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Tiny C Compiler

https://bellard.org/tcc/

127•guerrilla•4h ago•56 comments

SectorC: A C Compiler in 512 bytes

https://xorvoid.com/sectorc.html

214•valyala•8h ago•38 comments

Speed up responses with fast mode

https://code.claude.com/docs/en/fast-mode

120•surprisetalk•8h ago•130 comments

Show HN: LocalGPT – A local-first AI assistant in Rust with persistent memory

https://github.com/localgpt-app/localgpt

5•yi_wang•54m ago•0 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...

48•gnufx•7h ago•50 comments

Software factories and the agentic moment

https://factory.strongdm.ai/

145•mellosouls•11h ago•306 comments

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

https://openciv3.org/

890•klaussilveira•1d ago•271 comments

Stories from 25 Years of Software Development

https://susam.net/twenty-five-years-of-computing.html

142•vinhnx•11h ago•16 comments

Hoot: Scheme on WebAssembly

https://www.spritely.institute/hoot/

169•AlexeyBrin•14h ago•30 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...

77•randycupertino•3h ago•134 comments

First Proof

https://arxiv.org/abs/2602.05192

108•samasblack•10h ago•69 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/

274•jesperordrup•18h ago•87 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

60•momciloo•8h ago•11 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-...

31•mbitsnbites•3d ago•2 comments

Show HN: Craftplan – Elixir-based micro-ERP for small-scale manufacturers

https://puemos.github.io/craftplan/

8•deofoo•4d ago•1 comments

Eigen: Building a Workspace

https://reindernijhoff.net/2025/10/eigen-building-a-workspace/

7•todsacerdoti•4d ago•2 comments

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

https://spillhistorie.no/2026/02/06/interview-with-sierra-veteran-al-lowe/

89•thelok•10h ago•18 comments

The F Word

http://muratbuffalo.blogspot.com/2026/02/friction.html

101•zdw•3d ago•51 comments

Start all of your commands with a comma (2009)

https://rhodesmill.org/brandon/2009/commands-with-comma/

556•theblazehen•3d ago•206 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-...

100•josephcsible•6h ago•121 comments

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

https://jonathanwhiting.com/writing/blog/games_in_c/

175•valyala•8h ago•165 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/

262•1vuio0pswjnm7•14h ago•417 comments

Selection rather than prediction

https://voratiq.com/blog/selection-rather-than-prediction/

26•languid-photic•4d ago•7 comments

Reinforcement Learning from Human Feedback

https://rlhfbook.com/

114•onurkanbkrc•13h ago•5 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/

139•videotopia•4d ago•46 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en

220•limoce•4d ago•123 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline

131•speckx•4d ago•203 comments

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

https://github.com/valdanylchuk/breezydemo

296•isitcontent•1d ago•39 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/

577•todsacerdoti•1d ago•279 comments

72M Points of Interest

https://tech.marksblogg.com/overture-places-pois.html

49•marklit•5d ago•10 comments

Open in hackernews

Right-Truncatable Prime Counter

https://github.com/EbodShojaei/Right-Truncatable-Primes

9•rainmans•8mo ago

Comments

throwawaymaths•8mo ago

Curious about base 2. Obviously if you hit a 0 it's immediately not prime, but maybe adjust the rules so:

- you drill through as many 0's on the right.

- you finish on 1.

3, 5, 7, 11, 13, 15, 17 are all right truncatable, 19 is the first non-truncatable prime in this scheme.

nh23423fefe•8mo ago

i dont think smaller radixes make the problem more interesting. the problem is interesting because base 10 has a large branching factor

throwawaymaths•8mo ago

I think in the base2 reformulation I propose we do not know for certain if the list of numbers terminates, as all Fermat primes are in the set and we don't know if there are infinitely many Fermat primes.

For base-10 and the original rules the set is provably closed.

"Drilling through zeros" makes the branching unbounded.

jinwoo68•8mo ago

There's a Project Euler problem for finding truncatable prime numbers, from both left and right: https://projecteuler.net/problem=37

thechao•8mo ago

Just in case any else is wondering: there are only 83 right-truncatable primes (RTP) and that is it. There's two constraints that let you see this "immediately":

1. An RTP must start with {2,3,5,7,9}; and,

2. An RTP must end with {1,3,7,9}.

So, let's take the largest RTP (73939133) and try to "extend" it: there are only four possible extensions: 73939133[1], 73939133[3], 73939133[7], 73939133[9]. None of these are prime. This holds for the other 8-digit RTPs. Therefore, there is no extension to a 9-or-longer RTP. Thus, the list is exhaustive.