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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!

CHICKEN Scheme

https://www.call-cc.org/
1•tosh•2m ago•0 comments

uf

http://www.call-with-current-continuation.org/uf/uf.html
2•tosh•2m ago•0 comments

An AI agent on an ESP32 that can automate sensors, relais, speak NATS, Telegram

https://wireclaw.io/
1•m64-64•4m ago•0 comments

Thoughts on Forth Programming

http://www.call-with-current-continuation.org/articles/forth.txt
1•tosh•4m ago•0 comments

Computer History Museum Recovers Rare Unix History

https://www.youtube.com/watch?v=-xlq_MPWNKk
2•todsacerdoti•6m ago•0 comments

Watching a Robotics Startup Die from the Inside

https://ruixu.us/posts/six-things-robotics-startup
1•gkolli•6m ago•0 comments

TranslateGemma now runs 100% in the browser on WebGPU with Transformers.js v4

https://huggingface.co/spaces/webml-community/TranslateGemma-WebGPU
1•tzury•7m ago•1 comments

What Holds America Together?

https://walkingtheworld.substack.com/p/what-holds-america-together
1•VelNZ•8m ago•0 comments

Show HN: Elev8or Run Creator Marketing Like Paid Ads

https://www.elev8or.io
1•Sourabhsinr•9m ago•0 comments

Michael Burry Reveals Accounting Tricks of Mag 7 Firms to Inflate Earnings

https://www.ibtimes.co.uk/michael-burry-criticizes-tech-giants-ai-accounting-1781491
2•ironyman•10m ago•0 comments

Show HN: Draw on Screen – a modern screen annotation tool with webcam

https://drawonscreen.com/vs/epicpen/
3•markjivko•10m ago•0 comments

DataClaw

https://huggingface.co/datasets?other=dataclaw
1•notsahil•11m ago•0 comments

Spotify Urn

https://liquiddeath.com/pages/spotify-urn
1•giancarlostoro•11m ago•0 comments

US judge dismisses xAI trade-secrets lawsuit against rival OpenAI for now

https://finance.yahoo.com/news/us-judge-dismisses-xai-trade-201030751.html
1•pinewurst•12m ago•0 comments

IMockupper: I built an AI tool to automate App Store asset generation

1•damdafayton•13m ago•0 comments

GitHub Copilot CLI is now generally available

https://github.blog/changelog/2026-02-25-github-copilot-cli-is-now-generally-available/
1•chrfritsch•13m ago•0 comments

Show HN: Rediflow – SSR project management, one source of truth, no spreadsheet

https://gitlab.com/rediflow_eu/rediflow
1•janipaijanen•15m ago•0 comments

The State of AI Agents in 2026: $211B VC Funding, 92% Drop in Inference Costs

https://meditations.metavert.io/p/the-state-of-ai-agents-in-2026
1•Ross00781•15m ago•0 comments

A Style Guide for AI Agent Skills

https://github.com/mgechev/skills-best-practices
1•mgechev•16m ago•0 comments

SambaNova Eyes 10T Parameter Models for Agentic AI with New Chip

https://www.hpcwire.com/2026/02/24/sambanova-eyes-10-trillion-parameter-models-for-agentic-ai-wit...
1•rbanffy•17m ago•0 comments

Show HN: An agent that records Loom-style demos

https://www.rundown.video/
1•guico•17m ago•0 comments

We Opensourced xAI's Macrohard: SOTA 82% on OSWorld

https://coasty.ai/
1•PrateekJ17•18m ago•0 comments

Luciano Floridi on the LLM "writing style"

https://www.facebook.com/luciano.floridi.2025/posts/if-you-have-read-a-sufficient-number-of-llm-w...
1•danielam•18m ago•0 comments

Claude Code Scheduler

https://github.com/jshchnz/claude-code-scheduler
1•jshchnz•20m ago•0 comments

Oops, You Wrote a Database

https://dx.tips/oops-database
1•swyx•20m ago•0 comments

Mycelial turnover and persistence of wood-decay fungi at the microscale

https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.70957
2•PaulHoule•22m ago•0 comments

Attyx – tiny and fast GPU-accelerated terminal emulator written in Zig

https://github.com/semos-labs/attyx
2•nicholasrq•24m ago•0 comments

Rippled: Decentralized cryptocurrency blockchain daemon, XRP Ledger in C++

https://github.com/XRPLF/rippled
1•klaussilveira•25m ago•0 comments

Show HN: TypeDB Studio's AI agent for schema exploration and query generation

https://typedb.com/blog/vibe-querying-with-typedb-studio
2•flyingsilverfin•25m ago•1 comments

Anthropic acquires Vercept_AI to advance Claude's computer use capabilities

https://twitter.com/AnthropicAI/status/2026705792033026465
1•bigwheels•25m ago•1 comments