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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!

Epstein Files: if you change the extension to .mp4 you can view the videos

https://old.reddit.com/r/Epstein/comments/1r1dkrf/comment/o4orail/
1•wise_blood•2m ago•0 comments

Charts show how Trump is isolating the US on the world stage

https://www.theguardian.com/world/ng-interactive/2026/feb/13/these-charts-show-how-trump-is-isola...
1•gizzlon•2m ago•0 comments

What Agentic AI "Vibe Coding" in the Hands of Actual Programmers / Engineers

https://www.stochasticlifestyle.com/what-agentic-ai-vibe-coding-in-the-hands-of-actual-programmer...
1•xeonmc•2m ago•0 comments

Forge: Scalable Agent RL Framework and Algorithm

https://www.minimax.io/news/forge-scalable-agent-rl-framework-and-algorithm
1•dougian•3m ago•0 comments

Dijkstra's algorithm won't be replaced in production routers any time soon

https://www.theregister.com/2026/02/10/dijkstras_algorithm_impact_on_networks/
1•pseudolus•4m ago•0 comments

600% memory price surge threatens telcos' broadband router

https://theoverspill.blog/2026/02/13/climate-change-acceleration-question-start-up-2609/
1•doener•6m ago•0 comments

Building Trust in Fusion Energy

https://cfs.energy/news-and-media/building-trust-in-fusion-energy/
1•mpweiher•7m ago•1 comments

Self-replicating RNA discovered of only 45 nucleotides long

https://www.science.org/doi/10.1126/science.adt2760
1•s3tt3mbr1n1•7m ago•1 comments

Show HN: Seedance 2.0 - Create cinematic AI videos from text and images

https://www.seedance20.site
1•Sharon111•8m ago•0 comments

Trump revokes basis of US climate regulation, ends vehicle emission standards

https://www.reuters.com/legal/litigation/trump-administration-set-revoke-basis-us-climate-regulat...
2•pseudolus•10m ago•0 comments

Closed –> Traced –> Closed: Did a Tech Giant Panic over an HTTP/2 200 OK Bypass?

1•CorporationHit•12m ago•0 comments

OpenClaw Hub: A Platform for Managing OpenClaw Skills

https://openclawskill.net
1•cherry19870330•13m ago•1 comments

Show HN: A macOS App to shrink files natively

https://tinyfast.app
2•melvinzammit•13m ago•0 comments

Polish YouTuber heated his house by burning 133 Lidl donuts

https://twitter.com/TheDealMakerGuy/status/2021980347752476910
2•tosh•13m ago•2 comments

zvec: embedded vector database

https://github.com/alibaba/zvec
1•dvrp•14m ago•0 comments

A Pilot Fired over Kristi Noem's Missing Blanket and Constant Chaos Inside DHS

https://www.wsj.com/politics/policy/chaos-kristi-noem-homeland-security-f095ac95
2•petethomas•15m ago•0 comments

Firefox RCE: visit a web page, attacker gets shell

https://twitter.com/I_Am_Jakoby/status/2022168278500880740
2•hosteur•15m ago•0 comments

Babylon 5 Is Now Free to Watch on YouTube

https://cordcuttersnews.com/babylon-5-is-now-free-to-watch-on-youtube/
1•walterbell•19m ago•0 comments

Vintage Typewriter Simulator

https://typeletter.aishashok.com/
1•JeanKage•21m ago•0 comments

Is it just me, or is the modern hiring grind broken?

1•microseyuyu•21m ago•1 comments

Richard Dawkins met Epstein despite knowing of conviction

https://www.thetimes.com/us/news-today/article/richard-dawkins-epstein-emails-sx82lwsbz
6•petethomas•22m ago•1 comments

MusicForProgramming();

https://musicforprogramming.net/latest/
2•l1am0•27m ago•0 comments

Ask HN: Hackable Home Security Systems?

1•max_•29m ago•0 comments

FARS (Fully Automated Research System)

https://analemma.ai/blog/introducing-fars/
1•ekaesmem•34m ago•0 comments

Code Storage

https://code.storage/
1•tosh•38m ago•1 comments

Robotics firms struggle to develop hands

https://www.bbc.com/news/articles/cg7y45kxvp9o
2•ranit•40m ago•0 comments

Pixel Art to CSS

https://pixelartcss.com/
2•dsego•42m ago•0 comments

Harness engineering: leveraging Codex in an agent-first world

https://openai.com/index/harness-engineering/
1•valyala•43m ago•0 comments

Show HN: MarginDash – See which AI customers are profitable

https://margindash.com/
1•gdhaliwal23•46m ago•1 comments

GoAccess CLI Log Analyzer Release 1.10

https://goaccess.io/release-notes
2•osxman•49m ago•1 comments