There was a thread not so long ago about approaching large codebases. I think you might find some of the advice there useful: https://news.ycombinator.com/item?

There was a thread not so long ago about approaching large codebases. I think you might find some of the advice there useful: https://news.ycombinator.com/item?id=16299125 https://news.ycombinator.com/item?id=16299125