frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Open in hackernews

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 Data Recipe for Teaching AI New Skills [video]

https://www.youtube.com/watch?v=I9F_VFfLTmM
2•aborovykh•5m ago•1 comments

Obsidian AI Setup – A production-ready onboarding skill for AI agents

https://github.com/anliberant/obsidian-ai-setup
1•javatuts•8m ago•0 comments

Google's AI buildout drove 37% increase in electricity use in 2025

https://arstechnica.com/ai/2026/07/googles-ai-buildout-drove-37-increase-in-electricity-use-in-2025/
3•mpfect•19m ago•0 comments

Show HN: Opplic AI growth employees for web agencies

https://opplic.com
1•sanketta•21m ago•0 comments

Nvidia B300 vs H200: GPU Specs and Performance Analysis

https://canopywave.com/blog/nvidia-b300-vs-h200-gpu-specs-performance-analysis
1•Timmyzzz•27m ago•0 comments

Show HN: Warmbly – Automate cold email outreach

https://github.com/warmbly/warmbly
1•meszmate•29m ago•0 comments

Meta: New Muse Spark update, and an Opus level Muse variant, are both on the way

https://twitter.com/i/status/2072858780816330833
1•euio757•30m ago•0 comments

Go (golang) Report Card project/service was archived on Jul 1, 2026

https://github.com/gojp/goreportcard/commit/176744ca23b40aa64c55b390161a3c78982e91b8
1•guessmyname•33m ago•0 comments

Ask HN: Is anyone experimenting with different ways of using LLMs for coding?

6•yehiaabdelm•35m ago•4 comments

After WhatsApp, Indian govt sends notices to Telegram, Signal over usernames

https://www.hindustantimes.com/india-news/after-whatsapp-centre-notices-to-telegram-signal-today-...
1•shibaprasadb•37m ago•0 comments

Buy nothing, feel richer – South Korea dopamine apps

https://www.koreajoongangdaily.com/lifestyle/these-brainhacking-services-let-you-buy-absolutely-n...
1•BaudouinVH•39m ago•0 comments

Ford rehires human engineers after AI fails to match quality checks

https://www.bbc.com/news/articles/cgrkd41n2v9o
2•gmargari•41m ago•0 comments

Horsewood: I Tried It for 60 Days – My Honest ReviewS

https://finance.yahoo.com/sectors/healthcare/articles/horsewood-urgent-report-2026-horse-19110038...
1•gaxyjami•42m ago•0 comments

Ask HN: What does a good day at work look like in the AI era?

2•akashwadhwani35•46m ago•1 comments

We Tested 40 CSS Tools for Performance and Learning Curve. Here's What Won

https://cssawwwards.com/blog/color-blindness-accessible-design-guide-2026
2•cssawwwards•54m ago•0 comments

Three Hundred Fifty-Four Fireworks per Second. Is it a good idea?

https://chadtopaz.com/essays/fireworks-per-second.html
1•mattoxic•56m ago•0 comments

Why Build vs. Buy is the wrong question

https://quii.dev/Why_%22Build_vs_Buy%22_is_the_Wrong_Question
1•quii•58m ago•0 comments

Understanding AI with Soumitra Dutta

https://soumitradutta.gt.tc
1•davidwilliam26•1h ago•0 comments

AI is punishing game developers [video]

https://www.youtube.com/watch?v=59XdUJRzRxc
1•frag•1h ago•0 comments

Show HN: Mobile View – a Chrome extension showing desktop and mobile at once

https://chromewebstore.google.com/detail/mobile-view-—-mobile-simu/hocbjiaeeijekejepphjihbpogik...
2•mongrus•1h ago•2 comments

Agentrc – Dockerfile-shaped, governed packaging for AI agents

https://agentrc.ai/
1•adeelahmadch•1h ago•0 comments

First Principles of Model Routing

https://try.works/first-principles-of-model-routing
3•try-working•1h ago•0 comments

Instagram running ads promoting child sexual abuse material in India, BBC finds

https://www.bbc.co.uk/news/articles/cvgm4e0316zo
2•haritha-j•1h ago•0 comments

Anthropic moves to close loopholes that allow Chinese access to Claude

https://www.ft.com/content/ad033063-60f9-4c0c-8d8a-9193a83e6f60
3•mmarian•1h ago•3 comments

Show HN: HTTPS://HN-Jobs.com

https://hn-jobs.com
2•freakynit•1h ago•0 comments

Show HN: b10 – for files

https://github.com/wilds-land/b10
1•kindy•1h ago•0 comments

Free tool that finds your #1 digital workflow bottleneck in 5 minutes

https://flashconsult.ctonew.app
2•FlashConsultant•1h ago•0 comments

Nearly 1M people worldwide became millionaires in 2025, UBS report finds

https://www.reuters.com/markets/wealth/nearly-one-million-people-worldwide-became-millionaires-20...
2•littlexsparkee•1h ago•2 comments

Fable will return to Claude subscriptions as soon as capacity allows

https://twitter.com/trq212/status/2072814903170408784
2•mil22•1h ago•3 comments

Last and First Men (1930)

https://gutenberg.org/cache/epub/79003/pg79003-images.html
1•petethomas•1h ago•0 comments