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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!

Best-Effort Extent-Same, a btrfs dedupe agent

https://github.com/Zygo/bees
1•modinfo•13s ago•0 comments

Show HN: Just Dashboard, an open-source VPS management dashboard

https://github.com/JustDashboard/Just-Dashboard
1•Wayy01•3m ago•0 comments

Cryptocurrencies slide to two-month lows after US midterms

https://www.reuters.com/business/cryptocurrencies-slide-two-month-lows-after-us-midterms-2026-11-08/
1•1vuio0pswjnm7•12m ago•1 comments

Slavdom Unearthed: Marian Wawrzeniecki's Neopagan Paintings (1891–1923)

https://publicdomainreview.org/collection/marian-wawrzeniecki/
1•lermontov•13m ago•0 comments

Pay per pre-configured GPU hour or per token for open-source LLM inference?

1•yiro13•18m ago•0 comments

Praxia [video]

https://www.youtube.com/watch?v=vxB-jh96kVY
1•tasshin•20m ago•1 comments

A Critique of GPUI

https://blog.zortax.de/posts/a-critique-of-gpui
2•ByteAtATime•20m ago•0 comments

New Zealand children can't hold a pencil properly – new study

https://www.rnz.co.nz/life/relationships/family/new-zealand-children-can-t-hold-a-pencil-properly...
1•colinprince•22m ago•0 comments

P2P model hosting and inference WebGPU,libp2p,IPFS

https://metaversejs.github.io/peercompute/inference/
1•gnarbarian•25m ago•1 comments

Show HN: I got laid off and built a competitor website change tracker

https://lifeadminpilot.com/tool
1•ff114514•27m ago•0 comments

Human Tamagotchis: The Future of Health

https://briankitano.com/essays/patient-sandbox/
1•bkitano19•32m ago•0 comments

PlusOS: OS for the Macintosh Plus and SE

https://github.com/g91/PlusOS
2•phendrenad2•36m ago•1 comments

AML Cycle 2 results are approaching: What should agent memory benchmarks reveal?

https://twitter.com/AgentMemoryL/status/2118704959344493029
3•IreneAI•36m ago•0 comments

Anthropic, stop silently degrading models. You will undermine trust

https://www.reddit.com/r/ClaudeCode/comments/1xqtslm/rant_anthropic_stop_silently_degrading_models/
2•cft•36m ago•0 comments

Official Wanting Data Centers on Public Lands Has >10M Invested in AI Industry

https://www.propublica.org/article/burgum-public-land-data-centers-investments
2•Jimmc414•40m ago•0 comments

Show HN: Mindfries- AI Interviewer based on real eng skill not on L**tC*de

https://company.mindfries.com/login
2•Gseries00•41m ago•0 comments

A 24-hour fast triggers a microbiome repair response in the gut

https://www.pnas.org/doi/10.1073/pnas.2529215123
3•Jimmc414•47m ago•1 comments

Type in Any Task. Get the Best AI Model for It

https://taskrouter.com/tasks
2•robmay•51m ago•0 comments

The Rust I Wanted Had No Future (2023)

https://web.archive.org/web/20230629213449/https://graydon2.dreamwidth.org/307291.html
2•xiaoyu2006•51m ago•1 comments

The Qlobe: Rotating Quine (2010)

http://mamememo.blogspot.com/2010/09/qlobe.html
5•niceguitars•56m ago•0 comments

Build a repeatable PHP-to-Java migration engine with Kiro

https://aws.amazon.com/blogs/machine-learning/build-a-repeatable-php-to-java-migration-engine-wit...
1•fksubs•56m ago•0 comments

A 100KB SVG that does real-time 3D PCA and convex hulls on CMS open data

https://zenodo.org/records/24068477
1•zwanemakki•56m ago•0 comments

Unremarkable things we made in 2026

https://www.neilchen.co/blog/things2026
1•NWChen•58m ago•0 comments

Everything to automate and make your device,like aPC and phone,smart as a robot

1•Drfoxi•58m ago•0 comments

Royal 240: The Beginning of the End for the Typewriter

https://nicole.express/2026/cutting-edge-technology.html
1•nicole_express•1h ago•0 comments

Asahi Linux Drops MIT, Goes Full GPL After AI Used to Steal Unreleased Code

https://itsfoss.com/news/asahi-linux-drops-mit-for-gpl/
6•majorchord•1h ago•4 comments

F/OSS Comics #14: BSD Unix, Part 4 – The Formation of CSRG

https://fosscomics.com/posts/14.%20BSD%20Unix%20Part%204%20-%20The%20Formation%20of%20CSRG/
1•joonehur•1h ago•0 comments

Why Doctors in Thailand Fear KFC

https://www.nytimes.com/2026/11/04/world/asia/thailand-kfc-curse-doctors.html
3•bookofjoe•1h ago•0 comments

Show HN: A web based client for the 1995 virtual world WorldsAway

https://worldsaway.app/
2•brianhama•1h ago•0 comments

Elevation of Serum Prestin in Patients with Tinnitus

https://pubmed.ncbi.nlm.nih.gov/41398620/
2•hbarka•1h ago•0 comments