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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!

"Very Intentional": Steve Eisman Thinks Anthropic Is Hiding Something

https://quoththeraven.substack.com/p/very-intentional-steve-eisman-thinks
1•gradus_ad•4m ago•0 comments

AI text watermarking and quality loss

https://blog.keyvan.net/p/ai-text-watermarking-and-quality
1•danielfoster•5m ago•0 comments

I'm building a public goods funding mechanism. Roast my design

https://agentbook2.whf.bz/t/88/i-m-building-a-public-goods-funding-mechanism-roast-my-design
1•Bluestein•6m ago•0 comments

ChatGPT and Codex usage limits merging

https://help.openai.com/en/articles/20001625-understanding-chatgpt-and-codex-usage-limits
4•Zariel•6m ago•0 comments

Once again, NASA is asking for ideas to rescue Hubble from certain death

https://arstechnica.com/space/2026/10/think-you-can-save-the-hubble-space-telescope-nasa-wants-to...
2•pseudolus•12m ago•0 comments

Mystery of 60-Second Fluctuations in Power Grids Solved

https://www.fz-juelich.de/en/news/archive/press-release/2026/mystery-of-60-second-fluctuations-in...
2•rendx•13m ago•0 comments

Spooky C++

https://www.nablag.com/spooky_cpp
1•nablags•15m ago•1 comments

Show HN: Winch – App Store optimization run by your own coding agent

https://getwinch.app/
2•ziyasal•15m ago•0 comments

Self-reinforcing quality / adopting verification pattern

https://lethain.com/adopting-verification-pattern/
1•gpi•17m ago•0 comments

Show HN: Nvidia RE-USE speech enhancement model running in the browser on WebGPU

https://re-use-demo.geronimo-labs.com
2•g58892881•17m ago•0 comments

He left 28 years ago, now after 36,000 miles Karl Bushby is almost home

https://www.bbc.com/news/articles/cq8rz38jr50go
3•tagawa•17m ago•1 comments

Show HN: Fix 1.0 – Ruby tests written as RFC 2119 specifications

https://fixrb.dev/framework/release/2026/10/31/fix-1.html
2•cyrilllllll•18m ago•0 comments

Download Spotify track URLs for free

https://github.com/gabrielfalcao/spotify-download-tracks-puppeteer
1•gfalcao•23m ago•1 comments

Show HN: InterviewFit: learn the approach, not the answer

https://interviewfit.io/dev/coding/sets/starter-50
2•kavyashreeab•26m ago•0 comments

CVE-2026-98432: blocking the Linux TCP bug until Ubuntu and Red Hat ship a fix

https://getrff.com/blog/cve-2026-98432-linux-tcp-ip-options-block/
2•natebc•36m ago•0 comments

Remote Imaging Protocol (RIP)

https://breakintochat.com/wiki/Remote_Imaging_Protocol_(RIP)
1•Bluestein•37m ago•1 comments

Wrangler – Open-Source macOS Window Manager (Swift, Grid HUD, Auto-Tiling)

https://github.com/mezzie/wrangler
1•richardtngo•37m ago•0 comments

Will AI take your job? You have more agency than you think

https://www.vox.com/technology/508032/ai-jobs-ethan-mollick-co-existence
3•Anon84•41m ago•0 comments

clc-wiki

https://clc-wiki.net/wiki/Main_Page
2•turtleyacht•43m ago•0 comments

Anthropic takes steps to block Claude from reverse-engineering video games

https://mashable.com/tech/anthropic-takes-steps-to-block-video-game-cloning-and-reverse-engineering
31•firesteelrain•47m ago•23 comments

Alternativ to Miro Board

https://wytboard.com
3•herrlen•48m ago•0 comments

Terence Tao: Algebra helps us navigate hard realities by making them abstract

https://www.sciencefriday.com/articles/six-math-essentials-book-excerpt/
3•digital55•50m ago•0 comments

One Durable Object per room, and a rule that stranded a lecture hall

https://davidmashiah.com/notes/the-room-filled-after-i-pressed-start
1•davidmashiah•55m ago•0 comments

Benchma(R)king: Making Chairs with LLMs

https://emergencemagazine.org/essay/benchmarking/
1•CharlesW•57m ago•0 comments

Recycling ANSI Art: Tracing the Origins of BBS Logon Screens

https://games.slashdot.org/story/26/10/31/2038237/recycling-ansi-art-tracing-the-origins-of-bbs-l...
3•MilnerRoute•57m ago•2 comments

The Ludwig Wittgenstein Project

https://wittgensteinproject.org/w/index.php?title=Main_Page
2•gone35•57m ago•0 comments

Distributed Proofreaders

https://www.pgdp.net/c/
6•gone35•59m ago•0 comments

Point-Contact Transistor

https://en.wikipedia.org/wiki/Point-contact_transistor
2•thunderbong•1h ago•0 comments

The Loudest Stories Were Missing from the Map: Learning Topics on Hacker News

https://medium.com/@yastrebovks/the-loudest-stories-were-missing-from-the-map-learning-topics-on-...
1•splimeproject•1h ago•0 comments

Ask HN: Where do you see software engineering careers heading?

1•grandimam•1h ago•1 comments