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.
Cryptographic public-keys are one way that one can have an identity (on the Fediverse, and elsewhere) while also having privacy — through a pseudonymous identity.
Yes, we have Fediverse IDs such as:
＠joeblow＠example.com
But a (non-delegated) public-key can function as a PORTABLE form of identity on the Fediverse.
#ActivityPub #Cryptography #Fedidev #Fedidevs #Fediverse #JSONLD
In his #rustconf 2025 talk, "From Blue Screens to Orange Crabs" Mark Russinovich shared how Rust is being adopted across large, established platforms at Microsoft Azure — from security improvements to real integration challenges. Revisit this memorable #rustconf moment here:
https://www.youtube.com/watch?v=uDtMuS7BExE
Following its launch in 2025, the #OpenTelemetry eBPF Instrumentation (OBI) project is planning for an exciting 2026! Read our latest post to learn about the project's goals and how you can get involved with OBI.
햄써타가 몰아주는 신화생물 시날에 미카를 데려가몬 되겟구만
While working on #Fedify, I noticed something about how #Misskey handles #ActivityPub object access. When a remote server requests a followers-only post or DM with a valid HTTP Signatures (draft-cavage) from an authorized actor, Misskey still returns 404 instead of the content. It seems Misskey only checks the visibility field (public/home) without verifying the signature at all.
#Mastodon takes a different approach—when #authorized_fetch is enabled, it validates the HTTP Signatures and returns the content if the requesting actor has permission. I think it would be beneficial if Misskey could adopt a similar mechanism, since it would better respect the access control semantics that ActivityPub intends. Has anyone else run into this, or are there specific reasons Misskey handles it this way?
julian shared the below article:
julian @julian@activitypub.space
<p>Can you guess when I turned Anubis back on?</p> <ul> <li>Grey line (left-hand; y-axis) tracks page views</li> <li>Blue line (right-hand; y-axis) tracks unique users</li> </ul> <p><img src="https://activitypub.space/assets/uploads/files/1769183491489-6fef34a9-80f9-4b9f-b266-212a31f486cb-image.png" alt="6fef34a9-80f9-4b9f-b266-212a31f486cb-image.png" /></p> <p>You can even see the spike in traffic that brought down the site hard enough that I got my butt in gear to tune Anubis and turn it back on.</p> <p>Based on the numbers here, there is a thirteen-fold decrease in activity (or a ~92% drop in traffic), all identified by Anubis as bots and blocked.</p>
Read more →Douglas Adams on the English–American cultural divide over "heroes"
Link: https://shreevatsa.net/post/douglas-adams-cultural-divide/
Discussion: https://news.ycombinator.com/item?id=46719222
Radicle: The Sovereign Forge
Link: https://radicle.xyz
Discussion: https://news.ycombinator.com/item?id=46732213
#mastobada soir (tonight 🇬🇧 )
City hunter || Kiyomi Suzuki - give me your love tonight
It's gettin' late now
I'm wide awake now
A lover's moon on the rise
I'm feelin' restless
A little breathless
Will you be comin' tonight ?
https://www.youtube.com/watch?v=bm2A207GxPc&li
#cityhunter #suzukikiyomi #kiyomisuzuki #anime #musique #music
julian @julian@activitypub.space
<p>Can you guess when I turned Anubis back on?</p> <ul> <li>Grey line (left-hand; y-axis) tracks page views</li> <li>Blue line (right-hand; y-axis) tracks unique users</li> </ul> <p><img src="https://activitypub.space/assets/uploads/files/1769183491489-6fef34a9-80f9-4b9f-b266-212a31f486cb-image.png" alt="6fef34a9-80f9-4b9f-b266-212a31f486cb-image.png" /></p> <p>You can even see the spike in traffic that brought down the site hard enough that I got my butt in gear to tune Anubis and turn it back on.</p> <p>Based on the numbers here, there is a thirteen-fold decrease in activity (or a ~92% drop in traffic), all identified by Anubis as bots and blocked.</p>
Read more →A while back I wrote a blog post about what knitting means to me and how I think it can be a good hobby for tech folks. A few readers rightly said it would be better with photos, so I went back and added a bunch:
https://journal.stuffwithstuff.com/2025/05/30/consider-knitting/
Callout component (#37590) by ChaosExAnima has been merged! https://github.com/mastodon/mastodon/commit/c1414f1161b5fc1b8b6755d22b76415c82b64d7c
2/
To handle public-key cryptography safely, often a user should be able to have multiple public-keys.
For example, a user might have a different public-key on each device, rather than sharing public-keys.
A user might delegate to a 3rd party — and there may be a delegated versus non-delegated public-key distinction.
