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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!

An Accidental Blackboard

https://martinfowler.com/articles/exploring-gen-ai/an-accidental-blackboard.html
1•javaeeeee•33s ago•0 comments

Gemini 3.8 Flash Arrives, Promptly Mocked by Rivals

https://chinaonchina.com/article/gemini-3-8-flash-debuts-promptly-mocked-by-rivals
1•try-working•1m ago•0 comments

ZJIT GC: Inlining GC Fastpath in ZJIT

https://railsatscale.com/2026-09-01-zjit-gc-fastpath/
1•riffraff•2m ago•0 comments

Agent-manager: The fastest workflow for every coding agent

https://agent-manager.dev/
1•yoanwaidev•8m ago•1 comments

LTO Tape Shipments Up 57% in Q1 2026 as AI and Archive Demand Accelerate

https://www.storagereview.com/news/lto-tape-shipments-up-57-in-q1-2026-as-ai-and-archive-demand-a...
2•giuliomagnifico•14m ago•0 comments

Winston – Senior AI Platform Engineer – Remote (NA or India Preferred)

https://winston.team
1•anbarasiu•14m ago•0 comments

Agent Plugins Specification

https://agent-plugins.org/specification
1•saikatsg•15m ago•0 comments

Jujutsu 0.45.0 Release

https://github.com/jj-vcs/jj/releases/tag/v0.45.0
1•olexsmir•15m ago•0 comments

Show HN: Read-only script to check if ChatGPT desktop is burning Codex quota

https://github.com/hankwangtw/chronicle-quota-check
1•hankwangtw•16m ago•0 comments

(3) The 80/20 rule for your whole life

https://yewjin.substack.com/p/always-be-curious
1•kiyanwang•18m ago•0 comments

The Drucker Drift

https://seths.blog/2026/08/the-drucker-drift/
1•kiyanwang•19m ago•0 comments

Fast disk scanning powered by a native Rust engine

https://diskraptor.com/en/
1•hansjoerghofer•19m ago•1 comments

Every Noise at Once

https://everynoise.com/
1•Aldipower•19m ago•0 comments

Petras: National Centre of Excellence for IoT Systems Security

https://www.cybersecurityintelligence.com/petras-iot-hub-3228.html
1•teleforce•19m ago•0 comments

Memo from 1970: 'A Plan for Putting the GOP on TV News' (2011)

https://www.poynter.org/reporting-editing/2011/memo-from-1970-a-plan-for-putting-the-gop-on-tv-news/
1•robtherobber•20m ago•0 comments

Type Hints in Python Libraries and Frameworks: An Empirical Analysis of Adoption

https://arxiv.org/abs/2609.02782
1•runningmike•21m ago•1 comments

Is Your City Prepared for Climate Disaster?

https://www.nytimes.com/2026/09/03/realestate/is-your-city-prepared-for-climate-disaster.html
1•gumby•23m ago•0 comments

Anthropic Sued for False Advertising on Claude Max Subscription Usage Limits

https://www.cnet.com/tech/services-and-software/anthropic-sued-alleged-false-advertising-claude-m...
2•mgh2•28m ago•0 comments

Marvin – Open-source macOS AI coding IDE that learns from its own sessions

https://github.com/RobertIlisei/MARVIN
2•robertilisei•28m ago•0 comments

OpenEffects – A Linux Native webcam effects engine

https://github.com/funinkina/openeffects
3•plaguna•28m ago•0 comments

'Supersizing before our eyes': UN warns of record El Niño approaching

https://www.theguardian.com/environment/2026/sep/03/el-nino-supersizing-before-our-eyes-united-na...
4•tahs•29m ago•0 comments

AI agents are hacking systems without any input from humans

https://www.pbs.org/newshour/science/ai-agents-are-hacking-systems-without-any-input-from-humans-...
1•geox•31m ago•0 comments

Show HN: "TikTok for ChatGPT"

https://twitter.com/_boraturan/status/2095445469354729607
1•boraturan•34m ago•0 comments

WebMCP

https://learn.chatgpt.com/docs/webmcp
3•tosh•34m ago•0 comments

Wealthsimple: One Year Post-Acquisition

https://performance.dev/wealthsimple-year-one
1•ErenayDev•34m ago•0 comments

Show HN: Guess the Pelican

https://doruksega.github.io/guessthepelican/
2•doruk101•35m ago•0 comments

Claude for Commerce Agents

https://claude.com/blog/claude-for-commerce-agents
2•ashazal•40m ago•0 comments

China Is Flatlining

https://www.theatlantic.com/international/2026/08/china-beijing-communist-xi-favorability/688454/
1•cisc•42m ago•0 comments

What's the difference between a script-kiddy and a real developer?

https://textlog.cc/post/3048
1•stagas•44m ago•0 comments

Uber: Wave of Layoffs for the Foot Soldiers

https://www.heise.de/en/news/Uber-Wave-of-layoffs-for-the-foot-soldiers-11439084.html
2•doener•47m ago•0 comments