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

https://github.com/localgpt-app/localgpt
59•yi_wang•2h ago•22 comments

SectorC: A C Compiler in 512 bytes (2023)

https://xorvoid.com/sectorc.html
231•valyala•10h ago•44 comments

Haskell for all: Beyond agentic coding

https://haskellforall.com/2026/02/beyond-agentic-coding
19•RebelPotato•2h ago•3 comments

Speed up responses with fast mode

https://code.claude.com/docs/en/fast-mode
141•surprisetalk•9h ago•144 comments

Software factories and the agentic moment

https://factory.strongdm.ai/
174•mellosouls•12h ago•332 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...
59•gnufx•8h ago•55 comments

Stories from 25 Years of Software Development

https://susam.net/twenty-five-years-of-computing.html
151•vinhnx•13h ago•16 comments

Hoot: Scheme on WebAssembly

https://www.spritely.institute/hoot/
172•AlexeyBrin•15h ago•31 comments

First Proof

https://arxiv.org/abs/2602.05192
121•samasblack•12h ago•74 comments

IBM Beam Spring: The Ultimate Retro Keyboard

https://www.rs-online.com/designspark/ibm-beam-spring-the-ultimate-retro-keyboard
15•rbanffy•4d ago•4 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
296•jesperordrup•20h ago•95 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
68•momciloo•10h ago•13 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...
94•randycupertino•5h ago•206 comments

LLMs as the new high level language

https://federicopereiro.com/llm-high/
38•swah•4d ago•80 comments

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

https://spillhistorie.no/2026/02/06/interview-with-sierra-veteran-al-lowe/
96•thelok•12h ago•21 comments

Show HN: Axiomeer – An open marketplace for AI agents

https://github.com/ujjwalredd/Axiomeer
7•ujjwalreddyks•5d ago•2 comments

Start all of your commands with a comma (2009)

https://rhodesmill.org/brandon/2009/commands-with-comma/
565•theblazehen•3d ago•206 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-...
34•mbitsnbites•3d ago•2 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/
283•1vuio0pswjnm7•16h ago•462 comments

GitBlack: Tracing America's Foundation

https://gitblack.vercel.app/
25•martialg•5h ago•4 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-...
122•josephcsible•8h ago•153 comments

Vouch

https://twitter.com/mitchellh/status/2020252149117313349
32•chwtutha•47m ago•6 comments

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

https://jonathanwhiting.com/writing/blog/games_in_c/
179•valyala•10h ago•165 comments

The silent death of good code

https://amit.prasad.me/blog/rip-good-code
77•amitprasad•4h ago•76 comments

The F Word

http://muratbuffalo.blogspot.com/2026/02/friction.html
108•zdw•3d ago•54 comments

Selection rather than prediction

https://voratiq.com/blog/selection-rather-than-prediction/
28•languid-photic•4d ago•9 comments

Reinforcement Learning from Human Feedback

https://rlhfbook.com/
115•onurkanbkrc•15h ago•5 comments

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

https://openciv3.org/
899•klaussilveira•1d ago•275 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
224•limoce•4d ago•124 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
140•speckx•4d ago•218 comments
Open in hackernews

A cycle-accurate IBM PC emulator in your web browser

https://martypc.net/?mount=fd:0:Area%205150%20(Compo%20Version).img
158•GloriousCow•9mo ago

Comments

GloriousCow•9mo ago
MartyPC brings cycle-accurate IBM PC emulation to your web browser.

Run Area 5150 at 60fps on your phone!

Almost every feature from the desktop version is present if practical:

- View the realtime state of nearly every component of the system. - View live disassembly of CPU instructions. - Edit registers and memory. - Slow down or speed up the system. - Peek on how games draw their graphics with the Memory Visualizer.

WalterGR•9mo ago
Pretty incredible!