Key-rotation is also often necessary for safety reasons.
Etc.
...
#ActivityPub #Cryptography #Fedidev #Fedidevs #Fediverse #JSONLD
3/
All that requires that a Fediverse user can have multiple public-keys specified for them.
...
Although https://w3id.org/security/v1 seems to allow for multiple public-keys —
I wonder how much Fediverse software could actually handle multiple public-keys (rather than just one)?
(And, don't just assume one public-key?)
How mucg Fediverse software could handle public-keys changing over time?
Etc?
#ActivityPub #Cryptography #Fedidev #Fedidevs #Fediverse #JSONLD
1/
One way ActivityPub can be extended is — through JSON-LD namespaces.
For example, many Fediverse servers use the following JSON-LD namespace to specify cryptographic public-key(s) for the user.
(This particular namespace is an HTTPS URL.)
...
But, does extant Fediverse software support cryptographic public-key(s) well?
...
#ActivityPub #Cryptography #Fedidev #Fedidevs #Fediverse #JSONLD
2/
To handle public-key cryptography safely, often a user should be able to have multiple public-keys.
For example, a user might have a different public-key on each device, rather than sharing public-keys.
A user might delegate to a 3rd party — and there may be a delegated versus non-delegated public-key distinction.
Key-rotation is also often necessary for safety reasons.
Etc.
...
#ActivityPub #Cryptography #Fedidev #Fedidevs #Fediverse #JSONLD
1/
One way ActivityPub can be extended is — through JSON-LD namespaces.
For example, many Fediverse servers use the following JSON-LD namespace to specify cryptographic public-key(s) for the user.
(This particular namespace is an HTTPS URL.)
...
But, does extant Fediverse software support cryptographic public-key(s) well?
...
#ActivityPub #Cryptography #Fedidev #Fedidevs #Fediverse #JSONLD
Finished is better than terrible #oldknees
This weekend I'll have something to read.
This looks interesting: https://radicle.xyz/
For the benefit of people on various illumos distributions (x86 for these) that might not provide a current jdk build (or who are on old releases and are unable to update) I've put up some builds of the latest jdk 11/17/21/25 LTS update releases for download here:
Today's politicians are the human version of Large Language Models: they just predict the next word you want to hear, regardless of the truth.
Another #PublicDomainFriday, another gem! This piece, from "The Blood Collages of John Bingley Garland (ca. 1850–60)" is available from the Harry Ransom Center!
Share your own favorite work at the end of each week with us using #PublicDomainFriday!
when using #brow6el #linux #terminal #webbrowser in #kittyterminal (yes we now support kitty image protocol) the YT video is almost like in "normal" browser.
寝るね！
髪の毛弄っていたら無駄に左右対称にツインテールできて草
How can I integrate with Oxide Computer? FAQ Friday #34
🦊 Firefox 147 is here! What's new?
✨ CSS Anchor Positioning enabled by default
🚀 WebGPU on all macOS with Apple Silicon
🧭 Navigation API for better SPA control
🎨 DevTools improvements for pseudo-elements & animations
and more...
Release notes 👇
https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/147
Episode 176: Cas and 
@BennettTomlin are joined by 
@molly0xfffMolly White to discuss the $TRUMP wallet and the infighting in the corrupt crypto enterprises of the Trump family https://cryptocriticscorner.com/2026/01/23/episode-176-molly-white-v-trump-crypto-corruption/
This bizarre, hurried cut-and-paste Bluesky clone called "W" (wsocial.eu) says it will fill this huge gap in Europe where no social media platforms exist.
Meanwhile... https://umap.openstreetmap.fr/en/map/fediverse-near-me_828094#3/25.80/29.79
@jazjaz 
Maybe it's a nod to the power of the fediverse: all these instances (even m.s) are so small they disappear once you zoom out enough on the map with very little power concentration compared to the logos listed 🙂
RE: https://mastodon.social/@mellifluousbox/115940074653262910
executive director of mastodon's take on w social
Apropos of nothing, a Trump-voting relative of mine (and Navy vet) recently called and said he was a) sorry and b) thinking about relocating out of the country.
remote school today because of the cold and every “can you hear me” literally triggers PTSD from the year of zoom school
Measures like GDP, in addition to not measuring the thing that you care about, may not measure the thing that they think they're measuring.
For example, apparently the US GDP grew by 2.55% in 2025 (some things are not fully reported, disclaimers about partial data apply). But this is measured in US dollars. The US dollar is down 11% against the EURO over the same period. It's down almost 9% against the British Pound. Down over 4% against the Canadian dollar. It's down over 4% against the Chinese Yuan, a currency issued by a central bank that intentionally controls the quantity to keep its value closely tied to a dollar.
