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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ใƒซใƒณใƒใ•ใ‚“้™ใ‹ใซใชใฃใŸใจๆ€ใฃใŸใ‚‰ใ‚ฝใƒ•ใ‚กใฎไธ‹ใซใ‚‚ใใฃใฆใฆใ‹ใ‚ใ„ใ„ใช

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Itโ€™s interesting to me that Trump has so quickly backed off on the threat of using force in Greenland. Someone talked him off the ledge. Maybe the massing European troops raised the stakes enough for his advisors to hesitate. Maybe the generals said they would not attack a NATO member nation (a clearly illegal order). Maybe he never had military support at all, and was talking out of his ass all along. Who knows? The point is, they called his bluff, and he folded like wet napkin. I think people need to learn from this. Calling Trumpโ€™s bluffs works, especially when you team up with other communities to call his bluff together.

reuters.com/business/davos/det

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์ผ๋ณธ์€ ์ผํ•  ์‚ฌ๋žŒ์ด ์—†์–ด ํšŒ์‚ฌ๊ฐ€ ๋งํ•˜๊ณ  ์žˆ๋‹ค
๋ผ๋Š” ๋А๋‚Œ์˜ ๋ฌธ์žฅ๋“ค์„ ๋ณผ ๋•Œ๋งˆ๋‹ค ์ •์ •ํ•ด์ฃผ๊ณ  ์‹ถ์–ด์ง„๋‹ค.
์ €์ž„๊ธˆ์— ์ผํ•  ์‚ฌ๋žŒ์ด ์—†์–ด ๊ฒฝ์Ÿ๋ ฅ์ด ์—†๋Š” ํšŒ์‚ฌ๊ฐ€ ๋งํ•˜๊ณ  ์žˆ๋‹ค
๋ญ ๐Ÿ‡ฐ๐Ÿ‡ท ๋ผ๊ณ  ๋‹ค๋ฅด๊ฒ ๋ƒ๋งŒ.
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I've been using Mastodon sporadically for a few years.

I don't use it more because I don't understand the possibilities, the different timelines. I don't know how the algorithms work, what is the effect of a "boost", etc.

Could you recommend a text that explains these things clearly and precisely, in Portuguese, English, or Spanish?

Thank you!

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๐Ÿš€ Verfรผgbar fรผr Jobs im Bereich IT-Infrastrukturen (Linux/OpenSource/Automatisierung), Datenschutz/IT-Security Management oder ggf. Software Quality Testing.

๐Ÿ”น Jahre Erfahrung in Linux, Open Source, Datenschutz
๐Ÿ”น Remote Work Erfahrung und suche 100% Remote Work
๐Ÿ”น wรผrde gern unter Linux arbeiten und gerne weiterhin in einer Firma die Open Source an erste Stelle stellt arbeiten
๐Ÿ’ก gern langfristig

๐Ÿ“ฉ DMs offen

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Itโ€™s interesting to me that Trump has so quickly backed off on the threat of using force in Greenland. Someone talked him off the ledge. Maybe the massing European troops raised the stakes enough for his advisors to hesitate. Maybe the generals said they would not attack a NATO member nation (a clearly illegal order). Maybe he never had military support at all, and was talking out of his ass all along. Who knows? The point is, they called his bluff, and he folded like wet napkin. I think people need to learn from this. Calling Trumpโ€™s bluffs works, especially when you team up with other communities to call his bluff together.

reuters.com/business/davos/det

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์—ฐ์นœ๋ถ„๋“ค ๋„์›€ ์š”์ฒญ๋“œ๋ฆฝ๋‹ˆ๋‹ค.

