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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: Sol, a fast, powerful music player for macOS, with Subsonic support

https://sol.fulltimefeline.com/
1•fulltimefeline•40s ago•0 comments

Clankers and Data Races

https://www.tbray.org/ongoing/When/202x/2026/09/01/Un-Racing
1•worik•1m ago•0 comments

Show HN: StealthOS, an iOS privacy sandbox with local AI and Tor

https://www.stealthos.app/
1•steffi_oliver•2m ago•0 comments

Explainable deep learning improves human mental models of self-driving cars

https://www.nature.com/articles/s41586-026-10950-5
1•aanet•3m ago•1 comments

Framamèmes

https://framamemes.org/en/
1•rdmuser•3m ago•0 comments

It's getting harder to get hired on HN

https://112358132134.xyz/blog/harder-to-get-hired-on-hn/
1•sdsd•3m ago•1 comments

Persistent Continuity MCP

https://api.willow-intelligence.com/mcp
2•haleykurtz•5m ago•1 comments

Uber to cut 3,300 corporate jobs in management overhaul

https://www.theguardian.com/technology/2026/sep/02/uber-to-cut-3300-corporate-jobs-in-management-...
1•tjwds•5m ago•0 comments

Russia Blocks GrapheneOS Infrastructure, Forcing Two Server Moves

https://reclaimthenet.org/russia-blocks-grapheneos-infrastructure
1•anonymousiam•6m ago•0 comments

Meta releases Muse Spark 1.3

https://www.axios.com/2026/09/02/meta-debuts-muse-spark-13-as-personal-agent-work-continues
2•zkmon•7m ago•1 comments

Digital Sovereignty Is Written in PHP

https://thephp.foundation/blog/2026/09/02/digital-sovereignty-is-written-in-php/
1•taubek•7m ago•0 comments

Bank of America Vice President Fatally Stabbed in Times Square

https://www.forbes.com/sites/antoniopequenoiv/2026/09/01/bank-of-america-vice-president-fatally-s...
3•Varelion•9m ago•0 comments

Perils of the New Armchair Scholarship

https://newsletter.dancohen.org/archive/perils-of-the-new-armchair-scholarship/
5•devonnull•12m ago•0 comments

The Digital Services Act

https://digital-strategy.ec.europa.eu/en/policies/digital-services-act
5•mooreds•12m ago•0 comments

Altman says countries have to use AI: 'I think it is non-negotiable'

https://www.cnbc.com/2026/09/02/g20-innovation-ministerial-live-updates.html
2•oxag3n•13m ago•0 comments

HiddenLayer nabs $100M as enterprises rush to secure their AI deployments

https://techcrunch.com/2026/09/02/hiddenlayer-nabs-100m-as-enterprises-rush-to-secure-their-ai-de...
2•jacobr1•13m ago•0 comments

Beef production in Brazil has been the largest driver of global deforestation

https://ourworldindata.org/beef-production-in-brazil-has-been-the-largest-driver-of-global-defore...
2•stared•14m ago•0 comments

A portable Agent Skill that grounds README claims in repository evidence

https://github.com/pekral/github-readme-generator
2•pekral•15m ago•0 comments

Rewiring the ribosome to translate proteins encoded in its own RNA

https://www.nature.com/articles/s41586-026-10962-1
2•sbulaev•16m ago•0 comments

Show HN: Cinderella – value a half-finished GitHub repo

https://cinderella.fyi/worth
2•toddy_flogsit•16m ago•0 comments

The Death of Physical Media

https://seerofthe.net/the-death-of-physical-media/
6•speckx•18m ago•0 comments

I tried to predict which jobs AI replaces. The useful part is where it's wrong

https://careeratlas.dev/writing/ai-displacement-model
3•DarkyRxfty•18m ago•1 comments

Anthropic Has Some Alignment Problems

https://thezvi.substack.com/p/anthropic-has-some-alignment-problems
5•paulpauper•19m ago•0 comments

I gave my Fable 5 agent a domain, email, and $90 of SOL in a multisig wallet

https://cairnwake.com/
2•the_cosigner•20m ago•0 comments

Selling Software Worldwide from Europe

https://holtwick.de/blog/sell-from-europe
3•viermalbe•20m ago•0 comments

Researchers Warn AI Could Be Changing Us in an Unexpected Way

https://www.sciencealert.com/interacting-with-ai-might-make-you-act-more-robot-like-researchers-warn
3•wjSgoWPm5bWAhXB•20m ago•0 comments

Unified Arabic

https://worksthatwork.com/6/unified-arabic
2•spacebuffer•20m ago•0 comments

The Truth About American Food Safety

https://www.theatlantic.com/health/2026/09/foodborne-illness-recall-cyclospora-summer/688497/
3•paulpauper•20m ago•0 comments

IBM quantum computer solves classically intractable problem in 15 minutes

https://www.sciencedaily.com/releases/2026/08/260829035219.htm
4•taubek•21m ago•0 comments

Humanity has built the records of FATE by accident

https://ariadne.space/2026/09/01/humanity-has-built-the-records.html
4•miniBill•22m ago•1 comments