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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!

A prize-winning story published in Granta was (likely) written by AI

https://lithub.com/a-prize-winning-story-published-in-granta-was-very-likely-written-by-ai/
1•KnuthIsGod•2m ago•0 comments

Freezing Your Cake

https://taylor.town/20260518
1•Curiositry•4m ago•0 comments

ChatGPT-generated story won a prestigious literary prize

https://www.wired.com/story/commonwealth-short-story-prize-ai-allegations/
1•KnuthIsGod•6m ago•0 comments

Xezim – a Rust-based SystemVerilog simulator

https://github.com/aionhw/xezim
1•bondanr•7m ago•0 comments

We Got a CISA GitHub Leak Taken Down in Under a Day

https://blog.gitguardian.com/how-we-got-a-cisa-github-leak-taken-down-in-26-hours/
1•saikatsg•11m ago•0 comments

Istio 1.30.0 (Including Agentgateway)

https://istio.io/latest/news/releases/1.30.x/announcing-1.30/
1•qmarchi•12m ago•1 comments

India's hottest district shuts at 10 am as mercury breaches 48 C mark

https://www.hindustantimes.com/india-news/indias-hottest-district-banda-shuts-at-10-am-as-mercury...
10•rustoo•17m ago•1 comments

Personal AI for your real life. – Maple

https://www.trymaple.ai/
1•janandonly•17m ago•0 comments

Gelatine Sculpt and the Viral Gelatin Trick for Weight Loss

https://finance.yahoo.com/sectors/healthcare/articles/gelatine-sculpt-exploding-2026-viral-142500...
1•tayxwaro•18m ago•0 comments

Bubbles: Blog Post Discovery

https://bubbles.town/
1•bjhess•19m ago•0 comments

Solo Founder creating something for other Founders

https://www.ienox.dev/
1•vaishcodescape•21m ago•1 comments

Aspirations and Inequality (2017) [pdf]

https://www.econometricsociety.org/publications/econometrica/2017/03/01/aspirations-and-inequality
2•thunderbong•23m ago•0 comments

Systems Are Changing: The Architect's Role in the Era of Agentic Co-Design

https://www.sigarch.org/architecture-systems-are-changing-the-architects-role-in-the-era-of-agent...
1•matt_d•24m ago•0 comments

Werkstattprosa

https://werkstattprosa.substack.com/
1•tjubuu•26m ago•0 comments

A new whale detection network launches in SF Bay, alerting ships in real time

https://apnews.com/article/climate-marine-heat-wave-whale-boats-ai-5a12ce2ad68929a54ebac84ef2824ac0
2•divbzero•28m ago•0 comments

Code-Specify-Test-Debug-Prove: Flexibly Integrating Separation Logic [pdf]

https://www.cl.cam.ac.uk/~pes20/pldi2026-paper155-supplementary.pdf
1•matt_d•31m ago•0 comments

Testing MiniMax M2.7 via API on three real ML and coding workflows

https://andlukyane.com//blog/minimax-m27-workflows
2•Artgor•32m ago•0 comments

Show HN: FpgacapZero on BRS-100-GW1NR9 dev board

https://www.hackster.io/brisbanesilicon/supporting-fpgacapzero-on-the-brs-100-gw1nr9-442d56
1•brisbanesilicon•34m ago•0 comments

Applying for Funding Is Exhausting

1•nareshannm123•35m ago•0 comments

Manhattan Distance or Taxicab Geometry

https://en.wikipedia.org/wiki/Taxicab_geometry
2•lorenzohess•36m ago•0 comments

FriendHike – Find hiking buddies near you

https://friendhike.com
1•renatello•36m ago•1 comments

The Wedge Was After the Form Response

https://www.indiehackers.com/post/the-wedge-was-after-the-form-response-10d92e78a8
1•Lovanut•36m ago•0 comments

Show HN: Give This Markdown to Your Coding Agent Before Publishing to NPM

2•freakynit•39m ago•0 comments

Deel's "Accelerate or Die" Moment

https://www.onlycfo.io/p/deels-accelerate-or-die-moment
1•wapasta•40m ago•0 comments

Claude is telling users to go to sleep mid-session and nobody understands why

https://fortune.com/2026/05/14/why-is-claude-telling-users-to-go-to-sleep-anthropic-ai-sentient/
3•TMWNN•41m ago•1 comments

CNN: 'Russia is losing in Ukraine. China has noticed – Trump should too'

https://www.cnn.com/2026/05/20/politics/russia-losing-ukraine-mcgurk-analysis
2•MilnerRoute•42m ago•2 comments

Trying to figure out what Claude is helping in?

2•jaspanglia•44m ago•0 comments

Practice Guide for Computer [pdf]

https://codeberg.org/oneirophage/practice-guide-for-computer/raw/branch/main/guide.pdf
1•vermilingua•44m ago•0 comments

HN: SteelSpine replay tool for debugging AI agents

https://steelspine.ai
1•J_Felps•50m ago•1 comments

Hiring | AI Automation Engineer | Remote

2•saganrec•51m ago•1 comments