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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!

I Love Music More Than I Love You – A love letter to music from a misanthrope

https://medium.com/p-s-i-love-you/i-love-music-more-than-i-love-you-5bb562262e8d
1•monkeymagick•1m ago•0 comments

How Minerals Create the Dazzling Colors of Independence Day Fireworks

https://www.usgs.gov/news/featured-story/earth-sky-how-minerals-create-dazzling-colors-independen...
1•lemonberry•1m ago•0 comments

The next big breakthrough will be AIs learning on the job

https://www.dwarkesh.com/p/the-next-paradigm
2•gmays•2m ago•0 comments

From Julia to Rust: a differentiable tensor stack for scientific computing

https://tensor4all.org/blog/introducing-tenferro-rs/
1•postflopclarity•2m ago•0 comments

Salt Lake City's falling birth rate means more schools are likely to close

https://www.sltrib.com/news/2026/06/30/which-salt-lake-city-schools-are/
1•toomuchtodo•3m ago•0 comments

I replaced Tailscale with Pangolin for remote access, much easier than expected

https://www.xda-developers.com/replaced-tailscale-pangolin-remote-access-much-easier-than-expected/
1•theanonymousone•4m ago•0 comments

Show HN: Rinkta – pulls finished work from all task managers into one dashboard

https://rinkta.com/
1•elvinas•4m ago•0 comments

Do AI Agents Make ML Compilers Obsolete?

https://maderix.substack.com/p/the-compiler-strikes-back
1•spenrose•4m ago•0 comments

XFCE4 desktop icons no longer persist positions after 4.20.2 update

1•eth0up•4m ago•0 comments

Modeling the Covid-19 Outbreak with J (2020)

https://datakinds.github.io//2020/03/15/modeling-the-coronavirus-outbreak-with-j
1•surprisetalk•4m ago•0 comments

Article exposing 'parasite SEO' from ClickoutMedia been removed from Google

https://pressgazette.co.uk/news/spurious-copyright-claim-sees-second-press-gazette-story-removed-...
1•thelostagency•5m ago•1 comments

The AI jobs debate just got messier

https://techcrunch.com/2026/06/29/the-ai-jobs-debate-just-got-messier/
1•evo_9•5m ago•0 comments

Show HN: Valmis, an OpenClaw alternative built for work, with security in mind

https://github.com/valmishq/valmis
1•wayneshng•5m ago•0 comments

DGX Spark vs. Mac Studio and Halo

https://aimultiple.com/dgx-spark-alternatives
1•kristianpaul•7m ago•0 comments

Does Social Media Use Matter for Students' Well-Being?

https://link.springer.com/article/10.1007/s10902-026-01070-y
2•rcy•8m ago•0 comments

Gut-homing antibodies protect against norovirus, potential for vaccines

https://news.yale.edu/2026/06/24/gut-punch-new-study-knocks-out-norovirus-where-it-strikes
1•gmays•8m ago•0 comments

External Blogs with WordPress

https://book.micro.blog/external-blogs-wordpress/
1•speckx•10m ago•0 comments

Show HN: Fits – compress PDF, pick the output size, fast, no upload, free

https://fits.tools/
1•egntms•11m ago•0 comments

Ask HN: Secure Wrapper for Coding Agents

1•rjzzleep•11m ago•0 comments

Osakan singer Swetty: Emo rock to electronic pop rebirth

https://www.dazeddigital.com/music/article/70410/1/osaka-s-swetty-is-making-emo-music-for-the-hyp...
1•whiteblossom•12m ago•0 comments

Show HN: Ouijit, command terminals running coding agents

https://github.com/ouijit/ouijit
3•pbjerkeseth•14m ago•1 comments

Show HN: TinySearch – token-efficient web research for local AI agents

https://github.com/MarcellM01/TinySearch
1•MarcBuilds01•15m ago•0 comments

Open USD: a shared stablecoin for global financial activity

https://joinopenstandard.com/
1•strzalek•15m ago•0 comments

Red Programming Language: Static linking support

https://www.red-lang.org/2026/06/static-linking-support.html
1•em-bee•15m ago•0 comments

Your Symfony App Now Runs on Laravel Cloud

https://laravel.com/blog/your-symfony-app-now-runs-on-laravel-cloud
1•gkedzierski•15m ago•0 comments

Time and Order in Distributed Systems: Logical Clocks, Partial and Total Order

https://www.codedump.info/dist-system-en/time/
1•codedump•16m ago•0 comments

TinyRetroPad – Notepad.exe in pure asm – 2686 bytes

https://github.com/plummersSoftwareLLC/TinyRetroPad
1•hosteur•17m ago•2 comments

Show HN: Built a minimalist currency converter app that I use daily now

https://globallybased.com/denom
2•ilyagruzhevski•17m ago•1 comments

Why LLMs invent answers instead of saying they don't know

https://cristobalsantana.substack.com/p/hallucination-vs-confabulation-why
1•csantana_ml•18m ago•0 comments

The Threat of Residential Proxies

https://www.feistyduck.com/newsletter/issue_138_the_threat_of_residential_proxies
2•speckx•19m ago•0 comments