Hello. I am trying to fully understand yi as quickly as possible. Yi, like most big programs, consists of a number of modules; e.g. Yi.UI, Yi.Buffer, etc. Since I am not smart enough to understand all the modules at once, I am trying to understand them one at a time (is this itself the problem?); however, since mutual dependencies exist, I can't do it that easily, since understanding module A requires knowledge of the interface of module B requires knowledge of the implentation of module B requires knowledge of the interface of module A requires knowledge of the implementation of module B (and my brain's lazy fix is not very good). Yi has haddock-style comments (despite not being a library), so I tried using ./Setup.lhs haddock for readable side references, however this failed on CPP markup. After asking on #haskell, newsham noted that he had filed a cabal bug (#102), but the bug's page notes: Haddock generates interface documentation. That's only appropriate for libraries, isn't it? So, if haddock isn't what I want, what is? Or am I going at this completely wrong? What is the recommended way to approach a largish program like yi or lambdabot? (and if haddock is the wrong way to handle this, why does yi have haddock comments?) Note: I *have* managed to pretty thourougly understand lambdabot, but it took a while, wasn't particularly easy, and anyway lambdabot's dependency groups are quite small compared to eg lambdabot's. I'm hoping to make things easier for myself. Stefan