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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•8mo 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!

Nano Banana Pro-Studio-Quality AI Image GeneratorNano Banana Pro

https://bananapro.pro/
1•guowuzong•35s ago•1 comments

Alternatives to MinIO for single-node local S3

https://rmoff.net/2026/01/14/alternatives-to-minio-for-single-node-local-s3/
1•birdculture•1m ago•0 comments

One can mock the righteous, but Google won't index it

https://philip.greenspun.com/blog/2026/01/17/one-can-mock-the-righteous-but-google-wont-index-it/
1•mhb•1m ago•0 comments

Corporate Governance Authoritarianism

https://www.businesslawprofessors.com/2026/01/corporate-governance-authoritarianism/
1•_delirium•6m ago•0 comments

ComfyUI – Overview

https://docs.comfy.org/development/overview
1•eustoria•6m ago•0 comments

The Malloc Maleficarum (2005)

https://seclists.org/bugtraq/2005/Oct/118
1•todsacerdoti•6m ago•0 comments

The thing that brought me joy

https://www.stephenlewis.me/blog/the-thing-that-brought-me-joy/
1•monooso•7m ago•0 comments

From culinary dud to stud: how Dutch plant breeders built a brussels sprouts boo

https://www.npr.org/sections/thesalt/2019/10/30/773457637/from-culinary-dud-to-stud-how-dutch-pla...
2•fanf2•7m ago•0 comments

U.S. Habits That Shock the Rest of the World

https://www.buzzfeed.com/jennaguillaume/strange-american-customs
2•eustoria•8m ago•0 comments

How Computers Work

https://www.aweineverything.com/how-computers-work/
1•tadaspetra•9m ago•0 comments

The crisis whisperer: how Adam Tooze makes sense of our bewildering age

https://www.theguardian.com/business/2026/jan/15/the-crisis-whisperer-how-adam-tooze-makes-sense-...
3•hackandthink•12m ago•0 comments

Facing the Paradox of Software Visualization

https://dundalek.com/entropic/softviz-paradox/
1•vitalnodo•12m ago•0 comments

Darwin Core

https://en.wikipedia.org/wiki/Darwin_Core
1•tosh•12m ago•0 comments

Musk seeks up to $134B from OpenAI and Microsoft in 'wrongful gains'

https://www.cnbc.com/2026/01/17/musk-lawsuit-opena-microsoft.html
2•dhfbshfbu4u3•14m ago•0 comments

Show HN: Xarticles – Browse X articles by category

https://xarticles.io/
1•vierj•19m ago•0 comments

FreeBSD 15.1 Aims to Have KDE Desktop Installer Option

https://www.phoronix.com/news/FreeBSD-15.1-KDE-Desktop-Option
2•mikece•19m ago•0 comments

Raising money fucked me up

https://blog.yakkomajuri.com/blog/raising-money-fucked-me-up
2•yakkomajuri•20m ago•0 comments

AWS databases now live on Vercel Marketplace and v0

https://vercel.com/blog/aws-databases-are-now-live-on-the-vercel-marketplace-and-v0
1•braebo•21m ago•0 comments

Show HN: Interactive timeline of US Military bases and interventions, 1900–today

https://metaphorician.com/american-empire
1•metaphorician•21m ago•0 comments

QucsStudio: A free and powerful circuit simulator

https://qucsstudio.de/
1•teleforce•22m ago•0 comments

I Used Claude to Build a Transcription Bot That Learns from Its Mistakes

https://www.macstories.net/stories/how-i-used-claude-to-build-a-transcription-bot-that-learns-fro...
2•tosh•23m ago•0 comments

Reverse Engineering a Biometric Attendance Machine

https://www.onlydarshan.com/posts/first_blog
2•leon3rd•24m ago•0 comments

ICML Experimental Program Using Google's Paper Assistant Tool (PAT)

https://blog.icml.cc/2026/01/14/icml-experimental-program-using-googles-paper-assistant-tool-pat/
1•fahrbach•24m ago•0 comments

Show HN: Upseated – Swap airplane seats with other passengers

https://upseated.com/
1•ndshrubs•25m ago•1 comments

Automation Isn't Innovation

3•geroge_kyaw•30m ago•0 comments

Writes vs. Talks About Software

https://substack.com/inbox/post/184880745
3•markferree•30m ago•0 comments

Trump vows tariffs on eight European nations over Greenland

https://www.reuters.com/world/europe/trump-vows-tariffs-eight-european-nations-over-greenland-202...
4•TechTechTech•31m ago•0 comments

My free biohacking database with AI matching turns 1

https://dopamine.club/
2•ainthusiast•35m ago•1 comments

Worse Than the Dot Com Bubble

https://www.wheresyoured.at/dot-com-bubble/
2•abhi_kr•36m ago•1 comments

Ask HN: Best book(s) to learn Assembly as a first language

1•abkt•36m ago•0 comments