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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•9mo 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!

Inventing the Lisa User Interface

https://archive.org/details/Inventing_the_LISA_User_Interface
1•rbanffy•1m ago•0 comments

Ensuring Smartphones Have Not Been Tampered With

https://publishing.aip.org/publications/latest-content/ensuring-smartphones-have-not-been-tampere...
1•giuliomagnifico•1m ago•0 comments

Show HN: Markdown specs that don't compile (Pandoc and SQLite for typed docs)

https://github.com/SpecIR/SpecCompiler
1•cclacerda13•1m ago•0 comments

Show HN: SentientTube – The YouTube for AI Agents

https://www.sentienttube.com/
1•Narciss•2m ago•0 comments

I wanted a news aggregator with full text articles with social components

https://tessera.news/
1•chestdrop•2m ago•1 comments

Oslo 360 degrees in 2 terapixels

https://holmenkollen360.com/
1•sgt•2m ago•0 comments

Three Basic Distributions

https://anydice.com/articles/three-basic-distributions/
1•Torwald•2m ago•0 comments

All New adobaRo – an execution-focused AI for global content workflows

1•adobaro•2m ago•0 comments

A Minimal GPT Implementation as a Learning Project

https://github.com/b0bleet/teenypt
1•ralphlaur•4m ago•0 comments

Good Vibes, Bad Vendors

https://werd.io/good-vibes-bad-vendors/
1•benwerd•5m ago•0 comments

KDE Plasma 6.6 isn't forcing systemd but the arguments rage on

https://www.theregister.com/2026/02/24/kde_plasma_66/
1•Bender•5m ago•0 comments

Anthropic just released a mobile version of Claude Code called Remote Control

https://venturebeat.com/orchestration/anthropic-just-released-a-mobile-version-of-claude-code-cal...
2•msolujic•6m ago•0 comments

OpenAI says Chinese cops used ChatGPT to track smear ops against opponents

https://www.theregister.com/2026/02/25/chinese_law_enforcement_chatgpt_abuse/
2•Bender•8m ago•0 comments

Materials DB from Figshare, meant to augment HTTPS://openmaterialsdb.se/

https://materials-db.fly.dev/
1•argentum47•9m ago•0 comments

Boozy chimps fail urine test, confirm hotly debated theory

https://arstechnica.com/science/2026/02/boozy-chimps-fail-urine-test-confirm-hotly-debated-theory/
1•Bender•9m ago•0 comments

Great RSS Feeds That Are Too Noisy to Read Manually

https://emschwartz.me/great-rss-feeds-that-are-too-noisy-to-read-manually/
1•emschwartz•10m ago•0 comments

The whole economy pays the Amazon tax

https://pluralistic.net/2026/02/25/most-favored-nation/#price-fixing
4•MindGods•11m ago•1 comments

Unshielded: How the Police Can Become Touchable (2024)

https://harvardlawreview.org/print/vol-137/unshielded-how-the-police-can-become-touchable/
1•robtherobber•11m ago•0 comments

Tests Are the New Moat

https://saewitz.com/tests-are-the-new-moat
2•switz•11m ago•0 comments

Are IDEs outdated in the age of autonomous AI? [video]

https://www.youtube.com/watch?v=Fe8QzM1vuks
1•Ideabile•11m ago•1 comments

Show HN: Sustn, Turn unused Claude Code tokens into PRs that clean your codebase

https://www.sustn.app/
1•flyingsky•12m ago•0 comments

Show HN: Simple and robust key-value flat-file data storage library

https://github.com/aaviator42/StorX
1•aaviator42•13m ago•0 comments

Show HN: LedgerMind – true zero-touch autonomous memory for AI agents

https://github.com/sl4m3/ledgermind
1•sl4m3•13m ago•0 comments

Show HN: Codified decades of domain expertise into open source agent skills

https://github.com/ai-evos/agent-skills
1•urav•15m ago•0 comments

What I learned while trying to build a production-ready nearest neighbor system

https://github.com/thatipamula-jashwanth/smart-knn
1•Jashwanth01•19m ago•2 comments

Digital Embassy – Beijing

https://digitalembassy.net/
1•samuel246•20m ago•0 comments

Super-Diffusion of Ergodicity

https://arxiv.org/abs/1606.08693
1•northlondoner•20m ago•1 comments

Detect and Respond to Threats 9x Faster: Fidelis Security

https://fidelissecurity.com/
1•fidelissecurity•22m ago•0 comments

From hackathon to company-wide AI assistant

https://engineering.remote.com/blog/sherlock/
2•egze•22m ago•0 comments

Show HN: AegisBPF – Deterministic Runtime Enforcement via eBPF LSM

https://github.com/ErenAri/Aegis-BPF
1•erenari•23m ago•0 comments