Hi Paul, That's an interesting question, and I have a few thoughts below. Before I get to those, I wanted to point out an issue with the way you started your email with "Hey Gents": the Raku community includes many talented women, and I'd love to see it include more.
On to the technical question: > Given this, I'd like the main program to perform a prefix search of installed > modules with that > namespace as a prefix, load said modules it finds, perform callbacks that I > would designate as > being required to successfully load the module, etc. I _believe_ something like this should be possible with CompUnit::Repository::Installation, or maybe with CompUnit::RepositoryRegistry. I say "believe" both because I haven't tried it myself and because the documentation for CompUnit isn't yet very complete – indeed, ::RepositoryRegistry seems to be entirely undocumented. The docs at https://docs.raku.org/type/CompUnit::Repository::Installation#method_candidates might be a good starting point, but this is unfortunately an area that will probably take a bit more digging in the source. If you find a good solution, please let us all know – as I said, it's an interesting question. I hope that was helpful!