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!

Reddit is going logged-in only. Blame Google AI Overviews

https://www.businessinsider.com/reddits-logged-in-google-ai-overviews-traffic-2026-10
1•lakeviewterrace•13s ago•0 comments

Unauthenticated RCE vulnerability against ClickHouse Server

https://cve.now/CVE-2026-116366
1•dkgs•1m ago•0 comments

Intel to buy quantum firm Classiq for about $2.3B

https://www.reuters.com/technology/intel-buy-quantum-firm-classiq-about-23-billion-bloomberg-news...
3•wslh•2m ago•0 comments

Slotwatch – watch Postgres replication slots from the terminal

https://github.com/Dem1241/slotwatch
2•ish1907•3m ago•0 comments

SpaceX No longer needs NASA

https://arstechnica.com/space/2026/10/spacex-no-longer-needs-nasa-and-thats-a-problem-for-america...
3•amosj•4m ago•0 comments

Write All the Things

https://asbedb.dev/musings/write-all-the-things
2•etvoila•5m ago•0 comments

Embraer's Atech aims to double in size by 2030 with drone traffic control

https://www.bloomberglinea.com.br/negocios/atech-da-embraer-quer-dobrar-de-tamanho-ate-2030-com-c...
2•dvaplima•5m ago•0 comments

Programming at Light Speed: Building the Gravity Query Engine

https://pgrust.com/blog/programming-at-light-speed/
2•poly2it•5m ago•0 comments

When Causal Is Not Enough in Drug Develompent

https://www.jacc.org/doi/10.1016/j.jacc.2026.09.005
1•brandonb•8m ago•0 comments

Product Managers aren't safe either

https://lucaskostka.com/posts/ai-challenges-more-than-devs
1•greatNespresso•8m ago•0 comments

You Can See Everything That Billy Evans Watched on 2x Speed

https://www.nytimes.com/2026/10/30/upshot/billy-evans-you-can-see-everything.html
1•tysone•10m ago•0 comments

Rian Johnson's Ideal iPhone Camera App

https://twitter.com/rianjohnson/status/2115436064458621189
1•spenceratkin•11m ago•0 comments

Fun Little Educational Game

https://www.metergraph.dev/arbitrage/
1•VasiliyRad•12m ago•0 comments

Show HN: Automatic deduction of FlashAttention kernel from ~25 lines of SQL

https://github.com/xqlsystems/xarray-sql/blob/6debe2495dcb4e8fac20ab97df5b89baae2a31a6/benchmarks...
2•alxmrs•13m ago•0 comments

An Arrogant Way of Killing (2016)

https://magazine.atavist.com/2016/an-arrogant-way-of-killing
2•firefax•14m ago•0 comments

Trump Phone Durability Test – Its worse than we thought (JerryRigEverything) [video]

https://www.youtube.com/watch?v=5O-vCJW1b8g
1•MasterYoda•16m ago•0 comments

PostgreSQL 19 Running Behind Schedule Due to AI/LLM Burden

https://www.phoronix.com/news/PostgreSQL-19-Late
1•dboon•17m ago•0 comments

I'm in 'You Can See Everything.' Here's My Side of the Story

https://www.nytimes.com/2026/10/30/opinion/you-can-see-everything-elizabeth-holmes-nathan-fielder...
2•brandonb•17m ago•0 comments

HTTP/HTTPS Debug Proxy

https://novawire.dev
1•vewello•20m ago•0 comments

Talk Without Talking

https://subvocal.company/
2•jbredeche•20m ago•0 comments

Show HN: Cerebellum – small model on the robot, big model for what it can't undo

https://github.com/cerebellum-labs/cerebellum
2•dminglv•21m ago•0 comments

FomoMate – Group plans with In or Out, no "Maybe

https://www.fomomate.com
1•mrunalmodi•22m ago•0 comments

Agents repurposed anti-itch drugs to neutralize the Bundibugyo ebolavirus

https://muni.bio/research/hits-from-ebolathon
2•4714•22m ago•1 comments

Jules Verne's Lost Novel

https://blue-continuum.com/verne-paris
3•dnetesn•28m ago•0 comments

EasyRE-Agent – an AI agent that solves crackmes and checks its own answers

https://github.com/wojtas99/EasyRE-Agent
1•krawczorek•28m ago•0 comments

Cold Triggers a Hidden Molecular Pathway That Extends Lifespan

https://www.sciencealert.com/cold-triggers-a-hidden-molecular-pathway-that-extends-lifespan-study...
7•dxs•30m ago•0 comments

Tecolot – A high-performance native terminal for macOS

https://tecolot.com/
1•simjue•30m ago•2 comments

HN Best Comments Scare-Quotes edition

https://hackertrain.future-secured.com/?offline_scare_quotes=1
1•adrianwaj•30m ago•0 comments

Pilot-wave hydrodynamics (Quantum phenomena in macroscopic hydrodynamic systems)

http://thales.mit.edu/bush/index.php/4801-2/
1•peter_d_sherman•30m ago•0 comments

Remember When Scientists Invented a Robot Tail to Improve Human Balance?

https://www.sciencealert.com/remember-when-scientists-invented-a-robot-tail-to-improve-our-human-...
2•dxs•31m ago•0 comments