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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!

Review: Neil Postman's 'Amusing Ourselves to Death' (2016)

https://www.refsmmat.com/posts/2016-01-23-amusing-ourselves-to-death.html
1•jruohonen•2m ago•0 comments

Fundraiser to Bolster Monero's Security Through Automated Testing

https://old.reddit.com/r/Monero/comments/1v8exyy/fundraiser_to_bolster_moneros_security_through/
1•lunarthegrey•4m ago•0 comments

Venture Mindset

https://herbertlui.net/venture-mindset/
1•herbertl•6m ago•0 comments

Show HN: Edge Drop – The clipboard manager Windows 11 should have shipped with

https://github.com/Deepender25/Edge-Drop
2•Deepender25•7m ago•0 comments

Vakonomic Fluids

https://arxiv.org/abs/2607.18312
2•E-Reverance•8m ago•0 comments

Gemini Distillation Service

https://docs.cloud.google.com/gemini-enterprise-agent-platform/models/tuning/distillation
2•asawfofor•8m ago•1 comments

Show HN: Gemma 4 26B A4B running on an iPhone 17 Pro via model paging

https://noemaai.com/
1•armin976•11m ago•0 comments

China Begins Making Homegrown DUV Lithography Chipmaking Tools

https://www.reuters.com/world/china/china-begins-making-homegrown-duv-chipmaking-tools-informatio...
2•karakoram•13m ago•0 comments

Trusty Boot Key, a Ventoy Alternative

https://codeberg.org/aol/trusty-boot-key
1•mixmastamyk•15m ago•0 comments

Private Credit Backstop, How Private Equity Socializes Risk Through Insurers [pdf]

https://papers.ssrn.com/sol3/Delivery.cfm/7152239.pdf
1•senshan•15m ago•0 comments

Internet is no longer accessible?

4•cute_boi•16m ago•3 comments

The Forensic Audit of Project 545

https://www.bitchute.com/video/9r7XJ8ykLrhs/
1•untiledsource•20m ago•0 comments

Families in London temporary housing told they cant use inbuilt air conditioning

https://www.theguardian.com/society/2026/jul/27/homeless-families-london-temporary-housing-air-co...
2•stuaxo•20m ago•0 comments

Norway Salmon

https://www.abc.net.au/news/2026-07-28/how-norway-s-salmon-industry-became-a-global-behemoth/1069...
1•CHB0403085482•22m ago•0 comments

Tlbic: A Local Basic Income Proposal Built to Protect Human Dignity (v9.0)

https://drive.google.com/file/d/10YGI27bT6Vj00LlJuKwoaSYzG-cXNbwF/view?usp=drive_link
3•michikawa59•23m ago•1 comments

Gamma-ray pulsations reveal extreme 3.2-ms pulsar 3,900 light-years away

https://phys.org/news/2026-07-gamma-ray-pulsations-reveal-extreme.html
1•wglb•24m ago•1 comments

Residential Proxies Are a National Security Threat

https://jacob.gold/posts/residential-proxies-are-a-national-security-threat/
1•joshbetz•25m ago•0 comments

First Genesis Mission Projects Selected to Boost AI-Driven Scientific Discovery

https://www.energy.gov/articles/secretary-energy-chris-wright-announces-first-genesis-mission-pro...
1•gmays•29m ago•0 comments

Show HN: RL bandits pick coding agent's context,Grok 4.5 out-fixes Fable 5

https://github.com/VinvAI/VinvAI
2•sohamac•32m ago•0 comments

PostgreSQL's MVCC is bad. So is everyone else's

https://boringsql.com/posts/mvcc-bad-bad/
1•soheilpro•36m ago•0 comments

X Money officially launches in the US

https://9to5mac.com/2026/07/27/x-money-apple-wallet/
1•slymax•39m ago•0 comments

Abandoned Navy base costs taxpayers $340k pa for internet no one uses

https://taskandpurpose.com/news/abandoned-navy-base-internet-service/
2•Gaishan•44m ago•0 comments

Lilian Weng Resigns from Thinking Machines Lab

https://digg.com/tech/yhf6ei1b
1•doppp•48m ago•0 comments

Big Tech's Money Men Don't Care About the Backlash

https://www.politico.com/news/magazine/2026/07/26/ai-super-pac-operatives-profile-01008227
2•reasonableklout•51m ago•0 comments

Show HN: _done – Expanding AI Capabilities

https://underscoredone.com/
1•onescales•51m ago•0 comments

S.Korea's KOSPI tumbles nearly 5% as chipmakers slump on AI worries

https://www.reuters.com/world/asia-pacific/skoreas-kospi-tumbles-nearly-5-chipmakers-slump-ai-wor...
4•rvz•52m ago•0 comments

QuickLogic eFPGA IP

https://www.quicklogic.com/efpga-ip/
1•peter_d_sherman•55m ago•0 comments

Tag Universal Machine Pitch Deck [pdf]

https://taguniversal.github.io/digital_blockchain_patents/TAG_Pitch_Deck.pdf
1•taguniversalm•57m ago•0 comments

Velonus – now in beta, with AI triage and one-click fix PRs

https://www.velonus.com/
1•AliAmmar15•1h ago•0 comments

Copyright Scammers Weaponized Meta's Rights Manager with Backdating Exploit

https://torrentfreak.com/copyright-scammers-weaponized-metas-rights-manager-with-backdating-exploit/
2•gslin•1h ago•1 comments