Most engineering notes are written once and forgotten. You capture something during a debugging session, paste it into a doc, and rediscover it two years later with no context for why it mattered.
The problem is not effort. Engineers write constantly — code comments, Slack messages, Confluence pages, Jira descriptions, pull request explanations, architecture diagrams. The problem is that most of those notes are written for a specific moment and age poorly. They do not compound. They accumulate.
Evergreen notes are the alternative. The idea is simple: write each note so that it stays useful indefinitely, improves when you revisit it, and connects to other notes in a way that makes the whole system more valuable over time.
The term was popularized by researcher Andy Matuschak, whose own public notes demonstrate the idea at scale. For engineers, the principle has direct applications in technical writing, documentation, architecture decisions, and the long-term capture of hard-won lessons.
What Makes a Note Evergreen
