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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•10mo 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: Sheet Ninja – Google Sheets as a CRUD Back End for Vibe Coders

https://sheetninja.io
1•sxa001•54s ago•0 comments

KDE has implemented the new Wayland session restore protocol

https://www.neowin.net/news/kde-has-implemented-the-new-wayland-session-restore-protocol/
1•bundie•8m ago•0 comments

Cloud-free Sentinel-2 Images of German administrative districts

https://gitlab.opencode.de/lgln/sentinel2l
1•slow_typist•11m ago•0 comments

Logical Intelligence: The First Energy Based Model for Critical Systems

https://logicalintelligence.com/
1•doener•11m ago•0 comments

Just released 3 examples for my native HTML/CSS UI for windows, feedback welcome

https://github.com/M4iKZ/mUI-showcase
1•M4iKZ•14m ago•0 comments

Bigoish: Test the empirical computational complexity of Rust algorithms

https://docs.rs/bigoish/latest/bigoish/
1•birdculture•17m ago•0 comments

Why free stuff makes us irrational

https://thehustle.co/why-free-stuff-makes-us-irrational
1•Anon84•18m ago•0 comments

Ramen: Relational Agentic Memory and Emergent Network

https://github.com/cachopin/ramen
1•cachopin•19m ago•0 comments

Terminal Trove

https://terminaltrove.com/explore/
2•esher•27m ago•0 comments

Will we have AGI by 2030? Are the new Formula 1 rules good? – Analyze both sides

https://99helpers.com/tools/both-sides-ai
2•nickk81•27m ago•1 comments

Show HN: Think Fu – Metacognition as a service

https://thinkfu.org
2•georgestrakhov•29m ago•0 comments

Show HN: Voxi.fm – Listen to articles that don't sound like a robot reading

https://www.voxi.fm
2•k1m•30m ago•0 comments

Coinbase brings token-backed down payments to housing market

https://www.reuters.com/technology/crypto-home-coinbase-brings-token-backed-down-payments-housing...
3•geox•31m ago•1 comments

Show HN: TurboQuant for vector search – 2-4 bit compression

https://github.com/RyanCodrai/py-turboquant
2•justsomeguy1996•32m ago•1 comments

Tracking (Expert/Influential) Predictions about AI

https://www.lesswrong.com/posts/oHSGHxhsbxN72BZ4C/tracking-expert-influential-predictions-about-ai
2•joozio•41m ago•0 comments

LinkedIn Lost in Translation: What CEOs Mean

https://www.youtube.com/watch?v=VakDdroSfCA
1•frag•46m ago•0 comments

In pictures: The changing shape of mission control

https://www.bbc.com/future/article/20260327-from-mercury-to-artemis-the-evolution-of-mission-control
1•reconnecting•52m ago•0 comments

Social Diffusion Defense

https://juliusthimm.com/
1•andytratt•53m ago•0 comments

The Greatest Deal Google Ever Made: Buying DeepMind

https://www.wsj.com/tech/ai/deepmind-google-demis-hassabis-5bd6de54
4•Anon84•53m ago•2 comments

Show HN: Interactive sandbox with boxes, conveyor belts and pneumatic tubes

https://codepen.io/Ma5a/full/yyaXzoB
1•masahito•53m ago•0 comments

PH4NTXM: RAM-Only OS, Per-session Identity and Network Personality Mutation.

https://github.com/PH4NTXMOFFICIAL/PH4NTXM
1•PH4NTXMOFFICIAL•57m ago•0 comments

Local-first AI knowledge layer. Extract architecture, query from any AI tools

https://github.com/josephgoksu/taskwing
1•josephgoksu•58m ago•0 comments

Anduril Flashlight Firmware and FSM Flashlight UI Toolkit

https://github.com/ToyKeeper/anduril
1•mrb•59m ago•0 comments

Background Jobs in Go with Asynq and Valkey

https://josephgoksu.com/blog/background-jobs-in-go-asynq-valkey/
1•josephgoksu•1h ago•0 comments

Onpush – free tool to create and maintain docs from repos using CLI Agents

https://onpush.dev
1•GNK_Kawba•1h ago•0 comments

OpenAI investor says AI requires an income tax overhaul

https://www.ft.com/content/7de1d3c5-0d0c-46b1-b2b7-dbf6f5226069
4•ciconia•1h ago•1 comments

Vector Meson Dominance

https://johncarlosbaez.wordpress.com/2026/03/29/vector-meson-dominance/
1•chmaynard•1h ago•0 comments

Millions Are Hooked on This Show Where Sexy Fruits Cheat

https://www.wsj.com/arts-culture/television/fruit-love-island-tiktok-ai-dating-show-45219f6a
1•newusertoday•1h ago•1 comments

Two Bots Walk into a Bar

https://www.raymondcamden.com/2026/03/25/two-bots-walk-into-a-bar
1•ColinWright•1h ago•0 comments

Voxtral TTS – Text to Speech Generator

https://voxtral-tts.net
3•MintNow•1h ago•0 comments