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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•9mo 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!

Web-Git-sum – Git is not GitHub

https://mitxela.com/projects/web-git-sum
1•moebrowne•1m ago•0 comments

Trends in Prevalence of Autism by Adaptive and Intellectual Functioning Levels

https://onlinelibrary.wiley.com/doi/10.1002/aur.70167
1•hn_acker•3m ago•1 comments

Mamdani Hires Groundbreaking Computer Scientist as Chief Tech Officer

https://www.nytimes.com/2026/02/10/nyregion/mamdani-lisa-gelobter-gif.html
2•leephillips•4m ago•0 comments

Ask HN: Why electronics are still so unrecyclable?

2•alexandrehtrb•4m ago•0 comments

Stablecoins for Skeptics

https://news.alvaroduran.com/p/stablecoins-for-skeptics
1•ohduran•5m ago•0 comments

The Truth About No-KYC Crypto Cards, from Someone Who Ran One

https://twitter.com/defyneric/status/2021116183898886201
1•CrazyRobot•5m ago•0 comments

Who's the Agent Now?

https://danturkel.com/2026/02/11/agents.html
1•daturkel•5m ago•0 comments

Freenginx 1.29.5 Release

https://freenginx.org/en/CHANGES
1•neustradamus•6m ago•0 comments

Show HN: I built a tool to help generate short form videos

https://evokescenes.com/
1•delayedrelease•10m ago•1 comments

Show HN: SPICEBridge – MCP server for AI circuit design via ngspice

https://github.com/clanker-lover/spicebridge
1•clanker-lover•10m ago•0 comments

Blender source code was 9 files in January-8-1994

https://files.mastodon.social/media_attachments/files/115/825/585/900/044/589/original/b0c7ba495a...
2•marcodiego•10m ago•0 comments

The temporary closure of airspace over El Paso has been lifted

https://twitter.com/FAANews/status/2021583720465969421
1•lultimouomo•12m ago•1 comments

Sabotage Risk Report: Claude Opus 4.6 [pdf]

https://www-cdn.anthropic.com/f21d93f21602ead5cdbecb8c8e1c765759d9e232.pdf
1•rootforce•13m ago•0 comments

Chowla conjecture on the minimum of a cosine series

https://www.johndcook.com/blog/2026/02/07/chowla/
1•ibobev•13m ago•0 comments

Fibonacci numbers and time-space tradeoffs

https://www.johndcook.com/blog/2026/02/08/time-space-tradeoffs/
1•ibobev•13m ago•0 comments

"Have I Been Stalked" post-mortem

https://dustri.org/b/have-i-been-stalked-post-mortem.html
1•speckx•13m ago•0 comments

Computing Large Fibonacci Numbers

https://www.johndcook.com/blog/2026/02/08/computing-large-fibonacci-numbers/
1•ibobev•13m ago•0 comments

Life on Earth is lucky: A rare chemical fluke may have made our planet habitable

https://www.space.com/space-exploration/search-for-life/life-on-earth-is-lucky-a-rare-chemical-fl...
1•Brajeshwar•14m ago•0 comments

Lost Soviet Moon Lander May Have Been Found

https://www.nytimes.com/2026/02/10/science/luna-9-moon-lander-soviet.html
2•Brajeshwar•14m ago•0 comments

Scientists traced roses' thorny origins, solved a 400M-year-old mystery

https://www.cnn.com/2024/08/01/science/rose-thorn-prickles-evolution-study
1•Brajeshwar•14m ago•0 comments

Documentary Photographers Who Changed the Way We See the World

https://www.nga.gov/stories/articles/12-documentary-photographers-who-changed-way-we-see-world
1•cratermoon•15m ago•0 comments

Europe takes a big step towards a post-dollar world

https://pluralistic.net/2026/02/11/post-dollar-world/
2•hn_acker•17m ago•0 comments

Will China's Social Volcano Erupt?

https://pekinghotel.substack.com/p/will-chinas-social-volcano-erupt
1•simonebrunozzi•21m ago•0 comments

ICE Taps into School Security Cameras to Aid Trump's Immigration Crackdown

https://www.the74million.org/article/ice-taps-into-school-security-cameras-to-aid-trumps-immigrat...
5•speckx•21m ago•0 comments

Carmack on using long fiber lines as L2 cache for streaming AI data, alt to DRAM

https://www.tomshardware.com/pc-components/ram/john-carmack-muses-using-a-long-fiber-line-as-as-a...
1•gmays•21m ago•1 comments

Show HN: SafeClaw – a way to manage multiple Claude Code instances in containers

https://github.com/ykdojo/safeclaw
2•ykdojo•22m ago•0 comments

OpenClaw Chameleon Hype

https://zhisme.com/articles/openclaw-chameleon
1•zhisme•22m ago•0 comments

10-Second Product Launch Platform

https://www.makerlinks.page/launchfast
1•amamuwala•23m ago•0 comments

Centuries, not quarters. Wealth management for clients in suspended animation

https://atlasgatewealth.com/
1•dreadsword•25m ago•3 comments

Show HN: OneUptime – Open-source observability that auto-fixes incidents with AI

1•ndhandala•25m ago•0 comments