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Field notes

Blog

Practical field guides on building, shipping, and operating software — written up as we learn them. RSS.

Jun 26, 2026 · 5 min read

Docker: A Pocket Companion

From 'works on my machine' to a container running in production — learned by packaging and deploying one small API.

Jun 25, 2026 · 6 min read

Vim: A Pocket Companion

Stop fighting the editor. The moves that matter — learned by building a small Python program without ever leaving home row.

Jun 23, 2026 · 4 min read

tmux: A Pocket Companion

Never lose a remote session again. Persistent terminals, splits, and windows — the natural companion to SSH.

Jun 22, 2026 · 4 min read

Git: A Pocket Companion

Beyond add-commit-push. The branch workflow, the history-rewriting tools, and the commands that un-break things.

Jun 20, 2026 · 7 min read

SSH: A Pocket Companion

One encrypted channel between your machine and any other — from the commands you type all day to the config that makes them disappear.

Jun 18, 2026 · 3 min read

Caddy: A Pocket Companion

Automatic HTTPS with almost no config. One reverse proxy in front of many apps — the platform's front door.

Jun 16, 2026 · 4 min read

systemd: A Pocket Companion

Run your app as a real service — started on boot, restarted on crash, with logs you can actually read.

Jun 14, 2026 · 4 min read

curl: A Pocket Companion

Talk to any HTTP API from the terminal — GET, POST JSON, auth, and the flags that make debugging obvious.

Jun 12, 2026 · 4 min read

Regex: A Pocket Companion

The pattern language hiding inside grep, sed, your editor, and every language. Read it, write it, stop fearing it.