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!

Dragonfly 2.0: more performance for Redis and Memcached replacement

https://www.phoronix.com/news/Dragonfly-2.0-Released
1•joshcsimmons•50s ago•0 comments

AI and the Destruction of the Creative Commons

https://www.chesterwisniewski.com/post/2026-09-13-ai-is-destroying-the-creative-commons/
1•rakel_rakel•2m ago•0 comments

Show HN: WTF > Auto-check what your coding agent changed

https://github.com/LinusInnovator/wtf
1•Linusinnovator•4m ago•0 comments

Joe Shipman proves marked ruler and compass solves the general quintic

2•jjgreen•12m ago•0 comments

PDF Forgeries Are Surprisingly Rare (2022)

https://gwern.net/blog/2022/pdf-forgery
2•1317•12m ago•0 comments

Hyperbolic Navigation

https://en.wikipedia.org/wiki/Hyperbolic_navigation
1•Eridanus2•16m ago•0 comments

Away Goals Rule

https://en.wikipedia.org/wiki/Away_goals_rule
1•chistev•17m ago•0 comments

Enterprise Cyber Risk Management

https://andersenlab.com/services/cybersecurity-risk-management
1•andersen_lab•23m ago•0 comments

Be Careful with Your Select * Queries

https://notesonsystems.com/articles/why-im-done-with-select-star
1•theanonymousone•28m ago•1 comments

TeaonherChecker

https://teaonher.org
1•thefirstname322•28m ago•0 comments

Leaping Sun Dogs (2016) [video]

https://www.youtube.com/watch?v=KPPaGmtuHCY
1•joebig•31m ago•0 comments

Jev is the fastest-adopted model in AI Gateway history

https://vercel.com/blog/ai-gateway-jev-model-launch
1•flashbrew•31m ago•1 comments

A font that reads what you wrote

https://rohanadwankar.github.io/posts/semfont.html
1•RohanAdwankar•32m ago•1 comments

A deep dive into Jev, TypeSafe's System One model

https://flaviocopes.com/jev/
1•sts153•32m ago•0 comments

CoyoPedal – Full-Size Neural Amp Modeler Captures on an ESP32-S3

https://github.com/dashersw/coyopedal
1•arbayi•32m ago•0 comments

I'm so bad at billiards that I ended up in the hyperbolic plane [video]

https://www.youtube.com/watch?v=kL9BTbIGxLg
1•vismit2000•32m ago•0 comments

MIT Just Proved LLMs Will Stop Getting Smarter, and Money Won't Fix It [video]

https://www.youtube.com/watch?v=6xQ8LQfkBg4
1•bArray•36m ago•0 comments

Show HN: Delightful Cells – reliable AI batch processing for spreadsheets

https://delightfulcells.com
1•sumtsui•38m ago•1 comments

Clawptcha: Reverse Captcha

https://clawptcha.com/
1•Kotlopou•43m ago•0 comments

Neutron Radiation, Emission and Scattering (Neutron Chemistry)

https://www.ossila.com/pages/neutron-radiation
1•peter_d_sherman•44m ago•0 comments

Drop-in Django app to serve a decent LLM-ready documentation site

https://mdjango.chesselink.com/
3•fluxmatix•51m ago•1 comments

I built an extension that hides your personal information from AI

https://github.com/arikchakma/opencloak
2•arikchakma•55m ago•0 comments

Show HN: I-server: Hide server using ICMP reflection/Destination Unreachable

https://github.com/hajoon22/i-server
2•hajoon22•59m ago•0 comments

Benchmarking Wild vs. Mold

https://davidlattimore.github.io/posts/2026/09/18/benchmarking-wild-vs-mold.html
6•birdculture•1h ago•0 comments

Microsoft agentically ports Copilot runtime to Rust for $120K

https://www.theregister.com/devops/2026/09/18/microsoft-agentically-ports-copilot-runtime-to-rust...
5•pjmlp•1h ago•0 comments

Why China is pushing back on US warnings over rapid AI development

https://www.theguardian.com/world/2026/sep/20/why-china-is-pushing-back-on-us-warnings-over-rapid...
5•chrisjj•1h ago•0 comments

Boston to Calcutta Ice Trade Began with One Shipment

https://curiowire.com/article/556
3•thunderbong•1h ago•0 comments

Show HN: Book recommendations with live library availability

https://leafle.nanosheep.net
3•kidnoodle•1h ago•3 comments

Show HN: I built Hacker News alternative and scale to 11,000 users

https://founderstoday.org/
2•dreylord•1h ago•0 comments

Don't Be Nice

https://roe.dev/blog/dont-be-nice
6•edent•1h ago•2 comments