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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•8mo 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!

'Dilbert' creator Scott Adams dies at 68 after prostate cancer battle

https://www.usatoday.com/story/entertainment/celebrities/2026/01/13/scott-adams-dead-dilbert-crea...
2•schmuckonwheels•1m ago•0 comments

Even Linus Torvalds Is Vibe Coding Now

https://linux.slashdot.org/story/26/01/12/2311234/even-linus-torvalds-is-vibe-coding-now
1•speckx•3m ago•0 comments

Evil Charts

https://evilcharts.com/
1•pentagrama•5m ago•0 comments

OpenAir Collective – The 2026 Carbon Removal Challenge

https://openaircollective.com/crc/
1•manchoz•6m ago•0 comments

Chinese localization Issue: command line arguments are translated

https://github.com/microsoft/WSL/issues/4111
1•throw_await•6m ago•0 comments

Sounds on the Web

https://www.userinterface.wiki/sounds-on-the-web
1•pentagrama•7m ago•0 comments

Protocol, libraries for sending, receiving OpenTelemetry data using Apache Arrow

https://github.com/open-telemetry/otel-arrow
1•tosh•8m ago•0 comments

Show HN: JotBird – publish Markdown documents with shareable URLs

https://www.jotbird.com
1•mcone•8m ago•0 comments

Save your spot at FOSDEM 2026: Rockchip, Tyr, GStreamer ML and more

https://www.collabora.com/news-and-blog/news-and-events/fosdem-2026-rockchip-tyr-gstreamer-more.html
1•losgehts•9m ago•0 comments

JavaScript array methods to simplify your code

https://markodenic.tech/10-javascript-array-methods-to-simplify-your-code/
1•speckx•9m ago•0 comments

Good Components

https://www.goodcomponents.io/
1•pentagrama•11m ago•0 comments

War No. 81-Q (1928)

https://www.gutenberg.org/cache/epub/74098/pg74098.txt
1•non-•12m ago•0 comments

Can paleontologists pinpoint the dawn of the dinosaurs?

https://www.pnas.org/post/multimedia/can-paleontologists-pinpoint-dawn-dinosaurs
1•bikenaga•13m ago•1 comments

Even Linus Torvalds is trying his hand at vibe coding (but just a little)

https://arstechnica.com/ai/2026/01/hobby-github-repo-shows-linus-torvalds-vibe-codes-sometimes/
2•nosianu•14m ago•1 comments

Common Software Project Conflicts and How to Navigate Them

https://www.stackbuilders.com/common-software-project-conflicts-and-how-to-navigate-them/
1•StackBuilders•14m ago•1 comments

Google Universal Commerce Protocol (UCP) Guide

https://developers.google.com/merchant/ucp
1•ianrahman•14m ago•0 comments

Calcpercent.net – Simple percentage calculator I built

https://calcpercent.net/
1•firstshow•16m ago•1 comments

Show HN: Debug your AI application in web browser

https://github.com/yiouli/pixie-sdk-py
1•yol•17m ago•0 comments

Show HN: SQG – Compile SQL (SQLite,DuckDB) to TypeScript/Java Code

https://sqg.dev/
1•uwemaurer•17m ago•0 comments

NetDocuments Completes Acquisition of EDOCS from OpenText

https://www.netdocuments.com/company-news/netdocuments-acquires-opentext-edocs-expands-global-reach/
1•juliusceasar•18m ago•1 comments

Solving Factorio with Terraform [video]

https://www.youtube.com/watch?v=uU06vKlCNXk
2•bananabiscuit•19m ago•0 comments

Show HN: EOS-Energy Optimization System by Nexura

https://eos-hn.vercel.app/
1•irfan_sh01•20m ago•0 comments

Are Two Heads Better Than One?

https://eieio.games/blog/two-heads-arent-better-than-one/
3•evakhoury•20m ago•0 comments

Past Tense: a language for programs never to be run again

https://github.com/rottytooth/PastTense
1•eso_eso•20m ago•0 comments

War Department Launches AI Acceleration Strategy to Secure AI Dominance

https://www.war.gov/News/Releases/Release/Article/4376420/war-department-launches-ai-acceleration...
2•SilverElfin•21m ago•2 comments

Spec Driven Development: When Architecture Becomes Executable – InfoQ

https://www.infoq.com/articles/spec-driven-development/
1•rbanffy•21m ago•0 comments

Windscribe partners with Kagi and others to create a Privacy-Focused Alliance

https://windscribe.com/blog/windscribe-partnerships/
2•wasmitnetzen•23m ago•1 comments

Taiwan Issues Arrest Warrant for OnePlus CEO for China Hires

https://www.bloomberg.com/news/articles/2026-01-13/taiwan-issues-arrest-warrant-for-ceo-of-oneplu...
4•MallocVoidstar•23m ago•1 comments

I built a free URL shortener with QR codes and tracking – looking for feedback

https://mnml.ink/
1•johnvonoakland•25m ago•1 comments

Is "AI vibe coding" making prototyping worse inside real companies?

4•arapkuliev•25m ago•0 comments