A senior engineer with eight years of experience spent three weeks digging through a codebase just to understand the reasoning behind architectural choices. The team's decisions - like using Redis over in-memory caching, GraphQL for one service but REST elsewhere, and a strange enterprise auth exception - were buried in closed pull requests, 18-month-old Slack threads, and the memories of departed engineers.

Previous attempts to document these decisions failed repeatedly. Architecture Decision Records lasted only six weeks before being abandoned. Pull request templates were ignored within a month. The Notion architecture document hasn't been updated in 14 months. Every solution required manual documentation that no one maintained.

The team is now seeking practical solutions from the Hacker News community. They want to know if any teams have found systems that work long-term, whether automation can help capture this context, or if everyone simply suffers through this onboarding challenge. The problem highlights a fundamental gap in how engineering teams preserve institutional knowledge.