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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!

Why human syntax breaks LLMs (and how to fix agentic coding)

1•aslang•25s ago•0 comments

Catenary – A spatial canvas IDE for AI coding agents

https://thecatenary.app
1•GiorgioNicolas•53s ago•0 comments

Aurora: AI gateway fork for multi-IP setups, 55x faster than LiteLLM

https://github.com/entitybtw/aurora
1•entitybtw•59s ago•0 comments

A Doctor Sued 700 Patients for Debts; 81 Were Arrested. Now He's a Senator

https://www.nytimes.com/2026/09/08/us/politics/roger-marshall-obgyn-doctor-debts.html
1•elo2000•1m ago•0 comments

Show HN: DriveSync – fast Git-styled Google Drive sync CLI

https://github.com/scaleninja/drivesync
2•rohityadavcloud•3m ago•0 comments

Key activities for sustainable engineering team

https://blog.incrementalforgetting.tech/p/key-activities-for-sustainable-engineering
1•fagnerbrack•3m ago•0 comments

Serica: Single-binary web search and article extraction in Rust

https://github.com/walkthestars/serica
1•walkthestars•4m ago•0 comments

Intel surpasses one million High-NA EUV wafers processed

https://www.tomshardware.com/tech-industry/semiconductors/intel-surpasses-one-million-high-na-euv...
1•rbanffy•4m ago•0 comments

Four ways my unattended agents reported success while doing nothing

https://github.com/PegasidsAI/silent-failures
1•maxadams•5m ago•0 comments

Mistral bags €3B to build Europe's sovereign AI champion

https://www.theregister.com/ai-and-ml/2026/09/08/mistral-bags-3b-to-build-europes-sovereign-ai-ch...
1•backlit4034•6m ago•0 comments

Scan Before You Clone

https://www.scanrepo.dev/
1•chha•6m ago•0 comments

All the microbes you can't have

https://worksinprogress.co/issue/all-the-microbes-you-cant-have/
1•mhb•9m ago•0 comments

Research acceleration: The view inside OpenAI

https://simonwillison.net/2026/Sep/6/research-acceleration-the-view-inside-openai/
2•kyisaiah47•12m ago•1 comments

Mysterious x86 CPU Has APX, X86S Where Intel Left Off for Legacy-Free x86

https://www.phoronix.com/news/x86-CPU-With-APX-x86S
3•rbanffy•12m ago•0 comments

Ireland's First Electric Car

https://www.rte.ie/archives/2016/0905/814353-irelands-first-electrically-powered-car/
1•austinallegro•12m ago•0 comments

How to Make a Control Plane for Coding Agents in 2026

https://abhishek.it/blog/how-to-make-a-control-plane-for-coding-agents-2026
3•darkbatman•14m ago•0 comments

Canonical Data Mesh: scaling data governance

https://canonical.com/blog/canonical-data-mesh-scaling-data-governance
1•alikelkawi•14m ago•0 comments

Show HN: Malinois – Open-Source iOS Unattended-Device Tamper Detection

https://github.com/john-comptonemail-com/malinois
2•jcomp•15m ago•0 comments

Show HN: SiteDownload: export Webflow and Framer sites with CMS content intact

https://www.sitedownload.app
1•happyyeti•15m ago•0 comments

Show HN: Ebitengine v2.10.0 Released (A 2D Game Engine for Go)

https://ebitengine.org/en/blog/v2.10.0.html
1•hajimehoshi•15m ago•1 comments

Home Broadband Is 5G's Surprise Killer App

https://spectrum.ieee.org/fixed-wireless-access
1•rbanffy•16m ago•0 comments

How to Build an API-First Engine for 100k+ Digital Product Passports

https://dppflash.de/
1•bergstreiser•16m ago•0 comments

Show HN: Gremlord – Run Claude Code on any model, with a budget

https://gremlord.com/
1•maorbril•17m ago•0 comments

2025 Pisa Results

https://www.oecd.org/en/publications/pisa-2025-results-volume-i_73451bc5-en.html
1•alphabetatango•17m ago•0 comments

OpenAI hires Chuck Schumer's daughter as Big Tech cozies up to Democrats

https://nypost.com/2026/09/07/business/openai-hires-chuck-schumers-daughter-as-big-tech-cozies-up...
1•bhouston•17m ago•2 comments

The Dark Forest and Generative AI

https://maggieappleton.com/ai-dark-forest
1•cmpit•18m ago•0 comments

Show HN: Inspyry – AI Based SVG Generator Platform

https://inspyry.com
1•drjzlyan•19m ago•0 comments

Show HN: Notifyd – notification queue on Postgres alone (Rust, MCP, no UI)

https://rmzlb.github.io/notifyd/articles/postgres-queue-what-skip-locked-does-not-give-you.html
1•rmzlb•19m ago•0 comments

My So-Called Alpha School

https://buildcognitiveresonance.substack.com/p/special-report-my-so-called-alpha
2•mkeeter•20m ago•0 comments

GitHub CI outages in EU due to status 401 on public repos

https://github.com/orgs/community/discussions/206581
2•baalimago•21m ago•0 comments