Starting from a tree with nothing in it, deliver one complete standalone Foundry project made of two components with a seam between them, and nothing more.

Write the build configuration and the directory layout by hand, and depend on nothing that must be fetched — no package manager, no vendored test framework, no submodules of any kind — because the verifier re-runs the build and the suite offline with no network and no credentials, and a pointer it cannot fetch reads as a build failure …