TractoR, the medical image analysis platform for which I am the main developer and maintainer, is built on the multiplatform R language, but much of its additional infrastructure is Unix-based. That has meant that researchers using Windows have previously had to jump through some rather awkward hoops to use it.

Two of the nice things about git are the ability to create lightweight branches, and the ability to rewrite commit history to rationalise things after the fact. As a relatively recent migrant from Subversion, however, these are things that I sometimes forget about, and I therefore don't always make full