I’m on mobile right now so I can only comment on the demo that runs automatically, which I understand isn’t the _point_. :)

More about the demo: https://www.vogons.org/viewtopic.php?t=89435

(For those unfamiliar with “demo” in this context, see https://en.m.wikipedia.org/wiki/Demoscene)

I look forward to checking out the features you mention on a proper computer.

rkagerer•9mo ago
I loved it when the Doom floating head demon guy came up. Right when y'all were about to ask "...but can it run Doom?"
TMWNN•9mo ago
Thanks for pointing people to Area 5150. Context for others: This, and its predecessor 8088 MPH, uses every single trick in the book and many not written down anywhere to squeeze that kind of performance out of a real 1981 IBM PC 5150 with IBM CGA card. Thus they only run correctly on that specific hardware, not a clone computer or card. "Regular" software emulators also have a tough time. Showing off MartyPC with Area 5150 is thus two technical feats combined into one.
nsxwolf•9mo ago
Can you imagine sending an Area 5150 disk back in time to 1981?
trollbridge•9mo ago
You’d be fussing around trying to find enough RAM expansion cards to get your system to 640K (including hot patching the BIOS since it had a bug that it could only get to 544K).
SoftTalker•9mo ago
Ought to be enough for anyone.
voidspark•9mo ago
640 KB in 1981 was more expensive than 640 GB today.
ForOldHack•9mo ago
That was only the first 64k motherboard. ( Five slots only ). Fixed with the PC that came out less than two years later. My brothers machine only had 384k, and it was more than enough. Only three years after, I built 10Mhz XT w/ a V20 640k running Xenix.
shakna•9mo ago
One of my neighbours in Sydney sold a board he made in his garage, that gave you an extra ten slots, which I filled with way too much RAM. Sort of like a homebrewed 5161, before the 5161 existed.
trollbridge•9mo ago
That's kind of neat. Did he just extend the bus in a "raw" fashion or put buffers on it? (The downside of the 5161 was any memory device in the 5161 had an extra wait state thanks to the speed of the buffers, which were necessary to deal with the capacitance on the cable to the expansion unit.)
shakna•9mo ago
They were buffered, from my poor memory. So was slower when you exceeded mainboard memory, but you could load entire tapes into memory, which let you do things no one else could. Faster processing than disk/tape access.
kwertyoowiyop•9mo ago
If I had seen this back in the day, I might have given up on programming out of sheer awe!
theogravity•9mo ago
That demo was pretty mesmerizing!
wbhart•9mo ago
I've been using MartyPC for a few years and except for emulating glitches in hardware which depend on the manufacturer, date of manufacture or even temperature, it is getting harder to find cycle accurate tricks that MartyPC can't emulate perfectly (believe me, we've been trying).

The whole thing is a marvel of software engineering!

What is remarkable is that the author (GloriousCow) doesn't complain that people are ripping off his code and ideas, but that more people haven't used his learnings to create other cycle accurate emulators for the PC.

johnklos•9mo ago
Temperature? Really? How does that work?
bonzini•9mo ago
If you program a register at a moment and in a way that causes two signals to "collide", the result effectively depends on transistor behavior. That in turn can be temperature dependent.

For an example on the PC see https://int10h.org/blog/2023/03/cga-6845-crtc-phantom-vsync-...

creatonez•9mo ago
Thanks. Transistor level race conditions will keep me up at night.
kaoD•9mo ago
Amazing link. Thanks for sharing.

Where can I find more writeups like this?

mrandish•9mo ago
That was a fun rabbit hole. My first computer (8-bit, 4k RAM, 0.8 Mhz) had a video chip related to that 6845, the 6847, which was (sadly) a somewhat lower cost, less capable, less interesting chip.
dosman33•9mo ago
I miss Notacon and Jason Scott's Demoscene parties.
imroot•9mo ago
Some of my best hacker/nerd friends I met at notacon. It had a vibe that no other con I’ve been to has had.
p0w3n3d•9mo ago
Wow that's amazing. I sometimes play NES emulated games, which are (due to hardware limitations) using some tricks while displaying larger mobs, to show a few sprites instead of one (and using monitor synch to quickly switch the sprites in between switching to another scanline). This however renders as blinking in my emulator.

I can only imagine that this demo was doing similar tricks to "push the limits" on CGA.

Also, I remember my i386-33SX playing full 4 channel music on the PC Speaker in the game "Pinball Fantasies". This was state-of-the-art (also not working properly on DOSBox emulator nowadays)

marstall•9mo ago
truly epic!
genewitch•9mo ago
This appeared on the fp the same day i spent 15 hours trying to get various old/weird OSes installed. Xerox Star (viewpoint), os/2 warp 4, serenityos, debian 9, and where is freebsd 2.2 disc 2, might i ask?

commenting for posterity, and to say the web emulator is very slick, i have some dos diskettes to try out.