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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•8mo 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!

Skidetica transforms emotion into a probability distribution, no user data

https://www.skidetica.com/manifesto
1•tracyrage•3m ago•0 comments

SMLL: Using 200MB of Neural Network to Save 400 Bytes

https://www.frankchiarulli.com/blog/smll/
1•fcjr•3m ago•0 comments

Meta-analysis claims statins are safer than previously thought

https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(25)01578-8/fulltext
1•brandonb•4m ago•0 comments

The Globalization of Canadian Rage

https://www.nytimes.com/2026/02/06/opinion/canada-america-anger-carney.html
1•Teever•4m ago•0 comments

WhatsApp Encryption, a Lawsuit, and a Lot of Noise

https://blog.cryptographyengineering.com/2026/02/02/whatsapp-encryption-a-lawsuit-and-a-lot-of-no...
1•lr0•6m ago•0 comments

I Spent 5 Years in DevOps. Solutions Engineering Gave Me What I Was Missing

https://infisical.com/blog/devops-to-solutions-engineering
1•vmatsiiako•7m ago•0 comments

Google has every advantage in AI. So why doesn't it lead?

1•HardCodedBias•8m ago•0 comments

Heroku is transitioning

https://twitter.com/heroku/status/2019788655095853479
2•tosh•9m ago•2 comments

How to fix your life in 1 day

https://letters.thedankoe.com/p/how-to-fix-your-entire-life-in-1
1•cachius•9m ago•0 comments

The Software Engineer's AI Contingency Plan

https://www.pizzaexperiments.com/2026/02/off-menu-software-engineers-ai.html
3•fairwarning•9m ago•0 comments

AI at Davos: Beyond the Model

https://14thesoul.substack.com/p/ai-at-davos-beyond-the-model
1•cafrealpao•9m ago•0 comments

How much "boilerplate tax" different languages have: a 400M LOC analysis

https://boyter.org/posts/boilerplate-tax-ranking-popular-languages-by-density/
1•lr0•13m ago•0 comments

Craft printing method makes affordable, realistic replicas as complex as a hand

https://techxplore.com/news/2026-01-craft-method-realistic-replicas-complex.html
1•PaulHoule•13m ago•0 comments

White House launches direct-to-consumer drug site TrumpRx

https://www.cnbc.com/2026/02/05/trump-rx-white-house-launches-direct-to-consumer-drug-site.html
6•geox•13m ago•0 comments

Prohibition worked better than you think (2019)

https://www.vox.com/the-highlight/2019/6/5/18518005/prohibition-alcohol-public-health-crime-benefits
1•DustinEchoes•15m ago•1 comments

A16Z Fellowship

1•BobbyKotick•16m ago•0 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
1•toborrm9•19m ago•1 comments

Show HN: XFolder 1.0.2 – A macOS file manager built with Avalonia

https://github.com/zebrapixel/XFolder/releases/tag/v1.0.2
1•dreampixel•19m ago•0 comments

Please don't share our Signal messages with your AI Agent

https://touchgrass.fightforthefuture.org/please-dont-share-our-signal-messages-with-your-ai-agent/
2•spacebear•20m ago•0 comments

I Thought Game Publishers Cared About Protecting Their IP? – Unpacked [video]

https://www.youtube.com/watch?v=RpPRpmHgGVY
1•Topfi•20m ago•0 comments

Fear and Loathing in the App Stores

https://appfair.org/blog/fear-and-loathing-in-the-app-stores/
1•marcprux•20m ago•0 comments

Show HN: A password system with no database, no sync, and nothing to breach

https://bastion-enclave.vercel.app
1•KevinChasse•21m ago•1 comments

Teleporting into the Future and Robbing Yourself of Retirement Projects

https://ghuntley.com/teleport/
1•Kerrick•21m ago•0 comments

Free Spreadsheet Analyzer

https://analyzetable.com
1•kouhxp•21m ago•0 comments

What Is Z-Angle Memory and Why Is Intel Developing It?

https://www.hpcwire.com/2026/02/05/what-is-z-angle-memory-and-why-is-intel-developing-it/
3•rbanffy•24m ago•0 comments

Show HN: Enhance – a TUI for GitHub Actions is now open source

https://www.gh-dash.dev/enhance/
1•dlvhdr•25m ago•0 comments

Show HN: Seatplan.io – To-scale event seating planner with collision detection

https://seatplan.io/
1•Sharanxxxx•26m ago•1 comments

Why traditional sleep advice doesn't work: What wearables and AI reveal

https://medium.com/@6thMind/why-traditional-sleep-advice-doesnt-work-what-wearables-and-ai-reveal...
1•smanuel•27m ago•0 comments

'Ripping' Clips for YouTube Reaction Videos Can Violate the DMCA, Court Rules

https://torrentfreak.com/ripping-clips-for-youtube-reaction-videos-can-violate-the-dmca-court-rules/
2•naves•27m ago•0 comments

The Sci-Fi Quants Dominating Europe's Most Volatile Power Market

https://www.bloomberg.com/news/features/2026-02-05/second-foundation-dominates-europe-s-power-mar...
1•doener•28m ago•0 comments