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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•10mo 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!

Astro – Ochestrator of AI Agents Such as Claude Code and Codex

https://github.com/astro-anywhere/astro-agent
1•astroanywhere•36s ago•1 comments

Authentication with Pocket ID

https://cweagans.net/2026/03/authentication-with-pocket-id/
1•cweagans•48s ago•0 comments

Trump's DOJ is not falling for Sam Bankman-Fried's MAGA makeover on X

https://arstechnica.com/tech-policy/2026/03/trumps-doj-is-not-falling-for-sam-bankman-frieds-maga...
1•tartoran•4m ago•0 comments

The Bhangmeter, a 1960s device to measure nuclear detonations

https://en.wikipedia.org/wiki/Bhangmeter
1•zahlman•5m ago•0 comments

Show HN: CastReader – Free TTS Extension That Reads Kindle Cloud Reader

https://chromewebstore.google.com/detail/castreader-tts-reader/foammmkhpbeladledijkdljlechlclpb
1•vinxu•5m ago•0 comments

Auto-georeferenced 381 Soviet military maps of China

https://sovietatlas.monarcha.ai/
2•everettglee•8m ago•0 comments

When the Simulation Starts to Feel Real

https://alvinpane.com/essays/when-the-simulation-starts-to-feel-real
2•alvinpane•9m ago•0 comments

QuickBEAM: JavaScript Runtime for the BEAM VM

https://github.com/elixir-volt/quickbeam
1•clessg•11m ago•0 comments

Show HN: The Bones of PearlOS

https://github.com/NiaExperience/PearlOS/discussions/5
1•pearlos•11m ago•0 comments

Reddit's database has two tables (2012)

https://kevin.burke.dev/kevin/reddits-database-has-two-tables/
1•tosh•14m ago•0 comments

Dario 12 months ago: In 12 months, nearly all code may be generated by AI

https://twitter.com/slow_developer/status/1899430284350616025
3•nipponese•14m ago•1 comments

Do current trends in drone technology favor offense or defense?

https://marginalrevolution.com/marginalrevolution/2024/03/do-current-trends-in-drone-technology-f...
1•paulpauper•15m ago•1 comments

#238 – Sam Winter-Levy and Nikita Lalwani on how AI won't end nuclear deterrence

https://80000hours.org/podcast/episodes/sam-winter-levy-nikita-lalwani-ai-nuclear-deterrence/
1•paulpauper•15m ago•0 comments

MongoDB outage – AWS UAE and Bahrain datacenters

https://status.mongodb.com/incidents/7g5qmxgkc2y4
3•peterjliu•16m ago•0 comments

Show HN: Scan your dev machine for AI agents, MCP servers, and IDE extensions

https://github.com/step-security/dev-machine-guard
4•varunsharma07•16m ago•0 comments

Show HN: Mozzie – a local desktop orchestrator for AI coding agents

https://github.com/usemozzie/mozzie
1•zacharykapank•17m ago•0 comments

API Design Principles for the Agentic Era

https://www.apideck.com/blog/api-design-principles-agentic-era
1•mooreds•18m ago•0 comments

Lloyds, Bank of Scot and Halifax apps showed customers other users' transactions

https://www.bbc.co.uk/news/articles/c4g23npxpwgo
1•ColinWright•18m ago•0 comments

Launch HN: IonRouter (YC W26) – High-throughput, low-cost inference

https://ionrouter.io
5•vshah1016•20m ago•0 comments

AI Cluster Runtime: Reproducible Configs for GPU-Accelerated Kubernetes Clusters

https://developer.nvidia.com/blog/validate-kubernetes-for-gpu-infrastructure-with-layered-reprodu...
1•mchmarny•20m ago•1 comments

NM framework on Karpathy's autoresearch factory

https://nervousmachine.substack.com/p/3000-agents-are-running-experiments
1•hb_124•20m ago•0 comments

Oops, You Wrote a Database

https://dx.tips/oops-database
2•tosh•23m ago•0 comments

Engram – A distributed memory system for AI agents, with extensible architecture

https://vincents-ai.github.io/engram/
2•section_me•24m ago•1 comments

Show HN: Mingle – find and connect with people, like LinkedIn but in your chat

https://github.com/aeoess/mingle-mcp
1•Tima_fey•25m ago•0 comments

Current and former Block workers say AI can't do their jobs

https://www.theguardian.com/technology/2026/mar/08/block-ai-layoffs-jack-dorsey
4•devonnull•26m ago•0 comments

PHP-rnet – a PHP extension that mimics real browser TLS fingerprints

1•takielias•29m ago•1 comments

A small CLI for stopping Git worktrees from fighting over ports

https://github.com/johndockery/portlock
1•ilovejazz442•29m ago•0 comments

Svelte Best Practices

https://svelte.dev/docs/svelte/best-practices
1•Erenay09•29m ago•0 comments

Lowdown can translate Markdown to an mdoc manpage

https://kristaps.bsd.lv/lowdown/mdoc.html
1•fanf2•30m ago•0 comments

FSC Age Verification Bill Tracker

https://action.freespeechcoalition.com/age-verification-bills/
1•muyuu•32m ago•0 comments