Kubernetes Multi-Tenancy: Namespace Isolation, RBAC, and Network Policies Explained Most teams running shared Kubernetes clusters believe they have isolation. They have namespaces. They have different teams deploying to different namespaces. It feels like separation. It is not. Kubernetes was designed as a single-tenant system. Multi-tenancy is not a built-in feature. It is a property you constr
The first article on this blog explained how it was built in 30 minutes with Claude Code. Naturally, a blog needs comments. Same constraints: no database, no external dependencies, no Disqus tracking visitors. Just PHP + JSON files. Built in one session with Claude Code — the interesting part wasn't the code, it was the security audit that followed. A comment system without a database seems trivia
When building applications with large language models (LLMs), one of the most overlooked costs is how structured data is represented. Most systems use JSON. And JSON is inefficient for LLM input. KODA (Knowledge-Oriented Data Abstraction) is a schema-first data format designed to reduce token usage when sending structured data to LLMs. It works by: Defining structure once (schema-first) Encoding v