Guix has a mechanism called search-paths which is defined for any package like Python that searches for things based on envars; it exports the relevant search p

Guix has a mechanism called search-paths which is defined for any package like Python that searches for things based on envars; it exports the relevant search paths into the environment. Though it also has shell wrappers, which are essentially a hack around non-propagating dependencies: it allows you to expose things that would normally be visible to everyone, like executables, to just the specific program.