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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!

Tech experts warn against using AI clone of murdered woman's voice in court

https://www.ksl.com/article/51608219/tech-experts-warn-against-using-ai-clone-of-murdered-womans-...
1•jewel•34s ago•0 comments

All Grocery Stores in Canada

https://jacobfilipp.com/grocery-locations/
1•surprisetalk•44s ago•0 comments

The Victim Is the Exploit

https://brothke.medium.com/the-victim-is-the-exploit-5a6d42ba4335
1•benrothke•56s ago•0 comments

The Mitochondrialism of Malware

https://luis.zip/blog/the-mitochondrialism-of-malware/
1•Pentamerous•1m ago•0 comments

Native Model Switching in Codex and Claude

https://statewright.ai/blog/loop-engineering-with-native-model-switching-in-codex-and-claude
1•azurewraith•3m ago•0 comments

NFS AUTH_SYS identity spoofing, still the default in NFSv4

https://opscode.io/posts/nfsv3-authsys-identity-spoofing/
1•malcolmfrazier•3m ago•0 comments

NubirOS AI Business Operating System

https://ncsouth.com/nubiros
1•Jaco_76•5m ago•1 comments

The US Military doesn't have right to repair

https://www.pogo.org/fact-sheets/fact-sheet-the-right-to-repair-for-the-united-states-military
1•yogthos•5m ago•0 comments

Circular financing reaches new heights

https://garymarcus.substack.com/p/breaking-circular-financing-reaches
1•Prof_Sigmund•5m ago•0 comments

Come for Eniac, Stay for Univac and Skeduflo

https://uniqueatpenn.wordpress.com/2026/08/05/come-for-eniac-stay-for-univac-and-skeduflo/
1•cainxinth•6m ago•0 comments

The 2 Days my AI Assistant built a government instead of training a model

https://medium.com/@cmitre/the-two-days-my-ai-assistant-built-a-government-instead-of-training-a-...
1•ceemite•6m ago•0 comments

LinkedIn Sponsor Block: block promoted and suggested posts on your feed

https://github.com/Hogwai/LinkedinSponsorBlock
1•ykthename•7m ago•0 comments

Show HN: Hindcast (search, replay, and resume any Claude Code session on Mac)

https://github.com/karanb192/hindcast
4•karanb192•7m ago•1 comments

The fastest double-to-string algorithm you've never heard of

https://vitaut.net/posts/2026/yy-dtoa/
1•vitaut•7m ago•0 comments

Vibe Coding – Harvard Course

https://my.harvard.edu/course/EDUT564A/2026-Fall/1
2•low_tech_punk•7m ago•1 comments

Show HN: Dbctx – Compile a PostgreSQL database into compact, queryable context

https://github.com/shrsv/dbctx
2•atomicnature•8m ago•0 comments

New Orleans is using AI to triage 911 calls in case of backlog

https://consumerrights.wiki/w/User:Louis/New_Orleans_AI_911_call_triage
2•basilikum•9m ago•0 comments

What we learned operating auth for 900 APIs

https://nango.dev/blog/lessons-from-operating-api-auth-for-900-apis/
1•rguldener•9m ago•0 comments

Having real continuations helped with adding support for core.async on Jolt

https://yogthos.net/posts/2026-08-10-jolt-fibers.html
1•yogthos•9m ago•0 comments

Stealing Reasoning Traces from Proprietary LLM APIs

https://twitter.com/kotekjedi_ml/status/2087147042888114428
1•rzk•11m ago•0 comments

Build wide, validate, then split into small reviewable pieces

https://adapt.com/blog/build-wide-ship-narrow
1•bquaresma•11m ago•1 comments

Please don't replace my dashboard with ai chatbox. Thank you

1•blueshoe•11m ago•0 comments

Gnome Shell Design Dreams – Gnome Shell and Mutter

https://blogs.gnome.org/shell-dev/2026/08/11/gnome-shell-design-dreams/
2•rbanffy•12m ago•0 comments

Enabling Apache ECharts in React for Data Visualization

https://www.taniarascia.com/apache-echarts-react/
1•ibobev•14m ago•0 comments

Boeing to Fold Its Flying-Taxi Venture into Rival Archer Aviation

https://www.wsj.com/business/airlines/boeing-to-fold-its-flying-taxi-venture-into-rival-archer-av...
1•bookofjoe•14m ago•1 comments

The AI takeover of mathematics has begun

https://www.theverge.com/ai-artificial-intelligence/977273/the-ai-takeover-of-mathematics-has-begun
1•brandonb•15m ago•0 comments

Mixture of Experts (Moe): How Transformers Scale Without Activating Everything

https://chizkidd.github.io//2026/08/10/mixture-of-experts/
1•ibobev•15m ago•0 comments

A Noob Learns FFT

https://entropicthoughts.com/fft
2•ibobev•15m ago•0 comments

How Stalled models, missed deadlines, and burnout led to unraveling of DeepMind

https://fortune.com/2026/08/10/how-stalled-models-missed-deadlines-and-staff-burnout-lead-to-the-...
1•theanonymousone•16m ago•0 comments

911 calls answered by AI in New Orleans [video]

https://www.youtube.com/watch?v=psllRvOotwI
1•soraminazuki•16m ago•1 comments