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Tiny C Compiler

https://bellard.org/tcc/
109•guerrilla•3h ago•46 comments

SectorC: A C Compiler in 512 bytes

https://xorvoid.com/sectorc.html
191•valyala•7h ago•36 comments

Speed up responses with fast mode

https://code.claude.com/docs/en/fast-mode
114•surprisetalk•7h ago•117 comments

Brookhaven Lab's RHIC concludes 25-year run with final collisions

https://www.hpcwire.com/off-the-wire/brookhaven-labs-rhic-concludes-25-year-run-with-final-collis...
44•gnufx•6h ago•45 comments

Software factories and the agentic moment

https://factory.strongdm.ai/
133•mellosouls•10h ago•282 comments

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
880•klaussilveira•1d ago•270 comments

Stories from 25 Years of Software Development

https://susam.net/twenty-five-years-of-computing.html
132•vinhnx•10h ago•15 comments

Hoot: Scheme on WebAssembly

https://www.spritely.institute/hoot/
166•AlexeyBrin•13h ago•29 comments

FDA intends to take action against non-FDA-approved GLP-1 drugs

https://www.fda.gov/news-events/press-announcements/fda-intends-take-action-against-non-fda-appro...
61•randycupertino•3h ago•96 comments

First Proof

https://arxiv.org/abs/2602.05192
98•samasblack•9h ago•65 comments

I write games in C (yes, C) (2016)

https://jonathanwhiting.com/writing/blog/games_in_c/
172•valyala•7h ago•154 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
269•jesperordrup•17h ago•86 comments

Al Lowe on model trains, funny deaths and working with Disney

https://spillhistorie.no/2026/02/06/interview-with-sierra-veteran-al-lowe/
85•thelok•9h ago•18 comments

The F Word

http://muratbuffalo.blogspot.com/2026/02/friction.html
97•zdw•3d ago•49 comments

Eigen: Building a Workspace

https://reindernijhoff.net/2025/10/eigen-building-a-workspace/
4•todsacerdoti•4d ago•1 comments

Show HN: A luma dependent chroma compression algorithm (image compression)

https://www.bitsnbites.eu/a-spatial-domain-variable-block-size-luma-dependent-chroma-compression-...
28•mbitsnbites•3d ago•2 comments

Show HN: I saw this cool navigation reveal, so I made a simple HTML+CSS version

https://github.com/Momciloo/fun-with-clip-path
53•momciloo•7h ago•10 comments

Start all of your commands with a comma (2009)

https://rhodesmill.org/brandon/2009/commands-with-comma/
550•theblazehen•3d ago•204 comments

Selection rather than prediction

https://voratiq.com/blog/selection-rather-than-prediction/
25•languid-photic•4d ago•7 comments

Microsoft account bugs locked me out of Notepad – Are thin clients ruining PCs?

https://www.windowscentral.com/microsoft/windows-11/windows-locked-me-out-of-notepad-is-the-thin-...
85•josephcsible•5h ago•109 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/
251•1vuio0pswjnm7•14h ago•394 comments

Reinforcement Learning from Human Feedback

https://rlhfbook.com/
112•onurkanbkrc•12h ago•5 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
138•videotopia•4d ago•46 comments

A Fresh Look at IBM 3270 Information Display System

https://www.rs-online.com/designspark/a-fresh-look-at-ibm-3270-information-display-system
58•rbanffy•4d ago•18 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
125•speckx•4d ago•188 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
216•limoce•4d ago•123 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
294•isitcontent•1d ago•39 comments

The silent death of Good Code

https://amit.prasad.me/blog/rip-good-code
56•amitprasad•2h ago•62 comments

Coding agents have replaced every framework I used

https://blog.alaindichiappari.dev/p/software-engineering-is-back
305•alainrk•12h ago•491 comments

72M Points of Interest

https://tech.marksblogg.com/overture-places-pois.html
48•marklit•5d ago•9 comments
Open in hackernews

Show HN: TCP chat server written in C# and .NET 9, used in the terminal

https://github.com/Sieep-Coding/simple-chat-csharp
23•sieep•1mo ago

Comments

DoctorOW•1mo ago
Is this effectively IRC? I know it's not literally compatible but the same basic TCP for chat right?

