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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Yes, you may be killed by falling human made space junk, but the odds remain small(ish) that will occur. The (almost inevitable) may also prevent future flights if all those in Low Earth Orbit start colliding, creating countless debris.

However, we *ALL* have to worry about the ‘chemical problem’ being created by SpaceX et al in the upper atmosphere. I have been banging on about this for a while and the attached article summarises the science in an easy to understand way - I have pasted the bit about the ‘chemical problem’ below because we *ALL* need to understand what the billionaires are doing to the planet while we are watching.

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Quote:

Debris on the ground attracts immediate attention, but atmospheric scientists are tracking a slower process with potentially larger consequences. When satellites vaporize in the mesosphere, 50 to 80 kilometers above Earth, they release clouds of vaporized metals that condense into aerosol particles. Those particles descend into the stratosphere, where Earth’s protective ozone layer resides.

Aluminum is the element of greatest concern. Upon reentry, aluminum oxidizes into aluminum oxide nanoparticles. A single 250 kilogram satellite generates roughly 30 kilograms of these particles. Unlike chlorofluorocarbons, which directly destroy ozone, aluminum oxide acts as a catalyst. One particle can facilitate chemical reactions that destroy thousands of ozone molecules over decades without being consumed.

Researchers from the University of Southern California’s Department of Astronautical Engineering documented an eightfold increase in atmospheric aluminum oxides between 2016 and 2022, directly correlating with the proliferation of satellite constellations, a finding reported in detail by CNET. In 2022 alone, reentering satellites released an estimated 41.7 metric tons of aluminum, approximately 30 percent more than the natural input from micrometeoroids.

Projections based on current deployment schedules suggest annual aluminum oxide emissions could reach 360 metric tons, a 646 percent increase over natural background levels, according to research highlighted by Popular Mechanics. Because these particles take 20 to 30 years to descend into the ozone layer, the atmospheric chemistry of today’s satellite fleet will not manifest as measurable ozone loss until the 2040s. By then, the upper atmosphere could already be saturated with catalysts.

NASA high altitude sampling flights over Alaska in 2023 detected the signature of this process. At approximately 60,000 feet, instruments found that 10 percent of stratospheric sulfuric acid particles larger than 120 nanometers contained aluminum and other metals traceable to spacecraft reentries, according to data presented at the American Astronomical Society meeting that year. The atmosphere now bears a permanent chemical marker of human activity in space.
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indiandefencereview.com/starli

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- Users not being able to control who can reply to their posts

The Fediverse having thousands of independent servers is one of its greatest strengths (fedi.tips/why-is-the-fediverse) but also causes whack-a-mole problems when trying to block hate.

If users could pre-emptively restrict who can reply to their post, e.g. followers-only, this would prevent hatemongers from random unblocked servers posting nasty replies.

Github users can vote for this at github.com/mastodon/mastodon/i

🧵 Thread - Part 3 of 7

@FediTips Re: reply controls.

GoToSocial came up with a way (docs.gotosocial.org/en/latest/) to do this. It doesn't “solve” malicious servers, but it lets benevolent servers honor each other's inhabitants' wishes.

I'm drafting a “Fediverse Enhancement Proposal” document to make it easier for other projects to join GTS. It's progressing, but I have day job stuff etc. It might help to add a few collaborators.

Anyone comfortable w/ technical specs similar to this fediverse.codeberg.page/fep/fe & want to help?

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RP 중국분들하고 오래 지내보면 그 뭐랄까 중국분들만의 허세나 이상한 논리가 있다는걸 알게됨다 ㅋㅋㅋ;; 용어가 있을법하기도한데... 하여간 설명하기 어려운데 그분들이 말하는것을 그대로 받아들이면 안됩니다 -_-;

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It is depressing if someone experiences hate on here, especially if it puts them off using this place.

I follow people that regularly raise these issues, to hear how bad it is and what the causes are.

Five things seem to come up most often:

- Lack of representation in software design
- Users not being able to control who can reply to their posts
- Moderation being reactive rather than proactive
- Allowlists vs blocklists
- Cultural problems

Let's look closer...

