Language and terminology Language Most existing Lix documentation is written in British English. We intend to continue with that. Terminology (FIXME: unsure if this should be in the style guide but ... it kinda should be -jade) Nix language - Use this to refer to the language which haunts us all. Nix - Nix refers to the technology . Used when referring to the Nix store, for example. Or, to a Nix derivation. Lix is a Nix implementation. CppNix - This is the preferred term for when it is necessary to refer to Nix, the software that Lix is forked from, rather than the technology. Lix - Use Lix when referring to the implementation. For example, "Install Lix". nix , nix-build , etc - Use lowercase nix when referring to the nix command, which is still supported by Lix.