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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!

The Anatomy of a Pass

https://davidorban.substack.com/p/the-anatomy-of-a-pass
1•mayukh•4m ago•0 comments

Before We Click "Publish" on Hugging Face

https://twitter.com/icoxfog417/status/2086606980584714495
1•icoxfog417•4m ago•0 comments

Ask HN: What Project are you the most proud of?

1•emn4tor•7m ago•0 comments

Cloudflare OS

https://os.cloudflare.app/
2•phirschybar•9m ago•0 comments

What do I want to be? – a poem about parenting in the AI age

https://www.reddit.com/r/Adulting/s/1ZF6OLsjko
1•AmbroseBierce•12m ago•0 comments

I've Been to the Future. It Worked Out

https://iwanajohannsen.substack.com/p/ive-been-to-the-future-it-worked
1•herbertl•13m ago•0 comments

Owner of original Intel 8080 pre-production Rubylith mask seeks restorer

https://www.tomshardware.com/pc-components/cpus/owner-of-original-intel-8080-pre-production-layou...
1•sbulaev•16m ago•0 comments

Show HN: Discord-delete – Delete all your Discord messages from your data export

https://github.com/DatCodeMania/discord-delete
1•DatCodeMania•17m ago•1 comments

America's Military Is Dangerously Exposed

https://www.wsj.com/opinion/americas-military-is-dangerously-exposed-26706217
1•petethomas•18m ago•0 comments

Show HN: A local-first, modular replacement for your accounting software

https://github.com/celerp/celerp
1•ngsevers•19m ago•0 comments

Optimizing a GPT-2-Class Transformer on a GPU

http://martinkristiansen.com/llm-gpu-optimization/index.html
2•mkristiansen•21m ago•1 comments

Iran Is Rewiring Its Proxy Network

https://www.nationalreview.com/2026/08/iran-is-rewiring-its-proxy-network/
1•petethomas•23m ago•0 comments

Ancient Roman shipwreck discovered off Sicily coast

https://www.bbc.com/news/articles/cvgx1kpz17go
2•1659447091•25m ago•0 comments

Linus Torvalds Explains What Makes Linux So Fast [video]

https://www.youtube.com/watch?v=-xbzGngfQEw
1•binyu•29m ago•0 comments

Beyond Prompt Injection: Hacking Apple's Private Cloud Compute

https://blog.sentry.security/beyond-prompt-injection-hacking-apples-private-cloud-compute/
2•sickmate•35m ago•0 comments

GitHub issues as long-term memory for coding agents

https://meshintelligence.substack.com/p/how-to-use-github-as-long-term-memory
1•meshintel•36m ago•0 comments

Bank statement PDF to CSV that runs in the browser

https://statement-to-csv.pages.dev/
1•hewkaiba•38m ago•0 comments

NOVC: Venture Capital Free

https://novc.fyi/
1•xyzzy_plugh•43m ago•0 comments

.NET on AWS Open Source Software Fund

https://github.com/aws/dotnet-foss
1•kristianp•44m ago•0 comments

2036

https://www.codevoid.net/ruminations/2026/08/09/2036.html
1•grork•45m ago•0 comments

The Ambition Project

https://www.betonit.ai/p/the-ambition-project
2•herbertl•47m ago•0 comments

Modern JavaScript Tricks for Cleaner Everyday Code

https://jsdevspace.substack.com/p/20-modern-javascript-tricks-for-cleaner
1•javatuts•49m ago•0 comments

A browser that generates every website from scratch

https://www.xda-developers.com/tried-browser-generates-every-website-from-scratch/
1•TMWNN•50m ago•1 comments

NASA chooses a once-abandoned Spanish village to broadcast the 2026 eclipse

https://www.euronews.com/next/2026/08/07/why-nasa-chooses-this-small-burgos-village-to-broadcast-...
1•jmox•51m ago•0 comments

QuiltOps – Continuous packaging for your patches

https://quiltops.dev/
1•calvinmorrison•53m ago•0 comments

I made FilmShelves, a movie collection management tool

https://filmshelves.com
1•smatthewaf•54m ago•0 comments

vLLM Serving Experiments on H100s – config beats the baseline on p95 TTFT,ITL

https://efficientagent.substack.com/p/a-better-knob-beats-more-silicon
1•bnayak25•55m ago•0 comments

Show HN: A Planet and Geology Simulation Sandbox Game in Godot

https://stevecastle.github.io/gaia-site/
1•tracerbulletx•56m ago•0 comments

Meme factories: Indonesians trade political outrage clicks for Facebook cash

https://www.theguardian.com/media/2026/aug/10/indonesia-clicks-for-cash-facebook-one-nation-us-po...
1•Barbing•1h ago•1 comments

Anything Could Become a Battleground

https://lareviewofbooks.org/article/perfect-moment-god-sex-art-culture-wars-butler/
1•lermontov•1h ago•0 comments