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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!

SurrealDB Agent Memory: 77% on Beam, Alternative to Mem0 / Honcho / Cognee

https://surrealdb.com/agent-memory
1•tobiemh•33s ago•0 comments

If you believe buying conventional supermarket produce will be safe, think again

https://hatchardreport.com/forewarned-is-forearmed-if-you-believe-buying-conventional-supermarket...
1•speckx•1m ago•0 comments

EVs saved $20B globally in avoided oil costs between March and August 2026

https://electrek.co/2026/10/13/electric-cars-saved-20b-in-oil-and-the-us-is-falling-behind/
1•toomuchtodo•2m ago•1 comments

Why claims that Ukraine drone attack halted Russian bot traffic don't hold up

https://www.cbc.ca/news/world/yankex-russia-ukraine-bots-9.7379086
1•robtherobber•2m ago•0 comments

Did Ente Locker copy my code without attribution?

https://fairscan.org/blog/did-ente-locker-copy-my-code-without-attribution/
1•birdculture•3m ago•0 comments

My Interop 2027 Rankings

https://meyerweb.com/eric/thoughts/2026/10/14/my-interop-2027-rankings/
1•jjgreen•5m ago•0 comments

How the Military Will Hack the Election

https://www.kenklippenstein.com/p/how-the-military-will-hack-the-election
15•pavel_lishin•5m ago•0 comments

Kidpix.app

https://kidpix.app
1•rgbrgb•8m ago•0 comments

Tiny E-Paper Display Delivers 30 FPS of Game Boy Fun

https://hackaday.com/2026/10/14/tiny-e-paper-display-delivers-30-fps-of-game-boy-fun/
1•speckx•12m ago•1 comments

Fire at Starlink site in Bulgaria after suspected sabotage in Poland

https://dpa-international.com/politics/urn:newsml:dpa.com:20090101:261014-930-839530/
1•ilamont•12m ago•0 comments

"I'm Not Going to Have Blood on My Hands"

https://www.cjr.org/the-interview/nicole-noren-espn-producer-quit-protest-sports-betting-gambling...
2•danso•12m ago•0 comments

Researchers cig-nal their faith in AI by taking up smoking

https://www.theregister.com/ai-and-ml/2026/10/14/researchers-cig-nal-their-faith-in-ai-by-taking-...
1•galaxyLogic•13m ago•0 comments

The Confusion Matrix Is the Product

https://the-confusion-matrix-is-the-product.surge.sh/
1•private4e584d•14m ago•0 comments

The Mountain Races

https://www.themountainraces.cc
1•Gshaheen•15m ago•0 comments

Banks are now trying to offload the AI data center debt they just underwrote

https://startupfortune.com/banks-are-now-trying-to-offload-the-ai-data-center-debt-they-just-unde...
13•smartmic•16m ago•1 comments

Ultramarine 1 Flash: Frontier Model 100X Cheaper

https://www.paperinstruments.com/ultramarine
1•dzonga•17m ago•1 comments

2026 state of the climate report: challenges and opportunities

https://academic.oup.com/bioscience/advance-article/doi/10.1093/biosci/biag125/8836482
1•littlexsparkee•17m ago•0 comments

Ask HN: How to Become a Data Broker?

1•rishikeshs•18m ago•2 comments

Elevation Lab: An Apology

https://www.elevationlab.com/blogs/news/an-apology?srsltid=AU7gw4XjUESQwZQmle2oYakt2Y477Kh5ICt5tg...
2•samgutentag•19m ago•0 comments

Show HN: Building a new way to work on changes concurrently

https://nerudo.dev
1•kcirtapfrmspc•19m ago•0 comments

Berkshire Hathaway adds $330M to stake in Bending Spoons

https://www.ft.com/content/3f821be4-f137-4cc9-b0b0-b2014f2607c2
1•aanet•19m ago•2 comments

How long will humans be needed for translation?

https://www.bbc.com/news/articles/c1wxdjx27ypo
1•saikatsg•20m ago•1 comments

Show HN: Zero-shot classifier on scale-to-zero GPUs, one forward pass per call

https://console.runpod.io/hub/listing/lateos-ai/reflex
1•leochong•23m ago•0 comments

KDE: The Documentary – The Story of Free Software Underdogs

https://www.youtube.com/watch?v=1Vyzla9mx4g
3•ognarb•23m ago•0 comments

Show HN: Petal, open-source CoScreen/ScreenHero finally free

https://petal.live/
5•thedracle•26m ago•1 comments

LibreOffice Rescues Microsoft Users with Stranded Pub Files

https://blog.documentfoundation.org/blog/2026/10/14/libreoffice-come-to-the-rescue-of-microsoft-p...
2•brideoflinux•27m ago•0 comments

Virtual Oxide Labs: Emulating a Full Oxide Rack

https://oxide.computer/blog/voxel-labs
8•tosh•28m ago•0 comments

Container ship sinks in Strait of Hormuz as Iran steps up attacks

https://www.cnbc.com/2026/10/14/container-ship-sinks-strait-hormuz-as-iran-war-attacks.html
11•MilnerRoute•29m ago•0 comments

Through the Visual Language of AI

https://blog.criti.ca/posts/through-the-visual-language-of-ai
2•microsoftedging•29m ago•0 comments

A Turing Test for Physical Engineering

https://www.spectrallabs.ai/research/cswp-turing-test
2•kmavm•30m ago•0 comments