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Open Source @Github

Show HN: X11 desktop widget that shows location of your network peers on a map

https://github.com/h2337/connmap
29•h2337•1h ago•19 comments

Staying cool without refrigerants: Next-generation Peltier cooling

https://news.samsung.com/global/interview-staying-cool-without-refrigerants-how-samsung-is-pioneering-next-generation-peltier-cooling
164•simonebrunozzi•5h ago•121 comments

LLM Alloying Improves Performance over Single Model

https://xbow.com/blog/alloy-agents/
21•summarity•1h ago•5 comments

XMLUI

https://blog.jonudell.net/2025/07/18/introducing-xmlui/
447•mpweiher•11h ago•235 comments

New colors without shooting lasers into your eyes

https://dynomight.net/colors/
226•zdw•3d ago•66 comments

Stdio(3) change: FILE is now opaque (OpenBSD)

https://undeadly.org/cgi?action=article;sid=20250717103345
97•gslin•7h ago•45 comments

Simulating Hand-Drawn Motion with SVG Filters

https://camillovisini.com/coding/simulating-hand-drawn-motion-with-svg-filters
113•camillovisini•3d ago•13 comments

What birdsong and back ends can teach us about magic

https://digitalseams.com/blog/what-birdsong-and-backends-can-teach-us-about-magic
14•nkurz•1h ago•2 comments

Coding with LLMs in the summer of 2025 – an update

https://antirez.com/news/154
412•antirez•14h ago•285 comments

Peep Show – The Most Realistic Portrayal of Evil Ever Made (2020)

https://mattlakeman.org/2020/01/22/peep-show-the-most-realistic-portrayal-of-evil-ive-ever-seen/
46•Michelangelo11•4h ago•14 comments

What My Mother Didn't Talk About (2020)

https://www.buzzfeednews.com/article/karolinawaclawiak/what-my-mother-didnt-talk-about-karolina-waclawiak
35•NaOH•3d ago•10 comments

Computational Complexity of Neural Networks

https://lunalux.io/introduction-to-neural-networks/computational-complexity-of-neural-networks/
9•mathattack•1h ago•1 comments

FFmpeg devs boast of another 100x leap thanks to handwritten assembly code

https://www.tomshardware.com/software/the-biggest-speedup-ive-seen-so-far-ffmpeg-devs-boast-of-another-100x-leap-thanks-to-handwritten-assembly-code
160•harambae•5h ago•56 comments

Logical implication is a comparison operator

https://btdmaster.bearblog.dev/logical-implication-as-comparison/
11•btdmaster•3d ago•3 comments

Speeding up my ZSH shell

https://scottspence.com/posts/speeding-up-my-zsh-shell
134•saikatsg•10h ago•66 comments

IPv6 Based Canvas

https://canvas.openbased.org/
14•tylermarques•3h ago•0 comments

Show HN: Conductor, a Mac app that lets you run a bunch of Claude Codes at once

https://conductor.build/
126•Charlieholtz•3d ago•59 comments

The Genius Device That Rocked F1

https://www.youtube.com/watch?v=FhmLb2DhNYM
13•brudgers•2h ago•1 comments

Discovering what we think we know is wrong

https://www.science.org/content/blog-post/tell-me-again-about-neurons-now
16•strangattractor•2d ago•6 comments

Tough news for our UK users

https://blog.janitorai.com/posts/3/
234•airhangerf15•5h ago•206 comments

Insights on Teufel's First Open-Source Speaker

https://blog.teufelaudio.com/visionary-mynds-insights-on-teufels-first-open-source-speaker/
73•lis•8h ago•13 comments

SIOF (Scheme in One File) – A Minimal R7RS Scheme System

https://github.com/false-schemers/siof
5•gjvc•1d ago•0 comments

Digital vassals? French Government 'exposes citizens' data to US'

https://brusselssignal.eu/2025/07/digital-vassals-french-government-exposes-citizens-data-to-us/
183•ColinWright•14h ago•78 comments

Jove (Jonathan's Own Version of Emacs)

https://en.wikipedia.org/wiki/JOVE
37•nanna•3d ago•23 comments

AI is killing the web – can anything save it?

https://www.economist.com/business/2025/07/14/ai-is-killing-the-web-can-anything-save-it
133•edward•16h ago•161 comments

Hacking a Toniebox

https://www.schafe-sind-bessere-rasenmaeher.de/tech/hack-all-the-things-toniebox/
72•LorenDB•8h ago•35 comments

A Tour of Microsoft's Mac Lab (2006)

https://davidweiss.blogspot.com/2006/04/tour-of-microsofts-mac-lab.html
171•ingve•15h ago•29 comments

