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!

French bank Credit Mutuel Arkea counting losses from cyberattack

https://www.reuters.com/technology/french-bank-credit-mutuel-arkea-hit-by-cyberattack-2026-11-04/
1•gvieri•41s ago•0 comments

AI poisoning: are we using AI, or is AI using us?

https://blog.sparkcan.com/posts/ai-poisoning/
1•bstefanovic•57s ago•0 comments

Edward Hopper's Iconic Painting, "Nighthawks

https://lithub.com/the-story-behind-edward-hoppers-iconic-painting-nighthawks/
1•prismatic•2m ago•0 comments

Fedora 45 is finally finished and fit

https://www.theregister.com/os-platforms/2026/11/04/fedora-45-is-finally-finished-and-fit/5307631
1•rbanffy•3m ago•0 comments

Pcbang.io

https://pcbang.io/
1•zergrush•4m ago•0 comments

Markdown viewer that supports images and latex folmulas

https://github.com/vincenzoaurelio/Platessa
2•vincenzoaurelio•12m ago•0 comments

Why Data Centres Will Change the World and Bankrupt Their Builders [video]

https://www.youtube.com/watch?v=GY5YyPLfqp0
1•dcl•12m ago•1 comments

Nvidia store pulls RTX 5080 following RTX 5090 removal, prices rise to 2.2X MSRP

https://www.tomshardware.com/pc-components/gpus/nvidia-store-quietly-pulls-the-rtx-5080-following...
1•akyuu•12m ago•0 comments

Kashmir's vanishing potato pits: generations of knowledge may be buried forever

https://www.theguardian.com/environment/2026/nov/04/kashmir-potato-pits-vanishing-indigenous-know...
2•bookofjoe•13m ago•0 comments

Puremail and Pure Writer for Haiku

https://pureemail.net/haiku.html
2•rguiscard•14m ago•0 comments

GarlicSignage – open-source Digital Signage Software

https://github.com/garlic-signage
3•thunderbong•19m ago•0 comments

AI triggers PCB shortage for PC makers as order books full until 2030, costs 12x

https://www.tomshardware.com/pc-components/ai-demand-triggers-massive-pcb-shortage-for-pc-makers-...
2•akyuu•20m ago•0 comments

Background subagents in Claude Code now use less of your usage limit

https://twitter.com/ClaudeDevs/status/2118063143167693011
1•mfiguiere•22m ago•0 comments

Raye Mihretab project ice cream

https://docs.google.com/document/d/1N3FX6ER-BMV7mYje-iX4u2Ra6FN9oVwPjxBRRQPNCIk/edit?userstoinvit...
2•bahgihayle•23m ago•0 comments

Successful People (2013)

https://blog.samaltman.com/successful-people
5•epestr•24m ago•4 comments

YouTuber discovers aircraft noise trick that can geolocate videos to within 100M

https://www.techradar.com/computing/cyber-security/youtuber-discovers-aircraft-noise-trick-that-c...
4•pain_perdu•25m ago•0 comments

You Can Build a Database, and how I'm doing it

https://charlesfonseca.substack.com/p/you-can-build-a-database-heres-how
2•barddoo•26m ago•0 comments

GMLK – An open-source Roblox Luau module loader and utility library

https://github.com/Faruk-Icen/GMLK
1•FarukIcen•28m ago•0 comments

I give to charity – but never to people on the street. Is that wrong?

https://www.vox.com/future-perfect/372519/charity-giving-effective-altruism-mutual-aid-homeless
3•herbertl•28m ago•0 comments

Russian Army Losses in Ukraine

https://index.minfin.com.ua/russian-invading/casualties/
1•scapecast•28m ago•0 comments

How to have 1,500 people for dinner

https://morefullyalive.substack.com/p/how-to-have-1500-people-for-dinner
2•herbertl•28m ago•0 comments

Trust Is a Micro-Habit

https://nik.art/trust-is-a-micro-habit/
2•herbertl•29m ago•0 comments

Open-source reference implementation of the Agent Name Service (ANS)

https://github.com/agentnameservice/ans
1•mooreds•30m ago•0 comments

EU/UK Android Devs need to put phone number on Play Store Listing

https://support.google.com/googleplay/android-developer/answer/17594752?hl=en
4•gadders•34m ago•0 comments

Building Barista: Postgres, Embeddings, and Jev

https://read.thecoder.cafe/p/barista-1
3•0xKelsey•35m ago•0 comments

Show HN: Using GPUs for other bs than AI – important prime record for the geeks

https://github.com/djuk8/beacon/
1•mvojvoda•41m ago•1 comments

Clawd's Bar opens - a speakeasy for AI agents and a new kind of service with it

https://x.com/clawds_bar
1•boos_clawdsbar•42m ago•0 comments

It Gives Great Demo

https://blog.jim-nielsen.com/2026/it-gives-great-demo/
3•aray07•43m ago•0 comments

Xenbleed: Xen Guest to Dom0 Escape

https://codeant.ai/security-research/xenbleed-a-grant-copy-cache-bug-that-reaches-dom0-memory
1•markasoftware•43m ago•0 comments

Out Of Office – a daily game for you to escape the 9 to 5

https://outofofficegame.com
2•iambenc•44m ago•1 comments