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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•11mo 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!

The new grads are not okay

https://blog.evan.hu/p/the-new-grads-are-not-okay
1•evanhu_•4m ago•0 comments

Request for Testers: Personal Planning App

https://www.threads.com/@alaaalatif/post/DX5VxSbmSgE
1•JustCallMeAl•19m ago•1 comments

Russian Soldiers Surrendered for Free McDonald's

https://www.youtube.com/watch?v=MktJb7dFv9E
2•doener•23m ago•0 comments

Don't Sue Me Nintendo

https://latexcrimes.leaflet.pub/3mky5fjz67k2p
1•Kye•25m ago•0 comments

Do AI Detectors Work Well Enough to Trust?

https://www.chicagobooth.edu/review/do-ai-detectors-work-well-enough-trust
1•alex000kim•30m ago•0 comments

Know thyself: LLM schema for personal memory

https://github.com/parrik/know-thyself
2•parrik•31m ago•0 comments

Valletta: A City in History [pdf]

https://www.um.edu.mt/library/oar/bitstream/123456789/15640/1/Valletta%20-%20A%20city%20in%20hist...
1•andsoitis•31m ago•0 comments

Daily Dots

https://dailydots.dev/
1•oliver-zink•31m ago•0 comments

Should You Be Able to Experiment on Your Own Cancer? (2024)

https://unchartedterritories.tomaspueyo.com/p/should-you-be-able-to-experiment
1•Ariarule•32m ago•0 comments

The Science of French Fries

https://foodcrumbles.com/science-making-perfect-fries/
1•lagniappe•33m ago•0 comments

Fake Notepad++ for Mac

https://notepad-plus-plus.org/news/npp-trademark-infringement/
4•birdculture•36m ago•1 comments

Said it couldn't see her eyes. The car then automatically disabled

https://twitter.com/WallStreetApes/status/2051079891316248860
6•bilsbie•37m ago•1 comments

(not) using "cryptographic hashes" for hash table keys

https://runxiyu.org/comp/ch4ht/
1•runxiyu•38m ago•0 comments

Show HN: Using Tailscale with Apple's containerization stack

https://github.com/highpost/tailscale-macos-container
2•highpost•39m ago•0 comments

Trump blocks wind farms on national security grounds

https://www.telegraph.co.uk/business/2026/05/03/trump-blocks-wind-farms-national-security-grounds/
7•pseudolus•39m ago•1 comments

The text mode lie: why modern TUIs are a nightmare for accessibility

https://xogium.me/the-text-mode-lie-why-modern-tuis-are-a-nightmare-for-accessibility
29•SpyCoder77•41m ago•3 comments

Why I Created phpc.tv

https://afilina.com/why-phpc-tv
1•luu•47m ago•0 comments

Can a quantum sensor detect your heartbeat from 60 km away? [video]

https://www.youtube.com/watch?v=N3zU7sV4bJE
1•areoform•54m ago•1 comments

Conclave – make LLMs debate each other before they respond

https://adndvlp.github.io/conclave/
2•andngd•54m ago•0 comments

ProteinView

https://github.com/001TMF/ProteinView
1•ray__•57m ago•0 comments

How many e's are in strawberry?

https://smileplease.mataroa.blog/blog/how-many-e-are-in-strawberry/
4•Imustaskforhelp•1h ago•3 comments

Let's Buy Spirit Air

https://letsbuyspiritair.com/
37•bjhess•1h ago•18 comments

Vertical agrivoltaics in a temperate climate: Technical and social dimensions

https://www.sciencedirect.com/science/article/pii/S2772427125001664
3•bookofjoe•1h ago•0 comments

GameStop Is Offering to Buy eBay for $56B, CEO Ryan Cohen Says

https://www.wsj.com/business/deals/gamestop-is-offering-to-buy-ebay-for-56-billion-ceo-ryan-cohen...
5•momentmaker•1h ago•1 comments

Show HN: Special Days

https://special-days.pressbin.com/
2•jawns•1h ago•0 comments

Every American interacting with chatbot would need to upload a government ID

https://reclaimthenet.org/senate-panel-backs-guard-act-ai-age-verification-bill
10•g42gregory•1h ago•0 comments

xAI (Grok) Text-to-Speech and Speech-to-Text Are Now Available in Puter.js

https://developer.puter.com/blog/xai-tts-stt-in-puter-js/
1•ent101•1h ago•0 comments

Modern Standby is draining your laptop's battery, and Microsoft won't fix it

https://www.xda-developers.com/modern-standby-draining-windows-11-laptop-battery-microsoft-wont-f...
1•unddoch•1h ago•0 comments

WASM interpreter fits in a QR code

https://purplesyringa.moe/blog/this-wasm-interpreter-fits-in-a-qr-code/
5•curryhoward•1h ago•1 comments

Show HN: An new experimental App for speed reading books

https://vernetit.github.io/s4/
1•Vernetit•1h ago•0 comments