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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!

The purpose of a system is what it does

https://en.wikipedia.org/wiki/The_purpose_of_a_system_is_what_it_does
1•the-mitr•3m ago•0 comments

Smart reports, surveys, and pooled group budgets for Claude Enterprise

https://claude.com/resources/articles/smart-reports-surveys-pooled-budgets
1•gnabgib•5m ago•0 comments

Information Should Be Free

https://www.raphaelsalaja.com/library/information-should-be-free
1•meetpateltech•5m ago•0 comments

Anthropic launched tools to show companies what their AI spending is buying

https://techcrunch.com/2026/10/28/anthropic-just-launched-tools-to-show-companies-what-their-ai-s...
3•gmays•10m ago•1 comments

Show HN: Droneship – sandbox for your coding agents

https://droneship.run/
1•sharathr•16m ago•0 comments

Select text in Claude Code instead of prompting

https://github.com/GregoryBolshakov/peekme
1•gubidonius•16m ago•0 comments

VibeVoted – The best software products as ranked by 10 leading AI models

1•stanislavb•21m ago•1 comments

A bigger paycheck tends to come with personality changes

https://www.psypost.org/a-bigger-paycheck-tends-to-come-with-personality-changes-according-to-a-l...
3•rohanm93•25m ago•0 comments

Building the NBC News Big Board

https://ejfox.com/projects/nbc-big-board
2•whalesalad•27m ago•0 comments

SpiritFone: A program to listen to Spirits

https://github.com/pkshadygrove/SpiritFone/releases/tag/v1.0.2
1•pkshadygrove•30m ago•0 comments

American military unit which collects lines of thought has this technology

3•imheretolearn•33m ago•0 comments

Show HN: Handball Logos – Collection of logos of handball clubs

https://handball-logos.com/
1•yaman071•34m ago•0 comments

"Start with a Monolith" Was Good Advice. AI Is Changing That

https://medium.com/scalar-engineering/architecture-in-the-ai-era-part-1-summary-start-with-a-mono...
2•josh-scalar•36m ago•1 comments

GIMP 3.2.8 with Many Refinements, Numerous Security Fixes Due to AI Reports

https://www.phoronix.com/news/GIMP-3.2.8-Released
1•qtqtqt•37m ago•0 comments

Bridge32: Run 32-bit iOS apps on Mac natively

https://forums.swift.org/t/bridge32-run-32-bit-ios-apps-on-mac-catalyst-through-host-frameworks/9...
1•colemancda•37m ago•1 comments

Ask HN: Are you building your own personal webapps?

1•viejaquerida•42m ago•0 comments

Show HN: Brim – Use the iPhone Duo's whole outer display in Safari

https://brim-app-rho.vercel.app/
1•yong076•44m ago•0 comments

Show HN: A live-built agent newsroom for tracking midterms today

https://midterms2026.noriagentic.com/
3•theahura•46m ago•0 comments

A private AI box in one apply

https://conn3x.org/blog/private-ai-box
2•MrGizmo•47m ago•1 comments

Show HN: Sigmajp – Integrated Japanese Reader

https://sigmajp.works/
1•loosetypewriter•51m ago•0 comments

Audrey: The Early 2000's Failed Internet Appliance [video]

https://www.youtube.com/watch?v=TyXtBrC1Fv0
3•gregsadetsky•54m ago•1 comments

Jelly Sheet

https://mrdoob.github.io/codevember-2026/01/
2•memalign•56m ago•0 comments

DeepSeek Harness' new Creator Mode creates plugins from prompts

https://mashable.com/tech/deepseek-creator-mode-plugins
1•esafak•56m ago•0 comments

Show HN: TickerTown, a pixel-art stock market simulator

https://tickertown.ai
1•williswee•56m ago•0 comments

Democrats win control of the House of Representatives

https://www.nbcnews.com/politics/2026-election/democrats-house-control-midterm-election-wins-trum...
53•geox•1h ago•23 comments

Show HN: Rendering 3D Models in the Terminal

https://muratbayraktar.dev/blog/3d-rendering-in-the-terminal/
2•bob65536•1h ago•0 comments

Study solved a 150-year-old mystery into the identity of the extinct giant crane

https://www.bournemouth.ac.uk/news/2026-10-28/study-has-solved-150-year-old-mystery-identity-exti...
1•gmays•1h ago•0 comments

Show HN: Railyard – Git-push deploys and OSS templates on your own VPS

https://railyard.run/
1•RailyardRun•1h ago•0 comments

SemiconductorX – The Chip Supply Chain, from Quartz to Module

https://semiconductorx.com/
4•peter_d_sherman•1h ago•0 comments

Distinct cellular and genetic differences in colorectal cancer in young patients

https://www.dana-farber.org/newsroom/news-releases/2026/study-reveals-distinct-cellular-and-genet...
20•gmays•1h ago•0 comments