Other Tiki sites in addition to this one can be made into profile repositories. Such custom repositories can then be listed in the profiles admin panel (Admin Home > Profiles > Repositories) of the same or another site where the profile is to be applied. This page explains the steps necessary to make a Tiki site a profile repository.
Note
Custom repositories may be helpful for testing or in cases where there are firewall issues. But please remember to contribute useful profiles to this site as well so that they are available to the Tiki Community.