The old Caveman Chemistry website (1996-2000)

https://cavemanchemistry.com/oldcave/
79•marcodiego•11h ago•10 comments

Async I/O on Linux in databases

https://blog.canoozie.net/async-i-o-on-linux-and-durability/
183•jtregunna•19h ago•89 comments

Australia Wants to See Your Papers Before You Press Play

https://reclaimthenet.org/australia-wants-to-see-your-papers-before-you-press-play
39•like_any_other•4h ago•8 comments
Open in hackernews

Subreply – an open source text-only social network

https://github.com/lucianmarin/subreply
59•lcnmrn•7h ago

Comments

PaulHoule•6h ago
Gotta say that (1) images greatly improve engagement on things like Mastodon and Bluesky and (2) I have the most fun on those platforms sharing photos that I took.
chistev•6h ago
But there are no images here
ramon156•6h ago
... hence the comment
latchkey•5h ago
I've been keeping a list of features to build into a HN browser extension for years now and this is one of the top items on my list. One of these days I'll get around to it.
chistev•5h ago
I wasn't complaining. I love that HN is text only.
PaulHoule•4h ago
... and what I post to Mastodon/Bluesky is different from what I post to HN

https://mastodon.social/@UP8

For instance, I post links to phys.org a lot more and I'm less likely to post a link to the paper because (1) Mastodon can't extract images out of the latter and (2) I get more replies like "this is over my head" from Mastodonsters whereas I think most of you might think you'd look stupid if you said something like that. On the other hand I rarely post links to The Guardian to Mastodon because it can't extract images from Guardian articles.

Bonus: if you look right now you'll see the user interface that I use to post to HN! [1]

[1] permalink that documents the mysterious YOShInOn: https://mastodon.social/@UP8/114887102728039235

latexr•3h ago
> I get more replies like "this is over my head" from Mastodonsters whereas I think most of you might think you'd look stupid if you said something like that.

Not sure that’s the reason. Or at least all of it. HN tends to value substantive posts and someone just saying “I don’t understand this” doesn’t add to the discussion and would likely be downvoted. On the other hand, I have seen people here say they don’t understand specific bits of a post. Those are actionable and advance the discussion, and tend to be upvoted and get replies.

mbirth•6h ago
Yeah, this reminds me of old Reddit where people resorted to imgur and other image hosts before they introduced their own photo upload feature.
PokemonNoGo•6h ago
Is that bad? Resorting to a dedicated party for rich content? I enjoyed reddit more when it was like that honestly. Business wise it is the wrong decision though.
mbirth•3h ago
It's bad in that the media is completely disconnected from the posts. If the media provider you chose goes down, nobody will be able to see the stuff you've posted anymore. If that subreply server you're using gets taken down, you'll have lots of orphaned stuff on that media upload website.
chistev•5h ago
I still love old Reddit
cyberge99•5h ago
https://old.reddit.com/
chistev•5h ago
It's what I use. Normal reddit is atrocious.
athenot•1h ago
Before Facebook bought Instagram, the later was the main way people posted images on Twitter, since it was text-only at the time.
throwaway81523•4h ago
I've never used Mastodon of Bluesky and I hate Twitter. I do feel pretty engaged with HN, and it is text-only. I'm not sure what makes "social media" different from a discussion board though, so I don't know whether HN counts. I do remember that github used to call itself social coding, which was one factor making me want to stay away from it.
latexr•3h ago
HN has (or is missing, depending on your point of view) a number of features integral to (other?) social networks. Being text-only is one, but not having notifications for replies is a big one. Also no “boosts”, “reshares”, “follows”, “blocks”, …
throwaway81523•2h ago
Yeah for Usenet I use gnus, which keeps track of which posts I have already seen. It doesn't have notifications and I don't miss them, as long as I can see right away where the new posts are. I don't know what reshares are. Gnus does have a way to ignore specific posters or topics and I do use that. Every time I mull the idea of writing another forum poster, I come back to the realization that Usenet already does everything needed (at least on the backend), and has done so since the 1980s. A better NNTP to web gateway is all it could really use, for those who want to read with browsers.
aspenmayer•3m ago
For reply notifications, I use HN user ‘dangrossman’s HN Replies:

https://news.ycombinator.com/user?id=dangrossman

Show HN: HN Replies – Get notified of replies to your comments - https://news.ycombinator.com/item?id=11080539 - February 11 2016 (124 comments)

https://www.hnreplies.com/

stupidgeek314•6h ago
> text only > emojis

xD

pluto_modadic•22m ago
UTF-8 is still text :p
diath•6h ago
You probably want to pin requirements to specific versions of the libraries.
Sirikon•5h ago
Trendiest post is from the developer saying "Mastodon is dead", four weeks ago, 12 replies.

