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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!

Surprising gender biases in GPT (2024)

https://www.sciencedirect.com/science/article/pii/S2451958824001660
1•mpweiher•51s ago•0 comments

You don't have to build the model to compete in AI

https://www.purifigroup.com/index.html
1•jerondu•58s ago•0 comments

Proton Flock Camera Map

https://proton.me/flock-camera-map
1•cdrnsf•1m ago•0 comments

Raven: Install and run Windows applications on Linux with their own installers

https://useraven.org/
1•thunderbong•1m ago•0 comments

Forget the plague, this is the disease that will kill us all

https://mapwriting.substack.com/p/forget-the-plague-this-is-the-disease
4•kitkut•3m ago•0 comments

Focus: Why Everything Is Not for You

https://leveragethoughts.substack.com/p/everything-is-not-for-you
1•maverickJ•6m ago•1 comments

Why I Built Verto

https://jackdamon.org/blog/why-i-built-verto/
1•jdamon96•6m ago•0 comments

Payload: A super-small game engine that lets you share code via a URL

https://kitao.dev/playload/
1•nogajun•6m ago•0 comments

SIMD-accelerated computer vision on a $2 microcontroller

https://shraiwi.com/blog/simd-fast-esp32s3/
1•zdw•11m ago•0 comments

Why the EU avoids tackling Big Soccer

https://www.politico.eu/article/why-the-eu-avoids-tackling-big-soccer/
1•RickJWagner•12m ago•0 comments

HQL 0.5.2 Is Out

https://hql-lang.org/
1•divingstar•13m ago•0 comments

Serbia's ruler VučIć concedes election to student-led protest

https://www.bbc.com/news/articles/cw5yn3xlprpmo
2•Betelbuddy•15m ago•1 comments

Conservative party wins first election in nearly a century in BC

https://www.reuters.com/legal/litigation/conservative-party-wins-first-election-nearly-century-br...
1•Bluestein•16m ago•0 comments

Stop resetting privacy settings to default on updates #17107

https://github.com/anthropics/claude-code/issues/17107
2•DesaiAshu•18m ago•0 comments

Show HN: Glitchrupt: Glitch your desktop when your AI agent needs your attention

https://github.com/elbee19/glitchrupt
1•impish19•18m ago•0 comments

I want my Wednesday back

https://blog.luitjes.it/posts/i-want-my-wednesday-back/
2•birdculture•18m ago•0 comments

Germany's Idle Nuclear Plants Eye New Life as AI Data Centers

https://www.bloomberg.com/news/articles/2026-10-22/germany-s-idle-nuclear-plants-eye-new-life-as-...
2•gnabgib•20m ago•1 comments

Disadvantages of Designating Mathematicians for AI Output Releases

https://terrytao.wordpress.com/2026/10/25/disadvantages-of-designating-mathematicians-for-ai-outp...
1•smilelamp•22m ago•0 comments

Reasons to keep TF state files small (2024)

https://newsletter.masterpoint.io/p/3-reasons-to-keep-tf-state-files-small
1•mooreds•24m ago•0 comments

Nvidia eyes converting old nuclear plants into AI data centers

https://www.tomshardware.com/tech-industry/data-centers/nvidia-eyes-converting-old-nuclear-plants...
2•rbanffy•29m ago•1 comments

Show HN: Visualization of Top News Stories

https://www.topaztee.com/digglabs/
1•topaztee•30m ago•0 comments

Musk says SpaceX restricted Ukraine's Starlink connection as service restored

https://www.bbc.com/news/articles/cvx28ljp8n4xo
3•cisc•31m ago•0 comments

F45 (Fedora 45) Final Is No-Go

https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/EWDOYT6TOMFY4X...
3•gnabgib•31m ago•1 comments

Intelligence vs. cost scaled by real prices

https://www.parepdf.com/lab/openrouter-price-vs-intelligence.html
1•redman25•33m ago•1 comments

Fedora 45 Hits a Second No-Go: Not Releasing Until November

https://www.phoronix.com/news/Fedora-45-Second-NO-GO
1•rbanffy•37m ago•1 comments

Europe's summer heat wave killed more han 50k people in urban areas

https://www.science.org/content/article/europe-s-summer-heat-wave-killed-more-50-000-people-urban...
3•rbanffy•38m ago•0 comments

Black October (Information Security)

https://en.wikipedia.org/wiki/Black_October_(information_security)
1•tech234a•38m ago•0 comments

Show HN: Valence – Self-hosted media browser (Jellyfin/Plex alternative)

https://www.getvalence.app/
1•MarquesCoding•43m ago•0 comments

Show HN: I built an AI agent to find customers on Telegram while I sleep

https://opensparta.com/en
2•hp2090•47m ago•0 comments

A rising tide raises all rents

https://jyn.dev/rising-tide-raises-rents/
3•iamnothere•50m ago•1 comments