Should git-cinnabar be included into firefox development overlay?

[kvark]

git cinnabar is required by ./mach try commands, so I'd argue that it should be included by default.

[kvark]

Also, less is expected by default by git, so we should include that.

[nbp]

I am open to both, the problem I see with this approach is that mach might try to be clever based on programs which are installed, such as downloading the source code or using a tool even if it does not match the fetched source.

What I used to do is to start a nix-shell without the --pure argument, to use the tool which is provided in the environment.

Either sounds fine to me.