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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!

Show HN: XHFS starting from 0.6.x is now fully CoW

https://codeberg.org/futureg-lab/xhfs
1•michael-0acf4•1m ago•0 comments

Acer Relaunches Packard Bell with Full New Lifestyle Collection: Tech It Easy

https://news.acer.com/acer-relaunches-packard-bell-with-full-new-lifestyle-collection-to-tech-it-...
1•taubek•3m ago•0 comments

Research acceleration: The view inside OpenAI

https://openai.com/index/research-acceleration-view-inside-openai
1•iamsyr•3m ago•0 comments

Unlimited Free DeepSeek API

https://y-api.bestvirtualgoods.com/
1•freeourdays•4m ago•0 comments

A recruiter who placed creative talent told me the truth

https://twitter.com/Marcellinoposts/status/2096583042315825244
1•bilsbie•4m ago•0 comments

Was Huawei's rise built on crime? A Brooklyn jury will decide

https://www.ft.com/content/9422805f-519c-4b22-839c-cbd7a6464f07
1•sbulaev•4m ago•0 comments

The universe may have been building rocky planets almost from the start

https://www.sciencenews.org/article/universe-rocky-planets-formed-early
2•KinetiNode•10m ago•0 comments

Show HN: A local, Apple Intelligence meeting assistant

https://github.com/rcarmo/swift-smart-prompter
3•rcarmo•10m ago•0 comments

I Feel about AI

https://beza1e1.tuxen.de/ai_feelings.html
5•qznc•11m ago•0 comments

Douglas Hofstadter: Analogy as the Core of Cognition [video]

https://www.youtube.com/watch?v=n8m7lFQ3njk
1•tosh•12m ago•0 comments

Feather Atlas

https://www.fws.gov/lab/featheratlas/identify.html
2•bookofjoe•12m ago•0 comments

AI made it worth building games for our game nights

https://mmazzarolo.com/blog/2026-09-05-ai-has-completely-changed-our-game-nights/
5•mmazzarolo•13m ago•1 comments

Show HN: 188M Hindi encoder, 28B tokens, 8K context, 1× RTX 4090

https://github.com/kkkamur07/indic-modernBERT
1•kkkamur•14m ago•0 comments

Release 0.12.10 · astral-sh/uv

https://github.com/astral-sh/uv/releases/tag/0.12.10
1•kyisaiah47•14m ago•0 comments

The Garage Where Silicon Valley Began

https://www.coolidgereview.com/articles/garage-silicon-valley
1•RickJWagner•16m ago•1 comments

Dirty Coding Tricks, part 3

https://dalerank.github.io/en/articles/dirty-coding-tricks-3.html
2•birdculture•17m ago•0 comments

Recreating Minecraft Is Not a Benchmark

https://kuber.studio/blog/Reflections/Recreating-Minecraft-is-Not-a-Benchmark
1•kuberwastaken•20m ago•0 comments

Mirror of your own self – on AI sycophancy and getting what we asked for

https://substack.com/app-link/post
2•yenniejun111•21m ago•0 comments

Artificial Intelligence as a Judge Advocate's Force Multiplier

https://www.lineofdeparture.army.mil/Journals/Army-Lawyer/Archive/Issue-2-2026/AI-as-Force-Multip...
1•everybodyknows•23m ago•0 comments

Computer Science Achievement and Writing Skills Predict Vibe Coding Proficiency

https://arxiv.org/abs/2603.14133
1•iamflimflam1•23m ago•0 comments

Speculative Programmatic Tool Calling

https://alexzhang13.github.io/blog/2026/spec-ptc/
1•gmays•26m ago•0 comments

Over 60k arrested for communication offences as trivial as viewing TikTok videos

https://www.gbnews.com/news/free-speech-row-more-than-60000-arrested-communications-offences
2•josephcsible•28m ago•0 comments

Americans are vibe-coding trading algorithms

https://www.wsj.com/tech/ai/the-ai-shift-turning-everyday-investors-into-mini-quant-funds-ebe4d45f
4•simonpure•29m ago•0 comments

A cross-chain DEX for atomic swaps, without middleman

https://basicswapdex.com/
2•dRK-U•29m ago•0 comments

Nutrient-supplemented carbonized aerogels for oil adsorption and biodegradation

https://www.sciencedirect.com/science/article/pii/S2666821126003583
1•wslh•33m ago•0 comments

Ryoku – A hand-built Omarchy alternative

https://ryoku.dev/
3•hkalbasi•34m ago•0 comments

Show HN: Kadō – open-source habit tracker, with non-binary habit score, for iOS

https://github.com/scastiel/kado
13•scastiel•37m ago•5 comments

A/I shuts down – Stay human

https://keepitfree.ai/announcements/a/i-shuts-down-stay-human/
110•captainmuon•37m ago•14 comments

From Microservices to Microcells

https://zozo123.github.io/microservices-to-microcells/
2•zozo123-IB-IL2•40m ago•0 comments

Show HN: Truffle – Ask questions about your codebase in plain English, in Slack

https://asktruffle.com/
1•TwoTrickPony•41m ago•0 comments