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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•10mo 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!

Show HN: A CPU info utility for DOS, Linux, etc.

https://github.com/timw4mail/rustid
1•timw4mail•35s ago•0 comments

I replaced Notion with a Git repo and Obsidian

https://twitter.com/EcstaticPirate/status/2029589180125163825
1•ecstaticpirate•1m ago•0 comments

I had a stroke in Nepal and this is what I ate while I recovered

https://pickyglutton.com/2026/02/16/stroke-in-nepal/
1•dash2•3m ago•0 comments

HN: To make it easier to share skills with my friends, I created a tool

https://github.com/canishowtime/ai-station-navigator
1•mazilin•4m ago•0 comments

Love in the Time of A.I. Companions

https://www.newyorker.com/magazine/2026/03/16/love-in-the-time-of-ai-companions
1•bookofjoe•5m ago•1 comments

Online age-verification tools for child safety are surveilling adults

https://www.cnbc.com/2026/03/08/social-media-child-safety-internet-ai-surveillance.html
2•bilsbie•5m ago•0 comments

Traffic from Russia to Cloudflare is 60% down from last year

https://radar.cloudflare.com/traffic/ru?dateRange=52w
1•secondary_op•6m ago•0 comments

HN: 354M LLM with better epistemic calibration than GPT-2 Medium on OOD data

https://truthagi.ai
1•felipemayamuniz•6m ago•1 comments

Madblog: Turn a Markdown folder into a federated blog

https://blog.fabiomanganiello.com/article/Madblog-federated-blogging-from-markdown
1•blacklight•8m ago•0 comments

My Rust dev setup in 2026

https://bitfieldconsulting.com/posts/rust-dev-tools
1•ingve•8m ago•0 comments

Mercury – Transforming Drone

https://github.com/L42ARO/Mercury-Transforming-Drone
1•OJFord•9m ago•0 comments

The Agent Skills Gold Rush Has a Malware Problem

https://www.theundercurrent.dev/p/the-agent-skills-gold-rush-has-a
2•robutsume•10m ago•0 comments

SoWScanner: AI extraction and deterministic scoring for SOW risk analysis

https://sowscanner.com
2•noisysilence•10m ago•1 comments

A Primer on Air-Campaigns

https://www.theatlantic.com/national-security/2026/03/air-campaign-military-primer/686294/
1•throw0101d•13m ago•1 comments

Show HN: Trace – Lightweight install attribution and deep links for mobile apps

https://traceclick.io
1•mcansh•13m ago•1 comments

Single command deployment of a Gitops Talos Kubernetes cluster on Proxmox

https://github.com/okwilkins/h8s
1•okwilkins•14m ago•2 comments

Show HN: Opsy – Agent-first infrastructure management

https://github.com/opsyhq/opsy
1•d36ugger•14m ago•0 comments

We crawled 1M domains to map AI agent permissions – 90% have no policy

https://www.maango.io/report
1•mehula•15m ago•3 comments

Five core concepts that explain how AI coding agents work

https://blog.codeminer42.com/five-things-your-coding-ai-agent-wishes-you-understood/
2•edigleysson•16m ago•0 comments

800th blog post: Write that Blog

http://muratbuffalo.blogspot.com/2026/03/800th-blog-post-write-that-blog.html
1•cyndunlop•19m ago•0 comments

What Is Contribution Margin? A Complete Guide for Product Sellers

https://margincaptain.com/
1•Sean_hh_builds•19m ago•1 comments

Ask HN: Can personal luck be studied statistically?

1•laetus-app•20m ago•0 comments

Palantir's lethal AI weaponry deployed to find chairs for US Government staff

https://www.theregister.com/2026/03/10/palantir_usda_seating_software/
4•voxadam•21m ago•0 comments

Show HN: Chatbot Can Now Get Tired, Hold Silence, and Navigate Paradoxes

https://mycelialmirror.substack.com/p/your-chatbot-can-now-get-tired-hold
1•oopismcgoopis•21m ago•0 comments

Show HN: Dspx – Native C++ DSP Library for Node.js Built for AWS Lambda (1.3MB)

1•a-kgeorge•22m ago•0 comments

Ask HN: What are some examples of your favorite product documentation?

2•ZeroCool2u•23m ago•1 comments

AI changed the build equation. It didn't change the maintenance equation

https://runframe.io/blog/incident-management-build-or-buy
2•advancespace•25m ago•1 comments

Stop talking "human" to your agents to get consistent quality results

https://at0mic-thoughts.github.io/at0mic-thoughts/structured-ai-agent-execution/
2•iguanasterix•27m ago•1 comments

Show HN:A Daily Deathbed Regret Reminder – To Help You Rethink Your Path

https://dailyregrets.com
1•rashi1337•27m ago•1 comments

Show HN: Make it Count – a daily email for fight procrastination

https://www.laurieherault.com/make-it-count
2•laurieherault•29m ago•1 comments