Notes from the field

Surveying, GIS, spatial databases and the software around them — what I learn while building it.

September 23, 2026

Rehearse disasters before production does it for you

A hands-on GitOps runbook: minikube, Terraform, Argo CD app-of-apps, and three disaster drills to run before a real migration.

gitopsargocdkubernetesterraformdisaster-recovery

September 16, 2026

How I used Sentinel, my monitoring tool, to track all 157 RBMC stations — and what that changes for IBGE and for anyone using RTK or post-processing.

rbmcgnsssurveyingntripopen-source

September 14, 2026

A surveying engineer who ended up writing software: how I got from field surveys to orchestration control planes, and what this blog is for.

aboutsurveyinggissoftware

September 14, 2026

A practical guide to the n8n 2.x defaults that quietly disable shell, file and env access — and the env vars that restore n8n 1.x behavior.

n8nautomationmigration-guidedevopsgeospatial