frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Open in hackernews

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!

Trump administration reportedly reviving push to ban Chinese AI models, Kimi K3

https://www.tomshardware.com/tech-industry/artificial-intelligence/trump-administration-reportedl...
1•virgildotcodes•43s ago•0 comments

US is building 3000 data centers. The economics aren't as great as they seem

https://qz.com/data-center-construction-permanent-jobs-cliff-071026
1•robtherobber•3m ago•0 comments

Optique 1.2.0: fluent modifiers, deferred values, and new integrations

https://github.com/dahlia/optique/discussions/877
1•dahlia•3m ago•0 comments

Show HN: WhimPop – A macOS menu that pops up under your cursor

https://whimpop.com/
1•whimbyte•5m ago•0 comments

How to Love the World More: George Saunders on the Courage of Uncertainty

https://www.themarginalian.org/2026/07/20/george-saunders-uncertainty/
1•the-mitr•9m ago•0 comments

Show HN: Clair – open-source semantic news API

https://clair.im
1•kaanersoy•12m ago•0 comments

Visualizing the Artemis II Mission

https://foxglove.dev/blog/visualizing-the-artemis-ii-mission
1•msadowski•14m ago•0 comments

Did Claude Code became faster after Bun switch

https://claude.com/product/claude-code
1•preetham_rangu•14m ago•0 comments

Paraphraser AI – a rewriter with controls for meaning, tone, and keywords

https://tryparaphraser.com/
1•dinglumeng•15m ago•0 comments

Incremental View Maintenance on DuckDB

https://github.com/ila/openivm
2•hantusk•18m ago•0 comments

Fake kits worth £18M seized by police during World Cup

https://www.bbc.co.uk/sport/football/articles/c0rdgrkx552o
1•mmarian•22m ago•0 comments

NameRank: The Model Knows Your Project, Not You

https://01.me/research/namerank/
1•jarrett-ye•23m ago•0 comments

Escape Analysis in Go: Stack vs. Heap Allocations Explained

https://blog.jetbrains.com/go/2026/07/20/escape-analysis/
1•ingve•25m ago•0 comments

Grok Build Is Open Source, but xAI Won't Take Your Patches

https://www.vincentschmalbach.com/grok-build-open-source-contributions-closed/
1•vincent_s•25m ago•0 comments

How the Western Diet Has Derailed Our Evolution (2015)

https://nautil.us/how-the-western-diet-has-derailed-our-evolution-235683
1•XzetaU8•27m ago•0 comments

Isolation Failure from Shared Storage: Page-Cache SCA Leakage Across Containers

https://arxiv.org/abs/2607.17518
1•sbulaev•29m ago•0 comments

German government approves new gas power plant auctions to back up wind andsolar

https://www.cleanenergywire.org/news/german-government-approves-new-gas-power-plant-auctions-back...
2•leonidasrup•29m ago•0 comments

ANSI escape injection in MCP servers: Hidden from humans, visible to AI

https://brightsec.com/research/detecting-ansi-escape-sequence-injection-in-mcp-servers-with-dast/
1•xgpyc2qp•34m ago•0 comments

China's AI models have Trump's AI world at war with itself

https://www.technologyreview.com/2026/07/20/1140675/chinas-ai-models-have-trumps-ai-world-at-war-...
1•joozio•35m ago•0 comments

Show HN: SteerPlane – open-source runtime guardrails for AI agents

https://github.com/vijaym2k6/SteerPlane
1•vijaym2k6•36m ago•0 comments

Free website-cost calculator and open CC-BY dataset of what web projects cost

https://projectcostestimator.com
1•VrumVrum•39m ago•0 comments

Ask HN: Does it make sense to rotate AI accounts regularly?

1•kls0e•40m ago•1 comments

An open-source model on par with DeepSeek v4 has appeared in South Korea

https://old.reddit.com/r/LocalLLaMA/comments/1v23c6w/motif_3_beta_released/
1•haebom•41m ago•0 comments

Show HN: Claude is getting an attitude

2•_nhh•41m ago•0 comments

Head to head: GLM 5.2 vs. OpenAI: GPT-5.6 Sol

https://runtimewire.com/article/head-to-head-glm-5-2-vs-openai-gpt-5-6-sol
1•ryanmerket•50m ago•0 comments

Commonsense Lessons from the Silicon Valley VC Cash Splash and Metaverse Fail

https://medium.com/@vektormemory/commonsense-lessons-from-the-silicon-valley-vc-cash-splash-metav...
2•vektormemory•54m ago•0 comments

Raided Myanmar Scam Compounds

https://www.abc.net.au/news/2026-07-21/myanmar-scam-compounds-exponential-growth/106603324
2•Gaishan•54m ago•0 comments

Musk says new 2T param Grok model to be trained on SpaceX engineering corpus

https://twitter.com/elonmusk/status/2079446276299465185
1•handfuloflight•56m ago•0 comments

Why design matters for a web framework: a 7-year evolution

https://wasp.sh/blog/2026/07/13/why-design-matters-for-a-web-framework
1•franjo_mindek•1h ago•0 comments

Cortisol Could Be the Next Frontier for Wearables

https://spectrum.ieee.org/cortisol-continuous-monitor-wearable
2•arnejenssen•1h ago•0 comments