Functoria.Installval v : ?bin:(Fpath.t * Fpath.t) list -> ?etc:Fpath.t list -> unit -> tv ~bin:[(src,dst),...] ~etc () is the installation of src as dst as binary files, and etc as configuration/artifact.
val empty : tempty is the installation of nothing.
val pp : t Fmt.tPrint the .install rules to install t
val pp_opam : ?subdir:Fpath.t -> unit -> t Fmt.tPrint the opam rules to install t. If ~subdir is provided, this will be used as prefix (i.e. if your unikernel is in the "tutorial/hello/" subdirectory (which is passed as ~subdir, the install instructions will use cp tutorial/hello/dist/hello.hvt %{bin}%/hello.hvt).
dune ~context_name_for_bin ~context_name_for_etc () is the dune rules to promote installed files back in the source tree. A context-name is required for bin and etc artifacts. The first one should be the cross-compiler context and the second one should be the host's compiler context.
val dump : t Fmt.tDump installation rules.