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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!

A lock proves the security of the room and not that the room is empty

https://github.com/thansz137/asiyah-protocol/blob/main/dibur/2026-02-20_dibur.md
1•thansz•1m ago•0 comments

AMD removes free Linux Vivado support

https://www.amd.com/en/products/software/adaptive-socs-and-fpgas/vivado/vivado-licensing-options....
2•yesod•3m ago•1 comments

NHS to close-source GitHub repos over AI, security concerns

https://www.theregister.com/software/2026/05/05/nhs-to-close-source-github-repos-over-ai-security...
2•raviisoccupied•4m ago•0 comments

New rule in Peru restricts authors with retractions from getting special bonuses

https://retractionwatch.com/2026/05/18/peru-rule-retractions-special-bonuses-decreto-supremo/
2•leephillips•6m ago•0 comments

Selling an HTML file for a few grand

https://www.nickstambaugh.dev/posts/selling-html-file-for-a-few-grand/
1•speckx•7m ago•0 comments

Show HN: Enhanced Copy – copy buttons that include the site's AI prompt

https://github.com/vaddisrinivas/enhanced-copy
1•srinivasvaddi•7m ago•0 comments

Generative AI's Existential Cringe

https://www.whatwelo.st/p/generative-ais-existential-cringe
1•hansmayer•7m ago•0 comments

Recreate famous water profiles using supermarket bottled water

https://www.waterdictionary.net
1•smugglerFlynn•7m ago•0 comments

NX compromised: supply chain attack via IDE extension, again

https://www.stepsecurity.io/blog/nx-console-vs-code-extension-compromised
1•Jehuty64•7m ago•0 comments

Show HN: drea – podcast app w/ free ad block

https://drea.fm/
1•hamza_q_•8m ago•0 comments

Shutterstock to pay $35M over hard-to-cancel subscriptions

https://www.ftc.gov/news-events/news/press-releases/2026/05/shutterstock-pay-35-million-settle-ft...
3•Lihh27•9m ago•0 comments

Who Reads My RSS Feed?

https://george.mand.is/2026/05/who-reads-my-rss-feed/
1•cdrnsf•10m ago•0 comments

Web Push notification suppression bypass (Chrome, Edge, Safari)

https://www.bountyy.fi/blog/sleeping-agent-web-push
2•chinesemango•11m ago•0 comments

We Need a More Serious Discussion About Suicide and AI Chatbots

https://www.techdirt.com/2026/05/18/we-need-a-more-serious-discussion-about-suicide-and-ai-chatbots/
1•cdrnsf•12m ago•0 comments

Purchased Digital Content may become unavailable due content provider licensing

https://twitter.com/WallStreetApes/status/2056231025731408181
2•bilsbie•13m ago•0 comments

Show HN: WldBoost: Burn Worldcoin for Better ChatGPT Prompts

https://wldboost.com
1•nner7210•14m ago•0 comments

How to Have Good Taste

https://www.commonreader.co.uk/p/how-to-have-good-taste
1•simplegeek•14m ago•0 comments

Lemon.li – extension of the charm.li database of car manuals (models thru 2025)

https://lemon-manuals.la/nfo.html
1•sans_souse•14m ago•0 comments

I created a 126K line Android app with AI – the workflow that worked for me

1•sminchev•15m ago•0 comments

The day CSS made me learn algebra again, and I liked it

https://schalkneethling.com/posts/the-day-css-made-me-learn-algebra-and-i-liked-it/
1•speckx•16m ago•0 comments

How to Start a Career When AI Is Doing Your Entry-Level Job

https://every.to/working-overtime/how-to-start-a-career-when-ai-is-doing-your-entry-level-job
1•momentmaker•19m ago•0 comments

Ben Forta - Does Vibe Coding Change My Answer?

https://forta.com/blog/does-vibe-coding-change-my-answer
1•rmason•19m ago•0 comments

How to build an AI helper for your team with Cowork

https://www.theaithinker.com/p/how-to-build-an-ai-helper-for-your
1•adamfaik•19m ago•0 comments

Stack Overflow but for AI Agents

https://app.coauthor.skarp.app
1•ozzynxe•21m ago•1 comments

App to Record phone call on Android 11-16, without root, FOSS, privacy friendly

https://github.com/kitsumed/ShizuCallRecorder
1•kitsumed•24m ago•0 comments

Was my $48K GPU server worth it?

https://rosmine.ai/2026/05/13/was-my-48k-gpu-worth-it/
1•apwheele•26m ago•0 comments

Rankly's Agentic Commerce Protocol Tracker

https://www.tryrankly.com/protocol-tracker
1•rankly_admin•28m ago•1 comments

Grafana says stolen GitHub token allowed attackers to download its codebase

https://www.bleepingcomputer.com/news/security/grafana-says-stolen-github-token-let-hackers-steal...
3•p_stuart82•29m ago•1 comments

The FBI Wants to Buy Nationwide Access to License Plate Readers

https://www.404media.co/the-fbi-wants-to-buy-nationwide-access-to-license-plate-readers/
6•cdrnsf•30m ago•0 comments

Hyperpolyglot Lisp: Common Lisp, Racket, Clojure, Emacs Lisp

https://hyperpolyglot.org/lisp
9•veqq•31m ago•0 comments