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Air Pollution in World: Real-Time Air Quality Index Visual Map

https://aqicn.org/map/world/
8•leksak•4h ago

Comments

seanmcdirmid•1h ago
Curious why this is here. It was my go to source for AQI data when I was living in Beijing, and I believe it is a Chinese site but the only evidence I have for that is that they have good Chinese data and the CN after AQI in their name. Beijing has cleaned up slot but I’m surprised to see bad air still in Hebei and Shandong.

Doing gigabit Ethernet over my British phone wires

https://thehftguy.com/2026/01/22/doing-gigabit-ethernet-over-my-british-phone-wires/
212•user5994461•4h ago•125 comments

XHTML Club

https://xhtml.club/
34•bradley_taunt•1h ago•37 comments

Many Small Queries Are Efficient in SQLite

https://www.sqlite.org/np1queryprob.html
54•tosh•3h ago•39 comments

How I Estimate Work as a Staff Software Engineer

https://www.seangoedecke.com/how-i-estimate-work/
52•mattjhall•4h ago•7 comments

Internet Archive's Storage

https://blog.dshr.org/2026/01/internet-archives-storage.html
209•zdw•3d ago•55 comments

I Like GitLab

https://www.whileforloop.com/en/blog/2026/01/21/i-like-gitlab/
63•lukas346•4h ago•40 comments

MS confirms it will give the FBI your Windows PC data encryption key if asked

https://www.windowscentral.com/microsoft/windows-11/microsoft-bitlocker-encryption-keys-give-fbi-...
48•blacktulip•1h ago•34 comments

Unrolling the Codex agent loop

https://openai.com/index/unrolling-the-codex-agent-loop/
385•tosh•18h ago•179 comments

Ask HN: May an Agent accepts a license to produce a build?

7•athrowaway3z•22m ago•3 comments

JVIC: New web-based Commodore VIC 20 emulator

https://vic20.games/#/basic/24k
10•lance_ewing•3h ago•2 comments

80386 Multiplication and Division

https://nand2mario.github.io/posts/2026/80386_multiplication_and_division/
70•nand2mario•8h ago•14 comments

FOSS "Just Fork It" Delusion

https://hamishcampbell.com/foss-just-fork-it-delusion/
44•mimasama•1h ago•47 comments

Proof of Corn

https://proofofcorn.com/
423•rocauc•20h ago•280 comments

Show HN: Coi – A language that compiles to WASM, beats React/Vue

124•io_eric•3d ago•48 comments

Extracting verified C++ from the Rocq theorem prover at Bloomberg

https://bloomberg.github.io/crane/
79•clarus•4d ago•6 comments

Management Time: Who's Got the Monkey? [pdf]

https://www.med.unc.edu/uncaims/wp-content/uploads/sites/764/2014/03/Oncken-_-Wass-Who_s-Got-the-...
19•rintrah•4d ago•3 comments

Modetc: Move your dotfiles from kernel space

https://maxwell.eurofusion.eu/git/rnhmjoj/modetc
33•todsacerdoti•6h ago•16 comments

“Let people help” – Advice that made a big difference to a grieving widow

https://www.npr.org/2026/01/20/nx-s1-5683170/let-them-the-small-bit-of-advice-that-made-a-big-dif...
97•NaOH•11h ago•15 comments

Traintrackr – Live LED Maps

https://www.traintrackr.co.uk/
69•recursion•5d ago•24 comments

Some C habits I employ for the modern day

https://www.unix.dog/~yosh/blog/c-habits-for-me.html
187•signa11•5d ago•110 comments

Gas Town's agent patterns, design bottlenecks, and vibecoding at scale

https://maggieappleton.com/gastown
357•pavel_lishin•22h ago•370 comments

Telli (YC F24) is hiring eng, design, growth [on-site, Berlin]

https://careers.telli.com/
1•sebselassie•7h ago

When employees feel slighted, they work less

https://penntoday.upenn.edu/news/penn-wharton-when-employees-feel-slighted-they-work-less
70•consumer451•4d ago•62 comments

Banned C++ features in Chromium

https://chromium.googlesource.com/chromium/src/+/main/styleguide/c++/c++-features.md
205•szmarczak•18h ago•173 comments

The fix for a segfault that never shipped

https://www.recall.ai/blog/the-fix-for-a-segfault-that-never-shipped
14•davidgu•3d ago•2 comments

Ask HN: What's the current best local/open speech-to-speech setup?

193•dsrtslnd23•1d ago•50 comments

Microsoft gave FBI set of BitLocker encryption keys to unlock suspects' laptops

https://techcrunch.com/2026/01/23/microsoft-gave-fbi-a-set-of-bitlocker-encryption-keys-to-unlock...
931•bookofjoe•20h ago•588 comments

Comma openpilot – Open source driver-assistance

https://comma.ai
309•JumpCrisscross•13h ago•168 comments

New YC homepage

https://www.ycombinator.com/
274•sarreph•20h ago•149 comments

Booting from a vinyl record (2020)

https://boginjr.com/it/sw/dev/vinyl-boot/
328•yesturi•1d ago•110 comments