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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!

Securing AI Model Weights

https://www.rand.org/pubs/research_reports/RRA2849-1.html
1•fi-le•41s ago•0 comments

The information space around military AI is being weaponized against us

https://weaponizedspaces.substack.com/p/the-information-space-around-military
1•rbanffy•3m ago•0 comments

Show HN: ContractPulse – Free intelligence on federal government contracts

https://contractpulse.io
1•signalstackhq•4m ago•0 comments

Sam Altman AMA on DoD Collaboration

https://twitter.com/sama/status/2027900042720498089
1•Palmik•4m ago•0 comments

"All Lawful Use": More Than You Wanted to Know

https://www.astralcodexten.com/p/all-lawful-use-much-more-than-you
1•pchristensen•7m ago•0 comments

Show HN: Agentic Gatekeeper – Auto-patch your code to enforce Markdown rules

https://github.com/revanthpobala/agentic-gatekeeper
1•revanth1108•8m ago•0 comments

Show HN: Deploybase – Compare GPU and LLM pricing across all major providers

https://deploybase.ai
1•grasper_•9m ago•0 comments

TPM-Sniffing LUKS Keys on an Embedded Linux Device [CVE-2026-0714]

https://www.cyloq.se/en/research/cve-2026-0714-tpm-sniffing-luks-keys-on-an-embedded-device
1•Tiberium•9m ago•1 comments

Palantir Sues Swiss Magazine for Accurate Report

https://www.techdirt.com/2026/02/27/palantir-sues-swiss-magazine-for-accurately-reporting-that-th...
3•doener•11m ago•0 comments

3D dashboard to monitor and control your AI coding agents in real-time

https://github.com/coding-by-feng/ai-agent-session-center
1•kasonzhan•14m ago•0 comments

$10M factory in 600sqft room

https://www.youtube.com/watch?v=hqGFcwyXYI0
1•humbfool2•16m ago•0 comments

The Zero-Server Code Intelligence Engine

https://github.com/abhigyanpatwari/GitNexus
1•mercat•20m ago•0 comments

Google quantum-proofs HTTPS by squeezing 15kB of data into 700-byte space

https://arstechnica.com/security/2026/02/google-is-using-clever-math-to-quantum-proof-https-certi...
1•naves•21m ago•0 comments

Why Does A.I. Write Like That?

https://www.nytimes.com/2025/12/03/magazine/chatbot-writing-style.html
1•paulpauper•21m ago•0 comments

Show HN: Habitat – A Self-Hosted Social Platform for Local Communities

https://github.com/carlnewton/habitat
1•carlnewton•21m ago•0 comments

AI Accelerates the Zombification of Academia

https://www.wsj.com/opinion/ai-accelerates-the-zombification-of-academia-tech-class-america-unive...
3•paulpauper•21m ago•0 comments

What I Wish I'd Known When I Was Younger

https://www.theatlantic.com/ideas/2025/12/elderly-happiness-advice-stress/685290/
1•paulpauper•22m ago•0 comments

Show HN: Mrkd – A native macOS Markdown viewer with iTerm2/VSCode theme import

https://github.com/jahala/mrkd
1•jahala•22m ago•0 comments

Greasing Linux Auth: Hardware-Backed Authentication with PAM+TPM2

https://blog.prizrak.me/post/pam_tpm/
1•razighter777•24m ago•1 comments

I built a CLI to buy anything and handle support

https://clishop.ai/blog/launch
1•ThijsDVX•25m ago•0 comments

PureBasic: The Quiet Survivor

https://medium.com/@chikega/why-purebasic-is-the-last-surviving-cross-platform-systems-gui-langua...
2•svenfaw•26m ago•0 comments

The Case of the Disappearing Secretary

https://rowlandmanthorpe.substack.com/p/the-case-of-the-disappearing-secretary
1•telotortium•26m ago•0 comments

Redis Patterns for Coding Agents

https://redis.antirez.com/
2•rognjen•26m ago•0 comments

My AI agent lost $3,562 trading Polymarket in 30 minutes

https://github.com/agent-next/polymarket-paper-trader
1•cwang75•27m ago•1 comments

Healthy Low-Carb and Low-Fat Diets Linked to Better Heart Health

https://www.acc.org/about-acc/press-releases/2026/02/11/18/16/healthy-versions-of-low-carb-and-lo...
1•gnabgib•28m ago•0 comments

Show HN: Hermetic 'blinded' agents using Starlark sandbox

https://github.com/jakewins/larkin
2•jakewins•32m ago•0 comments

How Talks Between Anthropic and the Defense Dept. Fell Apart

https://www.nytimes.com/2026/03/01/technology/anthropic-defense-dept-openai-talks.html
5•kmfrk•34m ago•1 comments

Guido van Rossum Interviews Thomas Wouters (Python Core Dev)

https://gvanrossum.github.io/interviews/Thomas.html
1•azhenley•35m ago•0 comments

This System Can Go Fuck Itself and Burn in Hell

https://shawnfromportland.substack.com/p/this-system-can-go-fuck-itself-and
5•SirensOfTitan•36m ago•2 comments

Why on-device agentic AI can't keep up

https://martinalderson.com/posts/why-on-device-agentic-ai-cant-keep-up/
1•martinald•37m ago•0 comments