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.

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Fediverse Report – #145

The News

Holos, from the same developer as fediverse client Fedilab, is a project that enables running a full ActivityPub instance directly on a smartphone. It pushes the “own your data” ethos further than typical self-hosting, where your data lives entirely on your device rather than a server. Running a server on a smartphone comes with a challenge however, as mobile devices can’t host stable servers because their public address changes constantly. Holos solves this by running a relay server, which provide a stable identity and proxies requests to the phone’s changing address. This approach creates interesting tradeoffs, as users gain greater control over their data but they’re only reachable when actively online. And while Holos decentralises data storage for individuals, your social address (@username@server.social) depends on the relay, which creates a new dependency. The project is still in its early stage and is actively being developed, but it’s refreshing to see the boundaries of how ActivityPub can be used being pushed.


Last week I wrote about Threads usage numbers, and how I was trying to square Threads’ claim of 400M Monthly Active Users (MAU) with a new Pew Research study that found that 21M US adults ever have used Threads. I asked on Bluesky: “So where are the other 380M users located? Taiwan apparently has an active Threads community, but where else?” Quite a few people from multiple other Asian countries chimed in to point out that Threads has become one of the major social networks in their country, people from the Philippines, India, Indonesia and Kazakhstan pointed out. One comment specifically stood out to me, where someone pointed out that Threads’ algorithm is good at surfacing local content while keeping US-politics news out. This would explain both the appeal of Threads to Asian communities, especially in contrast with X, as well as why Threads seems to have relatively low cultural impact in Western countries. The selective filtering of Threads algorithm makes interactions between the Western communities and Asian communities less likely.

Another realisation was that the raw comparison of 21% “ever used” for X versus 8% for Threads is misleading because it ignores platform age: X has had 18 years to accumulate users while Threads has had about two and a half. I initially tried to reconcile these figures with the roughly equal DAU numbers by calculating what annual churn rate would produce this outcome, and landed on around 6%. But 6% annual churn is implausibly low for microblogging platforms, where people routinely create accounts, poke around, and leave, and real churn rates are substantially higher. This means that the numbers Pew Research found actually favour Threads here: achieving 8% “ever used” in such a short timeframe while maintaining competitive daily active users suggests Threads is acquiring and retaining users at a pace that outstrips what the surface-level comparison implies.


IFTAS has an extensive look at Australia’s eSafety Act that comes into force on December 10th, and the organisation has published a detailed guide for social networking site operators what the law expects from them. IFTAS writes that “It appears relatively likely that eSafety has little desire to actively enforce compliance on small Fediverse servers if they follow the guidelines below.” As for the guidelines, IFTAS suggests that servers publish a clear Terms of Service with a stated minimum age policy of 16+, set up moderation workflows (good ideas regardless), and have a “short policy statement on how under-16 users will be prevented or removed (if you are running a service that is inappropriate for children)”.


An interview with Mastodon creator Eugen Rochko, and now that Rochko has stepped down as CEO, it feels like there are some more open takes by him, and the interview is worth reading. On ActivityPub protocol, Rochko says: “ActivityPub is essentially a language. Or rather, it’s a vocabulary, and what developers and the federalists have been doing is defining grammar. […] But when you want to do something more advanced, like when you need some agreement, and you can use the same vocabulary, but you have different grammar, you can’t understand each other.” I think Rochko gets close to the core of the challenge of growing the fediverse here: using ActivityPub depends on agreement and collaboration between different platform developers, but the fediverse does lack the social infrastructure for structural communications and collaborations. While there is the system of Fediverse Enhancement Proposals, it is far from enough to be the substrate of a network that requires a shared language for collaboration between platforms. This is one of the main points of interest for me how the new Mastodon leadership will see their role in the network here: due to their size the Mastodon organisation holds significant influence in how the structure of collaboration between fediverse platform developers functions in practice.


