens of thousands of people are running their own servers for millions of users, and that's the fediverse/ActivityPub.
As said, tens of thousands of people are self-hosting *today*. Fediverse software doesn't just scale up, it scales *down*.
GotoSocial is cheap enough on resources where you can run it for family and friends on a raspberry pi or spare laptop you have sitting around.
As said, tens of thousands of people are self-hosting *today*. Fediverse software doesn't just scale up, it scales *down*.
GotoSocial is cheap enough on resources where you can run it for family and friends on a raspberry pi or spare laptop you have sitting around.
Now you're hitting the point in this thread where some of you may be thinking "aha! this is where Christine is saying that the fediverse/activitypub are awesome and atproto is terrible!"
you have NO IDEA HOW MUCH I CRITICIZE THE FEDIVERSE ALL THE TIME, I do it all the time, and will later here
사혼의 연친들을 찾아요
@racoonisrunaway@stella.place[충동:망상] 발베 
이 사람이였어요
이별한 연친들을 찾아요 리노트 감사합니다...
이참에 연친해주셔도 됩니다...
Now you may be saying, "Christine, this is really unfair, because you're looking at ActivityPub servers which are only dealing with a small amount of the network, what if it were an ActivityPub mega-node? What are the costs THEN huh?" and "What if we hosted just PART of ATProto?"
What then INDEED
ATProto is not designed for the Relay and AppViews to only hold part of the network, not *really*, and ActivityPub is. We'll get to this in a moment.
But Bluesky actually has good justification for this! I will defend it insofar as Bluesky was making a serious *design decision*
The thing you often get seen thrown around is "it's amazing, I had no idea a decentralized protocol could just work like that! How on earth did they solve that in a decentralized system and so FAST too!"
It's simple: all those things "just work" because Bluesky is centralized.
Now yes, they are using decentralized techniques. Remember when I said content-addressed storage is a good idea and the fediverse should do it too? IT IS! (And as I also said, it's actually fully possible for the fediverse to do, more on that later.)
But the reality is, it's still *centralized*
Now you're hitting the point in this thread where some of you may be thinking "aha! this is where Christine is saying that the fediverse/activitypub are awesome and atproto is terrible!"
you have NO IDEA HOW MUCH I CRITICIZE THE FEDIVERSE ALL THE TIME, I do it all the time, and will later here
The fediverse has a lot of flaws. Oh trust me, we're gonna get to that.
But comparison-wise: what I mean to say is that architectural decisions matter, and scaling up isn't the only thing that's important, *scaling down matters too*.
If you care about decentralization, anyway.
But where was I? Oh yes. We had talked about why PDS'es aren't enough (blog/google analogy), relative costs of hosting things on ATProto vs ActivityPub, etc etc
But we haven't gotten into the really interesting parts which are the structural analysis stuff, so let's move onto that
Now you may be saying, "Christine, this is really unfair, because you're looking at ActivityPub servers which are only dealing with a small amount of the network, what if it were an ActivityPub mega-node? What are the costs THEN huh?" and "What if we hosted just PART of ATProto?"
What then INDEED
And before we make it any further can I say that I watched a nice medley of David Bowie and Cher singing, and it was so lovely https://www.youtube.com/watch?v=KPlN8RBP-Ws
@mlemwebDr. Morgan Lemmer-Webber said "of course it's very heteronormative despite having two queer coded icons on the stage and ISN'T THAT THE WAY I guess
But where was I? Oh yes. We had talked about why PDS'es aren't enough (blog/google analogy), relative costs of hosting things on ATProto vs ActivityPub, etc etc
But we haven't gotten into the really interesting parts which are the structural analysis stuff, so let's move onto that
But here's the other thing. People have trouble with the fediverse! All those decentralization decisions get in the way, my god, you've got to choose a server, search doesn't work well (actually it could but it's a cultural thing, different topic), and worst of all:
Sometimes you DON'T SEE REPLIES!
Actually all these critiques of the fediverse are TRUE, these are known challenges, and actually it's not really so bad, but it could be better, and at any rate, Bluesky made a major decision to simplify a lot for new users, and they have. Things seem to just work for people! Incredible!
