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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!

Debiasing Your Software Design Decision-Making

https://www.youtube.com/watch?v=rcLRzDm8cwQ
1•RebootStr•38s ago•0 comments

Show HN: Checkout the new Customisable Template feature for marketing content

https://www.clickcast.tech/template-editor
1•modulusme•2m ago•0 comments

Show HN: MemoryOps – governed memory infrastructure for AI assistants

https://github.com/patibandlavenkatamanideep/memoryops-ai
2•pvmanideep20•2m ago•0 comments

An Ascendant Constitutional Theory Is a Threat to American Science

https://www.theatlantic.com/ideas/2026/06/unitary-executive-scientific-research/687565/
1•thunderbong•6m ago•0 comments

Hugging Face, ModelScope, or CSGHub: How Should a Team Choose?

https://github.com/OpenCSGs/csghub
1•YangXYfc•6m ago•0 comments

LM Link – This is the future I want

1•smalltorch•20m ago•0 comments

Consciousness and Orch OR

https://hameroff.arizona.edu/research-overview/orch-or
2•andsoitis•22m ago•0 comments

Badc – optimizing cross-platform C compiler built with Claude

https://github.com/kromych/badc
1•kromych•23m ago•2 comments

Show HN: Browse the web your way

https://browse-your-way.vercel.app
2•MaxLeiter•25m ago•0 comments

Puppeteer Stealth: Complete Guide to Avoiding Detection

https://scrapfly.io/blog/posts/puppeteer-stealth-complete-guide
1•ankitg12•27m ago•0 comments

Show HN: Eye-brain-hand – a quick neuro coordination and memory test

https://ubershmekel.github.io/eye-brain-hand/
1•ubershmekel•30m ago•0 comments

Absolute State of Unreal 2026

https://www.joewintergreen.com/absolute-state-of-unreal-2026/
1•anonymousab•32m ago•0 comments

ShipFast: Production-ready deploy templates for devs who hate DevOps

https://dpaste.com/94VY3XYU9
1•shipfastdev•32m ago•1 comments

Danish privacy activist Lars Andersen raided by police

https://twitter.com/LarsAnders1620/status/2068208864747540516#m
41•I_am_tiberius•38m ago•11 comments

Ask HN: Favorite Sorting Algorithm?

1•akashwadhwani35•43m ago•1 comments

Ask HN: Do you have an unusual income source

4•xupybd•45m ago•0 comments

Japan to raise visa fees for foreign nationals

https://www.japantimes.co.jp/news/2026/06/20/japan/japan-raise-visa-fees/
4•geox•48m ago•0 comments

Cini, an app to rank movies and shows

1•jtsilver123•53m ago•1 comments

Sharing a Good One

1•SharingAGoodOne•55m ago•0 comments

Show HN: 2Flights – Track your flights; delays and stats (iOS/Android)

https://2flights.io
1•umuslitdinov•58m ago•0 comments

Stop Fearing Incidental Findings

https://ostro.ws/post-healthcare
1•robbieo•59m ago•1 comments

About the writing process (or lack thereof)

https://www.thefoxfirepub.com/blog/blog-post-title-four-lr658-tcthp-wf5mw-mx4m8-tgp6b
1•FantasticPulp•1h ago•0 comments

Chinas War on Female Delusion

https://mamathemagazine.com/chinas-war-on-female-delusion/
18•trojanalert•1h ago•0 comments

Samsung Electronics brings ChatGPT and Codex to employees

https://openai.com/index/samsung-electronics-chatgpt-codex-deployment/
1•doppp•1h ago•0 comments

How do you process asynchronous tasks today?

https://meerkatagents.com/
2•kannanreghu•1h ago•1 comments

SC law legalizes pinball for youth, ending decades-old prohibition

https://scdailygazette.com/2026/06/17/sc-law-legalizes-pinball-for-youth-ending-decades-old-prohi...
3•eric_h•1h ago•0 comments

Magpie-search – a federated search engine for LLM's/agents

https://github.com/xfloukiex-lab/magpie-search
1•Floukie•1h ago•0 comments

Niaid funded Wuhan Institute of Virology coronavirus gain-of-function research

https://www.dni.gov/index.php/newsroom/press-releases/press-releases-2026/4166-pr-11-26
8•stinkbeetle•1h ago•3 comments

China targets U.S. firms in retaliation for Pentagon blacklist

https://www.cnbc.com/2026/06/22/china-trade-curbs-us-companies-export-controls-procurement-exclus...
2•ilreb•1h ago•0 comments

Timesharing on the MIT Weather Radar PDP-8/IX

https://retrocomputingforum.com/t/timesharing-on-the-mit-weather-radar-pdp-8-ix/5569
1•signa11•1h ago•0 comments