ETA: Not being dismissive! Cool project!

sieep•1mo ago
Admittedly I don't know a lot about networking or IRC clients, but in practice I believe so. The idea was to implement the simplest possible way for 2 people to communicate via TCP.
dahsameer•1mo ago
love that its single file each for server and client. simple and neat.
sieep•1mo ago
Thank you! I think it goes against Microsoft's C# conventions a bit (i.e. the classes should be separated out more) but I prefer this setup.
tcper•1mo ago
Funny, C# app only tested on Linux
throw__away7391•1mo ago
This is fairly normal these days, no?
exceptione•1mo ago
I remember having seen that Linux is used a lot by Microsoft's .net team.

Linux is the best platform anyways to run your .net core application. With Avalonia you have a good cross-platform solution, albeit that they still depend on X11/Xwayland for Linux.

A shame .net isn't more popular. The MS branding is a problem though. Although .net core is MIT-licensed, most contributions are from MS¹. Still, if MS would ever ditch it (quite unlikely for the foreseeable future), I think the ecosystem will step up.

__

1. F# is an outlier, that is a real community project with lots of contributions from companies and enthusiasts

sieep•1mo ago
I highly recommend trying C# on Linux, it works fantastic. Rider on Linux works amazing as well so hats off to Jetbrains.
arethuza•1mo ago
What happens if the message entered by the user into the Client is more than 4096 bytes?
nlitened•1mo ago
From what I see, the code is incorrect in reading “messages” from TCP socket stream, and will be failing randomly in production with messages longer than 1500 bytes, and also sometimes when even shorter.

Instead, the TCP socket must be treated as a stream of bytes, and use either some delimiter as message boundary (like \n, while escaping any newlines inside JSON), or write message size before the message bytes itself, so that the code knows how many bytes to read until full message is read.

Edit: to clarify, TCP protocol does not guarantee that if you write some bytes in one go, they will be read in one go as well. Instead, they may be split into multiple “reads”, or glued together with the preceding chunk, or both. It’s a “stream of bytes” protocol, it only guarantees that written bytes come one after another in the same order.

So the “naive” message separation used in code above (read a chunk and assume it’s the entire message that was written) will work in manual tests, and likely even in local automated tests, but will randomly break when exposed to real network conditions.

arethuza•1mo ago
Thanks - I had a quick scan through the code and noticed the 4096 byte buffers and wondered how larger messages were handled and couldn't see anything but wondered if I was missing something!
sieep•1mo ago
Good write up, thanks for taking the time to go into detail. I may try to implement your feedback at some point.
r0x0r007•1mo ago
wow, a simple project made by chatGPT reaches hacker news top page. Way to go C# devs! And yes, I am one of them.
DoctorOW•1mo ago
It's a simple project but it doesn't have the usual AI code style to me. It reads instead like someone getting the hang of networking in C#. Incidentally, this is OP's first public C# repo.

https://github.com/Sieep-Coding?tab=repositories&q=&type=&la...

r0x0r007•1mo ago
yeah maybe, I guess it's fine, I meant no disrespect for the person learning. I can see some git issues so probably a new dev showcasing.I just don't understand how the hn posts work. Shouldn't there be some upvoting of stuff to be on the main page, or it was just released so it appeared?
DoctorOW•1mo ago
For what it's worth the HN algorithm is a pretty complex, so I'm still oversimplifying but ti's more about the rate a story gains score than the points themselves. You can get just 5 votes in the first minute you're up and make the front page, which is more or less what this did.
sieep•1mo ago
I used Rider's auto-complete for a lot of the code but it is handwritten.