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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!

Ask HN: If you had to relearn Emacs today, how would you?

1•Varelion•3m ago•0 comments

A 0-Click Exploit Chain for the Pixel 10

https://blackhat.com/us-26/briefings/schedule/#a-0-click-exploit-chain-for-the-pixel-10-53404
1•bordercontrol•3m ago•0 comments

Lynn Hill – First free ascent of the sheer rock face of The Nose on El Capitan

https://en.wikipedia.org/wiki/Lynn_Hill
1•gurjeet•7m ago•0 comments

Show HN: SwiftUI/React/Compose keyframe editor

https://inertiagraphics.com
1•hpen•9m ago•0 comments

Tyler Cowen: You'll Learn to Love AI Writing

https://www.thefp.com/p/tyler-cowen-youll-learn-to-love-ai-writing
1•gwintrob•9m ago•0 comments

Modernizing 10-Year-Old PHP Applications Without Breaking the Monolith

https://www.gridphp.com/blog/modernizing-10-year-old-php-applications-without-breaking-the-monolith/
1•gridphp•9m ago•0 comments

From unchecked AI spend to complete control: How Rippling built AI Spend Console

https://www.rippling.com/blog/introducing-ai-spend-console
1•jaredwiener•10m ago•0 comments

Show HN: Samudra Manthana, an asymmetric strategy board game in the browser

https://mighty840.itch.io/samudra-manthan
1•sharang33•15m ago•0 comments

In-terminal browser: do Kitty animation deltas beat full-frame updates?

https://www.reddit.com/r/browsers/comments/1vidk09/interminal_browser_do_kitty_animation_deltas_b...
1•syumei•16m ago•0 comments

Metabase – Please Upgrade Now

https://www.metabase.com/blog/security-update
2•karakanb•17m ago•0 comments

A shell exclamation mark is not for yelling. Be lazy

https://refp.se/articles/your-shell-and-the-lazy-exclamation-mark
2•birdculture•20m ago•0 comments

Will Your First Home Robot Have Legs or Wheels?

https://itcanthink.substack.com/p/will-your-first-home-robot-have-legs
1•hasheddan•21m ago•0 comments

I'm excited for Intel after testing the XPS 13

https://www.jeffgeerling.com/blog/2026/excited-for-intel-efficiency/
2•isagues•21m ago•0 comments

Show HN: Arena for Speech-to-Speech Models

https://voiceduel.com/
2•armaanp23•25m ago•0 comments

Email Personalization That Gets Read

https://www.maxprog.com/site/blog/post.php?id=2984&topic=Email-Personalization-That-Gets-Read
1•maxprog•25m ago•0 comments

Astronomers Find a New Object from the Early Universe Using Webb Data

https://www.universetoday.com/articles/astronomers-find-a-new-object-from-the-early-universe-usin...
2•rbanffy•26m ago•0 comments

Show HN: Podiom – Persistent project context, goals and scheduling for AI agents

https://github.com/Podiom/Podiom
1•Maphielbso•28m ago•0 comments

Collapse OS - Bootstrap post-collapse technology

https://collapseos.org/
1•sedatk•28m ago•0 comments

Opus5/low can do CryptoNote base58 decoding toolless, in working memory alone

https://bsky.app/profile/jleclanche.bsky.social/post/3msji47npvk2y
10•scrollaway•30m ago•2 comments

Chip design from the bottom up – Reiner Pope [video]

https://www.youtube.com/watch?v=oIk3R-sMX5o
2•__rito__•32m ago•0 comments

Water system controllers don't belong on the internet, says ex-NSA chief

https://www.theregister.com/security/2026/08/07/water-system-controllers-dont-belong-on-the-inter...
17•Bender•33m ago•2 comments

Cop who used police system to snoop for info on crook pals sentenced

https://www.theregister.com/legal/2026/08/07/cop-who-used-police-system-to-snoop-for-info-on-croo...
1•Bender•34m ago•0 comments

Flesh-eating screwworms feast on humans in Mexico; human cases top

https://arstechnica.com/health/2026/08/flesh-eating-screwworms-feast-on-humans-in-mexico-human-ca...
1•Bender•35m ago•0 comments

Show HN: From raw Point Cloud dataset to regular Grid index

https://huggingface.co/spaces/adec314/point-to-grid
1•adec314•39m ago•0 comments

Investors Clamor to Bet on AI Whiz Kid Fund After Situational Awareness Turmoil

https://www.bloomberg.com/news/articles/2026-08-07/silicon-valley-rallies-around-ai-whiz-kid-afte...
2•petethomas•40m ago•0 comments

Comparable information rates across the human communicative niche

https://pmc.ncbi.nlm.nih.gov/articles/PMC6984970/
1•gregsadetsky•43m ago•0 comments

Predictable Updates About Consciousness

https://minihf.com/posts/2024-08-08-predictable-updates-about-consciousness/
2•zetalyrae•47m ago•1 comments

Open source, locally translate any video to English

https://github.com/devrim/mid-voice
1•aesopsfable•50m ago•1 comments

iOS 26 Gets First Jailbreak Thanks to Dopamine

https://www.macrumors.com/2026/08/07/ios-26-dopamine-jailbreak/
3•tosh•51m ago•0 comments

Show HN: Hermes Missions – crash-safe durable execution for AI agents, no deps

1•devcriollo•53m ago•1 comments