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latentSource

Ideas, experiments, and noteson data and AI.

A technical blog about AI agents, retrieval systems, databases, and geospatial tools. Explore how they work through code, experiments, and the decisions behind them.

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When submissions give orders
agents· 8 min read

When submissions give orders

A conference submission talked an assistant into rewriting its own output. Testing two input gates exposed the tradeoff between catching attacks and rejecting legitimate work.

php2shell: Are We Affected?
agents· 6 min read

php2shell: Are We Affected?

The php2shell vulnerabilities turn a PHP security alert into an urgent operational question. I built CVE Central to inspect deployed applications, confirm CVE applicability, and prepare a remediation plan.

When meaning misses
embeddings· 7 min read

When meaning misses

A World Cup project vanished from search after one missing letter. The scores explain why embeddings, correct prompts, and hybrid retrieval still need a test of relevance.

Agents

Working agents for infrastructure automation, database-backed AI, and search evaluation.

Hermes homelab agent
Agent

Hermes homelab agent

A WhatsApp request, a reviewed plan, and a Docker-ready Proxmox container. Watch the build and an independent check of the result.

Hermes Agent · WhatsApp · Proxmox · Docker · Technitium

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Mexico City transit assistant
Agent

Mexico City transit assistant

A conversational transit map that resolves places and asks a routing engine to calculate the journey.

Gemini · MCP · PostGIS · pgRouting

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JobMap
Agent

JobMap

Describe the work you want to do, explore matching job postings, and inspect the evidence behind Jev's relevance judgments.

Jev · Sentence embeddings · PostgreSQL · pgvector

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Behind the blog

Who is behind The Latent Source?

I’m Oswaldo Orona, a developer. I created The Latent Source to share my work in AI, data science, databases, and geospatial systems. I’ve worked with databases since 1998 and hold a Master of Computer Science in Data Science from the University of Illinois Urbana-Champaign.

What do you build?

I build AI agents that use tools and connect to data, retrieval systems that help people find information, and geospatial applications. Here you can explore my independent projects through code, demos, and articles explaining how they work and the engineering decisions behind them.

More about me →