Stegodon is an SSH-first microblogging server built with Go. Users connect via SSH, authenticate with their public key, and compose posts in a terminal interface that then federates to the fediverse via ActivityPub. It’s a deliberately minimal approach to fediverse participation, targeting users who prefer terminals over browsers. The project’s developer is now experimenting with replacing HTTP-based federation entirely with Git, using push and fetch operations to synchronise posts between instances. The developer presents this as an alternative for small-scale social networks, and using Git also comes with challenges: Git pull-based model means no real-time delivery, and it’s immutable history conflicts with deletion and moderation needs. It is an interesting experiment, but with rather fundamental limitations.

The Links

connectedplaces.online/reports

detail of a building in Brussel Belgium
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넷플릭스가 이번 워너 브라더스 인수에는 "워너 브라더스 게임즈"가 포함되어 있음을 확인해줌 A Warner Bros. spokesperson has confirmed the video game division will be acquired by Netflix alongside its wider streaming and television business. www.gamedeveloper.com/business/yes...

Yes, Netflix is acquiring Warn...

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となると、写真としてはどっちが現状のテクノロジーではノイズ耐性に効いてくれるんだろう、というのが気になっちゃうんですよねぇ...(特に天体撮ってる時は)
これの答えが出てなくて永遠に彷徨い続ける
:blobcat_swim:

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EU(유럽연합), '기만적인' 파란색 인증 마크에 대해 X(트위터)에 1억 4천만 달러의 벌금을 부과 EU 기술 책임자는 파란색 인증 마크를 악용하여 사용자를 속이거나, 광고 정보(비용 지불자, 타겟 등)를 숨기거나, 플랫폼 연구를 위한 연구자들을 차단하는 행위는 EU 내 온라인에서 용납될 수 없다고 밝힘

RE: https://bsky.app/profile/did:plc:fbtvg6jxtdroidfvq5z635xu/post/3m7ajktyn6k2a

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これ二律背反なようで、違う内容を言ってるから、どっちも正解でしょ
前者は物理法則の話で、後者は後処理適性の話

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<center>:blobcat_step:</center>


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望遠車載って、いたずらに視点が上下左右に振られて見られたもんじゃないと思う​:blobcat_guruguru:

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SolidJS로 앱 만들다가 아이콘셋이 필요해져서 패키지를 뒤져보는데, 마이너 생태계답게 마지막 업데이트가 삼사년 전인 패키지들만 나온다. 아이콘셋에 업데이트가 필요 없긴 하지. 그래도 최근에 업데이트 된 패키지가 걸리적거리는게 없을 것 같달까. 그러다 활발히 업데이트 중인 unplugin-icons를 찾았다. 이것은 SolidJS용 패키지가 아니었다. 아이콘셋도 아니었다. 거의 모든 아이콘셋을 거의 모든 프레임워크에서 사용할 수 있게 해주는 도구다. 이런 문물이 있었다니. 누가 만들었나 함 보자. 제작자는 Anthony Fu... 아아 또 그인가. 오늘도 비 React 웹 생태계엔 Anthony Fu의 은혜가 넘친다.

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EU(유럽연합), '기만적인' 파란색 인증 마크에 대해 X(트위터)에 1억 4천만 달러의 벌금을 부과 EU 기술 책임자는 파란색 인증 마크를 악용하여 사용자를 속이거나, 광고 정보(비용 지불자, 타겟 등)를 숨기거나, 플랫폼 연구를 위한 연구자들을 차단하는 행위는 EU 내 온라인에서 용납될 수 없다고 밝힘

RE: https://bsky.app/profile/did:plc:fbtvg6jxtdroidfvq5z635xu/post/3m7ajktyn6k2a

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ノイズ耐性、正直何もわかってない


・受光素子の物理的サイズによる許容量の違いがそのまま高感度ノイズの耐性に寄与する
・画素ピッチを細かくすることにより、単位面積の画素記憶量が上がる。これによりノイズ影響を統計的に削減することができるので高感度ノイズ耐性に寄与する

どっちも正解に聞こえてしまう

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ちっさいらくがき、いつもの調子でーす。
ダンジョンマスター、ネバーランドのカボチャ男、ロマンシア、クイーン・オブ・デュエリスト。
ロマンシアって聞くとひとこと言わないと気が済まないのか、今でも注目を集めますよね。
あと、ダンジョンマスターの広告とかで見るこの人、いつ見てもなんか微笑ましく思う。

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