์ œ ์•„๋‚ด๊ฐ€ ๊ธˆ์ผ(01์›” 21์ผ ์ˆ˜) ์˜คํ›„ 8์‹œ 50๋ถ„๊ฒฝ, ์ง‘์—์„œ ๋„๋ณด 8๋ถ„ ๊ฑฐ๋ฆฌ์— ์žˆ๋Š” ์„œ์ ์—์„œ ๋ฐœ์„ ๋‹ค์ณค์œผ๋‹ˆ ๋ฐ๋ฆฌ๋Ÿฌ ์™€๋‹ฌ๋ผ๋Š” ์ „ํ™” ํ†ตํ™”๋ฅผ ๋งˆ์ง€๋ง‰์œผ๋กœ ์†Œ์žฌ ํŒŒ์•…์ด ๋˜์ง€ ์•Š๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

ํ˜„์žฌ ๊ฒฝ์ฐฐ ์‹ค์ข… ์ˆ˜์‚ฌํŒ€์—์„œ ์ฐพ๊ณ ์žˆ์ง€๋งŒ 3์‹œ๊ฐ„ ๊ฐ€๋Ÿ‰์ด ์ง€๋‚ฌ์Œ์—๋„ ์ฐพ์ง€ ๋ชปํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

์ €ํฌ ๋ถ€๋ถ€๋Š” ์—ฐ์‹ ๋‚ด์—ญ ๋ถ€๊ทผ์—์„œ ์‚ด๊ณ ์žˆ์œผ๋ฉฐ, ์˜คํ›„ 10์‹œ 40๋ถ„ ๊ฒฝ ์—ญ์ดŒ์—ญ์—์„œ ๋งˆ์ง€๋ง‰ ํœด๋Œ€์ „ํ™” ์‹ ํ˜ธ๊ฐ€ ํ™•์ธ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.

๊ธˆ์ผ ์˜คํ›„ 8์‹œ 26๋ถ„์— ๊ฒ€์€์ƒ‰ ํ›„๋“œํ‹ฐ๋ฅผ ์ž…๊ณ  ์™ธ์ถœํ•œ ๊ฒƒ์œผ๋กœ ํ™•์ธ๋ฉ๋‹ˆ๋‹ค. (์•ˆ์—๋Š” ์ฃผํ™ฉ/๊ฒ€์ •์ด ๋ฐ˜๋ณต๋˜๋Š” ์ค„๋ฌด๋Šฌ ์Šค์›จํ„ฐ๋ฅผ ์ž…์€ ๊ฒƒ์œผ๋กœ ์ถ”์ •๋ฉ๋‹ˆ๋‹ค.)

93๋…„์ƒ ์—ฌ์„ฑ์ž…๋‹ˆ๋‹ค.

๊ธˆ์ผ ์˜คํ›„ 8์‹œ 30๋ถ„ ์ „ํ›„๋กœ ์„œ์šธ ์€ํ‰๊ตฌ์—์„œ ๋น„์Šทํ•œ ์—ฐ๋ น๋Œ€ ๋ฐ ์ธ์ƒ์ฐฉ์˜๋ฅผ ๋ชฉ๊ฒฉํ•˜์‹  ๊ณ„์‹ ๋‹ค๋ฉด ๋ถ€๋”” ์—ฐ๋ฝ์„ ๋ถ€ํƒ๋“œ๋ฆฌ๊ฒ ์Šต๋‹ˆ๋‹ค.

์•„๋‚ด๋ฅผ ์ฐพ๋Š”๋ฐ ๋„์›€์ด ๋œ ์ •๋ณด๋Š” ์ฃผ์ €์—†์ด ์‚ฌ๋ก€ํ•˜๋„๋ก ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค.

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์—ฐ์นœ๋ถ„๋“ค ๋„์›€ ์š”์ฒญ๋“œ๋ฆฝ๋‹ˆ๋‹ค.

์ œ ์•„๋‚ด๊ฐ€ ๊ธˆ์ผ(01์›” 21์ผ ์ˆ˜) ์˜คํ›„ 8์‹œ 50๋ถ„๊ฒฝ, ์ง‘์—์„œ ๋„๋ณด 8๋ถ„ ๊ฑฐ๋ฆฌ์— ์žˆ๋Š” ์„œ์ ์—์„œ ๋ฐœ์„ ๋‹ค์ณค์œผ๋‹ˆ ๋ฐ๋ฆฌ๋Ÿฌ ์™€๋‹ฌ๋ผ๋Š” ์ „ํ™” ํ†ตํ™”๋ฅผ ๋งˆ์ง€๋ง‰์œผ๋กœ ์†Œ์žฌ ํŒŒ์•…์ด ๋˜์ง€ ์•Š๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

