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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 Reading Make You Happier? (2015)

https://www.newyorker.com/culture/cultural-comment/can-reading-make-you-happier
1•the-mitr•4m ago•0 comments

U.N. Warns Against Technology Used to Read Citizens' Minds

https://www.nytimes.com/2026/10/08/world/europe/united-nations-technology-warning.html
1•reaperducer•5m ago•0 comments

Thinking Will Become a Hobby

https://www.spinellis.gr/blog/20261008/?li261008
1•vinhnx•9m ago•0 comments

Gentoo loses several sponsorships, seeking replacement infrastructure sponsors

https://itsfoss.com/news/gentoo-infrastructure-sponsors-call/
2•iamnothere•9m ago•1 comments

The Hetzner Cloud network stack

https://www.hetzner.com/blog/the-hetzner-cloud-network-stack-history-and-technical-overview/
2•vinhnx•9m ago•0 comments

A Family Video Game as a Hands-On Lesson in Creating with AI

https://stook-runner-family-game.paolo564466.chatgpt.site/
1•chefpaolofontan•11m ago•0 comments

Read to Your Children

https://jamespember.substack.com/p/read-to-your-children
4•jep888•19m ago•0 comments

What Should You Make of Gravity Linux?

https://boxed.news/2026/09/30/gravity-linux-m4-mac-mini-support
2•colinprince•21m ago•0 comments

A website designed to outlive its web host

https://ultimatedotcom.com/
2•JohnWayne_SV•23m ago•1 comments

I predict Apple will open their platforms within the next five years

https://jarbus.net/blog/apple-prediction/
4•jarbus•28m ago•2 comments

What should we tell our students?

https://terrytao.wordpress.com/2026/10/08/what-should-we-tell-our-students/
16•sajid•29m ago•5 comments

Instagram is sorry it gave users too much Creed

https://www.cnn.com/2026/10/08/entertainment/creed-instagram-suggested-music-cec
1•1659447091•30m ago•0 comments

Iran's drones hit America's Achilles heel

https://www.politico.com/news/2026/10/08/iran-drones-us-military-weakness-01110970
5•snarky-comments•31m ago•0 comments

Isoso CLI: Get WCAG/A11y Compliant

https://github.com/isoso-dev/isoso
2•marrykassa•36m ago•0 comments

My Startup Path (2007)

http://paulbuchheit.blogspot.com/2007/03/my-startup-path.html
5•mosesk•36m ago•0 comments

Relevance Is Not Preference: What We Learned Training ZooWork-ShopRanker

https://zoowork.ai/blog/relevance-is-not-preference-shopranker/
3•anna_1101•36m ago•0 comments

Isoso: Get WCAG/A11y Compliant

https://isoso.dev
1•marrykassa•37m ago•0 comments

Stop complaining about enshittification. Use the alternatives

https://a.l3x.in/blog/use-the-unshittified-alternatives/
5•alexfortin•39m ago•1 comments

Show HN: Veil – Zero-knowledge messenger with post-quantum encryption

https://tryveil.app/architecture
3•veil-im•40m ago•0 comments

US bars Microsoft, Adobe, and major IT firms from green card program

https://techcrunch.com/2026/10/08/us-bars-microsoft-adobe-and-major-it-firms-from-green-card-prog...
5•owenthejumper•46m ago•1 comments

Three Sweltering Days Shredding the High Seas

https://defector.com/i-spent-three-sweltering-days-shredding-the-high-seas-at-jogging-pace-and-it...
1•lantry•48m ago•0 comments

Mind, Amplified Now in Beta

https://www.archii.ai/
3•lbrendle•50m ago•1 comments

Richard Garriott is officially regaining control of the Ultima series

https://www.videogameschronicle.com/news/richard-garriott-is-officially-regaining-control-of-the-...
9•lnguyen•51m ago•2 comments

Tips for Startup Companies (2007)

http://philip.greenspun.com/business/startup-tips/
4•mosesk•53m ago•0 comments

Reducing undefined behavior in the C language

https://lwn.net/Articles/1095811/
16•signa11•54m ago•1 comments

Tor browser based encrypted file sharing

https://blackhole-fileshare.nexxuz.co/
5•TheNexxuz•56m ago•1 comments

Show HN: Moching – AI desktop agent with 219 built-in tools (Rust)

https://github.com/moching-ai-dev/moching
4•moching_ai_dev•56m ago•0 comments

US disrupts Chinese hacking tools as 7 govts warn of PRC spies

https://www.theregister.com/security/2026/10/08/us-disrupts-chinese-hacking-tools-as-7-govts-warn...
5•snarky-comments•57m ago•0 comments

Trump: Anyone saying "AI" is "THE ENEMY"; The White House uses it

https://www.axios.com/2026/10/08/trump-ai-super-intelligence-white-house
6•apical_dendrite•57m ago•2 comments

Augment Code's Next Chapter

https://www.augmentcode.com/blog/augment-code-next-chapter
3•multisport•57m ago•1 comments