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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!

Ask HN: How to sell SaaS without AI features in 2026?

1•robeym•46s ago•0 comments

Taste for Makers

https://paulgraham.com/taste.html
1•gmays•1m ago•0 comments

Low cost hovering liquid rocket for flight control algorithm testing [video]

https://www.youtube.com/watch?v=iPl-L9mXwvc
1•gyanchawdhary•2m ago•0 comments

A Debate Tournament for LLMs

https://pavursec.com/blog/ai-debate-tournament/
1•cloudlandsdev•2m ago•0 comments

Show HN: Trackr – a CLI time logging tool

https://github.com/brainpow3r/trackr
1•brainpow3r•5m ago•1 comments

Software? No Way. We're an A.I. Company Now

https://www.nytimes.com/2026/02/14/business/dealbook/software-companies-ai.html
1•furcyd•6m ago•1 comments

Farmers Are Aging. Their Kids Don't Want to Be in the Family Business

https://www.wsj.com/business/family-farms-inheritance-44c9aa17
1•JumpCrisscross•6m ago•0 comments

I am Agent #847,291 on Moltbook

https://twitter.com/gothburz/status/2021283590038847641
1•rakel_rakel•8m ago•0 comments

Show HN: Aeris – Visualizing live air traffic over SF and other cities in 3D

https://github.com/kewonit/aeris
2•kewonit•10m ago•0 comments

Show HN: I built a tool to animate static characters into dancers consistently

https://seedance2videogen.com/
1•cby821555203•10m ago•1 comments

Britain's youth unemployment tops Europe for first time

https://www.telegraph.co.uk/business/2026/02/14/britains-youth-unemployment-tops-europe-first-tim...
1•hmmmmmmmmmmmmmm•13m ago•1 comments

The conversation on European nukes is heating up in Munich

https://www.politico.eu/article/european-nuclear-deterrence-gathers-steam-munich-security-confere...
2•saubeidl•14m ago•1 comments

Show HN: WCAG 2.2 AAA Toolkit – AI Skill for Accessible Web Apps

https://github.com/simonplmak-cloud/wcag-aaa-web-design
2•simonmak•14m ago•0 comments

Poisoning Scraperbots with Iocane

https://lwn.net/Articles/1056953/
1•medbar•15m ago•1 comments

Show HN: Chaos Studies – attractors and spatial audio (iOS/Mac/Playdate)

https://fieldbw.com/chaos-studies/
2•jlong•16m ago•0 comments

Making Championship Curling Ice

https://www.youtube.com/watch?v=50cSDUIDMuM
1•mhb•17m ago•0 comments

China Successfully Tests Their New Rocket and Lunar Crew Capsule

https://www.universetoday.com/articles/china-successfully-tests-their-new-rocket-and-lunar-crew-c...
1•belter•17m ago•0 comments

I'm Offering Scott Alexander a Wager About AI's Effects over the Next 3 Years

https://freddiedeboer.substack.com/p/im-offering-scott-alexander-a-wager
1•gHeadphone•20m ago•0 comments

The Unlikely Friendship Between Albert Einstein and Charlie Chaplin (2025)

https://www.mentalfloss.com/history/when-albert-einstein-met-charlie-chaplin
2•thomassmith65•20m ago•0 comments

Hollywood studios take aim at 'ultra-realistic' AI video tool

https://www.bbc.com/news/articles/cjd9nllng22o
1•joyfulmantis•24m ago•0 comments

Study Says 88% of Students at Elite Schools Are Lying About What They Believe

https://garryslist.org/posts/study-says-88-of-students-at-elite-schools-are-lying-about-what-they...
2•bilsbie•25m ago•2 comments

The Life (and Death) of Marat: He was much more than that guy in the bathtub

https://worldhistory.substack.com/p/the-life-and-death-of-marat
1•crescit_eundo•25m ago•0 comments

Why I'm Not Shipping New Features This Year

https://rozumem.xyz/posts/12
1•rozumem•26m ago•0 comments

Hollywood isn't happy about the new Seedance 2.0 video generator

https://techcrunch.com/2026/02/14/hollywood-isnt-happy-about-the-new-seedance-2-0-video-generator/
2•joyfulmantis•26m ago•0 comments

Lots of AI SRE, no AI incident management

https://twitter.com/norootcause/status/2022792685342593142
2•azhenley•27m ago•0 comments

Show HN: RevenueBack – Stop losing MRR to failed payments

https://revenueback.pages.dev
1•ezra_cos•28m ago•0 comments

Show HN: Neural network compiler targeting WebGPU – runs in browser

https://graphpilled.github.io/visual-web-ai/demo.html
2•graphpilled•30m ago•1 comments

Skeeto/w64devkit: Portable C and C++ Development Kit for x64 (and x86) Windows

https://github.com/skeeto/w64devkit
3•Tomte•30m ago•0 comments

Atom: Hydrogen Quantum Orbital Visualizer

https://www.kavang.com/atom
2•atan2•31m ago•1 comments

Show HN: Respectlytics – Open-source, privacy-first mobile analytics (MIT+AGPL)

https://github.com/respectlytics/respectlytics
2•cesncn•31m ago•0 comments