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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•9mo 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!

Software Is User Action

https://software-action.hyperclay.com/
1•YounesDz•5m ago•0 comments

Separation of Concerns: You're Cutting Along the Wrong Line

https://inferal.com/blog/separation-of-concerns/
1•donutshop•12m ago•0 comments

The Farm That 600M IP Addresses Called Home

https://www.connected.app/library/the-farm-that-600-million-ip-addresses-called-home-1u5uogt
2•kirkouimet•13m ago•0 comments

Bay Area tech CEO given $3.5M severance payment as company lays off hundreds

https://www.sfgate.com/tech/article/workday-severance-layoffs-21346064.php
3•starkparker•13m ago•1 comments

Terence Tao: Machine Assistance and the Future of Research Mathematics [video]

https://www.youtube.com/watch?v=SuTxpKggY30
1•20repsquat•19m ago•1 comments

Show HN: Motivé – AI-generated cover letters tailored to job descriptions

https://motive8.ca
1•joelkapuku•21m ago•0 comments

The Royal Game of Ur [video]

https://www.youtube.com/watch?v=WZskjLq040I
1•theGeatZhopa•22m ago•0 comments

Show HN: Self-updating engineering blogs repo with GitHub Actions

https://github.com/mayankchauhan971/engineering-blogs
2•break_prod•27m ago•0 comments

Gokin update: major reliability improvements in the Go-native AI coding CLI

https://github.com/ginkida/gokin
1•ginkida•30m ago•0 comments

1.3M Epstein documents index on Postgres

https://old.reddit.com/r/SideProject/comments/1r13lxp/i_spent_6_days_and_3k_processing_13m_docume...
2•jerdman76•30m ago•0 comments

Show HN: Crank – The SSH Terminal Manager for Engineers Who Refuse to Close Tabs

https://github.com/nexivibe/crank
2•mathgladiator•34m ago•0 comments

Warcraft III Peon Voice Notifications for Claude Code

https://github.com/tonyyont/peon-ping
3•doppp•34m ago•0 comments

Show HN:ProductFront-Streamlined product discovery platform for maximum exposure

https://www.productfront.tech
1•kdev28•34m ago•0 comments

D Programming Language

https://dlang.org/
3•arcadia_leak•35m ago•1 comments

Show HN: Nuvix – An Open Source Back End Where Every Table Is Secure by Default

https://github.com/Nuvix-Tech/nuvix
1•ravikantsaini•36m ago•0 comments

How to Use Google Trends and SEO Tools to Brainstorm Blog Topics

https://kitful.ai/blog/how-to-use-google-trends-and-seo-tools-to-brainstorm-blog-topics
1•eashish93•38m ago•0 comments

Show HN: SpearTrades – Crypto risk, health and portfolio analytics

https://speartrades.com
1•sumitarya•43m ago•0 comments

Programming Aphorisms

https://matklad.github.io/2026/02/11/programming-aphorisms.html
2•signa11•43m ago•0 comments

The "Are You Sure?" Problem: Why Your AI Keeps Changing Its Mind

https://www.randalolson.com/2026/02/07/the-are-you-sure-problem-why-your-ai-keeps-changing-its-mind/
1•EvgeniyZh•44m ago•0 comments

Show HN: Cross-platform audio notifications for Claude Code

https://github.com/ChanMeng666/claude-code-audio-hooks
1•chanmeng666•44m ago•0 comments

Show HN: Emergent Field Explorer – interactive moiré with easy shareable links

https://mcbgl.vercel.app/?p=eyJ2ZXJzaW9uIjoyLCJzZXR0aW5ncyI6eyJsYXllcjEiOnsic3BhY2luZyI6MzksInNpe...
1•mcdowell_atx•45m ago•0 comments

My wife calls me, panicked

https://twitter.com/ModernDad/status/2021675945581486309
9•latchkey•47m ago•3 comments

Ask HN: How do you deal with long Covid?

3•manx•49m ago•2 comments

Outcome Engineering – The o16g Manifesto. It was never about the code

https://o16g.com/
2•donutshop•1h ago•1 comments

Add paths filter and concurrency to coverage workflow docs

1•nishiohiroshi•1h ago•0 comments

What's it like to go through the FedRAMP process?

https://cyberscoop.com/radio/greg-talks-with-matt-kapko-about-a-whirlwind-week-around-clops-targe...
1•felineflock•1h ago•0 comments

Deep Dive into New York City Air Traffic Control (2019)

https://josephgunnwriting.wordpress.com/2019/06/13/deep-dive-into-new-york-city-air-traffic-contr...
1•asleepawake•1h ago•0 comments

OpenClaw but Running on My iPhone

2•readsdiggdaily•1h ago•0 comments

Show HN: NixOS flake for hardened OpenClaw deployment

https://github.com/Scout-DJ/openclaw-nix
1•scout_agent•1h ago•0 comments

Lex Fridman x Peter Steinberger Podcast

https://www.youtube.com/watch?v=YFjfBk8HI5o
2•jaytyagi•1h ago•0 comments