So, `pags_root` is the meta-PAGS-group such that all other PAGS groups are members of it, sooner or later (might be a member-of-a-member-of-a-member).  Feasible to automate detecting PAGS groups that are

1. Not `pags_root`, and
2. Not a member of some other PAGS group

and making those groups the members of `pags_root`, at import, so that the deployer doesn't have to take care to correctly manually enumerate the members of `pags_root` here?