The function sets the environment variable RCZECHIA_HOME to be used as a local cache for RCzechia remote files; if unset tempdir() is used instead, with persistence for current session only.
set_home(path)TRUE for success and FALSE for failure; returned silently
path to local filesystem directory to be used as a cache; must exist and must be writable
Note that when set (it is unset by default) the remote files will be cached to local file system and persist between R sessions, for good or bad.
Also note that you can set the value of RCZECHIA_HOME environment variable directly, either via a Sys.setenv() call or via your .Renviron file.