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Building a RAG Tool in Ruby 4

https://robbyonrails.com/articles/2026/02/26/building-a-rag-tool-in-ruby/
1•robbyrussell•1h ago

Comments

robbyrussell•1h ago
Built a RAG tool in Ruby to surface historical context from Jira, Confluence, and GitHub before starting work on client tickets. No prior experience with embeddings or vector databases. Ended up adding an MCP server so it works directly inside Claude Code.

Mind-bending relativity illusion has never been seen–until now

https://www.scientificamerican.com/article/strange-special-relativity-effect-observed-for-the-fir...
1•revicon•20s ago•0 comments

FY2025 NDAA, Section 1638 Statement of Policy

https://agora.eto.tech/instrument/1740
1•apolloartemis•1m ago•0 comments

Show HN: Resume Rescue AI – Land your next tech role in half the time

https://project-800e5120.doanything.app
1•kairo_vexley•3m ago•0 comments

A Wizard's Quest

https://www.thedungeoncomic.com/p/a-wizards-quest
1•ewpierce•9m ago•0 comments

Show HN: A self-hosted OAuth 2.0 server for authenticating AI agents and machine

https://github.com/mandarwagh9/MachineAuth
1•mandarwagh•10m ago•0 comments

Google Workers Seek 'Red Lines' on Military A.I., Echoing Anthropic

https://www.nytimes.com/2026/02/26/technology/google-deepmind-letter-pentagon.html
3•mikece•12m ago•0 comments

Freefall Science Fiction Webcomic

http://freefall.purrsia.com/
1•ryan-ca•15m ago•0 comments

Burger King's AI will listen to orders and 'coach' workers on being 'hospitable'

https://www.nbcnews.com/business/consumer/burger-king-ai-chatbot-please-thank-you-rcna260848
1•ceejayoz•15m ago•1 comments

US regulator scrutinised over bank licence sought by Trump crypto venture

https://www.ft.com/content/d43bee0f-d187-4d3a-814a-0a160876fbc8
1•petethomas•17m ago•0 comments

The Decline of Confidence in Higher Education

https://expression.fire.org/p/the-decline-of-confidence-in-higher
1•barry-cotter•19m ago•1 comments

In the Spotlight

https://michaelheap.com/in-the-spotlight/
1•mooreds•21m ago•0 comments

Show HN: Eth.zig – Pure Zig Ethereum library, 19/26 benchmark wins vs. alloy.rs

https://github.com/StrobeLabs/eth.zig
1•kookamo•29m ago•1 comments

Why Europe Doesn't Have a Tesla

https://worksinprogress.co/issue/why-europe-doesnt-have-a-tesla/
3•MintyPyro•29m ago•0 comments

Kansas informs trans residents their drivers licenses become invalid on Thursday

https://www.kansascity.com/news/politics-government/article314844596.html
2•Jimmc414•33m ago•1 comments

More Americans Under 55 Are Dying of Heart Attacks

https://www.wsj.com/health/wellness/more-americans-under-55-are-dying-of-severe-heart-attacks-12d...
3•petethomas•35m ago•0 comments

Ask HN: How do you handle duplicate side effects when jobs, workflows retry?

2•shineDaPoker•35m ago•0 comments

Permissioned Data Diary 2: Buckets (ATProto)

https://dholms.leaflet.pub/3mfrsbcn2gk2a
1•verdverm•37m ago•1 comments

Ordain: Commission board for AI short films, paid over Bitcoin Lightning

https://ordain.art
1•anbealbocht•38m ago•1 comments

Denver mayor announces executive order banning ICE from city property

https://www.msn.com/en-us/news/us/denver-mayor-announces-executive-order-banning-ice-from-city-pr...
2•petethomas•39m ago•1 comments

Mathematics in the Library of Babel

https://www.daniellitt.com/blog/2026/2/20/mathematics-in-the-library-of-babel
1•gmays•40m ago•0 comments

Permissioned Data Diary 1: To Encrypt or Not to Encrypt

https://dholms.leaflet.pub/3meluqcwky22a
2•CharlesW•41m ago•0 comments

Show HN: Lar-JEPA – A Testbed for Orchestrating Predictive World Models

https://github.com/snath-ai/Lar-JEPA
1•axdithya•42m ago•0 comments

The authoritarian AI crisis has arrived

https://www.platformer.news/anthropic-pentagon-authoritarian-ai/
2•spenvo•44m ago•0 comments

Git in Postgres

https://nesbitt.io/2026/02/26/git-in-postgres.html
1•vinhnx•47m ago•0 comments

Free Internetworking Peering System and mesh routing protocol

https://github.com/jmcorgan/fips
1•chr15m•47m ago•0 comments

Pentagon Laser Shoots Down Customs Border Patrol Drone in Texas

https://www.bloomberg.com/news/articles/2026-02-27/pentagon-laser-shoots-down-customs-border-patr...
9•c420•51m ago•4 comments

Show HN: RentDaNang – 6,500 Da Nang rentals in 6 languages, built solo with AI

https://rentdanang.app
1•visualmovement•51m ago•0 comments

The Phantom Horizon

https://www.aerosociety.com/news/the-phantom-horizon/
1•bookofjoe•52m ago•0 comments

Robot wars are a reality (2007)

https://www.theguardian.com/commentisfree/2007/aug/18/comment.military
1•bariumbitmap•54m ago•0 comments

Show HN: Gas Town Control Plane – hosted monitoring for multi‑agent workspaces

https://github.com/SmolNero/gastown-control-plane
1•edgar_ortega•54m ago•0 comments