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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•7mo 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!

Nvidia allowed to sell its H200 chips to China, the gov takes a 25% cut

https://www.theguardian.com/technology/2025/dec/08/trump-nvidia-ai-chips-china
1•BiteCode_dev•2m ago•0 comments

Thoughts on Team Metrics

https://adrianhesketh.com/2021/05/21/thoughts-on-team-metrics/
1•atomicnature•7m ago•0 comments

David Mermin: What's Wrong with Those Talks? [pdf]

https://aip.brightspotcdn.com/PTO.v45.i11.9_1.online.pdf
1•casparvitch•7m ago•0 comments

SpaceX to pursue 2026 IPO raising above $25B, source says

https://www.reuters.com/business/spacex-pursue-2026-ipo-raising-above-30-billion-bloomberg-news-r...
1•vinni2•8m ago•0 comments

Are the Three Musketeers allergic to muskets?(2014)

https://www.ox.ac.uk/news/arts-blog/are-three-musketeers-allergic-muskets
1•rolph•9m ago•0 comments

A Statistical Error in Estimation of Recommended Dietary Allowance for Vitamin D

https://pmc.ncbi.nlm.nih.gov/articles/PMC4210929/
2•larkinrichards•13m ago•0 comments

There's one big problem with Australia's social media ban

https://news.sky.com/story/the-troubling-lack-of-data-behind-australias-social-media-ban-on-child...
1•austinallegro•14m ago•0 comments

Jagged Alliance 2 Stracciatella

https://ja2-stracciatella.github.io/
1•breppp•14m ago•0 comments

The Artist's Hand: AI Art Pioneers That Existed Before the Boom

https://nettricegaskins.medium.com/the-artists-hand-ai-art-pioneers-that-existed-before-the-boom-...
1•SLHamlet•16m ago•0 comments

What Is Software Design? (1992)

https://www.developerdotstar.com/mag/articles/reeves_design.html
1•classified•21m ago•0 comments

Show HN: EnvMark – Git-based .env management with zero infrastructure

https://www.envmark.tech/
1•grazulex•22m ago•0 comments

Microsoft investing $17.5B in India for AI and cloud, CEO Satya Nadella says

https://apnews.com/article/india-microsoft-ceo-nadella-modi-artificial-intelligence-e1d0f47dea566...
2•whoknowsidont•23m ago•0 comments

AI Is Killing Entry-Level Programming Jobs. But Could It Also Help Save Them?

https://thenewstack.io/ai-is-killing-entry-level-programming-jobs-but-could-it-also-help-save-them/
1•CrankyBear•26m ago•0 comments

Building boring webthings for lazy maintainers

https://overengineer.dev/blog/2025/12/10/boring-webthings/
2•danburzo•27m ago•0 comments

Prompt injection is not SQL injection (it may be worse)

https://www.ncsc.gov.uk/blog-post/prompt-injection-is-not-sql-injection
1•funtech•29m ago•0 comments

How Space Alters Human DNA and What NASA Is Learning from It [video]

https://www.youtube.com/watch?v=zOCKGmiZAgM
2•thunderbong•30m ago•0 comments

Human-to-Human Rabies via Solid Organ Transplantation from a Donor

https://www.cdc.gov/mmwr/volumes/74/wr/mm7439a1.htm
2•mudil•31m ago•0 comments

Curiouser and curiouser: a riddle at the Alice detector

https://www.symmetrymagazine.org/article/curiouser-and-curiouser-a-riddle-at-the-alice-detector?l...
1•elashri•32m ago•0 comments

Typeframe PX-88: Raspberry Pi-powered CyberDeck inspired by a 1980s portable PC

https://liliputing.com/typeframe-px-88-is-a-raspberry-pi-powered-cyberdeck-inspired-by-a-portable...
2•PaulHoule•34m ago•0 comments

Michigan man dies of rabies after receiving kidney from infected donor

https://www.foxnews.com/health/michigan-man-dies-rabies-after-receiving-kidney-from-infected-dono...
4•mudil•34m ago•0 comments

Sandia Supercomputer Built on NextSilicon's Maverick-2 Accelerators

https://www.hpcwire.com/off-the-wire/sandia-unveils-spectra-supercomputer-built-on-nextsilicons-m...
1•eyalitki•35m ago•0 comments

Rust-script – Run Rust files and expressions as scripts

https://rust-script.org/
1•gjvc•35m ago•0 comments

Balanced Ternary Transformers: 93.8% Energy Reduction Using 1965 Soviet Research

https://zenodo.org/records/17875182
2•ZaneHam•37m ago•1 comments

Show HN: RAG-TUI – Visual chunking debugger for RAG pipelines in the terminal

https://pypi.org/project/rag-tui/
1•rasinmuhammed•39m ago•0 comments

Show HN: DskDitto

https://github.com/jdefrancesco/dskDitto
2•jdefr89•42m ago•0 comments

LLM Council – Your Local Multi-Model AI Advisory Board

https://github.com/karpathy/llm-council
2•the-mitr•42m ago•0 comments

SpaceX to Pursue 2026 IPO Raising Far Above $30B

https://www.bloomberg.com/news/articles/2025-12-09/spacex-said-to-pursue-2026-ipo-raising-far-abo...
2•donsupreme•45m ago•0 comments

NPM Revokes Classic Tokens, as OpenJS Warns Maintainers About OIDC Gaps

https://socket.dev/blog/npm-revokes-classic-tokens
2•feross•45m ago•0 comments

Show HN: DskDitto

1•jdefr89•48m ago•0 comments

Pet Artist

https://petartist.ai/en
1•NikkiWang•49m ago•1 comments