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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•4mo 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!

Deskflow in Action: How I Share My Mac Keyboard and Mouse with Linux

https://wasi0013.com/2025/09/18/deskflow-in-action-how-i-share-my-mac-keyboard-and-mouse-with-linux/
2•furkansahin•2m ago•0 comments

Flight attendants have gone 50 years without ground pay–here's the reason

https://theconversation.com/flight-attendants-have-gone-50-years-without-ground-pay-heres-the-rea...
1•PaulHoule•3m ago•0 comments

The Rise of Emotional Intelligence Apps: Equanima's Innovative Approach

https://equanima.io/the-rise-of-emotional-intelligence-apps-equanimas-innovative-approach/
1•radustoia•3m ago•0 comments

Claude Muzak: Elevator music for your Claude Code tasks

https://github.com/mikeindustries/Claude-Muzak
1•ingve•3m ago•0 comments

Nvidia and Intel to Develop AI Infrastructure and Personal Computing Products

https://nvidianews.nvidia.com/news/nvidia-and-intel-to-develop-ai-infrastructure-and-personal-com...
2•pr337h4m•6m ago•0 comments

The Pat Metheny Method: Not Fusion, Not Jazz, Not Rock (1979)

https://insheepsclothinghifi.com/the-pat-metheny-method-1979/
1•XzetaU8•7m ago•0 comments

Nvidia bets big on Intel with $5B stake and chip partnership

https://www.reuters.com/world/asia-pacific/nvidia-bets-big-intel-with-5-billion-stake-chip-partne...
1•ckastner•8m ago•0 comments

Show HN: XPlant – Track, optimize and iterate your plants like code

https://xplant.shmaplex.com
1•shmaplex•9m ago•0 comments

Signy: Signed URLs for Small Devices

https://github.com/golioth/signy
1•hasheddan•10m ago•0 comments

The Billionaire Trump Supporter Who Will Soon Own the News

https://www.nytimes.com/2025/09/18/opinion/larry-ellison-paramount-cbs-tiktok.html
2•ripe•10m ago•0 comments

RISC-V Needs Secure 'Wheels': The MCU Initiator-Side Perspective

https://arxiv.org/abs/2410.09839
2•fork-bomber•15m ago•0 comments

Arch Linux AUR package repository is being DDoSed

https://status.archlinux.org/
1•lenova•16m ago•2 comments

Nvidia to Invest $5B in Intel

https://www.ft.com/content/be8d4c0c-66ff-4dfd-9b43-af6c0b290ada
1•mmarian•17m ago•0 comments

Whose Punctuation Is More Human: Yours or A.I.'S?

https://www.nytimes.com/2025/09/18/magazine/chatgpt-dash-hyphen-writing-communication.html
1•tonez•17m ago•1 comments

Why the Events in Gaza Are Not "Genocide"

https://www.ajc.org/news/5-reasons-why-the-events-in-gaza-are-not-genocide
1•spacelaserfan•21m ago•0 comments

Literate Programming

https://en.wikipedia.org/wiki/Literate_programming
2•busfahrer•22m ago•0 comments

What is the recipe for human progress?

https://capx.co/what-is-the-recipe-for-human-progress
1•marcsidwell•24m ago•0 comments

Proprietary sector indexes across tech and beyond

https://multiples.vc/sector-indexes
1•ashvardanian•24m ago•0 comments

Mirror Life Worries

https://www.science.org/content/blog-post/mirror-life-worries
1•etiam•25m ago•0 comments

The Challenges of Distributed Systems

https://newsletter.francofernando.com/p/the-challenges-of-distributed-systems
1•ibobev•26m ago•0 comments

American Chemical Society: do not expect CO2 capture breakthrough to save us

https://www.youtube.com/watch?v=dWJi8pRBW4E
2•gsf_emergency_2•29m ago•0 comments

Kmart broke privacy laws by using facial recognition, commissioner finds

https://www.abc.net.au/news/2025-09-18/kmart-facial-recognition-technology-privacy-commissioner/1...
1•maxeda•29m ago•0 comments

RDMA-Powered Distributed Cache for Fast AI Training and Inference

https://github.com/blackbird-io/blackbird
15•hackercat01012•30m ago•0 comments

The Constexpr Debugger

https://blog.jetbrains.com/clion/2025/09/introducing-constexpr-debugger/
2•ashvardanian•30m ago•0 comments

Unbundling Adobe

https://blog.tryresearchly.com/articles/unbundling-adobe-ai
1•leo_researchly•32m ago•0 comments

China's largest chipmaker testing first homegrown immersion DUV litho tool

https://www.tomshardware.com/tech-industry/semiconductors/chinas-largest-foundry-testing-first-do...
2•dataminer•35m ago•0 comments

Nvidia buys $5B in Intel stock in seismic deal

https://www.tomshardware.com/pc-components/cpus/nvidia-and-intel-announce-jointly-developed-intel...
18•stycznik•37m ago•5 comments

JLR hack: Supply chain staff told to apply for Universal Credit, claims union

https://www.autocar.co.uk/car-news/new-cars/jlr-hack-supply-chain-staff-told-apply-universal-cred...
2•breve•39m ago•0 comments

Toys can tell us a lot about the future of tech

https://www.theregister.com/2025/09/18/toys_and_tech_futures/
1•LorenDB•40m ago•0 comments

South Africa's Small Businesses Are Overtaxed. Its Gotten Out of Hand [video]

https://www.youtube.com/watch?v=4OiU3lgw_-A
1•flojo•42m ago•0 comments