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How the EU's age-verification app for children would work

https://www.reuters.com/legal/litigation/how-eus-age-verification-app-children-would-work-2026-09...
1•cisc•43s ago•0 comments

Skia Compositor for WPE WebKit and WebKitGTK

https://blogs.igalia.com/carlosgc/2026/09/21/skia-compositor-for-wpe-webkit-and-webkitgtk/
1•pekim•1m ago•0 comments

A thing we may be able to learn from AI

https://wilsoniumite.com/2026/09/21/a-thing-we-may-be-able-to-learn-from-ai/
1•Wilsoniumite•2m ago•0 comments

Zep.js: tiny event pipeline with auto-cleanup, debounce and AbortSignal

https://github.com/marsbos/zep
1•markolb•6m ago•1 comments

Agent Needs an Unknown State

https://www.drjoshcsimmons.com/writing/your-agent-needs-an-unknown-state
1•joshcsimmons•7m ago•0 comments

Security: PolinRider malware detected in two open PRs (#7716, #10321)

https://github.com/shadcn-ui/ui/issues/11971
1•fr0th•8m ago•0 comments

Digital euro makes debut in wholesale financial markets

https://www.ft.com/content/9f57e612-1068-43ab-889a-febad1602c4a
3•thm•12m ago•0 comments

Weather2 – new SQL datasets and multilingual dashboard

1•yahikoyama•13m ago•0 comments

How to Smash the Memory Wall Plaguing High Performance Systems

https://www.nextplatform.com/store/2026/09/16/how-to-smash-the-memory-wall-plaguing-high-performa...
1•rbanffy•14m ago•0 comments

Thomson Reuters: Thomson-1.0-Small

https://huggingface.co/thomsonreuters/Thomson-1.0-Small
3•tosh•15m ago•0 comments

Show HN: Deskies – ambient presence for friends across companies

https://deskies.vercel.app/
1•bchhabra2490•15m ago•0 comments

AI Poster Prompts Improved

https://john.hartnup.uk/2026/09/20/poster-prompts-v2.html
1•ereiamjh•18m ago•2 comments

Frontier Overhangs

https://stratechery.com/2026/frontier-overhangs/
1•swolpers•19m ago•0 comments

New air traffic control failure delays flights at UK airports

https://www.reuters.com/world/uk/delays-uks-manchester-airport-over-air-traffic-control-failure-t...
2•rstreefland•24m ago•0 comments

You have more influence over the future than you think

https://sharif.io/better-future
1•Samin100•24m ago•0 comments

Quantum Gravity, UAPs, Wormholes

https://twitter.com/JackSarfatti/status/2101775865789223054
1•DanielBMarkham•25m ago•0 comments

Linker I/O tricks and their downsides

https://maskray.me/blog/linker-io-tricks-and-their-downsides
1•r4um•26m ago•0 comments

Engineering Memory: Thoughts on learning to memorize first 100 digits of pi

https://gregorygundersen.com/blog/2024/12/21/engineering-memory/
3•fuzzythinker•27m ago•0 comments

Finding Bugs

https://matklad.github.io/2026/09/19/finding-bugs.html
1•r4um•29m ago•0 comments

Show HN: Race – Terminal Multiplexer on Infinite Canvas (macOS and Linux Beta)

https://race-term.com/
2•xlii•31m ago•0 comments

Show HN: A GUI for non programmers for Epic's version control system Lore

https://www.anchorpoint.app/lore
1•m_niedoba•33m ago•0 comments

Intel Ends Its $100k Bug Bounty Program

https://www.techpowerup.com/352872/intel-ends-its-usd-100-000-bug-bounty-program
3•giuliomagnifico•38m ago•0 comments

Show HN: A solar-powered, privacy-preserving vehicle counter (Pi 5 and YOLOv8)

https://www.mch170.com/projects/traffic_monitoring
1•MCH170•40m ago•0 comments

The PopuList

https://popu-list.org/
2•futurecat•47m ago•0 comments

Dialedin – Put your lab PDFs, protocols and daily logs on one timeline

https://dialedin.bio
1•redigaffi•52m ago•0 comments

Trump Ramps Up Bid to Dismantle International Criminal Court

https://www.wsj.com/politics/policy/trump-administration-prepares-to-sanction-the-international-c...
7•TechTechTech•53m ago•1 comments

Notorious cybercrime group claims hijack of rival's website

https://www.reuters.com/legal/government/cybercrime-feud-erupts-dark-web-notorious-group-claims-h...
1•HelloUsername•55m ago•0 comments

Rust+Box2D Browser Physics Sandbox with Multiplayer

https://v-yanakiev.itch.io/machina
1•v-yanakiev•55m ago•1 comments

Nvidia boss says there is '0% chance' AI destroys the world by 2030

https://www.theguardian.com/technology/2026/sep/21/nvidia-boss-jensen-huang-dismisses-warnings-ai...
5•01-_-•1h ago•3 comments

Kaohsiung adds new hub to semiconductor corridor

https://www.taiwannews.com.tw/news/6443294
1•01-_-•1h ago•1 comments
Open in hackernews

Show HN: Reaktiv – I built Excel-like reactive programming for Python

https://bui.app/when-frontend-reactivity-meets-backend-python-the-story-of-my-first-1-000-download-library/
2•buibuibui•1y ago
Hi HN! I created Reaktiv, a Python library bringing reactive programming to the backend world that recently hit 1,000+ monthly downloads.

I'm actively promoting it because I believe signal-based reactivity (a concept that spread rapidly in frontend development) has huge untapped potential in Python. My breakthrough came when I stopped describing it as "Angular signals for Python" and started calling it "Excel-like computation graphs" - suddenly Python developers understood the value.

The library automatically tracks dependencies between computations, only recalculating values when dependencies change. This eliminates manual dependency tracking, prevents synchronization bugs, and reduces cognitive load when managing complex state.

Interestingly, I've noticed some initial interest from data scientists, though I'm still exploring what specific problems it might solve for them. I also believe the Home Assistant/IoT communities could benefit greatly from this approach.

Would love your thoughts on bringing frontend patterns to backend development!