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!

Supersonic Trebuchet [video]

https://www.youtube.com/watch?v=Co57SfcT-h0
1•CharlesW•15s ago•0 comments

Pg_stat_ch, a Postgres extension to export every metric to ClickHouse

https://github.com/ClickHouse/pg_stat_ch
1•saisrirampur•20s ago•0 comments

Simplifying and Refactoring Introductory Calculus

https://arxiv.org/abs/1811.03459
1•E-Reverance•3m ago•0 comments

The Most Famous AI Writing Tic Is Also the Most Mysterious

https://www.theatlantic.com/technology/2026/07/ai-chatbot-writing-tic-negative-parallelism/687892/
1•paulpauper•4m ago•0 comments

I made the fastest open source CAD renderer in the world

https://twitter.com/i/status/2088075553077072088
2•StefanGolas•7m ago•1 comments

The Erdős–Simonovits degeneracy conjecture is false for all R ≥ 2

https://twitter.com/ctjlewis/status/2088332537231704186
1•ctjlewis•7m ago•0 comments

Show HN: Bloxwap – The Easiest Way to Trade

https://bloxwap.com/trade/HYPE
2•joeblau•12m ago•0 comments

Corgi kills short-lived website that ranked its female employees

https://sf.gazetteer.co/corgi-kills-short-lived-website-that-ranked-its-female-employees
3•randycupertino•17m ago•1 comments

Mobile Adapter GB

https://en.wikipedia.org/wiki/Mobile_Adapter_GB
2•LaserDiscMan•18m ago•0 comments

USS John F. Kennedy Begins Sea Trials in High-Stakes Test of US Naval Power

https://defencesecurityasia.com/en/uss-john-f-kennedy-cvn-79-sea-trials-us-navy-supercarrier/
2•starkparker•21m ago•0 comments

What eating like RFK Jr. does to your colon, according to a gastro doctor

https://www.msn.com/en-us/health/diseases-and-conditions/here-s-what-eating-like-rfk-jr-does-to-y...
1•petethomas•22m ago•0 comments

Anton Chekhov played at love most of his life

https://commonreader.wustl.edu/winning-and-losing-at-the-great-game-of-intimacy/
2•lermontov•24m ago•0 comments

Bundesliga's 50+1 ownership rule permissible under antitrust laws

https://www.reuters.com/sports/soccer/bundesligas-501-ownership-rule-permissible-under-antitrust-...
3•starkparker•26m ago•0 comments

Why Aging May Be a Program, Not a Breakdown

https://www.quantamagazine.org/why-aging-may-be-a-program-not-a-breakdown-20260814/
2•jnord•29m ago•0 comments

Baking a Model: A Metaphor for LLM Training

https://newsletter.kentbeck.com/p/baking-a-model
1•KentBeck•31m ago•0 comments

Amazon reinstates binding arbitration, bars class-action lawsuits

https://www.reuters.com/legal/government/amazon-reinstates-binding-arbitration-bars-class-action-...
4•nmeagent•35m ago•1 comments

They Rig Clinical Trials – Leaving Millions Sick, Broke, and Gaslit

https://www.midwesterndoctor.com/p/how-they-rig-clinical-trials-leaving
3•bilsbie•35m ago•0 comments

Synthetic Market

https://www.kenwea.com
2•Myzura•35m ago•1 comments

Jane Street suffers $15B hit after meltdown at Situational Awareness

https://www.ft.com/content/47dd5308-dd17-404a-a615-61046defd697
28•bobstax•37m ago•3 comments

Flownie – Open and Visual Data Workflow Platform with AI Agent Assistance

https://flownie.com/
2•savhascelik•40m ago•0 comments

Post-mortem after Namecheap/RadiusDC service outage

https://www.namecheap.com/blog/namecheap-service-outage-update/
3•lschueller•56m ago•0 comments

Towards a Risk Assessment of Malicious Skill Files in Coding Agents

https://arxiv.org/abs/2608.05223
2•Beko2210•59m ago•0 comments

Talos AI Agent Super Secure

https://github.com/talos-kernel/talos
1•kurdman007•59m ago•0 comments

Learning Augmented Heuristics

https://systems.seas.harvard.edu/blog/learning-augmented-heuristics/
1•1a1a11a•1h ago•0 comments

Brands Suddenly Care About Reddit. Redditors Don't Return the Feeling.

https://www.wsj.com/cmo-today/brands-suddenly-care-about-reddit-redditors-dont-return-the-feeling...
4•bookofjoe•1h ago•1 comments

Qwen 3.8 27B 4-bit designs an animated dolphin riding a bicycle SVG

https://twitter.com/1littlecoder/status/2088399639628431831
1•amrrs•1h ago•0 comments

How the World Was Wired

https://www.economist.com/culture/2026/08/12/how-the-world-was-wired
1•andsoitis•1h ago•0 comments

Show HN: Macsomnia – close your MacBook lid while keeping long jobs alive

https://github.com/iamdadzilla/Macsomnia
1•dadzilla•1h ago•0 comments

The case for overhauling American science

https://www.economist.com/by-invitation/2026/08/13/the-case-for-overhauling-american-science
14•andsoitis•1h ago•3 comments

Show HN: Kvcachescope – Why Nvidia-smi is blind to vLLM KV cache leaks

https://github.com/brian-mwirigi/kvcachescope
1•nesh23•1h ago•0 comments