Measured in pretty much any unit except US dollars, the US GDP has shrunk since Trump took office. If you measured the US economy in Euros, Pounds, or Yuan, the US economy meets most definitions of being in recession.
But the fact that most of this is hidden in the devaluation of the dollar and reporters never pay attention what units things are reported in.
Note that this also applies to a load of share prices. Quite often, growth in share price of multinational companies is actually a decline in the value of the currency that the company's shares are traded in (see: most reporting about MSFT last year).
에서는낮 동안 우리를 활기 있게 하신 저의 주님, 날아다니는 스파게티 괴물 님,
당신과 함께 있으리니, 자는 동안도 지켜 주시어 편히 쉬게 하소서.
"11. 고요한 밤, 주님께서 보이지 않는 체로 저희 삶의 쓸모 없는 근심을 걸러내주소서."
🍝 날아다니는 스파게티 괴물 님께서 여러분과 함께.
😋 또한 주교의 면발과 함께 하소서.
🍝 기도합시다.
저의 주님, 날아다니는 스파게티 괴물 님, 이 밤을 편히 쉬게 하시고, 거룩한 죽음을 맞게 하소서.
2026-01-24T00:56:16+09:00
#날아다니는스파게티괴물님 #성면 #면발 #스파게티 #라멘 #파스타파리안 #성무일도 #성무일과 #매일전례
#FlyingSpaghettiMonster #FSM #HolyNoodle #Noodle #Spaghetti #Ramen #Pastafarian #NoodlyAppendage #Pastafarian #FSMism #FSMist #DivineOffice #DailyOffice #Breviary
2/
To handle public-key cryptography safely, often a user should be able to have multiple public-keys.
For example, a user might have a different public-key on each device, rather than sharing public-keys.
A user might delegate to a 3rd party — and there may be a delegated versus non-delegated public-key distinction.
Key-rotation is also often necessary for safety reasons.
Etc.
...
#ActivityPub #Cryptography #Fedidev #Fedidevs #Fediverse #JSONLD
3/
All that requires that a Fediverse user can have multiple public-keys specified for them.
...
Although https://w3id.org/security/v1 seems to allow for multiple public-keys —
I wonder how much Fediverse software could actually handle multiple public-keys (rather than just one)?
(And, don't just assume one public-key?)
How mucg Fediverse software could handle public-keys changing over time?
Etc?
#ActivityPub #Cryptography #Fedidev #Fedidevs #Fediverse #JSONLD
이런 것을 볼 때마다 '인간 유전자의 가능한 조합이 얼마나 적은데 차라리 지금 태어나 있는 어린이 중 나와 가장 닮은 사람을 찾는 것이 나을지도' 같은 생각을 합니다.
RE: https://bsky.app/profile/did:plc:uabkr6tn7ru4b4e5e6udleuf/post/3m27jxuaeuk2s
It’s Palestinian land. Not Trump’s, Netanyahu’s , Kushner’s or any of the others looking to make a profit from genocide.
https://www.democracynow.org/2026/1/23/trump_kushner_gaza_plan_catastrophic_success
right, scalene, isosceles, dorito-shaped 🤔
great to get through january, you know, to get to february
great to get through january, you know, to get to february
絕讚加班中
煩
Meet GNOME at FOSDEM 2026!
Come and visit our booth, talk with contributors, get some swag! See you there in almost one week!
You can find the booth in building K level 2.
Veganuary jour 23
Salade haricot mungo, oignons, jeunes pousse de mâche, piment jalapeno et sauce salade huile d'olive citron.
Zéro calories (quoi que, il y a de l'huile) mais c'est délicieux.
#AspirantVegan #Veganuary
v0でスマホを振動させるWebアプリを作る: 1回のプロンプトで実装し、Vercelにデプロイ
https://dev.classmethod.jp/articles/v0-vercel-vibration-api-demo/
Veganuary jour 23
Salade haricot mungo, oignons, jeunes pousse de mâche, piment jalapeno et sauce salade huile d'olive citron.
Zéro calories (quoi que, il y a de l'huile) mais c'est délicieux.
#AspirantVegan #Veganuary
The merry world of Web and browsers doesn't slow down, even if the rest of the news has been quiet in January. So here's Reading List 353, sponsored by 
@Vivaldi - the browser that’s cream of the crop, not a stream of the Slop. https://brucelawson.co.uk/2026/reading-list-353/
🫧 socialcoding..
Stefano Marinelli
Tom Casavant
Gabriele Svelto
Inside Fediverse
Quincy ⁂
leyrer
DevelopersIO 
