I am using Go right now for personal projects. One such project is to collect per-test-case coverage data and use it to study the structure of the underlying codebase. I'm hoping to develop a new knowledge base for agents to do feature location. Here's a demo https://atlas.vihren.dev

Anyway, it turned out that Go ironically makes it difficult to collect per-test-case coverage data. In spite of the standardized tooling it looks impossible to write a standardized collector that would run on most codebases. In hindsight using another language would have been a better choice