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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!

Floating wind turbines could soon power AI data centers at sea

https://electrek.co/2026/03/05/floating-wind-turbines-could-soon-power-ai-data-centers-at-sea/
1•JeanKage•1m ago•0 comments

GPT-5.4 in Microsoft Foundry

https://techcommunity.microsoft.com/blog/azure-ai-foundry-blog/introducing-gpt-5-4-in-microsoft-f...
1•swaminarayan•2m ago•0 comments

Skyrim, Starfield, and the risks of AI-generated content

https://yadin.com/notes/generated/
1•dryadin•4m ago•0 comments

Show HN: ABES – a memory architecture for belief revision in AI agents

https://github.com/Aftermath-Technologies-Ltd/adaptive-belief-ecology-system
1•bradkinnard•6m ago•0 comments

Open Call for Posters [Center for Human-Compatible AI]

https://workshop.humancompatible.ai/#call-for-posters
1•chai-admin•12m ago•1 comments

How Munich became an engine for defence start-ups

https://www.ft.com/content/162076f9-3eed-4b11-9a36-d5717c8b357b
1•rustoo•14m ago•0 comments

Show HN: A simple, auto-layout family tree generator

https://familytreeeasy.com
3•familytreeeasy•17m ago•0 comments

Ask HN: How are LLMs supposed to be used for warfare?

1•sirnicolaz•17m ago•2 comments

GPT-5.4 Scores 0.62 F1 on Understanding Handwritten Edits in Dickens

https://dorrit.pairsys.ai/
2•svcrunch•19m ago•0 comments

Ask HN: Do AI startups even bother with patents anymore?

1•maxtqw•22m ago•1 comments

Show HN: EnvSentinel – contract-driven .env validation, zero dependencies

https://github.com/tweakyourpc/envsentinel
1•tweakyourpc•24m ago•0 comments

A basket of new fruit varieties is coming your way

https://www.economist.com/science-and-technology/2026/03/04/a-basket-of-new-fruit-varieties-is-co...
1•vinni2•26m ago•0 comments

Quantized Hall Drift in a Frequency-Encoded Photonic Chern Insulator

https://link.aps.org/doi/10.1103/2dyh-yhrb
1•westurner•26m ago•0 comments

Qcut – Free browser video editor (no install, no signup)

https://qcut.app/
3•martin_renaud•30m ago•2 comments

Claude Code Compaction Viewer

https://github.com/swyxio/claude-compaction-viewer/
1•handfuloflight•33m ago•0 comments

Modular Diffusers – Composable Building Blocks for Diffusion Pipelines

https://huggingface.co/blog/modular-diffusers
3•nathanmarz•33m ago•0 comments

Ask HN: Do you have a good solution for isolated workspaces per project?

1•straydusk•39m ago•0 comments

TeX Live 2026 is available for download now

https://www.tug.org/texlive/acquire.html
12•jithinraj•52m ago•3 comments

Show HN: Triplecheck – Review your code free with local LLMs

https://github.com/raullenchai/triplecheck
1•raullen•1h ago•0 comments

Gemini-flash-latest silently broke Search grounding for 1 month

2•takibboinz•1h ago•0 comments

Show HN: AI Benchy – AI benchmarks and comparisons

https://aibenchy.com/
1•XCSme•1h ago•0 comments

Did anyone try this Docker desktop alternative?

https://www.empiricapps.com/zenithal/download
1•mburlac•1h ago•0 comments

Caroline affair – eventually influencing the development of international law

https://en.wikipedia.org/wiki/Caroline_affair
1•vinnyglennon•1h ago•0 comments

Show HN: WingNews – Htmx Hacker News Reader

https://news.wingman.actor/
2•ChaseRensberger•1h ago•0 comments

AI Doesn't Remember Yesterday. How to Design Team Memory for AI Workflows

https://github.com/htuzel/flalingo-mem-bridge
2•htuzel•1h ago•2 comments

Ask HN: Wish Linux tmpfs support compression option

2•gry_gh•1h ago•0 comments

Howard Abrams' Literate Programming with Org Mode [video]

https://www.youtube.com/watch?v=OUuz9-CtCwY
2•todsacerdoti•1h ago•0 comments

My SoC Analyst Writeup – Support by star, thanks guys

https://github.com/ogtamimi/SOC-Analyst-WriteUp-LetsDefend.io
2•ogtamimi•1h ago•0 comments

Create PDF Resume

https://createpdfresume.com/
1•tahirasadov•1h ago•0 comments

All of you doubted me, and said I was hallucinating on AI

https://ryanshamim.substack.com/p/the-inference-efficiency-paradox
1•anima-core•1h ago•1 comments