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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!

Show HN: Eski – an in-memory store in Odin, measured against Redis on one core

https://github.com/vighnesh-bheed/eski
1•vighneshbheed•42s ago•0 comments

Cisco to rewrite 98% of its legacy code using AI

https://www.tomshardware.com/tech-industry/big-tech/cisco-gives-27-year-old-engineer-unlimited-ai...
1•redbell•3m ago•0 comments

Now indexed by Vuink,500K+ words. 742 turns.135 Knowledge domains – UKA-135

https://zenodo.org/records/23686384
1•pinuslongaeva•4m ago•0 comments

Ask HN: Which social media platform is useful?

2•dhruonweb•8m ago•1 comments

The Secret Leak Test: a prompt injection filter vs. attacks

https://hodor.gatebolt.com/blog/secret-leak-test
1•GateBolt•11m ago•0 comments

How Sustainable Is a Solar Powered Website? (2020)

https://solar.lowtechmagazine.com/2020/01/how-sustainable-is-a-solar-powered-website/
1•zenincognito•12m ago•0 comments

Brewlet

https://github.com/microsoft/brewlet
1•rwiller•14m ago•0 comments

Decomp of David Horner's Drain Storm (1997)

https://github.com/pancirno/DrainStorm
1•networked•19m ago•0 comments

Jolyboy

1•smnanasou•24m ago•1 comments

Chomsky and the Two Cultures of Statistical Learning

https://www.norvig.com/chomsky.html
2•andsoitis•26m ago•1 comments

Lessons from Building a Deep Research System

https://www.tinyfish.ai/blog/lessons-from-building-a-deep-research-system
1•ankitg12•29m ago•0 comments

UART in Verilog with Fractional Clock Dividers

https://nand2mario.github.io/posts/2025/uart_with_fractional_clock_divider/
1•ankitg12•30m ago•0 comments

Show HN: Phone Link for macOS – Use Your Android Phone on macOS

https://github.com/nnnlog/phone-link
1•nnnlog•32m ago•0 comments

Don't just scale content. Scale creativity

https://bigbrandssecrets.substack.com/p/dont-just-scale-content-scale-creativity
1•matiasmobilia•32m ago•0 comments

Ask HN: What are you working on? (November 2026)

3•tha_infra_guy•36m ago•3 comments

Living Maps: Bay Area tech since 1960s

https://tomorrowasusual.com/living-maps/bay-area-tech/
4•tudell•36m ago•3 comments

Stop running everything through LLMs: How I fixed my research agent

https://www.tinyfish.ai/blog/inside-tinyresearch
2•manavm12•39m ago•0 comments

App Store 2026 in numbers: AI, pricing, abandoned apps

https://obelisk.club/research/app-store-2026
9•Peter216•45m ago•3 comments

Does the Neuroslop Enrichment Real?

https://github.com/notlibrary/USSR
2•notlibrary•45m ago•0 comments

Multiplayer tanks that demolish real buildings from OpenStreetMap

https://worldstrike.fun/
8•n4ze3m•49m ago•1 comments

Herdr vs. T3 Code vs. Amp: Software Factory Test

https://medium.com/tech-stackups/herdr-vs-t3-code-vs-amp-software-factory-test-59432684878c
2•ritzaco•49m ago•1 comments

Global stocks tumble as AI panic grips markets after Democrats' midterm success

https://www.theguardian.com/business/live/2026/nov/06/global-stocks-tumble-ai-panic-markets-democ...
5•drayfield•51m ago•0 comments

Nucleus: Have Your Best Baby

https://mynucleus.com/
2•porridgeraisin•53m ago•0 comments

AI Agent Has Amnesia. Mine Keeps Receipts

https://prod.codes/blog/your-ai-agent-has-amnesia-mine-keeps-receipts/
2•alex09x•53m ago•0 comments

Kugelblitz – Mac-Native Google Earth Alternative

https://apps.metaebene.me/en/kugelblitz
22•luoc•57m ago•1 comments

Astronauts arrive at International Space Station just 8 hours after launching

https://apnews.com/article/spacex-nasa-astronauts-crew-13-d885ec0dcb9fab8bbf8977103118caa0
7•gmays•58m ago•1 comments

Show HN: Pixel Buddy, a pixel pet for Claude Code that grows from your work

https://github.com/SimakovIgor/pixel-buddy
2•igorsimakov•59m ago•0 comments

Sourcehut disabled registration bypass – CVE-2026-121728

https://blog.arusekk.pl/posts/srht-disabled-registration-bypass/
3•birdculture•1h ago•0 comments

Coffee, with Coordinates

https://www.fao.org/newsroom/story/coffee-with-coordinates/en
2•bryanrasmussen•1h ago•0 comments

Blender's UI and Runtime: Much Faster Than GPUI

https://github.com/ppmpreetham/BUI
39•ppmpreetham•1h ago•10 comments