Sure bud.

loloquwowndueo•5h ago
You make it sound like they claim subreply is the thing that might have killed mastodon. The full post is:

Mastodon is dead. Most people have migrated to Bluesky or Threads.

cyberge99•5h ago
Thank you for the context. It’s important and often overlooked.
nathan_compton•4h ago
Two clicks into this and I say someone posting "Killing n** (free speech)" from a poster named "N*** killer".

I am, in fact, pro free speech. But this is a bad look. I'm not even saying this is a problem with subreply. It is some other kind of problem. A problem with a subset of people who like free speech or something? I don't get it.

shayway•3h ago
It's worth pointing out that the post in question was made in the past half hour amidst the wave of activity from HN. Not to say your point isn't valid, but I think this is more an example of trolls who will say anything and everything to cause anger and insult; it's not representative of those who believe in free speech, or the site itself for that matter.
givemeethekeys•3h ago
Maybe it is a bot by other competing social networks.

Such trolling hurts new businesses a lot more than old ones.

averageRoyalty•3h ago
But that example has played out on every social media website, forum, etc once hitting critical mass. It's a bigger problem in society yes, but it's not just trolls. Trolls are the least harmful of the groups of people who will scream racial epithets online.
latexr•3h ago
> I am, in fact, pro free speech.

You can be pro free speech and still not condone hate speech, or libel, or doxxing, or a myriad of other problems.

https://en.wikipedia.org/wiki/Freedom_of_speech

Free speech doesn’t mean you can say literally anything in literally any context. Not, not even in the “land of the free”.

https://en.wikipedia.org/wiki/Freedom_of_speech_in_the_Unite...

Additionally, XKCD reminds:

https://xkcd.com/1357/

> A problem with a subset of people who like free speech or something? I don't get it.

I don’t think those people particularly care about free speech, they just want to be able to say whatever they want with no repercussions. The more of a “free speech absolutist” they claim to be, usually the worse they are. It’s a common pattern to see those same individuals clamour for free speech in one post and then in another call for banning books or try to silence someone else.

nine_k•3h ago
> want to be able to say whatever they want with no repercussions

Rather, they want to be able to say anything to annoy people as much as possible, for the kicks.

Verily, it's important to be able to say annoying things: try speaking about atheism or a different religion in a devout crowd (capitalism among the "left", climate change among the "right", etc). But the intention is important. The intention of trolls is to enjoy other people's discomfort, not to voice an important idea.

Unfortunately, this is very hard to formalize.

perching_aix•14m ago
The extreme and persistent refusal of people en-masse over the years to concede to this, and to insist with absolute certainty that any amount of filtering at all is straight up censorship and so they're now being repressed, has successfully made me give up on the idea of being "pro free speech". I sometimes wonder if that was the goal, both in the political sense, but also in the sarcastic counterexample sense.
giancarlostoro•2h ago
For some people if you can say the most extreme things, then you can say anything else, including things that are nowhere near as bad as this but are banned in other platforms.

I have admined what I consider free speech friendly communities in the past (think forums), people always join and ruin it for everyone else.

reactordev•2h ago
When your speech has no apparent consequences people tend to say the most obscene things because in their mind it’s been taboo for so long. The problem is that is an extreme dopamine rush and if not checked, can cause you to seek that reward by opening your mouth a second time. (Or typing your thoughts on social media).
hexage1814•1h ago
> I am, in fact, pro free speech

Sure you are...

perching_aix•4m ago
It is a bad look, but it makes sense to me.

For what it's worth, right now at least, most thoughts and opinions people have in the English speaking world can be expressed just fine without it getting moderated out, despite what some would claim. And so those who seek out platforms where they won't get moderated will be folks who would do get otherwise moderated out elsewhere. One can also refer to cryptocurrencies and Tor for a parallel.

bluerooibos•2h ago
Cool! I'd say the current UI would greatly benefit from some UX enhancements.

At first glance, the page just looks like a wall of text. Very little contrast/hierarchy difference between author names and post titles etc so it's difficult to distinguish between what the content is. Spacing between content would help too.

dsmurrell•2h ago
Was going to register but this stopped me...

"Password needs a lowercase letter"

Can you use entropy based password complexity measures please.

giancarlostoro•1h ago
I have thought about making something similar, text only social media. The focus should be on written content, not so much video, and images. I also considered how to monetize / do ads correctly, maybe a slightly different font.
wenbin•1h ago
missed the good old days of telnet bbs & newsgroup :)
davidcollantes•1h ago
Finally! I asked about open sourcing it almost 10 years ago: https://subreply.com/reply/11842