Guides

Field guides that pull related posts together, so you can start with a whole topic instead of one article.

• Java Foundations: the primitives, runnable

  Reference articles for the Java primitives, each explained and backed by a runnable brick: data modeling, then the memory model.

  2 articles · 20 min read

  

  

• Building ralphctl: an agent harness, release by release

  The build log of one agent harness: how ralphctl went from a v0.0.4 sprint CLI to a cross-provider loop I trust to run coding agents overnight.

  5 articles · 70 min read

  

  

  

• Spring Boot and Postgres: where the limits actually are

  One Spring Boot app, one Postgres: where a request really queues, what the connection pool gates, and how much search the database can do on its own.

  2 articles · 46 min read

  

  

• Spring Boot and OAuth2: a field guide for every surface

  Secure a Spring Boot app with OAuth2 across every surface: HTTP APIs, the gateway, and the message broker, all on one Keycloak and the same scopes.

  5 articles · 102 min read

  

  

  

• AI agent harnesses: a field guide

  What an AI agent harness is, how the generator-evaluator loop and check gates decide when a change is done, and why the harness is the part you trust.

  3 articles · 35 min read