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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!

How to Migrate from Airtable to Obsidian

https://obsidian.md/help/import/airtable
1•skadamat•1m ago•0 comments

Ask HN: What is your biggest bottleneck when developing with agents

1•sakuraiben•2m ago•0 comments

Textdämmerung: On Arday, the EU, and How One Philosophizes with a Chatbot

https://critiqueanddigest.substack.com/p/textdammerung
1•crescit_eundo•3m ago•0 comments

Show HN: Openleetcode – local LeetCode runner where tests live in the repo

https://github.com/therepanic/openleetcode
1•therepanic•4m ago•0 comments

Microsoft to increase Windows OEM license pricing 7-10%

https://www.pcmag.com/news/buying-a-new-pc-a-windows-11-price-hike-could-soon-make-it-more-expensive
1•Rooster61•4m ago•1 comments

Anydoc: Word, PowerPoint, Excel, OpenDocument, RTF, ePub, CSV, PDF to Markdown

https://github.com/firecrawl/anydoc
1•nateb2022•6m ago•0 comments

If the American Dream Is Dead, No One Told the People Who Are Still Chasing It

https://www.robkhenderson.com/p/if-the-american-dream-is-dead-no
1•paulpauper•6m ago•0 comments

Gemini is Cooked, but GCP is Cooking

https://newsletter.semianalysis.com/p/gemini-is-cooked-but-gcp-is-cooking
1•isnotchicago•7m ago•0 comments

NVIDIA & partners to mobilize over $500B of third-party capital for AI buildout

https://nvidianews.nvidia.com/news/nvidia-partners-with-apollo-blackrock-blackstone-brookfield-go...
1•frozenseven•7m ago•0 comments

AI Found a Zoom Takeover Flaw in Fewer Than 20 Prompts

https://ai-updates.net/ai-found-zoom-takeover-flaw-20-prompts/
1•ashurandi•7m ago•0 comments

My Answers to "Prove You Are Worthy to Post About Diets"

https://www.exfatloss.com/p/my-answers-to-prove-you-are-worthy
1•paulpauper•7m ago•0 comments

How much will cybersecurity costs rise?

https://marginalrevolution.com/marginalrevolution/2026/08/how-much-will-cybersecurity-costs-rise....
1•paulpauper•8m ago•0 comments

Compression Is Prediction

https://ngrok.com/blog/compression-is-prediction
3•nikolay•9m ago•0 comments

OpenRouter is a example of the Application layer of AI

https://s-1.vercel.app/posts/why-openrouter-can-be-the-next-great/
1•Altaba•11m ago•0 comments

Next-Token Predictor Is An AI's Job, Not Its Species

https://www.astralcodexten.com/p/next-token-predictor-is-an-ais-job
2•optimalsolver•12m ago•0 comments

Bluesky's active user base is shrinking as its focus expands beyond the app

https://techcrunch.com/2026/08/11/blueskys-active-user-base-is-shrinking-as-its-focus-expands-bey...
5•newusertoday•13m ago•1 comments

The Idea of Immutable Social Media

https://citizendot.github.io/articles/the-idea-of-immutable-social-media/
1•CITIZENDOT•13m ago•1 comments

MAI-Code-1.1-Flash: Better, faster, at a quarter of the cost

https://microsoft.ai/news/mai-code-1-1-flash-br-better-faster-at-a-quarter-of-the-cost/
2•theanonymousone•14m ago•0 comments

Misaligned AIs could use killer robots to take over

https://www.lesswrong.com/posts/9jKhqmFjMzdAvHANr/misaligned-ais-could-use-killer-robots-to-take-...
3•x312•14m ago•0 comments

The Society of Professional Journalists proposes edits to code of ethics for AI

https://www.niemanlab.org/2026/08/the-society-of-professional-journalists-proposes-edits-to-its-c...
1•jaredwiener•15m ago•0 comments

p0rt – see every dev server, port and Docker container in your menu bar

https://p0rt.app
1•ddeunert•16m ago•0 comments

Meter Offers Networking Grants

https://www.meter.com/grants
1•NathaP•19m ago•0 comments

Nvidia Nemotron 3.5 lightning and Nemo Switchyard

https://blogs.nvidia.com/blog/nemotron-lightning-switchyard-rtx-dgx/
19•droidjj•23m ago•3 comments

You Don't Need to Use Cloud AI Switchyard and Nemotron (Level1/Wendell) [video]

https://www.youtube.com/watch?v=-IGB6Avxwgo
2•amlib•24m ago•0 comments

How This 100-Year-Old Company Is Recreating a Lost Neon Color

https://www.wsj.com/finance/investing/how-this-100-year-old-company-is-recreating-a-lost-neon-col...
2•malshe•24m ago•1 comments

GPT 5.6 just solved (2,1)-C1P

https://www.reddit.com/r/accelerate/comments/1vkzfk7/gpt_56_just_solved_21c1p/
2•nadermx•25m ago•0 comments

WhichTok? Comparing Three TikTok Data Acquisition Tools

https://arxiv.org/abs/2608.09917
1•m-hodges•27m ago•0 comments

Between the Matrix and Her

https://kyletsai123.substack.com/p/between-the-matrix-and-her
1•Kyle0939•29m ago•0 comments

People behind Solid Queue, YC, and AnyCable speaking at the same conference?

https://sfruby.com/
1•camimirabal•29m ago•0 comments

The Ultimate Horse

https://worksinprogress.co/issue/the-ultimate-horse/
3•Petiver•29m ago•0 comments