About
A notebook for systems worth understanding.
Northline Notes is an independent collection of concise technical observations, written for people who enjoy knowing how their tools work.
What belongs here
Small operational lessons, diagrams that clarify a difficult path, and techniques that make everyday infrastructure easier to maintain. Each note aims to be useful without requiring a particular stack or vendor.
Editorial approach
Examples are deliberately modest. Claims should be testable. Recommendations should explain their trade-offs. If a subject needs a book, this site tries to provide a good first page.