ํ˜„์žฌ ๊ฒฝ์ฐฐ ์‹ค์ข… ์ˆ˜์‚ฌํŒ€์—์„œ ์ฐพ๊ณ ์žˆ์ง€๋งŒ 3์‹œ๊ฐ„ ๊ฐ€๋Ÿ‰์ด ์ง€๋‚ฌ์Œ์—๋„ ์ฐพ์ง€ ๋ชปํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

์ €ํฌ ๋ถ€๋ถ€๋Š” ์—ฐ์‹ ๋‚ด์—ญ ๋ถ€๊ทผ์—์„œ ์‚ด๊ณ ์žˆ์œผ๋ฉฐ, ์˜คํ›„ 10์‹œ 40๋ถ„ ๊ฒฝ ์—ญ์ดŒ์—ญ์—์„œ ๋งˆ์ง€๋ง‰ ํœด๋Œ€์ „ํ™” ์‹ ํ˜ธ๊ฐ€ ํ™•์ธ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.

๊ธˆ์ผ ์˜คํ›„ 8์‹œ 26๋ถ„์— ๊ฒ€์€์ƒ‰ ํ›„๋“œํ‹ฐ๋ฅผ ์ž…๊ณ  ์™ธ์ถœํ•œ ๊ฒƒ์œผ๋กœ ํ™•์ธ๋ฉ๋‹ˆ๋‹ค. (์•ˆ์—๋Š” ์ฃผํ™ฉ/๊ฒ€์ •์ด ๋ฐ˜๋ณต๋˜๋Š” ์ค„๋ฌด๋Šฌ ์Šค์›จํ„ฐ๋ฅผ ์ž…์€ ๊ฒƒ์œผ๋กœ ์ถ”์ •๋ฉ๋‹ˆ๋‹ค.)

93๋…„์ƒ ์—ฌ์„ฑ์ž…๋‹ˆ๋‹ค.

๊ธˆ์ผ ์˜คํ›„ 8์‹œ 30๋ถ„ ์ „ํ›„๋กœ ์„œ์šธ ์€ํ‰๊ตฌ์—์„œ ๋น„์Šทํ•œ ์—ฐ๋ น๋Œ€ ๋ฐ ์ธ์ƒ์ฐฉ์˜๋ฅผ ๋ชฉ๊ฒฉํ•˜์‹  ๊ณ„์‹ ๋‹ค๋ฉด ๋ถ€๋”” ์—ฐ๋ฝ์„ ๋ถ€ํƒ๋“œ๋ฆฌ๊ฒ ์Šต๋‹ˆ๋‹ค.

์•„๋‚ด๋ฅผ ์ฐพ๋Š”๋ฐ ๋„์›€์ด ๋œ ์ •๋ณด๋Š” ์ฃผ์ €์—†์ด ์‚ฌ๋ก€ํ•˜๋„๋ก ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค.

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neat piece of invisible infrastructure: the Rust portable-atomic crate

your platform doesnโ€™t support a particular type of atomic natively? not a problem, this crate gives you an implementation anyway

how? well thereโ€™s a global lock, you see. or, rather, 67 global locks, and which one gets used depends on the address of the atomic mod 67.

but, thatโ€™s kinda inefficient, so you wouldnโ€™t want to use it unless itโ€™s your only choice, right?

so they have a bunch of platform specific implementations, such as โ€œletโ€™s detect at runtime if cmpxchg16b is supportedโ€ or โ€œthis is a microcontroller so if we read it within one instruction weโ€™re fine, and otherwise just disable the interruptsโ€

and as a result you can just use it and not really think about it, because in 99% of cases itโ€™s gonna do the same thing as what youโ€™d end up with if you bothered to optimize it manually

the ratio of elaborate internals to unassuming API surface is so great here you could easily blink and miss the fact that someone is pulling off heroic feats to make this happen

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