Measure before tuning
A simple baseline is more useful than an impressive setting. Change one variable, observe it long enough, and keep the path back.
Field Notes
Small observations on dependable software, quiet infrastructure, and the details that make everyday systems work.
The value of boring systems
The best small services are often the ones that restart cleanly, explain their failures, and need very little attention.
Keep the surface small
Every optional component becomes another thing to update and understand. A narrow design is easier to operate well.