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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!

There's a Reason American Kids Are Such Picky Eaters

https://www.nytimes.com/2026/02/15/opinion/junk-food-picky-eaters.html
1•metadat•3m ago•1 comments

Watching Code Fly By

https://www.natemeyvis.com/on-watching-code-fly-by/
1•ingve•3m ago•0 comments

Show HN: DepGuard – Local dependency audit and license compliance (10 pkg mgrs)

https://github.com/suhteevah/depguard
1•suhteevah•9m ago•0 comments

Hamming Distance for Hybrid Search in SQLite

https://notnotp.com/notes/hamming-distance-for-hybrid-search-in-sqlite/
1•enz•9m ago•0 comments

Show HN: DocSync – Git hooks that block commits with stale documentation

https://github.com/suhteevah/docsync
1•suhteevah•10m ago•0 comments

ChatGPT "Physics Result" Reality Check: What It Did [video]

https://www.youtube.com/watch?v=3_2NvGVl554
1•smukherjee19•12m ago•0 comments

Zero Dependency Markdown Editor

https://overtype.dev/
1•l1am0•13m ago•0 comments

A Wave of Unexplained Bot Traffic Is Sweeping the Web

https://www.wired.com/story/made-in-china-niche-websites-are-seeing-a-surge-of-mysterious-traffic...
1•saikatsg•15m ago•0 comments

Show HN: AI-optimized x86-64 assembly vs. GCC -O3 on three production kernels

https://github.com/cleonard2341/ai-kernel-optimizer/blob/main/blog/ai-assembly-vs-gcc-o3.md
1•cod-e•32m ago•1 comments

Which past applications you built can be migrated to Agentic architecture?

1•sanatku•33m ago•0 comments

Over a million people rally worldwide in solidarity with Iran protests

https://www.iranintl.com/en/202602146821
1•ukblewis•36m ago•0 comments

Cynthia's Valentine (Sci-Fi)

https://stackdiver.com/posts/cynthias-valentine/
1•osmoscraft•37m ago•0 comments

How Investigators Find the Source of a Fire [video]

https://www.youtube.com/watch?v=1pPoB8be1G0
1•dataflow•37m ago•0 comments

As Complexity Grows, Architecture Dominates Material

https://worksonmymachine.ai/p/as-complexity-grows-architecture
1•thunderbong•40m ago•0 comments

Ex-Tech –> Homeless in SF

https://zamoshi.substack.com/p/ninety-four-degrees
4•Zamoshi•43m ago•1 comments

Help Recover Your Stolen Bitcoin – USA Intelligence Cyber Wizard

1•amymcomas•44m ago•0 comments

Show HN: LocalGPT Gen – LLM-driven world generation in Rust/Bevy [video]

https://www.youtube.com/watch?v=n18qnSDmBK0
1•yi_wang•48m ago•0 comments

Show HN: I built a 'Gym' for developers who want to stop relying on AI

https://get-human-spec.netlify.app/
2•sameerthite•56m ago•0 comments

Agentic Tech Magazine

https://agentcrunch.ai/
1•mikiarlo321•59m ago•0 comments

Use Microsoft Office Shortcuts in Libre Office

https://github.com/Zaki101Aslam/MS-office-shortcuts-for-Libre-Office
1•Zaki101Aslam•1h ago•1 comments

SmolMail – Stop typing what your emails know

https://smolmail.com/
1•narinluangrath•1h ago•1 comments

Is Your AI Agent Safe?

https://agentshield.live/
1•bartel_most•1h ago•1 comments

Switch instantly between your ego across ChatGPT, Claude, Gemini, Grok and local

https://context-wallet.com/
1•haebom•1h ago•0 comments

Show HN: AgentScore – Lighthouse for AI Agents

https://github.com/xiongallen40-design/agentscore
1•agentscore•1h ago•0 comments

Show HN: PlanOpticon – Extract structured knowledge from video recordings

https://github.com/ConflictHQ/PlanOpticon
1•ragelink•1h ago•0 comments

Discord Distances Itself from Peter Thiel's Palantir Age Verification Firm

https://kotaku.com/discord-palantir-peter-thiel-persona-age-verification-2000668951
7•thisislife2•1h ago•0 comments

Flashpoint Archive – Over 200k web games and animations preserved

https://flashpointarchive.org
22•helloplanets•1h ago•5 comments

The AGI gap might be epistemological, not technical

https://executelater.substack.com/p/we-dont-know-what-were-looking-for
5•NarratorTD•1h ago•1 comments

Show HN: Remote-OpenCode – Run your AI coding agent from your phone via Discord

https://github.com/RoundTable02/remote-opencode
1•remocode•1h ago•1 comments

Stop Saying Boredom Is Good for Kids

https://www.fast.ai/posts/2025-12-03-boredom/
2•tkazec•1h ago•0 comments