I have a package, which I am thinking to submit to CRAN. It can output graphics/plots to the kitty terminal (https://sw.kovidgoyal.net/kitty/). However, I am not sure if and how I should indicate the dependency on kitty. The package builds and installs fine without kitty. However, you can't really use it without it (it will generate errors when you try).

Two possible fields in the DESCRIPTION could be:

SystemRequirements: kitty

And since, kitty only runs on macos and linux:

OS_type: unix

Should I add these? Like above?

Thanks!

Jan

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