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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•1y 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!

Double slash in Web addresses 'a bit of a mistake' (2009)

https://www.zdnet.com/article/double-slash-in-web-addresses-a-bit-of-a-mistake/
1•taubek•42s ago•0 comments

Show HN: Knowledge graph skill for Claude/Kimi Code

https://org-edge.com/sysedge.html
2•org-edge•51s ago•0 comments

Doing things right is a lonely craft

https://en.andros.dev/blog/d0d251b2/doing-things-right-is-a-lonely-craft/
1•inigyou•2m ago•0 comments

What Did We Lose When We Lost the Stars

https://theconvivialsociety.substack.com/p/what-did-we-lose-when-we-lost-the-c3b
1•longdefeat•3m ago•0 comments

Ask HN: What leads to government websites being badly engineered?

1•curiousaboutml•5m ago•0 comments

Holo: macOS utility turns desk around a MacBook into four assignable tap zones

https://github.com/JustinGamer191/Holo
1•ingve•5m ago•0 comments

Show HN: Free Math game for 6-8 years old – no accounts, works offline

https://github.com/abhas9/escape-run
1•redcat99•7m ago•0 comments

Pricing for 145 models LLM/STT/TTS aggregated and comparable

https://hail.so/costs
1•r13i•9m ago•0 comments

The Mathematics of Traffic Jams

https://theconversation.com/dont-change-lanes-the-maths-of-holiday-traffic-jams-287389
1•rwmj•12m ago•0 comments

Deliver Rider wins China's top literary prize for poetry

https://www.sixthtone.com/news/1018783/DeliverRiderWinsChina’sTopLiteraryPrizeforPoetry
1•whiteblossom•12m ago•0 comments

Show HN: Mute Users

https://github.com/David-OConnor/hn_mute
1•the__alchemist•14m ago•0 comments

SolarOS

https://old.reddit.com/r/cyberDeck/comments/1uemtp6/solaros/
1•carlosjobim•14m ago•0 comments

United States Metric Board

https://en.wikipedia.org/wiki/United_States_Metric_Board
1•scapecast•14m ago•0 comments

DRIVE – Operational Excellence for AI-accelerated engineering

https://www.cortex.io/drive
2•backlit4034•15m ago•0 comments

Bananas sprout in Rayleigh Garden UK after 15 years

https://www.bbc.com/news/articles/cvg8edqq5g5o
1•teleforce•16m ago•0 comments

Narv - An autonomous agent that converged toward microkernel design principles

1•narv-lab•19m ago•0 comments

Show HN: CallBro – Granola, but Powered by Codex, Claude Code, or Your Local LLM

https://callbro.ai/
1•zlat1997•26m ago•1 comments

OpenStreetMap: Admin_level for All Countries

https://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative#Table_:_Admin_level_for_all_cou...
1•ivanjermakov•26m ago•0 comments

Shopi Sri Lanka's No.1 E-Commerce Builder

https://shopi.lk/
1•ruzny-ramzan•28m ago•0 comments

DynamoDB Deep Dive

https://www.thetrueengineer.com/p/dynamodb-deep-dive
1•adletbalzhanov•29m ago•0 comments

Show HN: Claude Code Workflows for GPT/Codex

https://github.com/cyrusNuevoDia/gpt-workflow
2•knrz•31m ago•1 comments

Scalable Detection of Adversarial Synthetic Slop and Coordinated Media Abuse

https://research.google/pubs/scalable-detection-of-adversarial-synthetic-slop-and-coordinated-med...
2•thinkingemote•31m ago•1 comments

China's C919 passenger jets to enter service on first international route

https://www.msn.com/en-xl/technology/aviation/china-s-c919-passenger-jets-to-enter-service-on-fir...
3•ilamont•32m ago•0 comments

Fast DDS – C++ implementation of DDS standard of the OMG

https://github.com/eProsima/Fast-DDS
1•gjvc•35m ago•1 comments

Society for Hopeful Technologists

https://societyforhopefultechnologists.org/
2•edward•35m ago•0 comments

Vitamin C as a nitrosation inhibitor across dietary patterns and water quality

https://www.sciencedirect.com/science/article/pii/S002251932600069X?via%3Dihub
1•bookofjoe•36m ago•0 comments

YouTube's S-CTS: The AI Slop Purge has arrived

https://insidethecreator.beehiiv.com/p/the-slop-purge-has-arrived
1•CPLX•37m ago•0 comments

AI isn't destroying entry-level jobs. It's changing them

https://www.ft.com/content/6cb9570b-dccd-46f5-b42a-4d0b7b5de35a
1•thm•40m ago•1 comments

Users of Meta's Facebook, Instagram report suffering some outages

https://www.reuters.com/world/asia-pacific/users-metas-facebook-instagram-report-suffering-some-o...
1•saikatsg•40m ago•0 comments

One Giant Agent vs. 100 Small Agents

https://wolbarg.com/blog/one-giant-agent-vs-100-small-agents
1•atharvmunde•41m ago•0 comments