Git and Hg is similar, but that is not all there is to the DVCS space. Fossil target a different use case. Darcs have an entirely different underlying structure

Git and Hg is similar, but that is not all there is to the DVCS space. Fossil target a different use case. Darcs have an entirely different underlying structure, which enables different abilities, especially during merging. I find it hard to believe that a single tool can be the best for * Huge monorepos and thousands of developers * Repos with huge binary files * Repos with few developers * Personal repos. * CD repos * Interconnected repos Even if two different repository technologies are more or less equivalent, some things might be too cumbersome in one but not the other.