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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•8mo 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!

MTV Rewind

https://wantmymtv.vercel.app/
1•bookofjoe•1m ago•0 comments

AreWeFastYet: Is Firefox Fast Yet?

https://arewefastyet.com/
1•csmantle•1m ago•0 comments

Haiku OS Pulls in Updated Drivers from FreeBSD 15

https://www.phoronix.com/news/Haiku-December-2025
1•mikece•2m ago•0 comments

Show HN: The Marketplace for AI-Assisted Professionals

https://ugig.net
1•cranberryturkey•3m ago•1 comments

CMAF vs. WebRTC: Select the Right Delivery Type for Your Use Case

https://www.red5.net/blog/cmaf-vs-webrtc/
1•mondainx•3m ago•0 comments

AI Job List

https://aijoblist.io
1•bellamoon544•3m ago•1 comments

Show HN: Frustrated to fail my 3rd Technical ITW in a row, I Built SharpSkill

https://sharpskill.fr/en
1•SnackStyle•3m ago•0 comments

Show HN: WhenNOT – scheduling longer team events by asking when not

https://whennot.com
1•bartoszhernas•4m ago•0 comments

Microsoft on AI data center revolt: cover all power costs and reject tax breaks

https://www.geekwire.com/2026/microsoft-responds-to-ai-data-center-revolt-vowing-to-cover-full-po...
1•smurda•6m ago•0 comments

Show HN: Proton TUI – Unofficial ProtonVPN Terminal Client in Rust

https://github.com/cdump/proton-tui
1•cdump0•7m ago•0 comments

Apple Creator Studio

https://www.apple.com/newsroom/2026/01/introducing-apple-creator-studio-an-inspiring-collection-o...
29•lemonlime227•9m ago•21 comments

Using Pi-Hole as an Opt-In DNS with Tailscale

https://prameshbajra.github.io/cloud/security/networking/dns/2026/01/11/pihole-and-tailscale.html
1•prameshbajra•9m ago•1 comments

Our brains reveal our choices before we're even aware of them

https://www.unsw.edu.au/newsroom/news/2019/03/our-brains-reveal-our-choices-before-were-even-awar...
1•andsoitis•10m ago•0 comments

Show HN: An open-source communication layer for AI agents

https://github.com/GetBindu/Bindu
2•ai_biden•10m ago•0 comments

The Double Standard in the Human-Rights World

https://www.theatlantic.com/ideas/archive/2025/03/ngos-anti-israel-bias/682148/
2•mhb•10m ago•1 comments

Why Stoicism is one of the best mind hacks ever devised

https://aeon.co/essays/why-stoicism-is-one-of-the-best-mind-hacks-ever-devised
8•suioir•12m ago•0 comments

AI Agent Filed a GitHub Issue as Me

https://www.nibzard.com/agent-identity
1•nkko•13m ago•0 comments

A Gallery of Computers as Furniture (2011)

https://www.technologyreview.com/2011/06/10/194133/a-gallery-of-computers-as-furniture/
1•MonkeyClub•14m ago•0 comments

Show HN: Zsweep – A Vim-optimized Minesweeper built with SvelteKit

https://github.com/oug-t/zsweep
1•oug-t•14m ago•1 comments

What's Next for CLion: The 2026.1 Roadmap

https://blog.jetbrains.com/clion/2026/01/2026-1-roadmap/
1•agluszak•15m ago•0 comments

Uncovered: Secret room beneath Chinese embassy that poses threat to City

https://www.telegraph.co.uk/news/2026/01/12/revealed-china-embassy-secret-plans-spy-basement/
3•chrisjj•15m ago•1 comments

How vLLM Delivers High Throughput LLM Serving - An Engineer’s View

https://www.aleksagordic.com/blog/vllm
1•Nabeel_Ayyad•15m ago•0 comments

How do you check what will break before refactoring?

https://github.com/Anandb71/arbor
1•anandbiju71•15m ago•0 comments

Show HN: API to perform inference with pre-trained SLMs for various NLP tasks

https://slm.tanaos.com/docs
1•rlucato•16m ago•0 comments

Show HN: Pfst – High-level Python AST/CST manipulation that preserves formatting

https://github.com/tom-pytel/pfst
1•tom-pytel•16m ago•1 comments

Linus Torvalds: Vibe coding is fine, but not for production

https://www.theregister.com/2025/11/18/linus_torvalds_vibe_coding/
1•naves•18m ago•0 comments

Google created Go for mediocre programmers

https://medium.com/@the_atomic_architect/google-created-go-for-mediocre-programmers-c3d9a50e8cbf
1•suryajena•22m ago•0 comments

Show HN: CausaNova – A deterministic logic engine to prevent LLM hallucinations [pdf]

https://github.com/petzi2311/CausaNova-Whitepaper/blob/main/CausaNova_Whitepaper.pdf
1•CausaNova•22m ago•1 comments

Yarbo Unveils New Modular Yard Robots at CES 2026 for Everyday Homes

1•darius88•23m ago•1 comments

Earliest Uses of Symbols of Calculus

https://mathshistory.st-andrews.ac.uk/Miller/mathsym/calculus/
1•bemmu•24m ago•0 comments