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!

Show HN: Parlel – professional network where agents can read anything

https://parlel.com/
1•Dheerajiitr•53s ago•0 comments

Following the Trend

https://www.onthetower.lol
1•vreddhi•56s ago•0 comments

Show HN: OpenPost, an open-source alternative to Buffer, CapCut, and Canva

https://github.com/getopenpost/openpost
1•kraktoos•2m ago•0 comments

Show HN: Type.com – codex and Claude Code in the cloud for non-tech use cases

1•krashidov•2m ago•0 comments

Andreessen/Thiel-backed defense startup opens U.S. missile factory

https://www.cnbc.com/2026/09/09/defense-tech-covenant-anthem-missile.html
1•cramer4next•3m ago•0 comments

Show HN: Persistent Jupyter kernel execution and live output streaming in VSCode

https://github.com/rnoro/tithon
1•rnoro_•3m ago•0 comments

Built by Designers

https://builtbydesigners.com/
1•handfuloflight•3m ago•0 comments

Moby-Dick and the Indefinite Sublime: On facing the white page

https://yalereview.org/article/tom-mccarthy-indefinite-sublime
1•benbreen•3m ago•0 comments

Useful collection of UI component libraries for major web frameworks

https://htmlrev.com/ui-libraries.html
1•devluc•4m ago•0 comments

O'Reilly Editor Review Skill

https://github.com/jakthom/skills/tree/main/writing/oreilly-editor-review
1•mejakethomas•4m ago•0 comments

Sextortion Has Entered the Family Group Chat

https://www.wsj.com/tech/personal-tech/sextortion-scams-family-group-chats-537e8369
1•ceejayoz•5m ago•1 comments

Meta Ran Paid Ads with Child Sexual Abuse Imagery

https://www.techtransparencyproject.org/articles/meta-ran-hundreds-of-paid-ads-with-child-sexual-...
1•DeepLogin•5m ago•0 comments

Show HN: Watch Skill/DeepWatch agents can see screen/video

https://github.com/oxbshw/watch-skill
1•sayedev•5m ago•0 comments

Liesegang Rings

https://chillphysicsenjoyer.substack.com/p/liesegang-rings
1•surprisetalk•6m ago•0 comments

Clay raises $115M Series D

https://www.clay.com/blog/series-d
1•FinnLobsien•6m ago•0 comments

Code-Mixing on Sesame Street: Dawn of the Adversarial Polyglots

https://arxiv.org/abs/2103.09593
1•StatsAreFun•7m ago•0 comments

CUDA Rust: Two Tracks for Writing GPU Kernels

https://developer.nvidia.com/blog/introducing-cuda-rust-two-tracks-for-writing-gpu-kernels/
1•Jhsto•8m ago•0 comments

The History of Forgotten Chips

https://www.youtube.com/watch?v=7Cd4NQu1OG0
1•zoenolan•9m ago•0 comments

One woman's Tesla was remotely controlled by an abusive ex-partner

https://www.theguardian.com/australia-news/2026/sep/09/how-one-womans-tesla-was-remotely-controll...
4•gradschool•10m ago•0 comments

Medicare spending to account for 44% of the federal deficit in 10 years

https://www.axios.com/2026/09/09/medicare-drug-coverage-spending-increases
2•brandonb•10m ago•0 comments

UK Government to force tech companies to verify age of users to protect children

https://www.computerweekly.com/news/366649187/Government-to-force-tech-companies-to-verify-age-of...
3•Flere-Imsaho•10m ago•0 comments

Copying login keychain no longer works on Secure Enclave Macs with macOS Tahoe

https://derflounder.wordpress.com/2026/09/08/manually-copying-login-keychain-files-from-one-mac-t...
3•lapcat•12m ago•1 comments

Google to invest record $15B in AI infrastructure in the 'Texas of Europe'

https://www.cnbc.com/2026/09/09/google-finland-ai-infrastructure-investment.html
1•cramer4next•14m ago•0 comments

Kafka and Redpanda TUI

https://github.com/sonirico/readpanda
2•sonirico•14m ago•0 comments

Huawei's τ Chip Was Supposed to Melt?

https://arxiv.org/abs/2609.04287
1•Liftyee•14m ago•0 comments

CouchEditor: Pipeline photo editor that runs natively on Web

https://couch-editor.com/
2•travelalbumsai•16m ago•0 comments

Show HN: Maxxwell – The IDE for Optimal Tokenmaxxing

https://maxxwell.dev/
5•mserrano258•16m ago•1 comments

Bongard Problems and the blurry line between pattern matching and reasoning

https://matthodges.com/posts/2026-08-19-bongard-problems/
1•m-hodges•16m ago•0 comments

Rumor: Apple Watch will use microphoneto generate daily AI recaps

https://9to5mac.com/2026/09/09/the-new-apple-watch-will-use-microphone-and-other-sensors-to-gener...
1•brandonb•17m ago•0 comments

TSTY Compact Transformer Substation from China Manufacturer – TSTY

https://www.tstynice.com/TSTY-Compact-Transformer-Substation-pd542209948.html?gbraid=0AAAABAD_vHb...
1•gssngsngdh•17m ago•0 comments