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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!

Ben Bernanke Appointed to Anthropic's Long-Term Benefit Trust

https://www.anthropic.com/news/ben-bernanke
1•surprisetalk•41s ago•0 comments

LLMs do not have a subconscious

1•lamprouge•2m ago•0 comments

Ask HN: Does anyone let AI agents play games just for fun?

1•nodivbyzero•3m ago•0 comments

Show HN: The trust and verification layer for AI-generated code changes

https://github.com/lambda-alpha-labs/Graphenium
1•Graphenium•3m ago•0 comments

The Next Chapter for ChatGPT

https://www.youtube.com/watch?v=Wq45rvPGNHs
2•mrcwinn•3m ago•0 comments

Nvidia announces 14 new GeForce cards, but none of them have a GPU

https://videocardz.com/newz/nvidia-announces-14-new-geforce-cards-but-none-of-them-have-a-gpu
1•TheJCDenton•3m ago•0 comments

OpenAI GPT-5.6 livestream today at 10am PT

https://openai.com/live/
3•j-b•4m ago•1 comments

Show HN: I made my Mac moan every time someone pays me:D

https://www.slapmetrics.com
2•launchpact_io•6m ago•0 comments

The Problem with Google's A.I. Overview

https://www.nytimes.com/2026/07/08/opinion/ai-google-gemini-search-questions.html
1•amatheus•7m ago•0 comments

Is a literary mag connected to the killing of a head of state?

https://www.discordiareview.com/p/sigrid-rausing-granta-ai-swedish-assassination
1•theanonymousone•8m ago•0 comments

Show HN: A source-linked product research page

https://www.bettascore.ai
1•tsxng44•9m ago•0 comments

OpenAI's AI beats every human at AtCoder, a top competitive programming contest

https://the-decoder.com/openais-ai-beats-every-human-at-atcoder-a-top-competitive-programming-con...
1•tegeek•10m ago•1 comments

Show HN: Elsewhere – a local POSSE CLI for static-site writers

https://github.com/EthanPlant/Elsewhere
1•ethanplant•11m ago•0 comments

Why AI Orchestration Beats Bigger Context Windows

https://medium.com/@alanscottencinas/why-ai-orchestration-beats-bigger-context-windows-f65179b28854
2•encinas88•11m ago•0 comments

1.5M Words

https://eveoganda.blogspot.com/2026/07/15-million-words.html
1•speckx•11m ago•0 comments

Mixture of Actors

https://peerd.ai/blog/posts/mixture-of-actors
1•NotASithLord•12m ago•0 comments

What If Gmail Had Been Designed by Microsoft (2007)

https://blogoscoped.com/archive/2007-11-20-n35.html
2•andy99•13m ago•0 comments

Is Life Just Different?

https://www.quantamagazine.org/is-life-just-different-20260708/
1•Brajeshwar•13m ago•0 comments

From Business Intelligence to Network Intelligence

https://docs.oso.xyz/blog/network-intelligence/
1•ryscheng•13m ago•0 comments

Are We Governed by AI Yet?

https://unskilled.blog/posts/are-we-governed-by-ai-yet/
1•lcof•14m ago•0 comments

Flight of fancy: San Francisco moves to build private luxury airport terminal

https://www.theguardian.com/us-news/2026/jul/09/san-francisco-airport-private-terminal
2•mitchbob•14m ago•0 comments

Show HN: Outside Agent – Build SMS Agents from Claude Code

https://outsideagent.ai/
1•jacobgc•19m ago•0 comments

Band Lit Settles Sony Lawsuit over 'Streaming' Clause from 1998

https://www.billboard.com/pro/my-own-worst-enemy-band-lit-settles-sony-streaming-lawsuit/
1•jaredwiener•20m ago•0 comments

Show HN: Heresyour.site

https://heresyour.site
1•tim33•20m ago•0 comments

Show HN: Embersent – Document Tracking and Analytics

https://embersent.com/
1•21oq•21m ago•0 comments

Show HN: MemLedger – AI agent memory you can trust

https://github.com/riktar/memledger
1•riktar•21m ago•0 comments

Show HN: GodUI – Open-source React components with a shared motion system

https://godui.design
1•lucasbassetti•22m ago•1 comments

AI 2040: Plan A

https://ai-2040.com/
12•kschaul•24m ago•1 comments

Plan A

https://www.astralcodexten.com/p/introducing-plan-a
1•toomuchtodo•24m ago•0 comments

The Quiet Overlap How Personalized AI Meets the Battlefield

https://twmrg.substack.com/p/the-quiet-overlap-how-personalized
1•alfino•24m ago•0 comments