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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!

Show HN: I just shipped the canonical neuro-symbolic control demo

https://github.com/anulum/scpn-fusion-core/blob/main/examples/neuro_symbolic_control_demo.ipynb
1•anulum•39s ago•0 comments

Blue Owl permanently halts redemptions at retail investor private credit fund

https://www.ft.com/content/b2f299f6-2a82-4a43-bcbf-86cac3937550
1•toomuchtodo•1m ago•0 comments

ClawJetty: Plug-In Personal OpenClaw Box

https://clawjetty.com/
1•andes314•5m ago•1 comments

Stoat: A Good Alternative to Discord?

1•peq42•6m ago•0 comments

MNX: AI perps, futures, and prediction markets

https://mnx.fi/
1•theptip•7m ago•0 comments

Mooncake Joins PyTorch Ecosystem

https://pytorch.org/blog/mooncake-joins-pytorch-ecosystem/
1•mji•7m ago•0 comments

Sound on the web: history, common use-cases, and best practices (2025)

https://blog.readymag.com/sound-on-the-web/
1•1659447091•8m ago•0 comments

I hacked ChatGPT and Google's AI – and it only took 20 minutes

https://www.bbc.com/future/article/20260218-i-hacked-chatgpt-and-googles-ai-and-it-only-took-20-m...
2•iamflimflam1•15m ago•0 comments

We just hit 1k users

https://laddernexus.com/
1•squiggyboy•15m ago•0 comments

Will Humans Still Review Code? The critical question companies must answer now

https://franciscomt.medium.com/will-humans-still-review-code-a6f7d3f0c39c
2•franciscomt•17m ago•0 comments

Yet another OpenClaw host, 2 minutes setup with Kimi K2.5 inside

https://clawhost.chat
1•vadimen•17m ago•1 comments

10k spinner phrases for Claude Code generated from Unix fortune

https://github.com/dylanlangston/claude-spinners-fortune
1•dylanlangston•19m ago•0 comments

The Last Skill

https://derrickburns720047.substack.com/p/the-last-skill
1•CoffeeOnWrite•19m ago•0 comments

I built a 9-stage ML pipeline that turns Reddit into timestamped options signals

https://github.com/Mattbusel/ROT-TECH-PDF
1•Shmungus•20m ago•1 comments

FDA reverses course and will review Moderna's mRNA flu shot, company says

https://www.cnn.com/2026/02/18/health/fda-moderna-mrna-flu-vaccine-reversal
3•CGMthrowaway•26m ago•0 comments

Your Consciousness Can Connect With the Whole Universe, Groundbreaking Research

https://www.popularmechanics.com/science/a70395978/consciousness-connects-with-universe/
3•madihaa•30m ago•4 comments

America, a Love Story

https://american-innocence.com/p/america-a-love-story
1•aschleck•30m ago•0 comments

Semantics, Operations, and Properties of P3109 Floating-Point Formats in Lean

https://github.com/rutgers-apl/FLoPS
1•matt_d•31m ago•0 comments

The Wrong Apocalypse

https://ionanalytics.com/insights/mergermarket/the-wrong-apocalypse-op-ed/
1•tdeangelis•32m ago•0 comments

Wider, Not Faster

https://www.kevinlondon.com/2026/02/15/not-faster-but-wider/
3•misbahkhan•33m ago•0 comments

LongCLI-Bench: Benchmark and Study for Long-Horizon Agentic Programming in CLIs

https://arxiv.org/abs/2602.14337
2•simonpure•34m ago•0 comments

Design-memory: Extract and reproduce design systems from any website

https://github.com/memvid/design-memory
2•simonpure•35m ago•0 comments

Musk cuts Starlink access for Russian forces – giving Ukraine an edge

https://www.bbc.com/news/articles/c0q3ndj7052o
5•dabinat•38m ago•1 comments

Show HN: Axelor Theme Designer

https://shivantra.com/axelor-theme-designer/
1•painternishant•41m ago•1 comments

Vibe Coding Technical Debt Visualizer

https://github.com/h-michaelson20/tech-debt-visualizer
1•hmichaelson24•41m ago•1 comments

OpenAI for India

https://openai.com/index/openai-for-india
1•surprisetalk•42m ago•0 comments

Theres no mainstream AI coding tool?

1•yakshithk_•42m ago•1 comments

New OpenAI funding to top $100B

https://www.bloomberg.com/news/articles/2026-02-19/openai-funding-on-track-to-top-100-billion-wit...
2•nikcub•43m ago•1 comments

OpenAI for India

https://openai.com/openai-for-india
2•surprisetalk•43m ago•0 comments

The Impossible Backhand

https://philippdubach.com/posts/the-impossible-backhand/
1•gmays•43m ago•0 comments