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Ultimate-Linux: Userspace for Linux in Pure JavaScript

https://github.com/popovicu/ultimate-linux
31•radeeyate•4h ago

Comments

kalterdev•1h ago
It’s never early to prepare for JavaScript complete takeover.
MobiusHorizons•1h ago
Very cool. Good use of quickjs, although it would have been cool if it somehow didn’t need a libc and just used the syscall interface. Makes me want to give that a try.
tzury•1h ago
Check out this:

https://bellard.org/jslinux/vm.html?url=alpine-x86.cfg&mem=1...

and

https://bellard.org/jslinux/

By the famous Fabrice Bellard who is the creator of QuickJS, QEMU, FFMPEG and many other brilliant and fascinating tools!

https://bellard.org/

supermdguy•41m ago
Reading the code, I was surprised to see that cd was implemented by calling out to the os library. I assumed that was something the shell or at least userspace handled. At what level does the concept of a “current directory” exist?
semiquaver•35m ago
Unix defines a Working Directory that every process has, changed with chdir(2): https://man7.org/linux/man-pages/man2/chdir.2.html
lukeh•35m ago
In the kernel’s process structure. See NOTES - https://man7.org/linux/man-pages/man2/chdir.2.html
creatonez•35m ago
It's at the kernel level. Each process has its own current working directory. On Linux, these CWD values are exposed at `/proc/[...]/cwd`. This value affects the resolution of relative paths in filesystem operations at a syscall level.

Maybe the default settings are too high

https://www.raptitude.com/2025/12/maybe-the-default-settings-are-too-high/
418•htk•7h ago•126 comments

MiniMax M2.1: Built for Real-World Complex Tasks, Multi-Language Programming

https://www.minimaxi.com/news/minimax-m21
93•110•5h ago•31 comments

Rob Pike Goes Nuclear over GenAI

https://imgur.com/nUJCI3o
153•signa11•1h ago•59 comments

Ultimate-Linux: Userspace for Linux in Pure JavaScript

https://github.com/popovicu/ultimate-linux
34•radeeyate•4h ago•7 comments

Show HN: Gaming Couch – a local multiplayer party game platform for 8 players

https://gamingcouch.com
96•ChaosOp•4d ago•16 comments

Python 3.15’s interpreter for Windows x86-64 should hopefully be 15% faster

https://fidget-spinner.github.io/posts/no-longer-sorry.html
351•lumpa•17h ago•112 comments

Tiled Art

https://tiled.art/en/home/?id=SilverAndGold
85•meander_water•6d ago•3 comments

Fahrplan – 39C3

https://fahrplan.events.ccc.de/congress/2025/fahrplan/
184•rurban•11h ago•21 comments

TurboDiffusion: 100–200× Acceleration for Video Diffusion Models

https://github.com/thu-ml/TurboDiffusion
18•meander_water•3h ago•3 comments

The entire New Yorker archive is now digitized

https://www.newyorker.com/news/press-room/the-entire-new-yorker-archive-is-now-fully-digitized
388•thm•5d ago•54 comments

Tachyon: High frequency statistical sampling profiler

https://docs.python.org/3.15/library/profiling.sampling.html
25•vismit2000•3d ago•1 comments

CUDA Tile Open Sourced

https://github.com/NVIDIA/cuda-tile
166•JonChesterfield•6d ago•67 comments

When a driver challenges the kernel's assumptions

http://miod.online.fr/software/openbsd/stories/udl.html
45•todsacerdoti•6h ago•9 comments

Paperbacks and TikTok

https://calnewport.com/on-paperbacks-and-tiktok/
104•zdw•3d ago•62 comments

Ask HN: What skills do you want to develop or improve in 2026?

52•meridion•14h ago•64 comments

Seven Diabetes Patients Die Due to Undisclosed Bug in Abbott's Glucose Monitors

https://sfconservancy.org/blog/2025/dec/23/seven-abbott-freestyle-libre-cgm-patients-dead/
179•pabs3•6h ago•66 comments

Asahi Linux with Sway on the MacBook Air M2 (2024)

https://daniel.lawrence.lu/blog/2024-12-01-asahi-linux-with-sway-on-the-macbook-air-m2/
219•andsoitis•16h ago•206 comments

The Program 2025 annual review: How much money does an audio drama podcast make?

https://programaudioseries.com/the-program-results-7/
61•I-M-S•3d ago•16 comments

Archiving Git branches as tags

https://etc.octavore.com/2025/12/archiving-git-branches-as-tags/
101•octavore•3d ago•29 comments

I sell onions on the Internet (2019)

https://www.deepsouthventures.com/i-sell-onions-on-the-internet/
414•sogen•14h ago•122 comments

Show HN: Lamp Carousel – DIY kinetic sculpture powered by lamp heat (2024)

https://evan.widloski.com/posts/spinners/
71•Evidlo•1d ago•13 comments

Google is 'gradually rolling out' option to change your gmail.com address

https://9to5google.com/2025/12/24/google-change-gmail-addresses/
181•geox•9h ago•145 comments

Critical vulnerability in LangChain – CVE-2025-68664

https://cyata.ai/blog/langgrinch-langchain-core-cve-2025-68664/
92•shahartal•12h ago•61 comments

Lessons from a year of Postgres CDC in production

https://clickhouse.com/blog/postgres-cdc-year-in-review-2025
7•saisrirampur•6d ago•0 comments

We invited a man into our home at Christmas and he stayed with us for 45 years

https://www.bbc.co.uk/news/articles/cdxwllqz1l0o
1004•rajeshrajappan•20h ago•238 comments

Alzheimer’s disease can be reversed in animal models? Study

https://case.edu/news/new-study-shows-alzheimers-disease-can-be-reversed-achieve-full-neurologica...
447•thunderbong•15h ago•110 comments

Fabrice Bellard Releases MicroQuickJS

https://github.com/bellard/mquickjs/blob/main/README.md
1447•Aissen•2d ago•542 comments

Who Watches the Waymos? I do [video]

https://www.youtube.com/watch?v=oYU2hAbx_Fc
283•notgloating•1d ago•105 comments

Clearspace (YC W23) Is Hiring a Founding Network Engineer (VPN and Proxy)

https://www.ycombinator.com/companies/clearspace/jobs/5LtM86I-founding-network-engineer-at-clears...
1•anteloper•13h ago

Governments in the West Are Turning Their Sights on VPNs

https://www.nakedcapitalism.com/2025/12/in-their-total-war-on-online-privacy-the-liberal-democrac...
44•indigodaddy•5h ago•11 comments