🧵 Thread - Part 1 of 7

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Is End-to-End Encryption Optional For Large Groups?

One of the recent topics in Messaging App Discourse is whether it makes sense to prioritize End-to-End Encryption when searching for an alternative to Discord. Who's Saying "No"? I'm going to quote 0xabad1dea here, because she is awesome and explains my "opposition" position better than anyone else: So You Want To Write An Open Source Discord Replacement Things you don’t need:

soatok.blog/2026/02/14/is-end-

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직장에서 성장하는 6가지 지혜

1. 실수를 두려워하지 않는다
2. 긍정적인 마인드를 유지한다
3. 꾸준히 배우고 도전한다
4. 존중과 협력을 실천한다
5. 감정을 전문성으로 다스린다
6. 실패를 성장의 기회로 여긴다

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Am I crazy, or is `pwait` totally broken on FreeBSD 15?

I started noticing various daemons not restarting properly. rc.subr calls wait_for_pids, which calls pwait(1) on the daemon's PID. Occasionally, when running `service foo restart`, I'll get an error saying "foo already running!"

After some investigation, it looks like pwait returns a few milliseconds before the process actually terminates.

Caught in the act...this should NOT be possible:

$ kill 97891; pwait 97891; ps -p 97891
PID TT STAT TIME COMMAND
97891 - REJ 0:01.20 invidious

$ kill -0 97891
kill: 97891: No such process

Must be a race condition somewhere?

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일전에 한 게임 제작자가 게임 해본 적 없는 자기 아내에게 게임을 시켜보고 옆에서 지켜봤을 때. '평생 게이머가 아니었던 사람들은 게임을 보고 어떤 식으로 유추하고 판단하는지' 관찰한 적이 있었는데. 생각보다 '게이머'들이 오랜 시간동안 축적해온 관습적 동작과 상징들이 많다는 것을 알았고. 나는 그 중 태반을 모른다는 것까지 알게 되었음.

RE: https://bsky.app/profile/did:plc:pruiueewvzesklle63peqvtl/post/3meufhzrbq422

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일전에 한 게임 제작자가 게임 해본 적 없는 자기 아내에게 게임을 시켜보고 옆에서 지켜봤을 때. '평생 게이머가 아니었던 사람들은 게임을 보고 어떤 식으로 유추하고 판단하는지' 관찰한 적이 있었는데. 생각보다 '게이머'들이 오랜 시간동안 축적해온 관습적 동작과 상징들이 많다는 것을 알았고. 나는 그 중 태반을 모른다는 것까지 알게 되었음.

RE: https://bsky.app/profile/did:plc:pruiueewvzesklle63peqvtl/post/3meufhzrbq422

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그러니까 확실히 그런게 있음. 게임 회사도 타겟 고객층이 있는데. 나는 이상하게 어느 게임에서도 그 타겟이 안 됨. 그나마 되는건 진짜 아무나 와서 하세요 하는 퍼즐 게임 같은거. 프롬 게임은 맨날 안 어렵다 안 어렵다 하면서 들어가면 못하면 너는 타겟 아님 하면서 쫒아내고. (요즘 이런 게임 엄청 늘었음) 가챠게임은 님은 돈도 없고 시간도 없고 가진게 뭐에요? 하고 쫒아내고. RPG는 좀 공부를 하고 오세요 이러고. 인디게임들은 하든가 말든가 모드긴 하네.

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그러니까 확실히 그런게 있음. 게임 회사도 타겟 고객층이 있는데. 나는 이상하게 어느 게임에서도 그 타겟이 안 됨. 그나마 되는건 진짜 아무나 와서 하세요 하는 퍼즐 게임 같은거. 프롬 게임은 맨날 안 어렵다 안 어렵다 하면서 들어가면 못하면 너는 타겟 아님 하면서 쫒아내고. (요즘 이런 게임 엄청 늘었음) 가챠게임은 님은 돈도 없고 시간도 없고 가진게 뭐에요? 하고 쫒아내고. RPG는 좀 공부를 하고 오세요 이러고. 인디게임들은 하든가 말든가 모드긴 하네.

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