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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!

ShortSmash – prompt-to-published short videos, 50-language dubbing, open source

https://github.com/hydope/shortsmash
1•abicevoice1•56s ago•0 comments

Boeing's 737 MAX 7 gets certification from FAA

https://monocle.com/radio/shows/the-briefing/3875/
2•andsoitis•6m ago•0 comments

Zlodev – Local HTTPS reverse proxy with auto-certificates, custom DNS, and a TUI

https://github.com/vandot/zlodev
1•ivanvandot•8m ago•0 comments

Trump says Google kisses his ass

https://www.theverge.com/policy/1013485/trump-google-kiss-my-ass
2•cisc•11m ago•0 comments

Men in tech #YesAllMen – EMF 2026 [video]

https://www.youtube.com/watch?v=WXL6K1lhvt0
1•slater•12m ago•0 comments

Cultures Find Women's Faces to Be More Attractive Than Men's, a New Study

https://www.smithsonianmag.com/smart-news/people-across-cultures-find-womens-faces-to-be-more-att...
1•handfuloflight•15m ago•1 comments

Show HN: WhatsApp MCP running free on Cloudflare

https://github.com/finereli/whatsapp-mcp
2•zoozla•16m ago•0 comments

California and Louisiana have US's highest poverty rates when tied to COL

https://www.axios.com/2026/10/18/american-poverty-map-states-california-louisiana
2•cwwc•17m ago•0 comments

Machinarium 2 in Development [video]

https://www.youtube.com/watch?v=ZqcglWA1pDo
1•ZYZ64738•19m ago•0 comments

Subvert.fm AI Policy

https://www.subvert.fm/pages/ai-policy
2•MattSayar•23m ago•0 comments

A Critique of Standard ML (1992) [pdf]

https://www.cs.princeton.edu/~appel/papers/critique.pdf
2•swatson741•25m ago•0 comments

ParetoOps – CI gate on cost per successful task for LLM evals

https://paretoops.dev/
1•manasapalas•26m ago•0 comments

Show HN: OmniPTY – Opinionated terminal emulator for macOS and Linux

https://github.com/omnipty-terminal/omnipty
1•bobbycoleman-de•28m ago•0 comments

1939 Golden Gate International Exposition in Color

https://www.flickr.com/photos/thomashawk/albums/72177720328646191/
3•Lammy•29m ago•2 comments

Why do I update so easily?

https://cx-shipd.netlify.app
1•CX-Designs•38m ago•0 comments

Show HN: Nori – OSS Music Player optimized for battery usage

https://github.com/norifm/nori
1•bstrama•40m ago•0 comments

If you don't run your own LLM proxy, how do you even know whats going on?

https://jrdsgl.com/if-you-dont-run-your-own-llm-proxy-how-the-fuck-do-you-even-know-whats-going-on/
1•amrrs•43m ago•1 comments

Bloccy – A multimodal canvas for ChatGPT and Claude Desktop

https://bloccy.si/
2•raphaelsoeiro•43m ago•0 comments

Compagnies Républicaines de sécurité 8 – police unit countering urban violence

https://monocle.com/affairs/blue-brigade/
3•Bluestein•45m ago•0 comments

Dutch cloud services concerned after U.S. request leads to Amsterdam server seiz

https://nltimes.nl/2026/10/17/dutch-cloud-services-concerned-us-request-leads-amsterdam-server-se...
6•absqueued•47m ago•0 comments

Show HN: AwesomeMap – Discover rising open-source projects before they get big

https://awesomemap.dev/
1•haggai_shachar•52m ago•0 comments

Star Trek TNG: When the Bough Breaks (Wikipedia)

https://en.wikipedia.org/wiki/When_the_Bough_Breaks_(Star_Trek:_The_Next_Generation)
2•skywalqer•56m ago•1 comments

Most Polite Trucker in America Is Driverless 18-Wheeler on Texas Interstate

https://www.wsj.com/business/driverless-trucks-18-wheeler-aurora-35b89c45
3•bookofjoe•57m ago•1 comments

Show HN: Rubi – A knowledge graph that cuts how much Claude Code re-reads

https://github.com/YURIBEDRAN/rubi
1•yuribedran•57m ago•0 comments

Hybrid Reasoning Agents: LLM agents that think in latent space, act through text

https://arxiv.org/abs/2610.18861
43•allinonai•1h ago•18 comments

Netflix vmaf: Perceptual video quality assessment based on multi-method fusion

https://github.com/Netflix/vmaf
5•tosh•1h ago•2 comments

Amazon Acquires DuckLabs and Integrates DuckDB in Amazon Aurora PostgreSQL

https://www.infoq.com/news/2026/10/amazon-acquires-ducklabs/
2•mooreds•1h ago•1 comments

Show HN: LLM Usage Desktop Widget

https://github.com/aleph-void/LLM-Usage-Desktop-Widget
1•bootbloopers•1h ago•0 comments

RedMonk City Alerts

https://monksignal.com/
1•mooreds•1h ago•0 comments

Ever wondered how Noma-styled chefs build flavor pairings?

https://aroma-taste-matrix.vercel.app/
2•DrDizzle•1h ago•1 comments