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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!

DeepSeek Plans 'Significant' Price Increase for AI Services

https://www.bloomberg.com/news/articles/2026-08-06/deepseek-plans-significant-price-increase-for-...
1•croes•1m ago•0 comments

New Melania Trump series coming to Amazon Prime after losses for documentary

https://www.euronews.com/culture/2026/08/06/new-melania-trump-series-coming-to-amazon-prime-after...
1•vrganj•1m ago•0 comments

Reflections on software engineering in the age of AI

https://glattetre.me/blog/reflections-on-software-engineering/
1•GOATS-•2m ago•0 comments

Notes On Distance Dialing (1956) [pdf]

https://explodingthephone.com/hoppdocs/nodd1956.pdf
1•colinprince•4m ago•0 comments

Rogue OpenAI models teamed up to break out of their testing environment

https://www.tomshardware.com/tech-industry/artificial-intelligence/rogue-openai-models-behind-unp...
1•sbulaev•4m ago•0 comments

How does it feel if u get hot leads on your dashboard

2•Brikuio•4m ago•0 comments

A Mathematical Theory of the Antilibrary

https://growingbits.dev/fragments/a-mathematical-theory-of-the-antilibrary#3-the-utility-score
1•MexicanYoda•4m ago•0 comments

Google Built a Monopoly on Search Defaults and Will Do It Again in AI

https://spreadprivacy.com/google-appeal-amicus/
4•dotcoma•4m ago•0 comments

Show HN: The Channels SDK – Bring Any Agent to Any Channel (Slack, MS Teams)

https://github.com/CopilotKit/channels-sdk
14•davidmckayv•5m ago•0 comments

Show HN: Silo – S3-compatible object storage, a maintained fork of MinIO

https://silo.pgsty.com
4•Vonng•6m ago•0 comments

Building a Dual V100 AI Workstation for Local LLMs

https://jayakody2000lk.blogspot.com/2026/07/building-dual-v100-ai-workstation-for.html
2•speckx•7m ago•0 comments

The impact of nonlinear child costs on Switzerland's birthrate

https://www.swissinfo.ch/eng/swiss-politics/falling-first-births-and-the-swiss-third-child-dilemm...
1•chobouser•7m ago•0 comments

Digital twins of your business to test your agents

https://sonatalabs.ai/before-you-deploy/
1•matildagh•7m ago•1 comments

Study reveals new role for tau, a top target for Alzheimer's drug development

https://www.statnews.com/2026/08/06/research-finds-how-tau-targets-cells-structure-alzheimers-dru...
2•petethomas•7m ago•0 comments

Show HN: Popcorn – An open-source browser cloud that runs inside TEEs

https://blog.reclaimprotocol.org/posts/why-we-built-popcorn
5•abdulrreshamwal•7m ago•0 comments

Suno offers its AI song on Vynil

https://vinyl.suno.com/
3•hmokiguess•8m ago•0 comments

Thursday Morning and Grothendieck

https://ideal.iroha1203.dev/thursday-morning-and-grothendieck-05c0fec11561
3•iroha1203•8m ago•0 comments

Colourfields

https://quuxplusone.github.io/blog/2026/08/05/colourfields/
1•ibobev•8m ago•0 comments

Cppdashboard.dev – The aggregator of what matters in C++

https://mariusbancila.ro/blog/2026/08/04/cppdashboard-dev-the-aggregator-of-what-matters-in-cpp-r...
2•ibobev•9m ago•0 comments

Show HN: Stop Animated Images from Autoplaying

https://neonglow.studio/gif-control/
1•neonglow•9m ago•1 comments

DARPA Lift Challenge

https://www.darpaliftchallenge.com/watch
1•rkwasny•9m ago•0 comments

We built Pandroid: a small, accessible robot for running AI in the world

https://pantograph.com/hardware
3•agajews•10m ago•1 comments

When a long-running agent crashes, what does recovery mean?

https://runta.com/blog/agents-arent-software/
3•guanlan•10m ago•0 comments

Coinage – every dollar invested until the second you spend it

https://www.coinage.app
3•nandhd•11m ago•4 comments

Show HN: mcp-use v2 rebuilt from scratch for stateless 2026-07-28 MCP spec

https://manufact.com/blog/mcp-use-v2
8•luigipederzani•11m ago•1 comments

I built Picodevil using an LLM

https://blog.vbuckenham.com/i-built-picodevil-using-an-llm/
2•wertyk•11m ago•0 comments

How AI is breaking the British state

https://www.economist.com/leaders/2026/08/06/how-ai-is-breaking-the-british-state
2•edward•11m ago•0 comments

Launch HN: ProvenMetal (YC S26) delivers circuit boards in days instead of weeks

https://provenmetal.com
3•willcarkner•12m ago•0 comments

C++26: Embed

https://www.sandordargo.com/blog/2026/08/05/cpp26-embed
1•ibobev•12m ago•0 comments

Why AI-generated vulnerability patches still require expert human review

https://1password.com/blog/why-ai-generated-patches-still-require-human-review
2•speckx•12m ago•0 comments