Systems, tools, and working notes

Small references for everyday engineering work.

A quiet place for checklists, snippets, and notes that are useful enough to keep close but not large enough to become a full article.

Daily log deploy checklist cache headers backup window

Recent notes

Practical reminders

Static hosting checklist

Keep assets local, set long cache headers for immutable files, and let the root document stay easy to replace.

Nginx headers worth keeping

Prefer a small default set: nosniff, same-origin framing, and a clear cache policy for HTML versus assets.

Incident notebook format

Write down the symptom, the first bad timestamp, the command that confirmed it, and the rollback point.

References

Reusable snippets

Cache split

location /assets/ {
  expires 30d;
  add_header Cache-Control "public, immutable";
}

Health page

location = /healthz {
  add_header Content-Type text/plain;
  return 200 "ok\n";
}

About

Maintained as a lightweight static page.

This site is intentionally simple: plain HTML, a single stylesheet, no build step, no external scripts, and no remote assets. It can be served directly by Nginx, Caddy, or any static file server.