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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!

Beware the New AI-Fueled Ransomware Boom

https://www.wired.com/story/beware-the-new-ai-fueled-ransomware-boom/
1•saikatsg•32s ago•0 comments

Go 1.27's Generic Methods: Compile-Checked ORM Columns Without Generated Code

https://skudra.net/blog/field-pointers-as-column-names
1•birdculture•33s ago•0 comments

Code Red: Y2K Is Here

https://deadneurons.substack.com/p/code-red-y2k-is-here
1•nr378•49s ago•0 comments

New Species of Giant Fungus Discovered in China Grows Up to 20 Inches Tall

https://www.wired.com/story/new-species-of-giant-fungus-discovered-in-china-grows-up-to-20-inches...
1•saikatsg•1m ago•0 comments

Let your AI agent call you, over MCP

https://agline.in/mcp
1•franze•2m ago•0 comments

Things That Turbo Pascal Is Smaller Than (2011)

https://prog21.dadgum.com/116.html
1•ksec•6m ago•0 comments

HCSV (Hybrid CSV) – CSV with inline column types and bit-exact floats

https://cristian8vasile.substack.com/p/what-shipping-containers-can-teach
1•cristianvasile•6m ago•0 comments

Cursor: Pointer on Buttons

https://blog.kizu.dev/cursors/
1•shipitx•9m ago•0 comments

Hairpin – Reach macOS menu bar icons hidden by the notch

https://github.com/HiAriesZhou/Hairpin
2•AriesIMio•10m ago•0 comments

The Not-So-Crazy Legal Strategy to Free Nicolás Maduro

https://www.politico.com/news/magazine/2026/11/15/nicolas-maduro-trial-legal-strategy-01149709
1•ibn_khaldun•10m ago•0 comments

Booker Prize 2026: The End of Everything – First SF Winner, Oldest Laureate

https://www.betterreads.dev/blog/booker-prize-2026-end-of-everything
2•zlu•11m ago•0 comments

US investigators probe cause of tanker-cruise ship collision

https://www.abc.net.au/news/2026-11-15/tanker-cruise-ship-collison-investigation-new-orleans/1073...
1•firasd•16m ago•0 comments

Show HN: Every Satellite in Orbit Since 1957

https://berryde.com/projects/satellites/
1•daedbe•18m ago•0 comments

James Webb Telescope finds ice older than the star it orbits

https://arstechnica.com/science/2026/11/james-webb-telescope-finds-ice-older-than-the-star-it-orb...
2•Brajeshwar•18m ago•0 comments

Scientists Made Monkeys Watch Minions to Study Their Brains

https://www.404media.co/scientists-made-monkeys-watch-minions-to-study-their-brains/
2•Brajeshwar•19m ago•0 comments

The original Xbox was released 25 years ago today

https://www.tomshardware.com/video-games/xbox/the-original-xbox-was-released-25-years-ago-today-m...
2•Brajeshwar•19m ago•0 comments

Europa, the EU's open AI model, is aiming for nearly 1T parameters

https://maccus.fr/en/eu-open-ai-model-europa/
2•mstkllah•20m ago•0 comments

Singapore Government Clarification Statement on Wall Street Journal's Article

https://www.mha.gov.sg/media-room/newsroom/clarification-statement-on-wall-street-journals-article/
2•ksec•21m ago•2 comments

NeatStats – Simple, lightweight, privacy-first web stats

https://neatstats.net/
1•Tomte•23m ago•0 comments

Cramer: Insult to NV staff thinking NV is nothing without the leather-jacket guy

https://twitter.com/OutFrontCNN/status/2121064585033843071
1•ksec•24m ago•0 comments

Abyssal Garden: A dreamy underwater world you can swim through (96 KB HTML)

https://github.com/Noniv/abyssal-garden
2•soheilpro•25m ago•0 comments

Show HN: K8 Cruft – a Windows dev-junk cleaner with a 30-day undo

https://lilbuba.ai/k8-cruft.html
1•infinity_jo•28m ago•0 comments

Angry customers taking step so MS pays some for global outage losses

https://www.neowin.net/news/angry-customers-taking-step-so-microsoft-pays-some-for-massive-global...
2•croes•30m ago•0 comments

Ask HN: Has Applemail UX/reliability been declining?

1•devrob•31m ago•1 comments

Zero-Upload Data Cleaner

https://lopespm.com/p/cleaner/
1•lopespm•31m ago•0 comments

Stop building new AI agent orchestrators – there are 636

https://github.com/erson/awesome-agent-orchestrators/
2•pulkas•34m ago•0 comments

The MacBook Pro's OLED PWM Problem: When a 'Better' Display Becomes Worse to Use

https://macanorak.com/the-macbook-pros-oled-pwm-problem-when-a-better-display-becomes-worse-to-use/
4•MacAnorak•34m ago•0 comments

The Case for Reparations

https://unacceptable.nl/posts/reparations/
1•zwckl•35m ago•0 comments

Decompilation of Fallout: New Vegas: Completed

https://fnvdecomp.com/
2•subtle-byte•35m ago•0 comments

Scaling Citus without limits: announcing Query Routers

https://stackgres.io/blog/scaling-citus-beyond-one-coordinator-announcing-query-routers-stackgres/
1•ahachete•36m ago•0 comments