What is Hackers' Pub?

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.

0

I have returned, with tea

I am still not reading notifications. Well, I have seen a few fly by on the fediverse which is blipping and blooping nonstop in the Mastodon UI so people are clearly reading it there

Bluesky says "30+". How big is the +?? I will resist temptation to look and assume "31"

0
0
0
0
0

Actually something that is funny about ActivityPub is that there's "ActivityPub the spec", which I think is pretty solid for the most part, and "ActivityPub-as-deployed"

Many of the critiques I'm about to lay out we left holes in the spec for which I hoped would be filled with the right answers

One thing we have already discussed so, before I will say anything else, I will repeat: content addressing is really good, and I'd like to see it happen in ActivityPub, and it's *possible to do*, I even wrote a demo of it gitlab.com/spritely/golem/blob

Bluesky does the right thing here, AP should too

0
0
0

This isn't the only time I left a critique of ActivityPub-as-Deployed as opposed to ActivityPub-as-it-could-be: see also OCapPub, which critiques the anti-abuse tools of AP as inadequate and leading to "the nation-state'ification of the fediverse" gitlab.com/spritely/ocappub/bl

Oh, and ocaps!!!

0

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

0

Before we get into the next section, earlier I left an easter egg, which you could reply to and say "I found the easter egg" or something

Now you can put 2 eggs

I 2 was once an egg

(Look I specifically transitioned so I could never be accused of making dad jokes again so that does not qualify)

0
0
0

Let's leave the ocap stuff to the side for now, then. Let's focus on what Bluesky and the fediverse have to learn from each other.

- The fediverse should adopt content-addressed storage and decentralized identity
- Bluesky should adopt real, actual federation and decentralization

0

The other time I wrote about ActivityPub + ocaps was in a proposal to, yes, Twitter's Bluesky process in 2020 with Jay Graber titled... "ActivityPub + OCaps"! gitlab.com/-/snippets/2535398

I think that document laid out all the right ideas for *the fediverse* (not saying bsky, the fediverse)

0
0

End of an era for me: no more self-hosted git

Link: kraxel.org/blog/2026/01/thank-
Discussion: news.ycombinator.com/item?id=4

Thank you, AI¹

Ok, it is over. End of an era for me. No more self-hosted git. I had a public git server running since 2011, and a public cvs server before that. AI scrapers have hammered the poor, little server to death by flooding the cgit frontend with tons of pointless² requests. Actually a few months ago already. Now I finally decided to not try rebuild the server, be it with or without cgit web frontend. I don't feel like taking up the fight with the scrapers in my spare time, I leave that to people who are in a better position to do so. Most repositories had mirrors on one or two of the large gitforges already. Those are the primary repositories now. Go look at gitlab and github. Last week I've fixed all (I hope) dangeling links to the cgit repsitories to point to the forges instead. Now I'm down to one self-hosted service, which is the webserver hosting mainly this blog and a few more little things. In 2018 I've migrated the blog from wordpress to jekyll, so it is all static pages. Taking this out by AI scrapers overloading the machine should be next to impossible, and so far this has hold up. Nevertheless AI scrapers already managed to trigger one outage. Apparently millions of 404 answers where not enough to convince the bots that there is no cgit service (any more). Apache had no problems to deliver those, but the logs have filled up the disk so fast that logrotate didn't manage to keep things under control with the default configuration. Fixed config. Knook wood. ¹ Title inspired by the 2025 edition of Security Nightmares. Fun watching if you speak german. ² Most inefficient way to get the complete repo. Just clone it, ok?

www.kraxel.org · 🇺🇦 kraxel’s news

0
0

Here is your recipe for making the "Correct Fediverse IMO (TM)":

- Integrate ocaps, which is possible because actor model + ocaps compose
- Content addressed storage!
- Decentralized identity (notice the *y*, I did not say DIDs) on top of ~mutable CAS storage
- Petname system UX

(cotd...)

0
0

Spec-wise in ActivityPub, I think it's possible. The ecosystem, as deployed? I think the ecosystem can and will only do part of it, if we really get everyone excited, maybe the content addressed storage and decentralized identity parts, in which case the fediverse will also survive nodes going down

0
0
0
0
0
0

To the end of the fediverse, perhaps I sound bitter, "they didn't adopt ActivityPub the way *I* saw it!"

The truth is that Mastodon didn't, but Mastodon also saved ActivityPub. It then painted a vision of the future that wasn't, at least, what Jessica Tallon and I expected of it. But it saved AP.

0

Of course, adapting an existing system as deployed isn't easy.

I will say though that I think if Bluesky were to become *actually decentralized* it would look a lot like ActivityPub in terms of having directed messaging. This will also introduce similar challenges around eg replies, etc.

0
0
0

The fediverse and Bluesky, at great effort, could learn a lot from each other in the immediate term.

In the longer term, neither is implementing the ocap vision I think is critical for the big vision, and in a way, I think maybe neither can be easily rearchitected to achieve it. Well, not yet.

0

Remember when I said that IMO @jay.bsky.team is the right person to lead Bluesky and that I am sympathetic with many design decisions of Bluesky (even if critical of them for being non-decentralized)?

Bluesky is building what they can for a scale big objective. The tech flows from goals.

0
0
0

So too does the social structure flow from the tech. It does on Bluesky, and it does on the fediverse.

I won't elaborate further on this, I actually would like you to pause and think about it. In which ways are tech and social systems bidirectional, here and otherwise? It's important.

0
0

Before I get any further, I just want to say that the Spritely Institute is a 501(c)(3) nonprofit, your donations are tax-deductible in the US!

And we have a few different donor levels... some of them even let you get your name in video game credits! (More on that in a few!)

four different donor levels: $10/month, $20/month, $50/month, $100/month, each level with its own pixel art
0
0
0
0

I laid out definitions of "decentralization" and "federation", and Bluesky meets neither, without major rearchitecting or moving the goalposts on those terms, which I cannot accept.

However, "credible exit" is a good goal for Bluesky. Bluesky created that term and it's a good and feasible goal.

0
0
0

I don't know about you, but there's a lot about the world today that worries me. I don't think building decentralized versions of Web 2.0 era social networks is going to get us there.

We need tech that's secure, that's robust.

We need tech that's *participatory*.

We need tech for you and me.

0
0
0
0
0
1
0
1

家具チェーンがチューナーレスのテレビを発売していることが話題だけど、IODATA とかのディスプレイでも同じことができる気がするけども・・

0
1
0
1
0
0
0
0
0
0
0
0
1
0
1
0