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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!

Monero Inflation Checker – FCMP++

https://www.reddit.com/r/Monero/comments/1w3hcos/monero_inflation_checker_fcmp/
1•Cider9986•1m ago•0 comments

Show HN: *Another* marketplace for returns, overstock, and second-life inventory

https://mintshelf.com/blog/mint-shelf-1-0-launch
1•potatopotaro•3m ago•0 comments

'Freakish Little Animals': Ferret Owners Gather to Celebrate Their Charms

https://www.nytimes.com/2026/08/31/us/ferret-buckeye-bash.html
1•fortran77•3m ago•1 comments

Nestflix

https://nestflix.fun/
1•l3x•5m ago•0 comments

How Does Quantum Mechanics Work?

https://explainers.blog/posts/how-does-quantum-mechanics-work/
1•worldvoyageur•9m ago•0 comments

How A Telescope Mirror Creates an Image [video]

https://www.youtube.com/watch?v=n5YpxFiJf7k
1•nativeit•12m ago•0 comments

TimesFM-3: zero-shot foundation model for multivariate forecasting

http://goog.gle/4x5WGpD
2•nateb2022•13m ago•0 comments

Sony, Warner sue Anthropic, alleging "blatant theft" of intellectual property

https://www.axios.com/2026/08/29/anthropic-sony-warner-music-copyright
3•cdrnsf•15m ago•0 comments

Mongodump Tasks Automate and Schedule MongoDB Backups

https://visualeaf.com/blog/mongodump-tasks-automate-and-schedule-mongodb-backups/
2•fan_drew•15m ago•0 comments

Don't Be Ahead

https://www.guidavid.com/writing/dont-be-ahead
1•gdss•15m ago•0 comments

Show HN: LogiCola 3

https://logicola.org
1•kotk•15m ago•1 comments

SecretSpec 0.20: Git, Docker, inline specs, and five new providers

https://secretspec.dev/blog/secretspec-0-20-git-docker-inline-specs-and-five-new-providers/
1•domenkozar•16m ago•0 comments

Show HN: Sidework – 100% free site for side hustle, live in 2 min mobile/desktop

https://www.my-sidework.com/
1•daltonlcarr•17m ago•0 comments

Causality beyond the Reichenbach principle: the degrees-of-freedom method

https://www.nature.com/articles/s41598-026-66455-8
1•bryanrasmussen•18m ago•0 comments

Canaries in the Gold Mine: Early Productivity Gains from AI

https://www.nber.org/papers/w35684
1•nilen•18m ago•0 comments

Show HN: Silent Fail, get an email when your n8n workflow stops running

https://silentfailapp.com
1•kdeosingh•20m ago•0 comments

Show HN: An agent that finds you jobs with just your resume

https://applymyresume.com
1•alirsgp•21m ago•3 comments

Show HN: Guess the AI model from its web design

https://raq.com/blog/can-you-spot-ai-web-design/quiz
2•hawke•21m ago•0 comments

Bank of England chief warns new AI models threaten global financial stability

https://www.cnbc.com/2026/08/31/bailey-frontier-ai-financial-stability-risk.html
2•TMWNN•21m ago•0 comments

AI Agents Are Fundamentally Restructuring the Software Paradigm

https://arxiv.org/abs/2606.05608
2•speckx•24m ago•0 comments

AI Is an Anti-Primary Source Machine

https://www.hnn.us/article/ai-is-an-anti-primary-source-machine
1•prismatic•24m ago•0 comments

Ask HN: Could tariffs be a good thing?

1•silexia•25m ago•2 comments

Reddit mod used AI to hack Star Wars Galaxies emulator over a 14-year-old grudge

https://massivelyop.com/2026/08/29/a-reddit-mod-used-ai-to-hack-a-star-wars-galaxies-emulator-ove...
1•speckx•26m ago•0 comments

"Zlibrary my beloved": Anthropic staff chats extolling piracy cited in Sony suit

https://arstechnica.com/tech-policy/2026/08/zlibrary-my-beloved-anthropic-staff-chats-extolling-p...
2•hadrien01•26m ago•0 comments

Vitela. A free, type-safe alternative to Overleaf

https://vitela.artificialfallibility.com/
1•camilochs•27m ago•0 comments

DeepSeek v4 Flash Vision Exp is now open-weight

https://huggingface.co/deepseek-ai/DeepSeek-V4-Flash-Vision-Exp
1•florianherrengt•28m ago•0 comments

The Domain Software Engineer

https://patent.dev/the-domain-software-engineer/
1•funktionslust•28m ago•0 comments

PDE Role Explorer

https://dit-2026-app.john-04e.workers.dev/page26
1•whiteboardr•29m ago•0 comments

Merit, Hire engineers based on simulated work

https://applymerit.com
1•jonas_kgomo•32m ago•0 comments

Show HN: Kiso – Publish one OKF knowledge base for humans and AI agents

https://github.com/oak-invest/kiso
2•straumat•33m ago•0 comments