vol. 02 · spring 2026

An engineering notebook — small fixes, environment tricks, and the patterns I keep reaching for.

Kubernetes, AWS, dev environments, and the occasional deeper essay. Each entry is a problem I had, the fix I landed on, and why it works — written so future me can find it again.

Entries4

Notes1

Essays3

Cadenceweekly · ish

Latest0d ago

This month's essay.

long-form · once a month · ish

fig.001 — infrastructure

essay · Infrastructure · 13 min

Observability in a hybrid microservices stack: Spring Boot, FastAPI, and LangChain on Kubernetes

The problem

A 500 in a service that calls two others means three separate log streams and no common thread. A correlation ID that flows through every hop automatically — via the W3C traceparent header — collapses the entire trace into a single query.

read the full essay →

Other essays

Working with Kubernetes locally: Minikube, multiple clusters, and k9s Dev environment from scratch: managing Java, Python, and Node versions on Mac

Recent notes.

view all 4 entries →

003

note Backend #java#python · 7 min

Exception handling in REST APIs: from concept to root cause

Most API bugs trace back to exceptions that were either silently swallowed — making the error invisible — or dumped raw into the response, exposing internals. A centralized handler with consistent logging and a structured error response fixes both.

May 03, 2026