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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!

Can Bus Simple Intro

https://www.csselectronics.com/pages/can-bus-simple-intro-tutorial
1•ozornin•54s ago•0 comments

North Korea's Operation to Conquer the American Job Market

https://www.wsj.com/business/media/inside-north-koreas-operation-to-conquer-the-american-job-mark...
1•doron•59s ago•1 comments

Gloomberb

https://gloom.sh/
1•rbanffy•1m ago•0 comments

Show HN: Ghostglyph – Turn photos into cyberpunk ASCII art in the browser

https://ghostglyph.net/
1•pj3677•1m ago•0 comments

Namecheap.com, Hosting Services, DNS Service, Private Email, EasyWP Maintenance

https://www.namecheap.com/status-updates/namecheap-com-and-hosting-services-emergency-maintenance-2/
2•neogodless•2m ago•0 comments

Cmux SSH Lagging

1•217•3m ago•0 comments

Database internals explained and measured using rust

https://github.com/AviAvni/database-learning-path
1•AviAvni•5m ago•0 comments

Anthropic: Introducing The Conceptual Reasoning Index

https://alignment.anthropic.com/2026/conceptual-reasoning-index/
1•optimalsolver•5m ago•1 comments

Show HN: Delphi – Build your own AI trading agent in seconds

https://tradewithdelphi.com/
1•ariavikram•5m ago•0 comments

Show HN: Ichabod – The (slightly spooky) headless professional network

https://ichabod.dev
1•alexandermkinn•6m ago•0 comments

There are two kinds of theorems

https://blog.plover.com/math/two-kinds-of-theorems.html
1•andsoitis•7m ago•0 comments

Show HN: TaskFuel – agents discover and pay per call for 100 APIs

https://taskfuel.ai/
1•interface1860•9m ago•2 comments

We measured whether our agents follow their instructions

https://firekeep.ai/instruction-compliance.html
1•kapella•11m ago•0 comments

The End of the Transistor? The Chip That Thinks Like a Brain [video]

https://www.youtube.com/watch?v=AHZxhdjCBSo
2•binyu•12m ago•0 comments

GEA and the Open Agentic Web

https://www.oasy.ai/blog/gea-open-agentic-web
3•cloudseeding•13m ago•0 comments

Ordinary Abundance

https://ordinaryabundance.com/
1•yen223•13m ago•0 comments

Show HN: I made a tool that rebuilds editable slides from images

https://sliderebuild.org
1•Graxi•14m ago•0 comments

Namecheap.com undergoing emergency maintenance due to a power outage in Phoenix

https://www.namecheap.com/status-updates/
3•Pikamander2•15m ago•1 comments

Show HN: MCP-uplift – run legacy MCP servers behind the new stateless protocol

https://github.com/MohibShaikh/mcp-uplift
1•bazmou•15m ago•0 comments

DeepSeek v4 Price Increase

https://xcancel.com/deepseek_ai/status/2087864589895798968#m
1•lukax•15m ago•3 comments

Proactive AI Will Automate Organizations

https://maximilianmews.com/proactive-ai/
2•ximilian•16m ago•2 comments

I Built a 500k-Domain Search Engine for Makers in a Weekend for $10

https://alexmorleyfinch.github.io/marlin/history/v1/article/the_birth.html
2•dreamforever•17m ago•1 comments

Show HN: HypeBESTIE, sincere RLHF-free, em-dash-free image compliment generator

https://hypebestie.onrender.com
1•mcramblett•17m ago•1 comments

Despite Updates, Flock's Creepy Cameras Remain Major Civil Liberties Threat

https://www.aclu.org/news/privacy-technology/despite-new-updates-flocks-creepy-cameras-remain-maj...
1•cdrnsf•17m ago•0 comments

NaN-Fiction

https://rateyourmusic.com/list/bushn/nan-fiction/
1•nbush•18m ago•0 comments

HN: Μz – a micro zsh plugin manager still going strong after 5 years

https://github.com/maxrodrigo/uz
1•maxrodrigo•21m ago•0 comments

Bit Alice Can Send – the most informative message will not win the game

https://medium.com/science-spectrum/the-best-bit-alice-can-send-871a70ae0e93
1•armchairquantum•22m ago•0 comments

DeepSeek Harness official website launched

https://www.deepseek.com/harness/en/
3•linnoe•23m ago•0 comments

DeepSeek Harness Released

https://twitter.com/deepseek_ai/status/2087887408440164663
5•rochansinha•23m ago•0 comments

ScaleRelay – Sync Xiaomi Scales with Garmin Connect

https://scalerelay.app/
1•lesny_ludek•23m ago•0 comments