[Nix-dev] development environments

[Lucas Paul]

I'm just learning how to make software in nix (with some help from the
wiki). If I want to use an IDE, say Leksah, should that be in the
build environment too, or should I install that into my default
profile?

On the one hand, it's an end-application, so it seems like it should
go in my default profile. But there are several different versions of
it, apparently depending on the version of GHC you have, which seems
to make it more suited to a build environment. Help?

- Lucas