Here's my definition of federation:
> Federation: a technical approach to communication architecture which achieves decentralization by many independent nodes cooperating and communicating to be a unified whole, with no node holding more power than the responsibility or communication of its parts.
Now historically, federation has been achieved on the fediverse via "message passing". Actually, this is to the degree where I just always associated message passing with federation, but really, federation is about the distribution of power, creating an abstract whole in a sea of autonomy.
On top of "message passing" we will build "publish-subscribe" as a second-layer abstraction
"Your ideas are interesting and I'd like to subscribe to your newsletter."
You send me a letter saying you'd like to hear the things I have to say, okay, you're part of the reader list. That's how it works.
On top of that we can build even more abstractions and the net result is that this is how federation works in pretty much every "federated" system I know.
ActivityPub does some extra work to help you see replies on a thread, think "letters to the editor". This is a bit lossy sometimes though
So let me introduce two models of communication which we can use to analyze these two systems. It's important!
- Fediverse/ActivityPub: "message passing"
- Bluesky/ATProto: "shared heap"
Okay, cool, terms established, let's talk about them and why they matter because they matter A LOT
"Message passing" is what ActivityPub uses. It's "like email", people say, and that's true.
Actually it's even a lot like physical mail. You write a letter, you say where it should go, it gets delivered to your house.
Message passing. The world runs on it.
Maybe there is another way to achieve federation, but it's about the power dynamics. It's a technical immersion of power dynamics, the flow and interchange of cooperation between many parts.
So you may say, well, doesn't ATProto have that? After all, messages flow through the different parts!
ActivityPub, as it turns out, follows the actor model of computation. Okay, many people implementing the fediverse don't know about the actor model aspect of ActivityPub but I am here to tell YOU, dear reader, that it is an important thing, not a detail
ActivityPub, as it turns out, follows the actor model of computation. Okay, many people implementing the fediverse don't know about the actor model aspect of ActivityPub but I am here to tell YOU, dear reader, that it is an important thing, not a detail
I'll take one more note about federation which is that often time the message passing mechanism of the fediverse is often called "federation", but theoretically another mechanism could exist, but I'm actually not so sure of that.
There's a reason the actor model and the lambda calculus are undying
It's true that sometimes users click over to a thread and see some replies but not all on their instance's UI. There's things that could be done to improve it, but it's sometimes mildly confusing, but not so bad, and you can click over typically to see whatever else is happening, and people learn to
I actually think this is improvable but I mostly don't care because this isn't as big a complaint as people tend to think it is on the fediverse, the other concerns like "what instance do I pick" tend to be bigger and "oh no my server went down"
That can be improved, we'll talk about that later
On that note, again, I am not reading the replies right now because I am (a) afraid to and (b) I'm never gonna finish this and we are a bit over HALFWAY THROUGH the analysis but I have this fear that EVERYONE is mad at me, Bluesky fans, fediverse fans
I am trying to be analytical. I am trying!!!
I said we are about halfway through and criminy we're halfway through the afternoon, I need a break to get some tea
We have a few big topics left:
- Decentralized identity, how does it work (magnets too, yes)
- The Org is a Future Adversary
- Christine critiques the fediverse
- Wrap up
But to Bluesky's credit, Twitter's DMs aren't decentralized either! And getting and shipping something that works, now for the influx of Twitter users, again... I am sympathetic
Bluesky's team is doing an INCREDIBLE JOB in that way of scaling to meet the incoming stream of Twitter refugees
On that note, again, I am not reading the replies right now because I am (a) afraid to and (b) I'm never gonna finish this and we are a bit over HALFWAY THROUGH the analysis but I have this fear that EVERYONE is mad at me, Bluesky fans, fediverse fans
I am trying to be analytical. I am trying!!!
Alright you've heard enough critiques of Bluesky for a bit and I SAID I was gonna critique the fediverse and I am a WOMAN OF MY WORD
So let's get into it!
I have actually critiqued ActivityPub and the fediverse a lot! I have kind of never stopped critiquing it, ever since the spec was released. There's a lot that can be improved!
I have even gotten criticism from AT LEAST ONE ActivityPub spec author for critiquing AP-as-deployed but I do anyway
🕊️ 
Jan Lehnardt 
Inside Fediverse
발베 
The Rt. Rev. Fumire, Ph.D. 
