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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!

LLMs are expert movie script writers

https://butternut.click/blog/ais-are-expert-script-writers
2•Jacques2Marais•9m ago•0 comments

A Web Revival: the Internet didn't die, you're just not on it

https://www.youtube.com/watch?v=tkUgOT22F5s
2•todsacerdoti•9m ago•0 comments

Microsoft Uses Plagiarized AI Slop Flowchart to Explain How Git Works

https://hackaday.com/2026/02/19/microsoft-uses-plagiarized-ai-slop-flowchart-to-explain-how-git-w...
4•lawgimenez•11m ago•0 comments

Hierarchies of Storage from Electrons to Bits

https://syncretica.substack.com/p/hierarchies-of-storage-from-electrons
2•7777777phil•11m ago•0 comments

TypeScript-Derived Languages

https://github.com/orta/awesome-typescript-derived-languages
2•tentacleuno•14m ago•0 comments

Minions – Stripe's Coding Agents Part 2

https://stripe.dev/blog/minions-stripes-one-shot-end-to-end-coding-agents-part-2
2•ludovicianul•16m ago•0 comments

New Library to build and deploy AI agents (the best I have seen in a long time)

https://github.com/teleonAI/teleon
2•karimbkh_•18m ago•0 comments

How to use Rain Sounds for sleeping?

https://rainsounds.xyz/how-to-use-rain-sounds-for-sleeping
1•mathnorth_com•18m ago•0 comments

Nexus State – Lightweight Atomic State Management for Modern Apps

https://jsdev.space/nexus-state-manager/
1•javatuts•19m ago•0 comments

Show HN: Our calendar is political, not mathematical – explore alternatives

https://calendar-architect.pages.dev
1•szemy2•20m ago•0 comments

Show HN: Fun Cricket 26 – 3 clicks to bowl, 3 to bat, 1000s of possibilities

https://cric26.fun
1•rockyj•21m ago•0 comments

Google Cloud APIs (gcloud CLI) seems to be down or broken

2•thej•21m ago•0 comments

Found a PSP Exploit but cant get to run a loader yet

1•kirito1337•22m ago•0 comments

Show HN: I made HappySRT to transcribe, translate, & summarize easily

https://www.happysrt.com/
1•Rizzist•23m ago•0 comments

Design Docs Considered Harmful

https://www.lucasfcosta.com/blog/design-docs
2•lucasfcosta•23m ago•0 comments

Show HN: TemplateFlow – Build AI workflows, not prompts

https://github.com/heyaohuo/TemplateFlow
1•yaohuo•24m ago•0 comments

Show HN: Searchable aggregator of 24M London council spending transactions

https://cspend.uk
2•ashfn•25m ago•1 comments

Why AI Models Fail at Iterative Reasoning and What Could Fix It

https://medium.com/@contact.n8n410/why-ai-models-fail-at-iterative-reasoning-51f8f9930625
1•solscan_dev•27m ago•0 comments

The Missing Sidebar in Cursor

https://morningcoffee.io/git-compare
1•shiroyasha•28m ago•0 comments

I built Google Bigtable in Go. Single file, zero dependencies

https://jitesh117.github.io/blog/implementing-google-bigtable-in-golang/
2•Jitesh117•28m ago•0 comments

Why Developers Keep Choosing Claude over Every Other AI

https://www.bhusalmanish.com.np/blog/posts/why-claude-wins-coding.html
1•okchildhood•29m ago•0 comments

Show HN: NostalgiApp – Native macOS launcher for 7k+ DOS games (eXoDOS)

1•mmsols•32m ago•0 comments

What the coming era of highly bespoke software might look like

https://twitter.com/karpathy/status/2024583544157458452
1•stared•33m ago•0 comments

Ask HN: How to measure how much data one can effectively process or understand?

6•mbuda•33m ago•1 comments

A Brief History of the Creator of C++: Bjarne Stroustrup (video)

https://www.youtube.com/watch?v=uDtvEsv730Y
1•michelangelo•35m ago•0 comments

I'm Sick of This AI Shit [video]

https://www.youtube.com/watch?v=7XGct4rbYfI
2•thm•37m ago•0 comments

Show HN: Legal RAG Bench

https://isaacus.com/blog/legal-rag-bench
2•beowa•38m ago•0 comments

Mrhbaan Syria Fedora Linux Now Available in Syria

https://fedoramagazine.org/fedora-syria/
1•_sofar•39m ago•0 comments

AWS Security Best Practices: Proven Strategies for 2026

https://www.kellton.com/kellton-tech-blog/aws-security-best-practices
1•Priyasinhakt•40m ago•0 comments

Personal Blog Should Have Comments

https://medv.io/blog/your-personal-blog-should-have-comments
1•medv•40m ago•0 comments