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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!

Head of ADL claims they are "cleaning up" AI and Wikipedia

https://twitter.com/infolibnews/status/2115106467460108731
1•newspaper1•32s ago•0 comments

Ask HN: Do u think there should be a auto recovery tool for agents?

1•willlzl•37s ago•0 comments

Finding Frequencies Without an FFT: Sinusoids as Autoregressive Models

https://www.sithankanna.com/posts/prony-method.html
1•hdit•2m ago•0 comments

Acoustic-piezoelectric energy model of the Great Pyramid (Zenodo preprint)

https://zenodo.org/records/23644594
1•psssst•3m ago•0 comments

Nanotyrannus skeleton sells for $47.3M in New York auction

https://www.bbc.com/news/articles/cmx28de233r2o
1•jhy•3m ago•0 comments

New Dwarf Planet Candidate in Our Solar System

https://rubinobservatory.org/news/rubin-first-dwarf-planet-candidate
2•pppone•3m ago•0 comments

Hurricane Katrina

https://en.wikipedia.org/wiki/Hurricane_Katrina
1•chistev•3m ago•0 comments

"The panic hasn't turned into patching" The PHP2Shell response

https://thenewstack.io/php2shell-unpatched-php-servers/
1•CrankyBear•4m ago•0 comments

Roko's Basilisk

https://en.wikipedia.org/wiki/Roko%27s_basilisk
2•CGMthrowaway•6m ago•0 comments

One year of Dioxus fullstack in production: the good, the painful

https://oxidt.com/blog/one-year-of-dioxus-fullstack-in-production-the-good-the-painful
2•hauju•9m ago•0 comments

Orthofoto Map of Vienna

https://stp.wien.gv.at/basemap/#{%22center%22:[1515325.0116354537,6052376.146557523],%22zoom%22:7...
1•plurby•17m ago•0 comments

Summary of Tonight's Exit Polls – Netanyahu doesn't have a majority

https://twitter.com/israel_elects/status/2115178826909024568
2•spzx•17m ago•1 comments

Ossuary HolyC

https://yatovoid.itch.io/ossuary-holyc
1•andsoitis•17m ago•0 comments

Nathaniel Comfort's misguided take on The Selfish Gene at 50

https://whyevolutionistrue.com/2026/10/27/nathaniel-comforts-wonky-take-on-the-selish-gene-at-50/
2•myth_drannon•19m ago•0 comments

Meta launches plan for $95B stock offering to fund AI expansion

https://www.cnbc.com/2026/10/26/meta-stock-offering-ai.html
4•gmays•19m ago•0 comments

Show HN: Talkhawk, Wispr Flow-style dictation for Windows that runs on your PC

https://talkhawk.app/
1•yolovich•22m ago•0 comments

Show HN: Extending Axiom's PrimeGapsLib to prove parts 2 and 3 of Erdős #420

https://erdosproblems.ai/problems/420
1•NatalieTrono•29m ago•0 comments

Show HN: CleanCode – Claude Code and Codex collaborating on one canvas

https://github.com/chen-985211/cleancode
2•Tide-N•31m ago•2 comments

I used to be homeless. That experience shapes my science

https://www.science.org/content/article/i-used-be-homeless-experience-shapes-my-science
3•samizdis•31m ago•0 comments

DuckDB 2.0: Upgrade Now or Wait for 2.0.1?

https://query.farm/blog/duckdb-2-release-activity/
2•rustyconover•31m ago•0 comments

The AGI-pill is specialized robots

https://www.giacomoran.com/blog/agi-pill-specialized-robots/
2•ran3000•32m ago•0 comments

Secret-leak-scan-lite – scan repos for leaked credentials before you commit

https://github.com/NenadZivotic/secret-leak-scan-lite
1•Sone1994•36m ago•0 comments

I put an AI in the Garden of Eden. Then I introduced the serpent

https://www.reddit.com/r/ChatGPT/comments/1xh30mr/i_put_an_ai_in_the_garden_of_eden_then_i/
2•absurdwebsite•36m ago•0 comments

Early progress on accelerating drug development with Claude

https://www.anthropic.com/research/early-progress-drug-development
24•dataking•37m ago•2 comments

Raspberry Pi Zero 3W and Pi 4 Model A spotted in device trees

https://bret.dk/raspberry-pi-zero-3-w-pi-4-model-a/
7•sthlmb•39m ago•1 comments

Silo: Self-hosted media streaming, built on a modern stack

https://siloserver.org
1•mpgirro•41m ago•0 comments

In China, the AI bubble has burst

https://finance.yahoo.com/markets/stocks/articles/analysis-china-ai-bubble-already-120038616.html
10•smurda•44m ago•3 comments

Track all the layoffs happening around the world

https://layoffmap.com/
2•onmyway133•45m ago•2 comments

GM CEO: We're making leaps and bounds toward 'eyes-off, hands-off' driving

https://www.cnbc.com/2026/10/12/cramer-gm-eyes-off-driving-2028.html
3•RickJWagner•48m ago•1 comments

The US AI Labs, Part 2: The Suppliers Are Financing Their Own Customers

https://codingplans.dev/briefs/us-model-labs-part-2/
1•nedsma•51m ago•0 comments