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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!

Show HN: Vibsync – One Shared Memory for Claude Code, Cursor and Codex (MCP)

https://vibsync.com/
1•snakaya•9m ago•0 comments

ByteDance is building a 10T model aimed straight at Anthropic [video]

https://www.youtube.com/shorts/2h0zVPRFb5U
2•nitrotechgames•11m ago•0 comments

New Bobby Fingers project after 2 years' wait [video]

https://www.youtube.com/watch?v=vGt7-WnWdhE
2•dmaa•14m ago•0 comments

The Future Encyclopedia of Luddism

https://thereader.mitpress.mit.edu/the-future-encyclopedia-of-luddism/
2•XzetaU8•16m ago•0 comments

Show HN: Presse – a Rust CLI tool to compress and merge PDFs

https://github.com/SimonBure/presse
2•saientifik•20m ago•0 comments

SIMD at Insomniac Games (2015) [pdf]

https://deplinenoise.wordpress.com/wp-content/uploads/2015/03/gdc2015_afredriksson_simd.pdf
2•vinhnx•23m ago•0 comments

Do you think AI governance should be technically rather than paper policy?

2•sangamdas•26m ago•0 comments

Hardware-Rooted Control for Alternative App Stores

https://zenodo.org/records/21839301
2•sangamdas•27m ago•0 comments

WD Bets 8x Bandwidth Beats More Terabytes as 40TB UltraSMR Starts Shipping

https://www.storagereview.com/news/wd-bets-8x-bandwidth-beats-more-terabytes-as-40tb-ultrasmr-sta...
2•rbanffy•28m ago•0 comments

Understanding partial reachability in the Internet core

https://blog.apnic.net/2026/08/07/understanding-partial-reachability-in-the-internet-core/
1•m_montazeri•34m ago•0 comments

Anql – An offline desktop editor for writing, working, and calculating

https://github.com/anqlproject/anql
1•anqluser•37m ago•0 comments

Deathwatch - Archiveteam

https://wiki.archiveteam.org/index.php/Deathwatch
1•frozenseven•40m ago•0 comments

Microsoft Edge is about to lock out older ad blockers, just like Chrome did

https://www.theverge.com/tech/976880/microsoft-edge-extensions-ad-blockers-mv2-mv3
3•eternalreturn•41m ago•1 comments

Apple Introduces Leasing Program for iPhones and Other Devices

https://www.nytimes.com/2026/07/28/technology/apple-leasing-program.html
7•Korwell•41m ago•7 comments

Making an AI bid writer refuse to lie

https://ailucius.com/blog/making-an-ai-bid-writer-refuse-to-lie
25•Lucius-AI•44m ago•0 comments

The ultimate eclipse chase: A Concorde raced against the Moon's shadow

https://arstechnica.com/science/2026/08/the-ultimate-eclipse-chase-a-concorde-raced-against-the-m...
1•pseudolus•44m ago•0 comments

AI is not your biggest cyber threat. Your shitty patching process is

https://0ut3r.space/2026/08/08/ai-is-not-your-biggest-cyber-threat/
1•h0ek•46m ago•1 comments

Show HN: I spent a week building a CLV model and the CMO shrugged

https://nasserboan.github.io/clvkit/
1•nsboan•46m ago•0 comments

New Amazon Data Center Is Set to Have the Most Polluting Power Plant in the U.S.

https://www.nytimes.com/2026/08/08/climate/amazon-data-center-texas-pollution.html
27•sbulaev•50m ago•8 comments

US Military's Cyber Command Unit Grapples with Cluster of Deaths by Suicide

https://www.bloomberg.com/news/articles/2026-08-06/us-military-s-cyber-command-unit-grapples-with...
13•rbanffy•53m ago•2 comments

Concurrency vs. Throughput: why more parallelism can make databases slower

https://planetscale.com/blog/concurrency-vs-throughput-vitess-mysql
1•Shaanveer•53m ago•0 comments

AgentBlog – open-source, AI-native SEO blog

https://agentblog.dev
2•goldkey•55m ago•0 comments

Coca-Cola's personalized cans inconsistently enforcing controversial phrases

https://www.foxbusiness.com/media/coca-cola-personalized-cans-show-inconsistent-enforcement-again...
4•mikhael•56m ago•0 comments

Finance Jobs Just Hit a 4-Year Low

https://www.inc.com/georgia-fearn/finance-jobs-hit-four-year-low-banks-posted-nearly-49000-roles/...
2•01-_-•58m ago•0 comments

Europe's free satellite service just made it easier to track wildfires

https://arstechnica.com/gadgets/2026/08/europes-free-satellite-service-just-made-it-easier-to-tra...
12•01-_-•59m ago•0 comments

FlowChartCharter – A Zero-Hallucination, Fear-Driven GraphRAG Alternative

https://github.com/CharleSpectre13/flowchartcharter
1•charlespectre•59m ago•0 comments

Context Engineering Is a Data Problem

https://davidgasquez.com/context-engineering-is-a-data-problem
1•kalendos•1h ago•0 comments

Show HN : Looking for a cofounder, engineer or video editor in SF?

https://meandi-sf-people.aris-han.chatgpt.site/
1•asd000hh•1h ago•1 comments

Massachusetts prosecutors run their offices on software from the dial-up era

https://nasser.blog/dial-up-justice/
3•Michelangelo11•1h ago•0 comments

Environmentalists Targeted Exxon Mobil. Then Hackers Targeted Them

https://www.nytimes.com/2020/06/09/nyregion/exxon-mobil-hackers-greenpeace.html
2•Djens•1h ago•0 comments