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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!

In Nigeria, Solar Panels Are the New Wedding Gift

https://www.bloomberg.com/news/features/2026-10-23/nigeria-embraces-solar-energy-as-panels-become...
2•toomuchtodo•2m ago•1 comments

Stride: Systematic trend-following system in Python 3.12

https://github.com/JAbarca74/stride
1•JAbarca74•2m ago•0 comments

Show HN: Chord Finance – macOS keyboard driven personal accounting & portfolio

https://chordfi.aquaflamingolabs.com
1•devrob•3m ago•0 comments

The Aardappel Programming Language – Concurrent Tree Space Transformation

https://strlen.com/aardappel-language/
1•andsoitis•7m ago•0 comments

A venture capital game in which your LPs would like their money back

https://vc.tilo.coffee/
2•xemmerling•7m ago•1 comments

Restructor

https://strlen.com/restructor/
1•andsoitis•8m ago•0 comments

The Rules Cannot Change Only for Young Mathematicians

https://proofsandprompts.com/2026/10/22/the-rules-cannot-change-only-for-young-mathematicians-ai-...
1•reasonableklout•8m ago•0 comments

Ask HN: What Are You Working on (Oct 2026)

1•njx•9m ago•0 comments

AROS.games - Retro OS for Gamers

https://aros.games/
1•doener•9m ago•1 comments

GTA 2 Multiplayer in the Browser

https://two-mp.com/
2•crosschainer•9m ago•0 comments

Optical Fiber Spot Prices Surge Severalfold in 2026

https://www.trendforce.com/presscenter/news/20261019-13275.html
1•JumpCrisscross•11m ago•0 comments

Local Inference on a Raspberry Pi

https://keepitwiel.github.io/2026/10/24/local-inference-on-a-raspberry-pi.html
1•keepitwiel•11m ago•0 comments

Show HN: Personal site with live visitor "orbs" and E2E encrypted contact

https://nick.earth/
1•porkins•11m ago•0 comments

Will AI stop us getting ripped off?

https://www.optimallyirrational.com/p/will-ai-stop-us-getting-ripped-off
1•paulpauper•12m ago•0 comments

ArXiv imposes rate limit on paper submissions to stem the AI slop tide

https://www.theregister.com/ai-and-ml/2026/10/02/arxiv-imposes-rate-limit-on-paper-submissions-to...
1•paulpauper•14m ago•0 comments

The Fed Faces Its Most Confusing Economy Yet

https://www.bloomberg.com/news/articles/2026-10-23/federal-reserve-interest-rate-decision-faces-c...
1•toomuchtodo•14m ago•1 comments

Show HN: AeonCut – Open-source silence cutter for DaVinci Resolve (Rust/egui)

https://github.com/aethelisdev/aeoncut
1•aethelis•14m ago•0 comments

Why are Americans obese? Junk food prices shouldn't get all the blame

https://www.washingtonpost.com/food/2026/05/01/american-obesity-junk-food-prices-vegetables-study/
2•paulpauper•16m ago•1 comments

Former mayor appeals car masturbation conviction for 2nd time to Supreme Court

https://nltimes.nl/2026/10/24/former-groningen-mayor-appeals-car-masturbation-conviction-2nd-time...
1•ghost-pooper•16m ago•0 comments

Ukraine says Starlink is back to normal after limits hobbled its drones

https://www.nbcnews.com/world/ukraine/ukraine-says-starlink-back-normal-week-limits-rcna605368
3•MilnerRoute•16m ago•0 comments

Ben Sliney

https://en.wikipedia.org/wiki/Ben_Sliney
1•wmchen•21m ago•0 comments

Show HN: Codex Reset Tray, a macOS menu-bar app for Codex usage

https://github.com/sklivvz/codex-reset-tray
1•sklivvz1971•22m ago•0 comments

AggPro – one order book merged from 25 crypto exchanges now with gold and S&P500

https://aggpro.xyz/
1•djsurik•23m ago•0 comments

Autodesk internal discussion about Softimage [video]

https://www.youtube.com/watch?v=kR7UWImpG54
1•joebig•23m ago•1 comments

The Style Is Father of the Man

https://harpers.org/archive/2026/11/benjamin-kunkel-reviews-cormac-mccarthy-legacy-revisted/
1•lermontov•25m ago•0 comments

No Signs of AI Payoff Outside the Tech Sector

https://www.apollo.com/wealth/insights-news/insights/daily-spark/no-signs-of-ai-payoff-outside-th...
54•the-mitr•26m ago•31 comments

Easylist Reaches 300k Commits

https://twitter.com/fanboynz/status/2114079626016465293
1•mp3geek•26m ago•0 comments

Mini-Swe-Agent

https://github.com/swe-agent/mini-swe-agent
2•Kinrany•27m ago•1 comments

Hara Hachi Bun Me

https://en.wikipedia.org/wiki/Hara_hachi_bun_me
1•thunderbong•27m ago•0 comments

Who Watches the Watchmen?

https://nihilunbounded.substack.com/p/who-watches-the-watchmen
2•panic•29m ago•1 comments