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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!

z486: A 486-Class Pipelined FPGA CPU with Integrated Floating-Point

https://nand2mario.github.io/posts/2026/z486/
1•matt_d•2m ago•0 comments

Preparing GLM-5.3 for Open Release: A Responsible Path to Cyber Defense

https://twitter.com/Zai_org/status/2088280509474320693
1•pretext•6m ago•0 comments

Compatibility Testing Pulumi HCL

https://www.pulumi.com/blog/compatibility-testing-pulumi-hcl/
1•cnunciato•9m ago•0 comments

Malaysia to launch palm oil-based immersion cooling fluid for data centers

https://www.datacenterdynamics.com/en/news/malaysia-to-launch-palm-oil-based-immersion-cooling-fl...
2•01-_-•9m ago•0 comments

Microsoft Walks Away from China

https://247wallst.com/investing/2026/08/14/microsoft-walks-away-from-china/
1•01-_-•10m ago•0 comments

Spain extends largest nuclear plant in policy U-turn

https://www.yahoo.com/news/politics/articles/spain-extends-largest-nuclear-plant-104423761.html
1•mpweiher•12m ago•0 comments

Get to Know David, Alice, Bob, Jack and Sara [Agents] [video]

https://www.youtube.com/watch?v=zAOcfDu5vp0
1•rodmena•12m ago•0 comments

Show HN: Bernstein – run 44 CLI coding agents from one deterministic scheduler

https://github.com/sipyourdrink-ltd/bernstein
1•alex_chernysh•20m ago•0 comments

Show HN: Local Duolingo like course authoring for independent creators

https://www.asakiri.com/
2•alekoiz•22m ago•1 comments

GLM-5.3: How Chinese labs keep stride with the frontier

https://www.interconnects.ai/p/glm-53-how-chinese-labs-keep-stride
2•tosh•23m ago•0 comments

How to ship a database every day

https://turbopuffer.com/blog/control-plane
1•samuel246•23m ago•0 comments

Google Opens the Gates of AI Slop Hell

https://gizmodo.com/google-opens-the-gates-of-ai-slop-hell-2000798888
4•ochrist•29m ago•1 comments

Tankers Are Going Dark for Longer to Get Oil Out of Middle East

https://www.bloomberg.com/news/articles/2026-08-14/tankers-are-going-dark-for-longer-to-get-oil-o...
1•tosh•30m ago•0 comments

The Embedder's Dilemma: LLMs Are Better, but at What Cost?

https://arxiv.org/abs/2608.12875
1•sbulaev•31m ago•0 comments

Show HN: Riffn. An instant voice link with your AI agents and local models

https://riffn.io/how-riffn-works/
2•riffn•33m ago•0 comments

"That's not SoC 2 compliant"

https://ampcode.com/notes/thats-not-soc-2-compliant
11•tosh•37m ago•3 comments

Ask HN: How do you keep up with HN these days?

12•simonebrunozzi•39m ago•12 comments

Mycorrhizal Infrastructure Map

https://a-hidden-infrastructure.spun.earth/map
1•num42•40m ago•0 comments

Israel's done little to rein in spiraling settler violence against Palestinians

https://apnews.com/article/israel-palestinians-settler-violence-us-siege-west-bank-bd4ae76cec1773...
4•hebelehubele•42m ago•1 comments

Choosing the Right Database for AI Agents: LLM Generated SQL

https://predictabledialogs.com/learn/ai-stack/choosing-database-configurable-ai-agents
2•jaikant•45m ago•0 comments

Behold the 'glueball,' a new form of matter

https://www.science.org/content/article/behold-glueball-strange-new-form-matter
1•the-mitr•48m ago•0 comments

Global Mastercard outage stopping shopping in Sydney

https://www.smh.com.au/national/global-mastercard-outage-stopping-shopping-in-sydney-20260815-p60...
5•Khaine•52m ago•0 comments

Are You a Human?

https://www.newyorker.com/magazine/2026/08/17/are-you-a-human
2•mitchbob•54m ago•1 comments

Hacking Fiber to the Home

https://hackaday.com/2026/08/13/hacking-fiber-to-the-home/
2•Corrado•1h ago•0 comments

An Autonomous Framework for Systematic Factor Invest via Agentic AI

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6416881
2•dima1830•1h ago•0 comments

Show HN: NexusMem – local memory for coding agents, not just Git log

https://github.com/yaminbkk/NexusMem
2•yamin_bakoh•1h ago•0 comments

Who Is Cami Clark? Anthropic CEO's Wife Asked Epstein to Invest in Porn Business

https://www.forbes.com/sites/alisondurkee/2026/08/14/who-is-cami-clark-anthropic-ceos-wife-asked-...
6•gpi•1h ago•1 comments

Apple launches ads in Apple Maps for businesses across the US and Canada

https://www.theapplepost.com/2026/08/14/71094/apple-launches-ads-in-apple-maps-for-businesses-acr...
2•mgh2•1h ago•1 comments

Did the AI Bubble Just Pop?

https://www.youtube.com/watch?v=wrFH8PvDPFE
1•cable2600•1h ago•0 comments

Show HN: GPT, Claude, Gemini. Ask them all. Pay for one

https://whizi.io/
2•not_wowinter14•1h ago•0 comments